New Holland TD60D Repair Manual

New Holland TD60D Repair Manual

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REPAIR MANUAL
NEW HOLLAND
TD60D
TD70D
TD80D
TD90D
TD95D

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Summary of Contents for New Holland TD60D

  • Page 1 REPAIR MANUAL NEW HOLLAND TD60D TD70D TD80D TD90D TD95D...
  • Page 3 TD60D - - TD70D - - TD80D - - TD90D - - TD95D MODEL TRACTORS SERVICE MANUAL SECTIONS GENERAL ........... .
  • Page 4 These pages will be supplemented by a reprint of the updated contents page. ◊ The information contained in this manual was current on the date printed on each section. As NEW HOLLAND constantly improves its product range, some information may be out of date subsequent to modifications im- plemented for technical or commercial reasons or to meet legal requirements in different countries.
  • Page 5 HOLLAND Repair Manual − TD Series Tractors CONTENTS GENERAL SECTION 00 General Instructions and Health and Safety Chapter 1 Section Description Page 00 000 General instructions ............. Notes for spare parts .
  • Page 6 CLUTCH SECTION 18 Clutches Chapter 1 Section Description Page 18 000 General specifications ............Tightening torques .
  • Page 7 DRIVE LINES SECTION 23 Drive Lines Chapter 1 Section Description Page 23 000 Main specification ............. . . Torque settings and Tools .
  • Page 8 ............33.206 Front brake assembly mod. TD60D and TD70D removal and refitting − overhauling on the bench .
  • Page 9 Open Centre System Auxiliary Control Valves Chapter 2 Section Description Page 35 000 Main data − Tools ............. . . Cross−sectional views .
  • Page 10 CAB AIR CONDITIONING SYSTEM SECTION 50 Cab air conditioning system Chapter 1 Section Description Page 50 000 Safety instructions ............. . General characteristics .
  • Page 11 Charging System Chapter 4 Section Description Page 55 000 Technical information ............Tightening torques .
  • Page 12 SECTION 90 Removing parts Chapter 1 Section Description ............. . Page 90 160 42 −...
  • Page 13 SECTION 00 − GENERAL − CHAPTER 1 GENERAL INSTRUCTIONS IMPORTANT NOTICE All maintenance and repair operations described in this manual should be carried out exclusively by the NEW HOLLAND authorised workshops. All instructions detailed should be carefully observed and special equipment indicated should be used if necessary.
  • Page 14 SECTION 00 − GENERAL − CHAPTER 1 NOTES FOR SPARE PARTS Use exclusively genuine NEW HOLLAND spare parts, the only ones that guarantee same quality, life, safety as original components as they are the same as mounted in production. Only genuine spare parts can offer this guarantee.
  • Page 15 SECTION 00 − GENERAL − CHAPTER 1 SAFETY RULES PAY ATTENTION TO THIS SYMBOL This warning symbol points out important messages involving personal safety. Carefully read the safety rules contained herein and follow advised precautions to avoid potential hazards and safeguard your safety and personal integrity. In this manual you will find this symbol together with the following key−words: WARNING −...
  • Page 16 SECTION 00 − GENERAL − CHAPTER 1 ◊ ◊ Use exclusively specified towing points for tow- In case of operations outside the workshop, drive ing the tractor. Connect parts carefully. Ensure the tractor to a flat area and block it. If working on that foreseen pins and/or locks are steadily fixed an incline cannot be avoided, first block the trac- before applying traction.
  • Page 17 SECTION 00 − GENERAL − CHAPTER 1 START UP HYDRAULIC SYSTEMS ◊ Some fluid slowly coming out from a very small ◊ Never run the engine in confined spaces which port can be almost invisible and be strong enough are not equipped with adequate ventilation for to penetrate the skin.
  • Page 18 Hydrostatic steering circuit ..Front axle : − axle housing : TD60D, TD70D models ..TD80D, TD90D, TD95D models . final drives (each) : TD60D, TD70D models ..
  • Page 19 SECTION 10 − ENGINE − CHAPTER 1 SECTION 10 − ENGINE Chapter 1 − Engine CONTENTS Section Description Page 10 000 General specifications ............Injection pump calibration data .
  • Page 20 Total displacement: − mod. TD60D−TD70D ........2931 cm −...
  • Page 21 Cooling system ........coolant circulation Radiator on TD60D, TD70D, TD80D and TD90D models ..three−row vertical pipes with copper fins Radiator on TD95D models .
  • Page 22 SECTION 10 − ENGINE − CHAPTER 1 (continued) GENERAL SPECIFICATIONS 3 cylinders 4 cylinders Timing ..........overhead valves operated by a camshaft located in the engine block through tap- pets, pushrods and rockers.
  • Page 23 Injection order ......... 1−2−3 (TD60D and TD70D) 1−3−4−2 (TD80D, TD90D and TD95D)
  • Page 24 SECTION 10 − ENGINE − CHAPTER 1 TD60D MODEL − CALIBRATION DATA FOR BOSCH INJECTION PUMP TYPE VE 3/12 F 1250 L 976 − 504054473 ASSEMBLY DATA Test bench conforming to ISO 4008/1.../2 Pump timing on engine: delivery start 4° ± 0.5° befo-...
  • Page 25 SECTION 10 − ENGINE − CHAPTER 1 (continued) 11. DELIVERY PROGRESSION Rev/min Delivery per 1000 shots: cm 1390 0 to 3 1300 49.5 to 50.5 1250 63.5 to 68.5 77.3 to 77.7 68,0 12. ZERO DELIVERY (STOP) Rev/min Voltage (volts) Delivery per 1000 shots: cm 0 to 3 13.
  • Page 26 SECTION 10 − ENGINE − CHAPTER 1 TD70D MODEL − CALIBRATION DATA FOR BOSCH INJECTION PUMP TYPE VE 3/12 F 1250 L 977 − 504054474 ASSEMBLY DATA Test bench conforming to ISO 4008/1.../2 Pump timing on engine: delivery start 0° ± 0.5° befo- Injectors conforming 7440−A61...
  • Page 27 SECTION 10 − ENGINE − CHAPTER 1 (continued) 12. DELIVERY PROGRESSION Rev/min LDA pressure Delivery per 1000 shots: cm 1390 0 to 3.0 1350 32 to 33 1250 66 to 71 76.5 to 76.9 27,5 76.2 to 77.2 73.8 to 74.2 13.
  • Page 28 SECTION 10 − ENGINE − CHAPTER 1 TD80D MODEL − CALIBRATION DATA FOR BOSCH INJECTION PUMP TYPE VE 4/12 F 1250 L 985 − 504041416 ASSEMBLY DATA Test bench conforming to ISO 4008/1 .../2 Injectors conforming 7440−A61 − ± 0.5 Pump timing on engine: delivery start 4 before (1.688.901.027 with calibrated pad ∅...
  • Page 29 SECTION 10 − ENGINE − CHAPTER 1 (continued) 11. DELIVERY PROGRESSION Rev/min Delivery per 1000 shots: cm 1400 0 to 3 1250 60.0 to 66.0 1000 65.2 to 70.3 63.5 to 70.3 12. ZERO DELIVERY (STOP) Rev/min Voltage (volts) Delivery per 1000 shots: cm 0 to 3 13.
  • Page 30 SECTION 10 − ENGINE − CHAPTER 1 TD90D MODEL − CALIBRATION DATA FOR BOSCH INJECTION PUMP TYPE VE 4/12 F 1250 L 982 − 504042214 ASSEMBLY DATA Test bench conforming to ISO 4008/1 .../2 Injectors conforming 7440−A61 − ± 0.5 Pump timing on engine: delivery start 1 before (1.688.901.027 with calibrated pad ∅...
  • Page 31 SECTION 10 − ENGINE − CHAPTER 1 (continued) 11. DELIVERY PROGRESSION Rev/min Delivery per 1000 shots: cm 1400 0 to 3 1250 69.5 to 75.5 77.5 to 82.5 76.5 to 83.5 12. ZERO DELIVERY (STOP) Rev/min Voltage (volts) Delivery per 1000 shots: cm 0 to 3 13.
  • Page 32 SECTION 10 − ENGINE − CHAPTER 1 TD95D MODEL − CALIBRATION DATA FOR BOSCH INJECTION PUMP TYPE VE 4/12 F 1250 L 952 − 504042718 ASSEMBLY DATA Test bench conforming to ISO 4008/1 .../2 Injectors conforming 7440−A61 − ± 0.5 Pump timing on engine: delivery start 0 before (1.688.901.027 with calibrated pad ∅...
  • Page 33 SECTION 10 − ENGINE − CHAPTER 1 (continued) 12. DELIVERY PROGRESSION Rev/min LDA pressure Delivery per 1000 shots: cm 1405 0 to 3.0 1250 66 to 72 75.5 to 80.5 72 to 78 66 to 72 13. ZERO DELIVERY (STOP) rpm: 300 Voltage (volts): Delivery per 1000 shots: cm...
  • Page 34 SECTION 10 − ENGINE − CHAPTER 1 FUEL SUPPLY PUMP DATA mm (in.) Eccentricity of drive shaft ........3 (0.1181) Diameter of drive shaft at bushings .
  • Page 35 SECTION 10 − ENGINE − CHAPTER 1 CRANKSHAFT AND BEARINGS DATA mm (in.) Crankshaft ..........balanced with integral counterweights Standard journal diameter .
  • Page 36 SECTION 10 − ENGINE − CHAPTER 1 (continued) BENCH TEST PERFORMANCE DATA mm (in.) Maximum permitted tolerance on run−out of flywheel mounting flange surface relative to the crankshaft centreline, measured with 1/100 mm (0.0394/3.94 in.) scale dial gauge resting on front flange surface at a diameter of 108 mm (4.252 in.) (total gauge reading).
  • Page 37 SECTION 10 − ENGINE − CHAPTER 1 mm (in.) PISTON DATA TD60D, TD80D TD70D, TD90D, TD95D Pistons ..........
  • Page 38 SECTION 10 − ENGINE − CHAPTER 1 VALVE TIMING GEAR DATA mm (in.) Timing gear tooth backlash ....... . 0.160 (0.0063) Inside diameter of intermediate gear bushings (fitted and reamed) .
  • Page 39 SECTION 10 − ENGINE − CHAPTER 1 ROCKER ARM − VALVE DATA mm (in.) Diameter of shaft bores in rocker arms ..... . 18.016 to 18.034 (0.7093 to 0.71) Rocker−arm shaft diameter .
  • Page 40 SECTION 10 − ENGINE − CHAPTER 1 CYLINDER HEAD DATA mm (in.) Cylinder Head ......... . . with valve seats cut directly in the casting and press−fitted steel valve guides.
  • Page 41 SECTION 10 − ENGINE − CHAPTER 1 mm (in.) LUBRICATION SYSTEM DATA TD60D, TD80D TD70D, TD90D and TD95D Assembly clearance between oil pump drive shaft and bushing . 0.016 to 0.055 − (0.0006 to 0.0022) Clearance between shaft and driven gear ....
  • Page 42 28.7692 to − cylinder block and flywheel case 36.1405 • TD60D, TD70D, TD80D and TD90D models ....M 10 X 1.25 49 to 59 36.1405 to 43.5161...
  • Page 43 SECTION 10 − ENGINE − CHAPTER 1 TOOLS X 380000219 Punch for valve guide extraction / installation. X 380000276 Twist bit for enlarging valve guide WARNING: The operations described in this section bore. can only be carried out with the ESSENTIAL tools indicated by an (X).
  • Page 44 SECTION 10 − ENGINE − CHAPTER 1 Splining tool to be manufactured for assembling the crankshaft front seal (print on the tool no. 50138 − values in mm). Material UNI C40. 26102 603.54.471.00 − 11 − 2004...
  • Page 45 SECTION 10 − ENGINE − CHAPTER 1 Splining tool to be manufactured for assembling the crankshaft rear seal (print on the tool no. 50139 − values in mm). Material UNI C40. 26103 603.54.471.00 − 11 − 2004...
  • Page 46 SECTION 10 − ENGINE − CHAPTER 1 MIG0491A Longitudinal section of 3−cylinder TD60D and TD70D Models 1. Rocker shaft pedestal bolts 5. Big−end cap bolts 2. Cylinder head bolts 6. Fan and alternator pulley bolts 3. Flywheel bolts 7. Crankshaft hub bolts 4.
  • Page 47 SECTION 10 − ENGINE − CHAPTER 1 MIG0492A Cross−section of 3−cylinder TD60D and TD70D Models 603.54.471.00 − 11 − 2004...
  • Page 48 SECTION 10 − ENGINE − CHAPTER 1 MIG0493A Longitudinal section of 4−cylinder model TD80D, TD90D and TD95D Models 1. Rocker shaft pedestal bolts 5. Big−end cap bolts 2. Cylinder head bolts 6. Fan and alternator pulley bolts 3. Flywheel bolts 7.
  • Page 49 SECTION 10 − ENGINE − CHAPTER 1 MIG0494A Cross−section of 4−cylinder model TD80D, TD90D and TD95D 1. Counterweight retaining bolts 603.54.471.00 − 11 − 2004...
  • Page 50 SECTION 10 − ENGINE − CHAPTER 1 603.54.471.00 − 11 − 2004...
  • Page 51 SECTION 10 − ENGINE − CHAPTER 1 603.54.471.00 − 11 − 2004...
  • Page 52 SECTION 10 − ENGINE − CHAPTER 1 25363 25364 Engine cooling system. a. Coolant circulation with thermostat valve closed 2. Coolant pump b. Coolant circulation with thermostat valve open 3. Temperature gauge for engine coolant c. 3−cylinder models temperature d. 4−cylinder models 4.
  • Page 53 SECTION 10 − ENGINE − CHAPTER 1 ENGINE TROUBLESHOOTING Faults Possible Cause Correction Engine does not start. 1. Batteries partially discharged. Check and recharge battery. Replace if necessary. 2. Battery terminal connections Clean, inspect and tighten terminal nuts. Replace terminals and nuts if corroded or loose.
  • Page 54 SECTION 10 − ENGINE − CHAPTER 1 ENGINE TROUBLESHOOTING (continued) Faults Possible Cause Correction Engine overheats. 1. Coolant pump malfunction. Overhaul or replace pump. 2. Faulty thermostat. Replace the thermostat. 3. Radiator inefficient. Remove internal deposits by flushing. Check for leaks and rectify. 4.
  • Page 55 SECTION 10 − ENGINE − CHAPTER 1 ENGINE TROUBLESHOOTING (continued) Faults Possible Cause Correction 8. Fuel supply pump damaged. Replace fuel supply pump. 9. Incorrect valve clearances. Adjust valve clearance. 10. Cylinder compression low. Test compression and overhaul engi- ne if necessary. 11.
  • Page 56 SECTION 10 − ENGINE − CHAPTER 1 ENGINE TROUBLESHOOTING (continued) Faults Possible Cause Correction Engine produces excessive 1. Maximum delivery of injection Adjust injection pump on test bench to black or dark grey smoke. the values specified in calibration pump too high. chart.
  • Page 57 SECTION 10 − ENGINE − CHAPTER 1 ENGINE Removal − Installation (Operation 10 001 10) DANGER Lift and handle all heavy parts using suitable lifting equipment. Make sure that assemblies or parts are supported by means of suitable slings and hooks. Check that no one is in the vicinity of the load to be lifted.
  • Page 58 SECTION 10 − ENGINE − CHAPTER 1 5. Remove the weights (1) from the front support. TRE0602A 6. Remove the exhaust pipe, attach lifting chains to the bonnet (1) and attach the chain to the hoist. 24872 7. Disconnect the electrical leads (1) from headlamps (2).
  • Page 59 SECTION 10 − ENGINE − CHAPTER 1 9. Remove the four bonnet hinge bolts (1) and lift the bonnet clear. TRE0604A 10. Remove the wire mesh guard (1) from right− hand side of the fan. 25028 11. Disconnect the tachometer cable (1) and remove the retaining ring and sleeve.
  • Page 60 SECTION 10 − ENGINE − CHAPTER 1 13. After recovering the air−conditioner gas (HRC 134a) with the recovery and recycling station 294048, disconnect the pipes of the cab air conditioner (1) and (2). 24892 14. Detach the cab heating pipes (1) and (2). 25411 15.
  • Page 61 SECTION 10 − ENGINE − CHAPTER 1 16. Disconnect the electrical connectors. Detach the fusebox by unscrewing the nut (1). TRE0606A 17. Disconnect the delivery and return lines (1) to the power steering cylinders. TRE0607A 18. Remove the hose (1) from the lift pump suction pipe.
  • Page 62 SECTION 10 − ENGINE − CHAPTER 1 19. Detach the lift pump delivery pipe (1). TRE0609A 20. Detach the fuel pipes from the injection pump and fuel pump and the pipe connecting the tank to the sedimentation filter. TRE0610A 21. Remove the fuel filter (1) complete with its sup- port.
  • Page 63 SECTION 10 − ENGINE − CHAPTER 1 22. Remove the front, centre and rear retaining bolts from the front axle drive shaft guard and remove the guard. 25038 23. Remove the circlip (2) from the front of the prop shaft and slide the sleeve (1), in the direction shown by the arrow, until it is free of the splines on the front axle.
  • Page 64 SECTION 10 − ENGINE − CHAPTER 1 26. Withdraw the pin securing the differential lock knob, remove the knob and remove the mat from the floor. TRE0611A 27. Unscrew the nuts (1) and the bolts securing the engine to the transmission. Access is through the two slots in the cab floor.
  • Page 65 SECTION 10 − ENGINE − CHAPTER 1 29. Position stand 380000236 underneath the trac- tor and insert a wedge (1), either side of the axle, to prevent the axle from pivoting. 25050 30. Insert a wooden block between the stands and the tractor.
  • Page 66 SECTION 10 − ENGINE − CHAPTER 1 35. Place a fixed stand (1) underneath the front weight support and chock the wheels with wooden wedges (2). 25056 36. Insert the pin of kit 380000612 (11”/11” clutch) or the pin 380000292 (12”/12” clutch) (1) into the central hole of the clutch.
  • Page 67 SECTION 10 − ENGINE − CHAPTER 1 38. Attach the engine to the hoist using an adjustable chain (1) attached to the lifting points provided on the engine. 25060 39. Remove the lift pump (1) complete with its filter by unscrewing the four retaining bolts. TRE0614A 40.
  • Page 68 SECTION 10 − ENGINE − CHAPTER 1 41. Slacken of the hose clamp and detach hose (1) from the inlet manifold. TRE0616A 42. Remove the left−hand side fan guard (1). TRE0617A 43. Unscrew the bolts (1) securing the silencer to its bracket.
  • Page 69 SECTION 10 − ENGINE − CHAPTER 1 46. Using the hoist, raise the engine slightly and position the moveable stand (1) under the front axle. 25068 47. Undo the hose clamp and disconnect the bottom radiator hose (1). 48. Unscrew the four bolts (2) securing the engine to the front axle support, and lower the engine onto a wooden platform.
  • Page 70 SECTION 10 − ENGINE − CHAPTER 1 — Apply LOCTITE sealing compound to the mating — Connect the two flexible power steering pipes to surfaces of the overdrive clutch housing. the union on the left−hand side of the front axle. Secure the two pipes with the special clamp and —...
  • Page 71 SECTION 10 − ENGINE − CHAPTER 1 ENGINE Removal − Installation (Operation 10 001 54) WARNING Handle all parts carefully. Do not put your hands or fingers between parts. Wear suitable safety clothing, safety goggles, gloves and footwear. 1. Remove the front and rear retaining screws from the bonnet stay bracket (1).
  • Page 72 SECTION 10 − ENGINE − CHAPTER 1 8. Unscrew the union (1) from the water supply pipe to the cab heater. 25074 9. Loosen the hose clamp (1) and detach the hose from the coolant pump. Remove the curved hose and flexible cab heater hoses.
  • Page 73 SECTION 10 − ENGINE − CHAPTER 1 12. Unscrew the pump support bolts (1) and the silencer support bolt. Remove the two supports. 25078 13. Fit mounting bracket (1) of the set 380000313 to permit attachment of the engine to the rotary stand 380000201.
  • Page 74 SECTION 10 − ENGINE − CHAPTER 1 17. Unscrew the bolts (1) securing the exhaust manifold to the cylinder head and remove the manifold. 25082 18. Detach the throttle control lever (1) from the injection pump. 25083 19. Remove the thermostat housing retaining bolts (1) and remove the thermostat housing.
  • Page 75 SECTION 10 − ENGINE − CHAPTER 1 21. Unscrew the bolts (1) securing the inlet manifold to the cylinder head and remove the manifold. 25086 22. Unscrew the unions (1) on the fuel supply pump and detach the fuel lines. 25087 23.
  • Page 76 SECTION 10 − ENGINE − CHAPTER 1 25. Unscrew the nut (1) securing the injection pump drive gear to the pump shaft. 25090 26. Extract the injection pump gearing using tool 380000835 (1) and remove the injection pump. NOTE: If the injection pump does not require any specialist work it must be removed following the in- structions given on page 118.
  • Page 77 SECTION 10 − ENGINE − CHAPTER 1 29. Unscrew the retaining nut (1) and remove the fuel pump support complete with the pump. Retain the gasket for re−use, if undamaged. 25094 30. Unscrew the power steering pump retaining bolts (1) and remove the pump complete with filter and accumulator on the delivery line.
  • Page 78 SECTION 10 − ENGINE − CHAPTER 1 33. Remove the injector mounting nuts and the spherical washers beneath, then the supports and the injectors themselves. 34. Remove the rocker cover bolts (1), washers and seals and then the rocker cover and its gasket. 25098 35.
  • Page 79 SECTION 10 − ENGINE − CHAPTER 1 39. Turn the engine upside down on the rotary stand. Remove the sump pan bolts, the sump pan (1) and its gasket (2). 25102 40. Unscrew the retaining bolts and remove the oil pick−up pipe (1) complete with the strainer and seal.
  • Page 80 SECTION 10 − ENGINE − CHAPTER 1 45. Remove the rotating counterweight oil seal O−ring (1) installed on the crankcase mating surface. 25106 46. Undo the retaining bolts (1) and remove the complete oil pump assembly. NOTE: For TD90D and TD95D models see fig. 106 on page 66.
  • Page 81 SECTION 10 − ENGINE − CHAPTER 1 49. Pull the pulley hub off the crankshaft using tool 380000226 (1) and retain the woodruff key for re−use. 25110 50. Unscrew the retaining bolt (1) and remove the timing cover and its gasket. 25111 51.
  • Page 82 SECTION 10 − ENGINE − CHAPTER 1 53. Unscrew the retaining bolts (1) and remove the intermediate gear journal. 25114 54. Unscrew the retaining bolts (4) and withdraw the camshaft (2) complete with the camshaft gear (1) and the end plate (3). 25115 55.
  • Page 83 SECTION 10 − ENGINE − CHAPTER 1 57. Renew the O−ring seal (1) installed in the lift pump drive shaft lubrication line. 58. Remove the crankcase − timing gear case gasket. 25118 59. Rotate the engine on the stand through 90_. Unscrew the big−end cap bolts (2) and remove the big−end caps (1), complete with their half shell bearings.
  • Page 84 SECTION 10 − ENGINE − CHAPTER 1 63. Unscrew the main bearing cap bolts (1) and remove the main bearing caps with related bearing shells. Remove the thrust washers located on the penultimate main bearing, as shown in the figure. 64.
  • Page 85 SECTION 10 − ENGINE − CHAPTER 1 NOTE: Operations 1 to 9, relative to the dismantling of the rotating counterweight dynamic balancer, only apply to 4−cylinder models. 1. Remove the lubricating oil pipe (3) fig. 108. 2. Remove the circlip (18). 3.
  • Page 86 SECTION 10 − ENGINE − CHAPTER 1 GENERAL NOTES AND INFORMATION — After dismantling the engine, clean all parts carefully. — To reassemble the engine, carry out the dis- mantling operations described on pages 53 to 67 in reverse order. —...
  • Page 87 SECTION 10 − ENGINE − CHAPTER 1 INSTALLING THE TAPPETS AND CRANKSHAFT WITH MAIN BEARING CAPS, BEARINGS AND THRUST RINGS; CHECKING CRANKSHAFT END FLOAT (Disassembly operations 63 − 64) Proceed as follows: — Install the tappets in their crankcase bores. —...
  • Page 88 SECTION 10 − ENGINE − CHAPTER 1 — Tighten all cap bolts (1) to a torque of 80 Nm (59.0050 ft lb). 24720 — Tighten each cap bolt (1) through a further 90° using tool 380000304 (2). 24744 — Check that crankshaft endfloat does not exceed the value specified on page 17.
  • Page 89 SECTION 10 - - ENGINE - - CHAPTER 1 INSTALLING THE REAR COVER WITH SEAL, AND ENGINE FLYWHEEL (Disassembly operation 62) Proceed as follows: — Fit the rear oil seal carrier (3) with the outer seal. Tighten retaining bolts (2) to the torque specified on page 24.
  • Page 90 SECTION 10 − ENGINE − CHAPTER 1 INSTALLING THE PISTONS COMPLETE WITH RINGS, PINS, CONNECTING RODS, BIG END CAPS AND BEARINGS − CHECKING PROTRU- SION IN RELATION TO CYLINDER BLOCK FACE (Disassembly operations 59 and 60) Proceed as follows: — Lubricate pistons, rings and cylinder liners with engine oil prior to fitting.
  • Page 91 SECTION 10 − ENGINE − CHAPTER 1 SYNCHRONIZING THE TIMING GEARS (Disassembly operations 51 − 55) Proceed as follows: — Remove the cover and gasket from the flywheel housing inspection window. 25167 — The flywheel is marked in degrees BTDC. Rotate the crankshaft to bring cylinder no.
  • Page 92 SECTION 10 − ENGINE − CHAPTER 1 REFITTING THE COUNTER−ROTATING WEIGHT BOX TO THE OIL SUMP (Disassembly operation 41) When refitting the counter−rotating weight box, syn- chronise as follows: — Bring piston no. 1 to TDC. — Position the rotating counterweights so that the timing reference marks are aligned as shown in the figure.
  • Page 93 SECTION 10 − ENGINE − CHAPTER 1 REFITTING THE BOSCH INJECTION PUMP (Disassembly operations 23 − 26) — Fit the BOSCH injection pump and proceed with the injection pump timing in the manner described on pages 121 to 124. 25181 FITTING THE CYLINDER HEAD GASKET (Disassembly operation 38) Proceed as follows:...
  • Page 94 SECTION 10 − ENGINE − CHAPTER 1 FITTING AND TIGHTENING THE CYLINDER HEAD (Disassembly operation 37) Proceed as follows: — Lower the cylinder head onto the block and screw in the cylinder head bolts (1) fig. 135, finger tight. — fig. 133 − Tightening sequence for cylinder head bolts on 3−cylinder engines to be followed for each of the four tightening stages (A = fan end).
  • Page 95 SECTION 10 − ENGINE − CHAPTER 1 ADJUSTING VALVE/ROCKER ARM CLEARANCE (Disassembly operation 34) — Before refitting the rocker cover, adjust the valve clearances as described on pages 128 − 130. — Tighten the rocker arm adjuster screw locknuts (1) to the torque specified on page 24. 25178 FITTING THE INJECTORS (Disassembly operation 33)
  • Page 96 SECTION 10 − ENGINE − CHAPTER 1 CHECKS, MEASUREMENTS AND REPAIRS − CYLINDER BLOCK and CYLINDER LINERS WARNING Handle all parts carefully. Do not put your hands or fingers between parts. Wear suitable safety clothing, safety goggles, gloves and footwear. Clean all parts carefully before proceeding with the operations described below.
  • Page 97 SECTION 10 − ENGINE − CHAPTER 1 — Press the worn liner out of the block, operating from the bottom of the crankcase, using a stepped plate of appropriate diameter. — Check the ovality of the bore in the block and rebore if necessary to 0.22 mm (0.0087 in.) oversize.
  • Page 98 25313 Standard dimensions (mm) of main bearing journals and crankpins, main bearings and semi−circular thrust washers. a. TD60D and TD70D models. d. Normal crankshaft journal radii and fillets. b. TD80D, TD90D and TD95D models. e. Radii and fillets of crankshaft journal with c.
  • Page 99 Maximum tolerances for alignment of main bearing journals and crankpin relative to crankshaft centreline and alignment of crankpins relative to main bearing journals (a) b. TD60D and TD70D models D. Maximum permissible main bearing journal c. TD80D, TD90D and TD95D models alignment deviation A.
  • Page 100 SECTION 10 − ENGINE − CHAPTER 1 Bearings Check the clearance between the crankshaft journals and bearing shells using a calibrated wire gauge as follows: — make sure that all parts are perfectly clean and remove all traces of oil; —...
  • Page 101 SECTION 10 − ENGINE − CHAPTER 1 Flywheel The flywheel is fixed to the crankshaft flange by means of self−locking bolts. The starter ring gear is shrunk−fit, after pre−heating, to the register on the engine side of the flywheel. If the ring gear is to be replaced, heat in oil to 80° to 90°...
  • Page 102 SECTION 10 − ENGINE − CHAPTER 1 CHECKS, MEASUREMENTS AND REPAIRS − CONNECTING RODS CAUTION Handle all parts carefully. Do not place hands or fin- gers between one part and another. Wear the recom- mended safety clothing such as goggles, gloves and safety boots.
  • Page 103 SECTION 10 − ENGINE − CHAPTER 1 CHECKS, MEASUREMENTS AND REPAIRS − PISTONS WARNING Handle all parts carefully. Do not put your hands or fingers between parts. Wear suitable safety clothing, safety goggles, gloves and footwear. Clean all parts carefully before carrying out the following operations.
  • Page 104 SECTION 10 − ENGINE − CHAPTER 1 MIG0495A Dimensions (mm) of standard pistons, gudgeon pins and rings. a. TD60D and TD80D models. Piston diameter measured b. TD70D, TD90D and TD95D models. (0.4724 in.) from the base of the skirt. A. Measurement to be obtained with rings inserted in cylinder liners.
  • Page 105 SECTION 10 − ENGINE − CHAPTER 1 Check that the piston/connecting rod assembly is perfectly square. If not, replace parts causing the problem. 25108 NOTES: — Oil the pistons, rings and liners before inserting the pistons in their bores. — Before fitting the ring clamp 380000220 (1) to compress the rings for insertion in the liner, check that the ring end gaps are offset by an angle of 180°...
  • Page 106 SECTION 10 − ENGINE − CHAPTER 1 CHECKS, MEASUREMENTS AND REPAIRS − CAMSHAFT, TAPPETS AND VALVES WARNING Handle all parts carefully. Do not put your hands or fingers between parts. Wear suitable safety clothing, safety goggles, gloves and footwear. Clean all parts carefully before carrying out the following operations.
  • Page 107 Dimensions (mm) of camshaft journals and relative seats in cylinder block. b. TD80D, TD90D and TD95D models. a. TD60D and TD70D models. NOTE: The value indicated for the bushing inside diameter is for an installed bush. 603.54.471.00 − 11 − 2004...
  • Page 108 SECTION 10 − ENGINE − CHAPTER 1 Valve timing check To check the valve timing after dismantling/assembly or overhaul of the valve timing gear, proceed as follows: Check that the timing reference marks on the timing gears are aligned as indicated on page 73. Provisionally set valve clearances to 0.45 mm (0.0177 in.).
  • Page 109 SECTION 10 − ENGINE − CHAPTER 1 CHECKS, MEASUREMENTS AND REPAIRS − CYLINDER HEAD WARNING Handle all parts carefully. Do not put your hands or fingers between parts. Wear suitable safety clothing, safety goggles, gloves and footwear. Use valve spring compressor 380000302 to remove and refit valve springs.
  • Page 110 SECTION 10 − ENGINE − CHAPTER 1 VALVE GUIDES Replacement (Operation 10 101 53) WARNING Lift and handle all heavy parts using suitable lifting equipment. Make sure that assemblies or parts are supported by means of suitable slings and hooks. Check that no one is in the vicinity of the load to be lifted.
  • Page 111 SECTION 10 − ENGINE − CHAPTER 1 NOTE: When replacing exhaust valve guides you must also carry out the following further operations. 5. Measure the distance (L) between the cylinder head face and the base of the valve guide using a caliper gauge and the special plate of tool 380000277.
  • Page 112 SECTION 10 − ENGINE − CHAPTER 1 8. Position the plate (3) of tool 380000277 flush against the cylinder head face and slide the depth stop (2) up to the plate. Measure the distance (A) between the depth stop and the end of the cutter shank (1).
  • Page 113 Dimensions (mm) of valve seats and guide valves. A. Inlet. B. Depth of taper on 3 and 4−cylinder engines. S. Exhaust. C. Engines for TD60D and TD80D models. D. Engines for TD70D, TD90D and TD95D models MIG0496A 603.54.471.00 − 11 − 2004...
  • Page 114 SECTION 10 − ENGINE − CHAPTER 1 INJECTOR SLEEVES − Replacement (Operation 10 101 60). WARNING Handle all parts carefully. Do not put your hands or fingers between parts. Wear suitable safety clothing, safety goggles, gloves and footwear. 1. If the cylinder head face has been reground, check that injector protrusion is within the tolerance limits specified on page 22.
  • Page 115 SECTION 10 − ENGINE − CHAPTER 1 8. Fit guide bush 380000830 (10) fig.179 in the new sleeve (12), securing it in position by turning the ring nut (9) clockwise. Insert reamer (7) 380000831 in guide bush (10) and ream the low- er part of the sleeve.
  • Page 116 SECTION 10 − ENGINE − CHAPTER 1 CHECKS, MEASUREMENTS AND REPAIRS − ROTATING COUNTERWEIGHT DYNAMIC BALANCER WARNING Handle all parts carefully. Do not put your hands or fingers between parts. Wear suitable safety clothing, safety goggles, gloves and footwear Clean all parts carefully before proceeding with the operations described below.
  • Page 117 25354 Cross−sectional view of engine lubrication oil pump models TD60D and TD80D Models 1. External drive gear. 2. Bushing. 3. Drive shaft and gear. 4. Driven shaft and gear.
  • Page 118 SECTION 10 − ENGINE − CHAPTER 1 OIL FILTER − Replacement CHECKS, MEASUREMENTS AND REPAIRS − COOLING SYSTEM The oil filter (3) figs. 7 and 8 is of the full−flow, integral Clean all parts carefully before proceeding with the paper cartridge type, and is installed in the pump operations described below.
  • Page 119 SECTION 10 − ENGINE − CHAPTER 1 COOLANT THERMOMETER − Testing If malfunction is suspected, immerse the bulb of the thermometer in water and check the readings against a test thermometer (repeat the test a number of times with different water temperatures to be sure).
  • Page 120 SECTION 10 − ENGINE − CHAPTER 1 RADIATOR Removal − Installation (Operation 10 406 10) DANGER Lift and handle all heavy parts using suitable lifting equipment. Make sure that assemblies or parts are supported by means of suitable slings and hooks. Check that no one is in the vicinity of the load to be lifted.
  • Page 121 SECTION 10 − ENGINE − CHAPTER 1 7. Disconnect electrical leads from air filter restric- tion sensor (1). TRE0620A 8. Remove the clamp (1) on the inlet manifold hose. 9. Remove the clamp (1) on the air filter hose. 25129 10.
  • Page 122 SECTION 10 − ENGINE − CHAPTER 1 11. Unscrew the clamp and disconnect the pipe (1) connecting the air filter to the exhaust aspirator. 25131 12. Unscrew the hose clamp (1) and remove the top radiator hose. TRE0619A 13. Unscrew the clamp and remove the pipe (1) from the radiator cap.
  • Page 123 SECTION 10 − ENGINE − CHAPTER 1 15. Remove the radiator (1) and the upper rubber mountings. To refit the radiator proceed as follows: — Replace the radiator and secure with the two bolts. 25135 — Refit the two rubber hoses to the coolant pump and the thermostat housing.
  • Page 124 SECTION 10 − ENGINE − CHAPTER 1 CRANKSHAFT FRONT OIL SEAL Removal/installation (Operation 10 102 70) DANGER Lift and handle all heavy parts using suitable lifting equipment. Make sure that assemblies or parts are supported by means of suitable slings and hooks. Check that no one is in the vicinity of the load to be lifted.
  • Page 125 SECTION 10 − ENGINE − CHAPTER 1 7. Disconnect electrical leads from air filter restric- tion sensor (1). TRE0620A 8. Remove the clamp (1) on the inlet manifold hose. 9. Remove the clamp (1) on the air filter hose. 25129 10.
  • Page 126 SECTION 10 − ENGINE − CHAPTER 1 11. Unscrew the clamp and disconnect the pipe (1) connecting the air filter to the exhaust aspirator. 25131 12. Unscrew the hose clamp remove the top radiator hose (1). TRE0619A 13. Unscrew the clamp and remove the pipe (1) from the radiator cap.
  • Page 127 SECTION 10 − ENGINE − CHAPTER 1 15. Remove the radiator (1) and the upper rubber mountings. 25135 16. Loosen the alternator pivot bolt. 25136 17. Loosen the belt tension adjuster bolt (1) and re- move the belt. 25137 18. Remove the radiator fan (1). 25138 603.54.471.00 −...
  • Page 128 SECTION 10 − ENGINE − CHAPTER 1 19. Unscrew the retaining bolts (1) and remove the crankshaft pulley. 25139 20. Straighten the tab on the lock washer, hold the crankshaft against rotation and unscrew nut (1). 25140 21. Remove the pulley hub from the crankshaft using tool 380000226 (1) and retrieve the wood- ruff key.
  • Page 129 SECTION 10 - - ENGINE - - CHAPTER 1 22. Remove the oil seal (1) from it seat. To install the front oil seal, proceed as follows: — Install the oil seal. — Refit the crankshaft hub and retaining nut; bend tab over on lock washer.
  • Page 130 SECTION 10 − ENGINE − CHAPTER 1 COOLANT PUMP Removal−Installation (Operation 10 402 10) WARNING Always use suitable tools to align holes in parts. NEVER USE YOUR FINGERS OR HANDS. 1. Remove the exhaust pipe and open the bonnet. 2. Disconnect the battery negative cable. 3.
  • Page 131 SECTION 10 − ENGINE − CHAPTER 1 7. Move the fan shroud towards the engine. 8. Unscrew the three bolts securing the fan to the coolant pump shaft. Remove the fan and the fan cowling. 25145 9. Loosen the alternator pivot bolt (2). 10.
  • Page 132 SECTION 10 − ENGINE − CHAPTER 1 13. Unscrew the belt tension adjustment arm retaining nut (1) and move the alternator outward. 25149 14. Remove pump connection pipe (1) to gain access to the coolant pump retaining bolt (2). 25150 15.
  • Page 133 SECTION 10 − ENGINE − CHAPTER 1 COOLING SYSTEM THERMOSTAT Removal−Installation (Operation 10 402 30) WARNING Always use suitable tools to align holes in parts. NEVER USE YOUR FINGERS OR HANDS. 1. Disconnect the battery negative cable. 2. Remove the exhaust pipe, attach lifting chains to the bonnet (1) and attach the chains to the hoist.
  • Page 134 SECTION 10 − ENGINE − CHAPTER 1 6. Drain the cooling system from the drain plug on the engine block. 24804 7. Remove the wire mesh guard (1) from the right− hand side of the radiator. 25028 8. Unscrew the hose clamp and disconnect the hose (1) connecting the radiator to the thermostat housing.
  • Page 135 SECTION 10 − ENGINE − CHAPTER 1 10. Lever the cover (1) off the housing using a screwdriver and remove the cover. 25157 11. Remove the thermostat valve (1). 25158 To refit the thermostat proceed as follows: — Fit the thermostat in its housing and locate the gasket.
  • Page 136 SECTION 10 − ENGINE − CHAPTER 1 Op. 10 246 14 BOSCH INJECTION PUMP Removal−Installation, timing and air bleeding CAUTION Handle all parts carefully. Do not put your hands or fingers between parts. Wear the prescribed safety clothing, including goggles, gloves and safety foot- wear.
  • Page 137 SECTION 10 − ENGINE − CHAPTER 1 7. Unscrew the unions of the fuel supply lines (1) from the injection pump, from the fuel return pipe (2) and from the pump fuel supply line (3). 8. Disconnect the L.D.A. device connecting pipe to the inlet manifold (only TD70D and TD95D models).
  • Page 138 SECTION 10 − ENGINE − CHAPTER 1 12. To refit the injection pump, proceed as follows. CAUTION Always use appropriate tools to align fixing holes. NEVER USE FINGERS OR HANDS. − Respect the tightening torques prescribed on page 24. − Check that cylinder no.
  • Page 139 SECTION 10 − ENGINE − CHAPTER 1 BOSCH INJECTION PUMP Timing 1. Using an external cable, supply 12 V to the ther- mometric circuit breaker cutting out starting ad- vance according to temperature (KSB) (1) attaching the positive terminal to the connection and earth to the pump housing.
  • Page 140 SECTION 10 − ENGINE − CHAPTER 1 6. Check through the inspection window that the pointer is aligned with reference marks 4_ for mod. TD60D, 0_ for mod. TD70D and TD95D, or 1_ for mod. TD80D and TD90D. 26107 7. With the injection pump in its seat, remove the plug (1) on the pump cover.
  • Page 141 SECTION 10 − ENGINE − CHAPTER 1 BOSCH INJECTION PUMP Air bleeding 1. Unscrew the plug (1) on the first filter. 25198 2. Operate the priming lever (1) fig. 253 on the fuel supply pump until the fuel coming out of the filter orifice is free of bubbles, then replace and tighten plug (1) fig.
  • Page 142 SECTION 10 − ENGINE − CHAPTER 1 FUEL INJECTORS Removal−Installation (Operation 10 218 30) WARNING Always use suitable tools to align holes in parts. NEVER USE YOUR FINGERS OR HANDS. 1. Disconnect the battery negative cable. 2. Attach lifting chains to the bonnet (1) and then attach the chains to the hoist.
  • Page 143 SECTION 10 − ENGINE − CHAPTER 1 6. Unscrew the fuel leak−off pipe union (1) on the injector. 25301 7. Unscrew the union (1) of the high−pressure fuel line on the injector. 25302 8. Unscrew the two retaining nuts (1) and withdraw the injector.
  • Page 144 SECTION 10 − ENGINE − CHAPTER 1 ADJUSTING VALVE CLEARANCE (Operation 10 106 12) WARNING Always use suitable tools to align holes in parts. NEVER USE YOUR FINGERS OR HANDS. 1. Disconnect the battery negative cable. 2. Attach lifting chains to the bonnet (1) and then at- tach them to the hoist.
  • Page 145 SECTION 10 − ENGINE − CHAPTER 1 6. Undo the hose clamp and detach the hose from the silencer ejector. 7. Unscrew the two screws securing the silencer front support. 8. Unscrew the retaining nuts securing the silencer to the exhaust manifold and remove the silencer. TRE0618A 9.
  • Page 146 SECTION 10 − ENGINE − CHAPTER 1 To adjust valve clearances on the 3−cylinder TD60D and TD70D engines, proceed as follows: — Turn the crankshaft so that the inlet and exhaust valves of cylinder no. 1 are balanced (start of induction stroke).
  • Page 147 SECTION 10 − ENGINE − CHAPTER 1 WATER PUMP − Overhaul (Operation 10 402 28) WARNING Use suitable tools for aligning holes. NEVER USE FINGERS OR HANDS. NOTE: The bearing (9) forms a single piece with the control shaft (10). It is a sealed unit and requires no lubrication during running.
  • Page 148 SECTION 10 − ENGINE − CHAPTER 1 ENGINE 5) Turn the engine over a few times with the starter motor in order to expel any carbon residue. Compression test (Operation 10 001 30) 6) Fit the dummy injector 380000617 in place of the In case of poor engine performance, in addition to injector removed previously, inserting the copper checking the fuel injection system (injector nozzles...
  • Page 149 Driven plate lining material for main transmission clutch (11”) ..Models TD60D and TD70D ....... . .
  • Page 150 PART Thread Thread ft lb Clutch/flywheel retaining bolts mod. TD60D, TD70D, TD80D and TD90D ....M 8 x 1.25 18.439 − M 10 x 1.25 43.5162...
  • Page 151 SECTION 18 − CLUTCH − CHAPTER 1 TOOLS List of specific tools required for the various operations described in this Section. 380000236 Tractor disassembly stand. 380000612 11”/11” clutch adjustment kit (pin and gauge). 380000292 Dowel for centring and adjust- ment of 12”/12” clutches. 380000293 12”/12 Clutch adjustment gauge.
  • Page 152 Nominal distance of lever (3) from clutch contact sur- Power take−off clutch release lever stop nut. face on flywheel (mod. TD60D, TD70D, TD80D and Power take−off clutch plate. TD90D, 11”/11” clutch 98 mm (3.8583 in.) − mod. TD95D 12”/12” clutch 103 mm (4.0551 in.)).
  • Page 153 SECTION 18 − CLUTCH − CHAPTER 1 CLUTCH TROUBLESHOOTING Problems Possible causes Correction Clutch slips 1. Worn clutch plates (8 and 9, Check and compare the data given on the pages indicated; replace any page 4) and/or worn pres- parts which are worn up to or over the sure plate and flywheel.
  • Page 154 SECTION 18 − CLUTCH − CHAPTER 1 CLUTCH Removal−Refitting (Operation 18 110 10) To access the clutch it is necessary to separate the engine complete with the front axle from the tran- smission. DANGER Lift and handle all heavy parts using suitable lifting equipment.
  • Page 155 SECTION 18 − CLUTCH − CHAPTER 1 6. To access the engine, the bonnet must be opened. TRE0159A 7. Remove the electrical connections (1). TRE185A 8. After draining off the oil from the power steering tank, disconnect the oil pipes (1) from the hydrostatic steering control valve unit.
  • Page 156 SECTION 18 − CLUTCH − CHAPTER 1 10. Detach the throttle control spring (1) and remove the throttle lever (2). TRE0411A 11. After recovering the air−conditioner gas (HRC _ 134a) with the recovery and recycl- ing station 294048, disconnect the pipes of the cab air conditioner (1).
  • Page 157 SECTION 18 − CLUTCH − CHAPTER 1 14. Disconnect the rubber connecting hose (1) of the hydraulic pump. TRE0184A 15. Disconnect the feed pump delivery line (1). TRE0183A 16. Disconnect the fuel line (1) from the glow plug. TRE0183A 17. Remove the front, centre and rear screws secur- ing the front axle prop shaft guard and remove the guard (1).
  • Page 158 SECTION 18 − CLUTCH − CHAPTER 1 18. Remove circlip (2) and move sleeve (1) in the direction shown by the arrow to disengage it from the splined shaft of the front axle. 25039 19. Remove circlip (2) and move sleeve (1) in the direction shown by the arrow to disengage it from the splined shaft of the drive.
  • Page 159 SECTION 18 − CLUTCH − CHAPTER 1 22. Unscrew the two nuts (1) and bolts securing the engine to the transmission, working through the two access slots. TRE0413A 23. Unscrew the four lower bolts (1) securing the en- gine to the transmission. 25049 24.
  • Page 160 28. Remove the spacer collar (1) between the en- gine and the transmission (Model TD95D). 25055 29. Using tool 380000612 (mod. TD60D, TD70D, TD80D and TD90D) or with tool 380000292 (mod. TD95D) (2), unscrew the retaining bolts (1) and remove the clutch.
  • Page 161 Refit the cab heater pipe union on the clutch/engine Position the clutch using tool 380000612 (mod. spacer collar. Connect the flexible rubber hoses to TD60D, TD70D, TD80D and TD90D) or with tool the union. 380000292 (mod. TD95D). Fix the clutch to the flywheel with the six bolts.
  • Page 162 SECTION 18 − CLUTCH − CHAPTER 1 OVERHAUL The clutch is removed, refitted and adjusted with the universal outfit 293650. Parts of the universal outfit 293650 Necessary to adjust the VALEO clutch. A. Plate 293332. B. Central spacer 293728. ∅ 35mm (1.3779 in.) for 11”/11” clutch 293729.
  • Page 163 2.2 mm (0.0886 in.) for 12”/12” clutches (mod. TD95D) no increase (already using gauge 293731) for 11”/11” clutches (mod. TD60D, TD70D, TD80D and TD90D) flywheel external lowering distance 2 mm (0.0784 in.) for 11”/11” clutches (mod. TD60D, TD70D, TD80D and TD90D) 0.5 mm (0.0197 in.) for 12”/12”...
  • Page 164 SECTION 18 − CLUTCH − CHAPTER 1 Remove the nuts (7; page 4) for the PTO clutch re- lease lever adjuster tie rods and gradually unscrew the studs (F, page 14) thereby making it possible to extend the Belleville spring and break down the clutch into its parts.
  • Page 165 S measurements of the PTO and main clutch plates: MMH1885B = 2 mm (0.0784 in.) for 11”/11” clutches mod. TD60D, TD70D, TD80D and TD90D = 0.5 mm (0.0197 in.) for 12”/12” clutch mod. TD95D Lowering on the flywheel; = 4.20 P 4.30 mm (0.1653 P 0.1693 in.) for 11”/11”...
  • Page 166 Once terminated, moreover, the external lowering will need to be restored to 2 mm (0.0784 in.) (see fig. 34). − 11”/11” dual clutch mod. TD60D, TD70D, TD80D, TD90D ≥12.50 mm (0.4921 in.) ≥20.00 mm (0.7874 in.) ≥18.00 mm (0.7087 in.) ≥12.50 mm (0.4921 in.) ≥2.50 mm (0.0984 in.)
  • Page 167 L. Handwheel 293739. = 0.1 mm (0.0039 in.) Clearance to obtain between the ends of the gauge pins (C) and release levers (1) for 11”/11” clutch (mod. TD60D, TD70D, TD80D, TD90D) or: = 0.1 mm (0.0039 in.) for 12”/12” clutch (mod. TD95D).
  • Page 168 (10, page 4) and press the relevant gauge against it 380000612 (T for 11”/11” clutch, mod. TD60D, TD70D, TD80D and TD90D) or 380000293 for 12”/12” clutch, mod. TD95D). Then proceed as follows: −...
  • Page 169 (1) and the PTO clutch release levers (2) of: 0.1 mm for 11”/11” clutch (0.0039 in.) mod. TD60D, TD70D, TD80D, TD90D 8.1 mm for 12”/12” clutch (0.3189 in.) mod. TD95D 25367...
  • Page 170 SECTION 18 − CLUTCH − CHAPTER 1 PTO CLUTCH LINKAGE ADJUSTMENT The only clutch adjustment required is to check and, if necessary, adjust the clutch pedal free travel. This is the amount of pedal movement from fully released position (B) to the point where resistance is first encountered. The clutch free travel (C, fig.
  • Page 171 SECTION 21 - - TRANSMISSIONS - - CHAPTER 1 SECTION 21 - - TRANSMISSIONS Chapter 1 - - Mechanical Transmission (12 x 4) CONTENTS Section Description Page 21 000 Main data ..............Tightening torques .
  • Page 172 SECTION 21 - - TRANSMISSIONS - - CHAPTER 1 TRANSMISSION AND RANGE GEAR MAIN DATA (continued) Diameter of power take off (PTO) clutch shaft (4, page 5) ..24.979 -- 25.000 (in.) (0.9834 -- 0.9843) Inside diameter of fitted bushing (1, page 5) .
  • Page 173 SECTION 21 - - TRANSMISSIONS - - CHAPTER 1 C 98 Nm C 59 Nm C 221 Nm C 221 Nm C 59 Nm C 245 Nm C 255Nm C 123 Nm C 98 Nm TRE0550A TOOLS List of special tools required for the various opera- tions described in this Section: Warning - - The operations described in this Section 380000236 Tractor dismantling trolley.
  • Page 174 SECTION 21 - - TRANSMISSIONS - - CHAPTER 1 Drift to be made for removal of gearbox driving shaft (tool to be stamped no. 50006 -- measurement in mm). Make in material UNI C40. 26215 Tool to be made for adjustment of gearbox driving shaft bearings (tool be stamped no.
  • Page 175 SECTION 21 - - TRANSMISSIONS - - CHAPTER 1 Longitudinal cutaway section through gearbox and range gear. 1. Power take--off (PTO) shaft support bushing. 11. Retaining half--rings. 2. Seal. 12. Driven gear for reverse speeds. 3. Gearbox driving shaft. 13. Driven gear for low speeds. 4.
  • Page 176 SECTION 21 - - TRANSMISSIONS - - CHAPTER 1 TRE0556A Sealing compound application diagram for mating surfaces between engine, clutch casing and rear transmission- -gearbox. The types of sealing compound to use are indicated on page 1, Sect. 00. 603.54.471.00 - - 11 - - 2004...
  • Page 177 SECTION 21 - - TRANSMISSIONS - - CHAPTER 1 TRE0557A Cross- -section through gearbox and range gear 1. Range gear control relay rod. 14. Circlip. 2. Gearbox control relay rod. 15. Upper cover of transmission / gearbox. 3. Low and high speeds selector rod. 16.
  • Page 178 SECTION 21 - - TRANSMISSIONS - - CHAPTER 1 DESCRIPTION AND OPERATION 4--speed gearbox with constant--mesh helical gears The range gear provides 3 forward ranges and 1 re- controlled by two synchronisers. verse range. The range gear has cascade--type constant--mesh The gearbox and the range gears are controlled by spur gears, excluding reverse.
  • Page 179 SECTION 21 - - TRANSMISSIONS - - CHAPTER 2 SECTION 21 - - TRANSMISSIONS Chapter 2 - - Reverser CONTENTS Section Description Page 21 000 Main data ..............Tightening torques .
  • Page 180 SECTION 21 - - TRANSMISSIONS - - CHAPTER 2 TORQUE VALUES Torque Settings PARTS PARTS Thread Thread ft lb Bolt or nut securing clutch / reverser casing to engine (C ) ..M 12 x 1.25 72.2811 Sleeve cover retaining nuts (C ) .
  • Page 181 SECTION 21 - - TRANSMISSIONS - - CHAPTER 2 TOOLS List of special tools required for the various opera- tions described in this Section : Warning - - The operations described in this Section 380000236 Tractor dismantling trolley. can only be carried out using the ESSENTIAL tools marked with an (X).
  • Page 182 SECTION 21 - - TRANSMISSIONS - - CHAPTER 2 TRE0560A Synchroniser reverser sectional views 1. Synchroniser reverser selector fork. 12. Stop plate for journals (11 and 13). 2. Reverser synchroniser. 13. Synchroniser reverser driven gear. 3. External reverser control lever. 14.
  • Page 183 SECTION 21 - - TRANSMISSIONS - - CHAPTER 2 DESCRIPTION AND OPERATION The synchroniser reverser is a mechanical device fected by means of a synchroniser located in the which makes it possible to obtain 12 forward and 12 group of gears. reverse gears.
  • Page 184 SECTION 21 - - TRANSMISSIONS - - CHAPTER 2 CLUTCH/REVERSER CASING Replacement (Op. 21 110 85) WARNING Handle all parts with great care. Never insert fingers or hands between one piece and another. Wear suitable safety clothing, i.e., safety goggles, gloves and shoes. 1.
  • Page 185 SECTION 21 - - TRANSMISSIONS - - CHAPTER 2 4. Remove the circlip (1) and take out : bearing, thrust washers, synchroniser assembly together with the selector fork and its rod, the reverser driven gear (2) complete with roller bearings and spacer.
  • Page 186 SECTION 21 - - TRANSMISSIONS - - CHAPTER 2 8. Detach the retaining springs and withdraw the sliding sleeves (1). 24999 9. Unscrew the retaining bolts and remove the sleeve cover / support (1). 25000 10. Unscrew the two securing bolts (1) of the sliding sleeve control forks (2).
  • Page 187 SECTION 21 - - TRANSMISSIONS - - CHAPTER 2 12. Relieve the staking and unscrew bolt (1) secur- ing the stop plate for the journal of the reverser driven shaft (2) and the intermediate gear jour- nal, removing the latter from the rear of the cas- ing.
  • Page 188 SECTION 21 - - TRANSMISSIONS - - CHAPTER 2 603.54.471.00 - - 11 - - 2004...
  • Page 189 SECTION 21 - - TRANSMISSIONS - - CHAPTER 3 SECTION 21 - - TRANSMISSIONS Chapter 3 - - Reverser and creeper unit (20x12) CONTENTS Section Description Page 21 000 Main data ..............Tightening torques .
  • Page 190 SECTION 21 - - TRANSMISSIONS - - CHAPTER 3 TORQUE VALUES Torque Settings PARTS PARTS Thread Thread ft lb Bolt or nut securing clutch casing -- reverser and creeper unit to the engine (C ) ..........M 12 x 1.25 72.2811 Sleeve cover nuts (C...
  • Page 191 SECTION 21 - - TRANSMISSIONS - - CHAPTER 3 TOOLS List of special tools required for the various opera- tions in this Section : Warning - - The operations described in this Section 380000236 Tractor dismantling stand. can only be carried out using the ESSENTIAL tools 380000227 Clutch casing lifting hook.
  • Page 192 SECTION 21 - - TRANSMISSIONS - - CHAPTER 3 TRE0562A Longitudinal section through reverser- -creeper unit 1. Reverser and creeper unit control shaft. 6. Gearbox driving shaft control gear. 2. Seal. 7. Creeper unit driven gear. 3. Circlip. 8. Thrust washer. 4.
  • Page 193 SECTION 21 - - TRANSMISSIONS - - CHAPTER 3 TRE0563A Cross sectional views of synchroniser reverser - - creeper unit 1. Reverser control fork. 12. Roller bearing. 2. Detent ball. 13. Journal for gear (11). 3. Reverser synchroniser. 14. Seal. 4.
  • Page 194 SECTION 21 - - TRANSMISSIONS - - CHAPTER 3 DESCRIPTION AND OPERATION The reverser--creeper unit is a mechanical device The reverser comprises three spur gears : the re- providing the possibility to obtain 20 forward speeds verser driving gear, an intermediate gear and the re- and 12 reverse speeds.
  • Page 195 SECTION 21 - - TRANSMISSIONS - - CHAPTER 3 CLUTCH CASING SYNCHRONISER REVERSER AND CREEPER UNIT Replacement (Op. 21 110 87) WARNING Handle all parts with great care. Never place your hands between one part and anoth- er. Wear suitable safety clothing, i.e. safety goggles, gloves and shoes.
  • Page 196 SECTION 21 - - TRANSMISSIONS - - CHAPTER 3 4. Remove plug and remove the control lever re- taining pin (1). 26199 5. Remove the reverser synchroniser assembly (1) together with control forks and gears. 26200 6. Withdraw the driven shaft gear (1) together with the roller bearings and remove the thrust wash- 26201 7.
  • Page 197 SECTION 21 - - TRANSMISSIONS - - CHAPTER 3 8. Unscrew the retaining screws (2) and remove the control forks (1). 26203 9. Unscrew the retaining screw (15, page 5) and withdraw the reverser intermediate gear assem- bly (1). 26204 10.
  • Page 198 SECTION 21 - - TRANSMISSIONS - - CHAPTER 3 12. Unscrew the retaining bolts and remove the cov- er--support (1). 26206 13. Remove the circlip (2) and withdraw the drive-- shaft (1) complete with bearing. 26207 14. Remove the circlip (1). 26208 15.
  • Page 199 SECTION 21 - - TRANSMISSIONS - - CHAPTER 3 16. To refit all the reverser and creeper components in the casing follow the instructions below : — Refer to the illustrations on pages 4 and 5 for the orientation of the various components. —...
  • Page 200 SECTION 21 - - TRANSMISSIONS - - CHAPTER 3 Note -- Leave the drift (1) with the nut in the position reached on completion of the installation operation, and on future seal installation operations simply check that the distance (H, fig. 20) is as prescribed. 21.
  • Page 201 SECTION 23 - - DRIVE LINES - - CHAPTER 1 SECTION 23 - - DRIVE LINES Chapter 1 - - Drive Lines CONTENTS Section Description Page 23 000 Main specification ............. Torque settings and Tools .
  • Page 202 SECTION 23 - - DRIVE LINES - - CHAPTER 1 TORQUE SETTINGS TRE0401A TRE0400A Torque setting PART TO BE TORQUED PART TO BE TORQUED Thread Thread ft lb Transmission shaft central support retaining bolt (C ) ..M 12 x 1.5 72.2811 Drive gear housing retaining bolt (C...
  • Page 203 SECTION 23 - - DRIVE LINES - - CHAPTER 1 TRE0402A TRE0403A Cross- -section of a drive transmission = Drive shaft centre bearing capscrew 11. Guide screws = Axle drive housing capscrew 22. Dentent plunger X = On assembly,thoroughly clean and degrease 25.
  • Page 204 SECTION 23 - - DRIVE LINES - - CHAPTER 1 Op. 23 101 26 TRANSMISSION SHAFTS AND GUARD Disassembly - - Assembly WARNING Handle all parts with great care. Do not place hands or fingers between one part and another. Always wear the prescribed safety clothing, including protective glasses, gloves and shoes.
  • Page 205 SECTION 23 - - DRIVE LINES - - CHAPTER 1 Op. 23 101 40 DRIVE GEAR HOUSING ASSEMBLY Removal- - Installation WARNING Handle all parts with great care. Do not place hands or fingers between one part and another. Always wear the prescribed safety clothing, including protective glasses, gloves and shoes.
  • Page 206 SECTION 23 - - DRIVE LINES - - CHAPTER 1 4. Remove the screws (1) that hold the drive gear housing (transfer box) to the transmission hous- ing. 5. Remove the drive gear housing from the trans- mission housing. TRE0406A 6.
  • Page 207 SECTION 23 - - DRIVE LINES - - CHAPTER 1 TRANSFER BOX, UNIT REMOVED Disassembly - - Assembly (Op. 23 101 42) WARNING Handle all parts with great care. Do not place hands or fingers between one part and another. Always wear the prescribed safety clothing, including protective glasses, gloves and shoes.
  • Page 208 SECTION 23 - - DRIVE LINES - - CHAPTER 1 7. To refit the transfer box, proceed as follows: WARNING Use suitable tools to align holes. NEVER USE FIN- TRE0119A GERS OR HANDS. Insert the shaft in the housing, then assemble the gear unit, washer and circlip.
  • Page 209 Type ........... . steering, load bearing structure, pivoting at centre Bevel gear pair − differential Pinion−crown gear ratio: 30 km/h: − TD60D and TD70D Models 9/38 = 1:4.2 − TD80D, TD90D and TD95D Models 9/39 = 1:4.3 Pinion−crown gear ratio: 40 km/h: −...
  • Page 210 − Diameter of cross pin for planet pinions TD60D and TD70D Models ..... . mm (in.) 21.939 − 21.960 (0.8637 − 0.8646) TD80D, TD90D and TD95D Models .
  • Page 211 − Diameter of outer axle shafts and corresponding bushes TD60D and TD70D Models ..... . mm (in.) 29.914 − 29.935 (1.1777 − 1.1785) TD80D, TD90D and TD95D Models .
  • Page 212 Lock ring, bevel pinion (C TD60D and TD70D Models ....... .
  • Page 213 SECTION 25 − FRONT AXLE MECHANICAL TRANSMISSION − CHAPTER 1 − 113 Nm − 64 Nm (**) 26125 − 64 Nm − 113 Nm − 294 Nm 26124 − 314 Nm − 314 Nm 26126 − 113 Nm − 314 Nm −...
  • Page 214 380000251 Front axle overhaul stand. X 380000248 Bevel pinion positioning adjustment tool 380000227 Hook for removal−installation of the X 380000532 Pinion ring nut wrench mod. TD60D front differential assembly. and TD70D 380000255 Overhaul support for front axle diffe- X 380000268 Pinion ring nut wrench mod. TD80D, rential casing.
  • Page 215 SECTION 25 − FRONT AXLE MECHANICAL TRANSMISSION − CHAPTER 1 TRE0414A Cross−sectional view of front axle differential = Bevel pinion bearing shim 1. Bevel pinion = Bevel pinion position shim 2. Seal 3. Bevel pinion bearing spacer 4. Ring gear = Bevel pinion bearing lockring.
  • Page 216 SECTION 25 − FRONT AXLE MECHANICAL TRANSMISSION − CHAPTER 1 Cross−sectional view of front axle steering knuckle and hub 603.54.471.00 − 11 − 2004...
  • Page 217 SECTION 25 − FRONT AXLE MECHANICAL TRANSMISSION − CHAPTER 1 = King pin bearing shim 10. Seal 11. King pin bearing = King pin bearing capscrew. 12. Seal = Steering knuckle capscrew. 13. Seal = Wheel hub bearing lockring 14. Axsule shaft bushing = Final drive housing capscrew.
  • Page 218 SECTION 25 − FRONT AXLE MECHANICAL TRANSMISSION − CHAPTER 1 DESCRIPTION AND OPERATION TD60D, TD70D, TD80D, TD90D and TD95D models The differential has two planet pinions; drive is have a centrally pivoting front axle with the pivot and transmitted to lateral epicyclic final drive units...
  • Page 219 SECTION 25 − FRONT AXLE MECHANICAL TRANSMISSION − CHAPTER 1 3. Attach nylon slings to the front weights (1). Loosen the locking screw from each weight, lift the weights clear of the tractor and place them in a safe position. TRE0159A 4.
  • Page 220 SECTION 25 − FRONT AXLE MECHANICAL TRANSMISSION − CHAPTER 1 7. Lift the tractor with the hoist and place a stand under the sump pan. TRE0417A 8. Unscrew unions (1) of the rigid pipes to the power steering cylinders and detach the two flexible hoses TRE0176A 9.
  • Page 221 SECTION 25 − FRONT AXLE MECHANICAL TRANSMISSION − CHAPTER 1 11. Unscrew the front axle front support retaining bolts (1). 25586 12. Using a hoist and two nylon cables (one for each side) detach the front axle from the tractor. 13.
  • Page 222 SECTION 25 − FRONT AXLE MECHANICAL TRANSMISSION − CHAPTER 1 FRONT AXLE Removal−Installation (Op 25 100 38 ) TD60D and TD70D Models WARNING Handle all parts with care. Do not insert hands or fingers between one part and another. Wear suitable safety clothing, i.e. safety goggles, gloves and shoes.
  • Page 223 SECTION 25 − FRONT AXLE MECHANICAL TRANSMISSION − CHAPTER 1 TD80D, TD90D and TD95D Models WARNING Handle all parts with care. Do not insert hands or fingers between one part and another. Wear suitable safety clothing, i.e. safety goggles, gloves and shoes. NOTE: For overhaul, the front axle should be moun- ted on stand No.
  • Page 224 SECTION 25 − FRONT AXLE MECHANICAL TRANSMISSION − CHAPTER 1 4. Unscrew the two track rod retaining bolts (1). 25591 5. Using a suitable puller, withdraw the pins from their bores in the stub axle housing and remove the track rod. 24080 6.
  • Page 225 SECTION 25 − FRONT AXLE MECHANICAL TRANSMISSION − CHAPTER 1 8. Remove the circlip (1) securing the sun gear (2) and remove the gear. 25595 9. Remove the inner circlip (1) from the stub axle shaft. 25596 10. Remove the staking (1) on the wheel hub bearing lock ring (2).
  • Page 226 SECTION 25 − FRONT AXLE MECHANICAL TRANSMISSION − CHAPTER 1 12. Remove the wheel hub (1) with the ring gear (2). Retrieve all disassembled parts. 25599 13. Unscrew the three retaining bolts (1) of the lower pin of the stub axle housing. Recover the lower pivot pin and the related adjustment shims.
  • Page 227 SECTION 25 − FRONT AXLE MECHANICAL TRANSMISSION − CHAPTER 1 16. Unscrew the axle shaft retaining bolt and remove the axle shaft. 25604 17. Remove bracket (1), unscrew the union (3) and detach the front brake pipe (2). 25605 18. Unscrew two of the bolts fixing the bevel drive−differential support to the axle casing.
  • Page 228 SECTION 25 − FRONT AXLE MECHANICAL TRANSMISSION − CHAPTER 1 21. Remove the front brake bolts (1). TRE0231A 22. Remove the front brake housing (1). TRE0422A 23. Remove the front brake hub gear (1). TRE0233A 25609 24. Remove the friction discs (1)and metal discs (2). TRE0234A 603.54.471.00 −...
  • Page 229 SECTION 25 − FRONT AXLE MECHANICAL TRANSMISSION − CHAPTER 1 25. Remove front brake piston (1) and O−rings. TRE0235A 26. Unscrew the two bolts (2) of the crown wheel−dif- ferential support caps (1). TRE0232A 27. Remove the crown wheel−differential assembly (2) from the housing (1).
  • Page 230 SECTION 25 − FRONT AXLE MECHANICAL TRANSMISSION − CHAPTER 1 29. Straighten the locking tab on the splined shaft- lock nut (1). 25615 30. Unscrew the nut using wren8ch 380000268 (1) while preventing rotation of the bevel drive pinion shaft using wrench 380000257. 25616 31.
  • Page 231 SECTION 25 − FRONT AXLE MECHANICAL TRANSMISSION − CHAPTER 1 33. Using a screwdriver, detach and recover the dust seal, the oil seal (1) and the rear bearing. 25619 Reassemble the front axle adhering to the follow- ing instructions: − Refer to the illustrations on pages 7, 8 and −...
  • Page 232 SECTION 25 − FRONT AXLE MECHANICAL TRANSMISSION − CHAPTER 1 STEERING KNUCKLE PINS AND BEARINGS Replacement (Op. 25 108 46 or 25 108 47) WARNING Handle all parts with great care. Do not put your fingers or hands between one piece and another.
  • Page 233 4. Using a torque wrench and tool 380000235 (1), check that the torque required to rotate the casing (ignoring the initial torque) is as follows: models TD60D and TD70D 2.9 Nm (2.1389 ft lb) (with torque increment of 0.98 Nm − 0.7228 ft lb) TD80D, TD90D and TD95D 15 −...
  • Page 234 6. Calculate the average of the three values measured. The total thickness of the adjustment shims (page 8) to be fitted under the lower cover is to be calculated as follows: TD60D and TD70D TD80D, TD90D and TD95D S = H − 0.20 mm (0.0079 in.) If necessary, round up the value to the next 0.05 mm (0.0020 in.).
  • Page 235 SECTION 25 − FRONT AXLE MECHANICAL TRANSMISSION − CHAPTER 1 WHEEL HUB BEARING ADJUSTMENT: First class axle mod. TD60D and TD70D Proceed as follows: − Install wheel hub and fixed gear unit onto the steering knuckle; − Using a torque wrench and lock ring wrench...
  • Page 236 SECTION 25 − FRONT AXLE MECHANICAL TRANSMISSION − CHAPTER 1 Second class axle mod. TD80D, TD90D and TD95D Proceed as follows: − Progressively tighten the ring nut, using the torque wrench and wrench 380000269 (1) to ob- tain a torque value of 392 Nm (289.12432 ft lb); at the same time, rotate the wheel hub to ensure that the bearings are correctly seated.
  • Page 237 Proceed as follows. 1. Install the bevel pinion bearing cones (7) and (9) with spacer (8) on tool 293438 (E). NOTE: For TD60D and TD70D models, place the spacer M outside the bearings. 2. Fully tighten tool nut (M). 3. Measure the distance (H1) between the end of the pin on the bottom of the tool and the top surface of the tool.
  • Page 238 = Nominal distance between crown wheel centreline and pinion big end − 100 mm for TD60D, TD70D models. − 15 mm for TD80D, TD90D, TD95D models. C = a correction value stamped on the pinion preceded by a + or − sign (if other than 0). This...
  • Page 239 SECTION 25 − FRONT AXLE MECHANICAL TRANSMISSION − CHAPTER 1 Examples (models TD60D and TD70D) Example 1: − Distance measured using micrometer H = 103.3 mm (4.0669 in.). − Nominal distance between crown wheel axis and large diameter base of pinion H = 100 mm (3.9370 in.).
  • Page 240 380000257 (2) check that the pinion rolling torque, with the oil seal and relative dust seal, is − 0.50 Nm (0.3688 ft lb) for mod. TD60D and TD70D or − 0.75 Nm (0.5532 ft lb) for mod. TD80D, TD90D and TD95D.
  • Page 241 (G page 7). 24591 10. Using wrench (1) 380000252, for TD60D or TD70D models, or wrench 380000253, for TD80D, TD90D or TD95D models, check that the torque is 39 to 59 Nm (28.7649 to 43.5162 ft lb) to establish the specified axial pre−load.
  • Page 242 0.15 ÷ 0.20 mm (0.0059 to 0.0079 in.). 16. Using wrench 380000252, for TD60D or TD70D models, or wrench 380000253, for TD80D, TD90D or TD95D models, turn the adjuster ring nut and, using torque wrench 380001633 fitted on wrench 380000257 (1, fig.
  • Page 243 SECTION 25 − FRONT AXLE MECHANICAL TRANSMISSION − CHAPTER 1 20. Attach the differential bevel drive carrier to the axle casing after having carefully cleaned and degreased the mating surfaces and apply sealing compound (approx. 2 mm) along the marked line shown in the drawing below. Sealing compound application diagram for assembly of bevel drive unit and epicyclic final drive unit.
  • Page 244 SECTION 25 − FRONT AXLE MECHANICAL TRANSMISSION − CHAPTER 1 FRONT AXLE DIFFERENTIAL Overhaul (Op. 25 102 24 ) When overhauling the differential assembly it is nec- essary to adjust the backlash between the teeth of the planet pinions and the side gears. Proceed as follows: 1.
  • Page 245 SECTION 25 - - FRONT AXLE MECHANICAL TRANSMISSION - - CHAPTER 1 LIMITED- -SLIP, SELF- -LOCKING DIFFEREN- TIAL LOCK Operation The differential with Iimited slip Iocking (LlM-- SLlP) is of the two planet gear--type. It is provided with two multi--disc clutch assemblies fitted be- tween the side gears and the differential casing.
  • Page 246 SECTION 25 − FRONT AXLE MECHANICAL TRANSMISSION − CHAPTER 1 Disassemble the LlM−SLlP self−locking differen- tial Iock as follows: 7. Remove the retaining bolts (1) from the differential half−casing. 8. Open the differential casing (6). 9. Remove the half−casing (7) the differential pin (4), complete with the planet gears (3), the thrust washers (2) and the pins (9).
  • Page 247 SECTION 25 − FRONT AXLE MECHANICAL TRANSMISSION − CHAPTER 1 NO SPIN DIFFERENTIAL (optional) Section through differential with NO−SPIN unit Case capscrew, tightening torque 56 to 62 Nm (41.3034 to 45.7288 ft lb) 1 − Case, flange half 8 − Retaining ring 2 −...
  • Page 248 SECTION 25 − FRONT AXLE MECHANICAL TRANSMISSION − CHAPTER 1 NOTE: Check NO SPIN differential unit operation as When the tractor is in a straight forward or reverse follows: mode of operation, the NO SPIN allows equal speed to be distributed to both wheels. −...
  • Page 249 SECTION 25 − FRONT AXLE MECHANICAL TRANSMISSION − CHAPTER 1 FRONT AXLE DIFFERENTIAL WITH NO SPIN OP. 25 102 26 Overhaul WARNING Handle all parts with carefully. Do not put your hands or fingers between parts.Wear suitable safety clo- thing, safety goggles, gloves and footwear. 1.
  • Page 250 SECTION 25 − FRONT AXLE MECHANICAL TRANSMISSION − CHAPTER 1 CHECKING THE ALIGNMENT OF STEERING DRIVE WHEELS (Op 44 511 80 ) When travelling forward in a straight path, the wheels of four−wheel drive tractors must be parallel to the longitudinal axis of the tractor, alternatively a slight toe−in of the front wheels is permissible up to a maxi- mum of 6 mm (0.2362 in.) as measured at the edges...
  • Page 251 27 000 - - MAIN SPECIFICATION - - TORQUE SETTINGS - - SPECIAL TOOLS - - SECTIONAL VIEWS - - DESCRIPTION AND OPERATION - - FAULT FINDING MAIN SPECIFICATION OF BEVEL GEAR PAIR AND DIFFERENTIAL TD60D - - TD70D TD80D - - TD90D - - TD95D Bevel gear pair gear ratio .
  • Page 252 MAIN SPECIFICATION OF BEVEL GEAR PAIR AND DIFFERENTIAL (cont.) TD60D - - TD70D TD80D - - TD90D - - TD95D Bevel pinion positioning adjustment ..... .
  • Page 253 SECTION 27 - - REAR AXLE AND TRANSMISSION - - CHAPTER 1 TORQUE SETTINGS - - Refer to fig. 1 on page 4 Torque settings PART TO BE TIGHTENED PART TO BE TIGHTENED Thread Thread ft lb Retaining bolts for rear transmission/gearbox upper cover (C ) .
  • Page 254 SECTION 27 - - REAR AXLE AND TRANSMISSION - - CHAPTER 1 SECTIONAL VIEWS C 98 Nm C 59 Nm C 221 Nm C 221 Nm C 59 Nm C 245 Nm C 255Nm C 123 Nm C 98 Nm TRE0550A 603.54.471.00 - - 11 - - 2004...
  • Page 255 SECTION 27 - - REAR AXLE AND TRANSMISSION - - CHAPTER 1 SPECIAL TOOLS 380000277 Hook for lifting clutch box. 380000301 Rotating stand for overhaul. IMPORTANT: The operations described in this Sec- 380000271 Rear mounting (with 380000301). tion must be performed only with the ESSENTIAL 380000272 Front mounting (with 380000301).
  • Page 256 SECTION 27 - - REAR AXLE AND TRANSMISSION - - CHAPTER 1 Tool to make for adjusting the bevel drive (engrave number 50027 on the tool -- measurements in mm) Make in Fe 42 C material. 26259 Tool to make for adjusting the assembly position of the bevel pinion shaft (Mark tool with no.
  • Page 257 SECTION 27 - - REAR AXLE AND TRANSMISSION - - CHAPTER 1 TRE0551A Sectional drawings of transmission- -gearbox case 1. Mid--range and reverse gear control rod. 14. Plug. 2. Slow and fast gear control rod. 15. Reverse gear support pin. 3.
  • Page 258 SECTION 27 - - REAR AXLE AND TRANSMISSION - - CHAPTER 1 TRE0554A Longitudinal and cross sectional views of bevel drive and differential TD60D and TD70D models 13. Shim ring. TD80D, TD90D and TD95D models 14. Differential casing. Longitudinal section of range gear and bevel drive 15.
  • Page 259 SECTION 27 - - REAR AXLE AND TRANSMISSION - - CHAPTER 1 14 7 14 7 TRE0552A a. TD60D and TD70D models 6. Roller bearing b. TD80D, TD90D and TD95D models 7. Ball bearing . Gearbox to final drive box retaining bolts 8.
  • Page 260 SECTION 27 - - REAR AXLE AND TRANSMISSION - - CHAPTER 1 DESCRIPTION AND OPERATION The rear transmission transmits power from the The differential has two pinions and is equipped with gearbox to the lateral final drives by means of the a mechanically controlled differential lock.
  • Page 261 SECTION 27 - - REAR AXLE AND TRANSMISSION - - CHAPTER 1 REAR TRANSMISSION - - GEARBOX CASE Removal- -Refitting (Op. 21 118 10 - - 21 118 12) Related service instructions up to item 44 -- see pages from 11 to 21. Also describes removal operations of suspended cab/platform (Op.
  • Page 262 SECTION 27 - - REAR AXLE AND TRANSMISSION - - CHAPTER 1 4. Place another moveable stand 380000236 un- der the front weight carrier to prevent any possibility of the engine tipping forwards when the gearbox is removed. Put wooden blocks (1) between the stands and the tractor body.
  • Page 263 SECTION 27 - - REAR AXLE AND TRANSMISSION - - CHAPTER 1 8. After retrieving the oil from the power steering tank, disconnect the hoses (1) from the power steering pump. (Mark the hoses, before removal, to facilitate refitting in the correct position). TRE0160A 9.
  • Page 264 SECTION 27 - - REAR AXLE AND TRANSMISSION - - CHAPTER 1 12. Loosen the clamps (1) and remove the cab heater outlet pipes (2). (Mark the hoses, before removal, to facilitate refitting in the correct position). TRE0240E 13. Remove the wing nut (1) securing the condenser (2).
  • Page 265 SECTION 27 - - REAR AXLE AND TRANSMISSION - - CHAPTER 1 16. Remove the rubber floor mat from the cab/-- platform, then remove the surrounding bolts (1) securing engine--clutch assembly to the gear- box--rear transmission case. TRE0199A 17. Place a hydraulic jack (1) underneath the centre of the fuel tank (2) and lift it, as necessary.
  • Page 266 SECTION 27 - - REAR AXLE AND TRANSMISSION - - CHAPTER 1 20. Remove the bolts (1) and (2) from steel support bracket beneath the fuel tank. TRE0206A 21. Remove the securing screws and remove the sheet metal protector (1) from beneath the fuel tank.
  • Page 267 SECTION 27 - - REAR AXLE AND TRANSMISSION - - CHAPTER 1 24. Remove the bolts (1) and remove the clutch pedal assembly from the upper surface of the cab/platform. TRE0222A 25. Remove the securing nuts (1) from the brake pedal retaining bolts.
  • Page 268 SECTION 27 - - REAR AXLE AND TRANSMISSION - - CHAPTER 1 28. Remove the split pins (1) and disconnect the PTO engagement lever. TRE0198A 29. Remove the retaining pin (1) from the 4WD engagement lever and remove the lever. TRE0212A 30.
  • Page 269 SECTION 27 - - REAR AXLE AND TRANSMISSION - - CHAPTER 1 32. Unscrew the retaining bolts (1) and remove the main and range gear selector levers. TRE0179A 33. Remove the indicator and light connectors (1) from both sides of tractor. TRE0192A 34.
  • Page 270 SECTION 27 - - REAR AXLE AND TRANSMISSION - - CHAPTER 1 36. Disconnect the auxiliary valve nuts (1) from their pipes. TRE0200A 37. Remove the split pins (1) and respective draft and position control levers. TRE0505A 38. Remove the Lift--o--matic control cable (1) from the lever and from its mounting (2).
  • Page 271 SECTION 27 - - REAR AXLE AND TRANSMISSION - - CHAPTER 1 40. Remove the bolt (1) that secures the gearbox breather pipe clamp. TRE0126A 41. Remove the bolt (1) that secures each side of the front supports to the cab/platform. TRE0506A 42.
  • Page 272 SECTION 27 - - REAR AXLE AND TRANSMISSION - - CHAPTER 1 44. Attach two hooks to the signal support bar at the front and clamp the lifting tool to the roll--bar at the rear. TRE0190A 45. Remove the front retaining bolts (1), the centre bolts (2) and the rear retaining bolts from the 4WD drive shaft guard.
  • Page 273 SECTION 27 - - REAR AXLE AND TRANSMISSION - - CHAPTER 1 48. Unscrew the drive shaft centre support bolts (1) and remove the shaft complete with support. 25041 49. Disconnect the trailer brake pump inlet pipes (1) and (2) from the transmission--gearbox case. Remove the coupling from the trailer brake control valve supply pipe (3).
  • Page 274 SECTION 27 - - REAR AXLE AND TRANSMISSION - - CHAPTER 1 52. Remove the union (1) and drain the front brake fluid. TRE0203A 53. Remove the feed pipes (2) from the brake fluid reservoir (1). TRE0218A 54. Connect a chain to one of the final drive assemblies and remove it from the transmis- sion--gearbox case.
  • Page 275 SECTION 27 - - REAR AXLE AND TRANSMISSION - - CHAPTER 1 56. Use a chain to attach the tow hook and PTO to the hoist. Remove the three retaining bolts (1) from both sides and remove the unit from the rear transmission--gearbox case.
  • Page 276 SECTION 27 - - REAR AXLE AND TRANSMISSION - - CHAPTER 1 60. Unscrew the bolt (1) and remove the internal oil tank (2) from the rear transmission case. 25774 61. Connect the rear transmission--gearbox case to the hoist by chain. Remove the rear transmis- sion--gearbox case using...
  • Page 277 SECTION 27 - - REAR AXLE AND TRANSMISSION - - CHAPTER 1 603.54.471.00 - - 11 - - 2004...
  • Page 278 SECTION 27 − REAR AXLE AND TRANSMISSION − CHAPTER 1 62. Refit the rear transmission−gearbox case as — Fit the rear wheels and remove stand follows: 380000326. — Fit the 4WD drive shaft and secure it by means of the central support and, the front and rear WARNING sliding sleeves.
  • Page 279 SECTION 27 - - REAR AXLE AND TRANSMISSION - - CHAPTER 1 TRANSMISSION- -GEARBOX CASE Removal- -Refitting (Op. 21 118 85) WARNING Handle all parts with great care. Never place your hands or fingers between one part and another. Wear the prescribed safety clothing, in- cluding glasses, gloves and protective footwear.
  • Page 280 SECTION 27 − REAR AXLE AND TRANSMISSION − CHAPTER 1 5. Unscrew the lock rings of the differential support bearing pre−load ring nuts (2) and slightly slacken the ring nuts. 6. Unscrew the differential support retaining bolts (1), retrieve the supports and then remove the entire differential bevel crown wheel assembly from the rear of the casing.
  • Page 281 SECTION 27 − REAR AXLE AND TRANSMISSION − CHAPTER 1 10. Remove from the rear the snap ring (1) that retains the final drive driving shaft bearing. 25793 11. Using a hammer and a brass punch (1) withdraw the gear (2) for the mid−range speeds together with the related bearings and engagement sleeve (3).
  • Page 282 SECTION 27 − REAR AXLE AND TRANSMISSION − CHAPTER 1 14. Fit the tool 50006 (2) (see page 4, Section 21, Chapter 1) onto the driving shaft and use the extractor (1) to withdraw the driving shaft. Remove the bearings, gears and respective bushings.
  • Page 283 SECTION 27 − REAR AXLE AND TRANSMISSION − CHAPTER 1 18. Move the gear (1) in the direction shown by the arrow and remove the two retaining half−rings (2). Undo the nut (3) completely and withdraw the bevel pinion, removing all parts. 25902 19.
  • Page 284 SECTION 27 − REAR AXLE AND TRANSMISSION − CHAPTER 1 WARNING Use appropriate tools to align the holes. NEVER USE YOUR FINGERS OR HANDS. 23. Position the box vertically, insert the gearbox driven shaft gear set (2) and insert the shaft (1). 25907 24.
  • Page 285 SECTION 27 − REAR AXLE AND TRANSMISSION − CHAPTER 1 26. Insert the gear shift forks (1) and (3) on the sliding rings (2) and (4) of the synchronisers. 27. Fit the bevel pinion complete with all the parts and carry out the adjustments given on pages 39 to 41.
  • Page 286 SECTION 27 − REAR AXLE AND TRANSMISSION − CHAPTER 1 30. Fit the lever (1) that controls the PTO synchro- nised with the gearbox, complete with spring, pawl and external lever. 31. Fit the ring bevel gear complete with support and adjuster shims (see adjustments on pages 39 to 32.
  • Page 287 SECTION 27 − REAR AXLE AND TRANSMISSION − CHAPTER 1 TRANSMISSION−GEARBOX CASE Adjusting gearbox driving shaft axial clearance WARNING Use appropriate tools to align the holes. NEVER USE YOUR FINGERS OR HANDS. Proceed as follows : NOTE: Once fitted, the driving shaft gears must have an axial clearance of 0−0.25 mm (0−0.0098 in.).
  • Page 288 (7) of the differential lock and the right−hand support bearing of the differential (8) 0.5 P 1.25 mm (0.0197 P 0.0492 in.) mod. TD60D and TD70D, TD80D, TD90D and TD95D that can be measured with the feeler gauge (T).
  • Page 289 SECTION 27 − REAR AXLE AND TRANSMISSION − CHAPTER 1 ADJUSTING THE BEVEL GEAR PAIR Determining the bevel pinion positioning ad- justment ring Proceed as follows: 1. On the transmission−gearbox case mount the outer ring of the bearing (1) fig. 100 with the test shim (2) and the outer bearing ring (3) fig.
  • Page 290 SECTION 27 − REAR AXLE AND TRANSMISSION − CHAPTER 1 6. Calculate the corrected nominal distance (H between the ring gear axis and the major base of the bevel pinion : where : = 145.5 mm (5.7283 in.). Nominal distance between the ring gear axis and major base of the bevel pinion.
  • Page 291 SECTION 27 − REAR AXLE AND TRANSMISSION − CHAPTER 1 ADJUSTING THE BEVEL GEAR PAIR Adjusting the taper−roller bearings for pinion shaft 1. Mount the external track of the bearing together with the previously calculated adjuster shim (S) and the bevel pinion complete with its parts. 2.
  • Page 292 SECTION 27 − REAR AXLE AND TRANSMISSION − CHAPTER 1 BEVEL DRIVE ADJUSTMENTS Adjusting the ring bevel gear bearings and checking the clearance between the teeth of the bevel gear pair. WARNING Handle all parts with great care. Never place your hands or fingers between one part and another.
  • Page 293 SECTION 27 - - REAR AXLE AND TRANSMISSION - - CHAPTER 1 5. One complete turn of the ring nut corresponds to a 2 mm axial movement of the crown wheel. A 60° turn of the ring nut, equivalent to one side of the ring nut hexagon, corresponds to an axial movement of the ring nut of: Z = (60 : 360) x 2 = 0.33 mm (0.0130 in.)
  • Page 294 SECTION 27 − REAR AXLE AND TRANSMISSION − CHAPTER 1 Differential casing j 187 mm (7.3622 in.) Force of the pinion at the tor- Force of the pinion at the torque meter que meter measured on the Pinion rolling torque measured on the crown wheel (with bea- crown wheel (with bearings rings pre−loaded)
  • Page 295 SECTION 27 − REAR AXLE AND TRANSMISSION − CHAPTER 1 — if the backlash is any greater, use the wrench 50027 (1) to unscrew the right−hand ring nut and tighten the left−hand one by an equal amount. — if the backlash is any lower, unscrew the left−hand ring nut and tighten the right−hand one by an equal amount.
  • Page 296 SECTION 27 − REAR AXLE AND TRANSMISSION − CHAPTER 1 ADJUSTING THE BEVEL GEAR PAIR Differential pinion and side gear backlash ad- justment With the distmantled differential on the bench, pro- ceed as follows : IMPORTANT All parts of the differential must be cleaned so that oil residue does not effect the accuracy of the adjustment.
  • Page 297 The normal clearance envisaged between the sides of the pinion and side gear teeth is 0.15 mm 25920 (0.0059 in.) for TD60D and TD70D models. It is 0.18 mm (0.0071 in.) for TD80D, TD90D and TD95D models. Bear in mind that the average ratio between the nor- mal clearance of differential pinion−side gear and the...
  • Page 298 SECTION 27 − REAR AXLE AND TRANSMISSION − CHAPTER 1 603.54.471.00 − 11 − 2004...
  • Page 299 ........31 000 - - MAIN SPECIFICATION - - TORQUE SETTINGS - - TOOLS - - SECTIONAL DRAWINGS - - DESCRIPTION AND OPERATION - - TROUBLESHOOTING MECHANICAL POWER TAKE- -OFF TD60D and TD80D, TD90D TD70D and TD95D...
  • Page 300 SECTION 31 - - POWER TAKE- -OFF - - CHAPTER 1 MECHANICAL POWER TAKE- -OFF (continued) TD60D and TD80D, TD90D TD70D and TD95D 2- -speed 540/750 rev/min PTO (option - - all models) Type ..........
  • Page 301 SECTION 31 - - POWER TAKE- -OFF - - CHAPTER 1 MECHANICAL POWER TAKE- -OFF (continued) TD60D and TD80D, TD90D TD70D and TD95D Ground speed PTO. Rear wheel speed with PTO shaft wheel rotating at 540/750 rev/min speed as for single--speed PTO (30 and 40 km/h versions) .
  • Page 302 SECTION 31 - - POWER TAKE- -OFF - - CHAPTER 1 TORQUE SETTINGS -- 25 Nm -- 162 Nm -- 221 Nm -- 294 Nm 2- -speed 540/750 rev/min PTO Single- -speed 540 rev/min PTO 26276 TORQUE SETTINGS Torque setting PART TO BE TORQUED PART TO BE TORQUED Thread...
  • Page 303 SECTION 31 - - POWER TAKE- -OFF - - CHAPTER 1 a - - single- -speed 540 rev/min PTO b - - 2- - speed 540/750 rev/min PTO 26278 Sectional diagrams of single- - and 2- -speed PTO a. Sectional diagram of single--speed PTO. 13.
  • Page 304 SECTION 31 - - POWER TAKE- -OFF - - CHAPTER 1 2- -speed 540/1000 rev/min PTO 26278 Sectional diagram of single- - and 2- -speed PTO 2. 540/1000 rev/min PTO cover. 12. Rear transmission casing. 3. PTO unit retaining screw. 13.
  • Page 305 SECTION 31 - - POWER TAKE- -OFF - - CHAPTER 1 TRE0308A Sectional diagram of single- - and 2- -speed PTO 17. PTO speed selector lever. 20. Rear cover. 18. Roll pin. 21. Fork. 19. Shaft. 22. O--ring. 603.54.471.00 - - 11 - - 2004...
  • Page 306 SECTION 31 - - POWER TAKE- -OFF - - CHAPTER 1 TRE0990A Section views - - 540 - - 1000 rev/min PTO North American version (available on request), not synchronised with gearbox, with speed selection by replacement of splined output shaft. 1.
  • Page 307 SECTION 31 - - POWER TAKE- -OFF - - CHAPTER 1 DESCRIPTION AND OPERATION OF MECHANICAL PTO The PTO, located at the rear of the tractor, transfers power to the implement being transported or towed. It can be controlled either directly from the engine clutch or from the gearbox clutch.
  • Page 308 SECTION 31 - - POWER TAKE- -OFF - - CHAPTER 1 Ground speed PTO Proceed as follows: — keep the PTO clutch control lever (1) fig. 7 on position A with PTO disengaged; — fully depress the gearbox/engine clutch pedal; —...
  • Page 309 SECTION 31 - - POWER TAKE- -OFF - - CHAPTER 1 540/750 MECHANICAL PTO Removal - - Refitting (Op. 31 112 20) WARNING Lift and handle all heavy parts using lifting tackle of sufficient capacity. Make sure that the units or parts are supported by suitable harnesses and hooks.
  • Page 310 SECTION 31 - - POWER TAKE- -OFF - - CHAPTER 1 5. Remove the six tow hook support fixing screws (1). 24955 6. Drain out the transmission/gearbox oil and col- lect it in a suitable container. 24956 7. Remove the PTO speed selector control lever (1).
  • Page 311 SECTION 31 - - POWER TAKE- -OFF - - CHAPTER 1 9. Remove the two upper screws (1) which fasten the PTO unit to the transmission. 24957 10. Insert the two guide pins 380001597 (1) and re- move the two lower screws (2) which fasten the PTO unit to the transmission.
  • Page 312 SECTION 31 - - POWER TAKE- -OFF - - CHAPTER 1 MECHANICAL PTO (540/750 rpm PTO) Bench overhaul (Op. 31 112 45 - - 31 112 48) WARNING Handle all parts with great care. Do not place hands or fingers between one part and another.
  • Page 313 SECTION 31 - - POWER TAKE- -OFF - - CHAPTER 1 4. Remove the four PTO unit internal support fixing screws (1). 24965 5. Remove the pin (1) securing the fork rod. TRE0153A 6. Withdraw the rod (1) from the rear cover. 24967 7.
  • Page 314 SECTION 31 - - POWER TAKE- -OFF - - CHAPTER 1 8. Remove the rear bearing thrust washer (1) and remove the secondary shaft (2) complete with PTO output shaft. 24969 9. Remove the retaining snap ring, the bearing (1) and the seal (if it needs replacing) from the rear cover.
  • Page 315 SECTION 31 - - POWER TAKE- -OFF - - CHAPTER 1 MECHANICAL PTO (540/1000 rpm PTO) (Interchangeable PTO Shaft) (NASO Version) Bench overhaul (Op. 31- -114) WARNING Handle all parts with great care. Do not place hands or fingers between one part and another.
  • Page 316 SECTION 31 - - POWER TAKE- -OFF - - CHAPTER 1 4. Remove the two socket head screws (1) and take off the PTO engagement mechanism (2) completely. TRE1002A 5. Withdraw two rods (1) from the cover. : Shaft securing nut tightening torque: 255Nm (188.0783 ft lb) : Cover retaining bolts tightening torque: 98 Nm (72.2811 ft lb)
  • Page 317 SECTION 31 - - POWER TAKE- -OFF - - CHAPTER 1 8. Remove the cover (1). TRE1006A 9. Remove the washer (1) and take off the gear (2). TRE1007A 10. Remove the rod (1), spring (2), fork (3) and the synchroniser (4).
  • Page 318 SECTION 31 - - POWER TAKE- -OFF - - CHAPTER 1 12. Remove the circlip (1). TRE1010A 13. Remove the drive shaft(1). TRE1011A 14. Remove both bearings (1) and (2) . TRE1012A 15. Remove the shaft (1) and the plate (2). TRE1013A 603.54.471.00 - - 11 - - 2004...
  • Page 319 SECTION 31 - - POWER TAKE- -OFF - - CHAPTER 1 To reinstall, reverse the removal procedure and refer to fig. 5 and proceed as follows: — Mount the shaft (1) and the plate (2) on the rear cover (fig. 45). —...
  • Page 320 SECTION 31 - - POWER TAKE- -OFF - - CHAPTER 1 603.54.471.00 - - 11 - - 2004...
  • Page 321 -- TD60D and TD70D ........
  • Page 322 SECTION 33 - - BRAKES - - CHAPTER 1 DATA (continued) Thickness of mobile sectors for independent parking brake: -- lateral sectors ......... 3.1 -- 3.4 (in.) (0.122 -- 0.1339)
  • Page 323 SECTION 33 - - BRAKES - - CHAPTER 1 26288 TRE0301A Sectional drawing of service and parking brakes a. models TD60D and TD70D. 10. Boot cover plate. b. models TD80D, TD90D and TD95D. 11. Boot. Parking brake section. 12. Driven gear.
  • Page 324 SECTION 33 - - BRAKES - - CHAPTER 1 12975 Service brake and parking brake diagram. a. Right--hand brake pedal in rest position and left-- 1. Brake links. hand pedal applied. 3. Actuator ball. b. Brakes in rest position. 4. Brake actuator. c.
  • Page 325 SECTION 33 - - BRAKES - - CHAPTER 1 FRONT BRAKE (MODELS TD60D and TD70D) 12975 Section through the brake fitted on the four- -wheel drive shaft. 1. Brake disc 6. Front washer 2. Disc retaining bolt 7. Rear washer 3.
  • Page 326 SECTION 33 - - BRAKES - - CHAPTER 1 FRONT BRAKE (MODELS TD80D, TD90D and TD95D) View of brake mounted in front axle. a. Cross--sectional view of axle with differential. 4. Seal. b. Cross--sectional view of axle with NO--SPIN as- 5, Piston contact spring.
  • Page 327 SECTION 33 - - BRAKES - - CHAPTER 1 DESCRIPTION & OPERATION The mechanically operated service brake system acts via clamps on the self--ventilated disc (for mod- acts on the rear wheels. els with three--cylinder engine) or via a ring piston on the brake discs fitted inside the front axle (for models The parking brake basically acts on the service with a four--cylinder engine).
  • Page 328 SECTION 33 - - BRAKES - - CHAPTER 1 TOOLS WARNING - - The operations described in this sec- List of special tools necessary for the various opera- tion must be performed only with the ESSENTIAL tions described in this section. equipment marked with (X).
  • Page 329 SECTION 33 - - BRAKES - - CHAPTER 1 FRONT BRAKE ASSEMBLY MOD: TD60D AND TD70D Removal- -Installation (Operation 33- -206 DANGER Lift and handle all heavy components using lifting equipment of adequate capacity. Make sure that the units or parts are supported by appropriate harnesses and hooks.
  • Page 330 SECTION 33 - - BRAKES - - CHAPTER 1 6. Take the two drive shafts out of the carrier and clamp the latter in a vice. TRE0953A 7. Unscrew the retaining bolts (17, fig. 9) of the calli- per bracket and remove the bracket. 8.
  • Page 331 SECTION 33 - - BRAKES - - CHAPTER 1 Bench overhaul (Operation 33- -206) DANGER Always use suitable tools to align holes. NEVER USE FINGERS OR HANDS. Reverse the removal operation sequence minding the following points: 1. Position the shaft/sleeve assy (3) Fig. 4, upright, introduce the support (4) fig.
  • Page 332 SECTION 33 - - BRAKES - - CHAPTER 1 SERVICE BRAKE Removal - - Installation (Operation 33 202 60) DANGER Lift and handle all heavy components using lifting equipment of adequate capacity. Make sure that the assemblies and parts are supported by appropriate tools and hooks.
  • Page 333 SECTION 33 - - BRAKES - - CHAPTER 1 5. Undo the retaining bolts and remove the rear LH wheel. 25646 6. Undo the bolts (1) securing the cab to its moun- ting. 7. Raise the cab slightly and place a suitable piece of wood between the hydraulic lift and the cab, taking care to avoid contact with pipes.
  • Page 334 SECTION 33 - - BRAKES - - CHAPTER 1 10. Position a stand (1) underneath the rear section of the fuel tank. 25505 11. Fit lifting hooks (1) 380000227 onto the final dri- ve box. Connect a hydraulic lift to the hooks, un- do the retaining bolts and remove the LH final dri- ve box from the transmission box.
  • Page 335 SECTION 33 - - BRAKES - - CHAPTER 1 14. Back off the link (1) and remove the complete brake unit. 15. Check actuator and brake discs for wear. ATTENTION TRE0215A Always use appropriate tools to align fixing holes. NEVER USE FINGERS OR HANDS. 16.
  • Page 336 SECTION 33 - - BRAKES - - CHAPTER 1 TRE0304A Diagram for application of sealing compound when fitting braking assembly between the final drive housing and the rear transmission box. The types of sealing compound to be applied are listed on page 1 of Section 00. 603.54.471.00 - - 11 - - 2004...
  • Page 337 SECTION 33 - - BRAKES - - CHAPTER 1 HYDRAULIC FRONT BRAKE PUMP (OPTIONAL) Removal - - Installation (Operation. 33 202 50) ATTENTION Handle all parts carefully. Do not insert fingers or hands between one part and another. Always wear the prescribed safety clothing, including protective glasses, gloves and shoes.
  • Page 338 SECTION 33 - - BRAKES - - CHAPTER 1 5. Unscrew the locknut and remove the control pump (1). TRE0213A 6. Remove the front hydraulic pump internal parts. Check the seals and piston. ATTENTION Always use appropriate tools to align fixing holes. NEVER USE FINGERS OR HANDS.
  • Page 339 SECTION 33 - - BRAKES - - CHAPTER 1 HYDRAULIC FRONT BRAKE SYSTEM (Optional) Bleeding the air (Operation 33 202 04) Air must be bled whenever work has been carried out on the front brake hydraulic system. Proceed as follows. 1.
  • Page 340 SECTION 33 - - BRAKES - - CHAPTER 1 SERVICE BRAKE PEDALS Adjusting height of service brake pedals (Operation 33 120 08) 1. With the brake pedals connected to their respec- tive forks and the pedal connecting pin removed, check that the pedal adjustment. 2.
  • Page 341 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 SECTION 35 − HYDRAULIC SYSTEM Chapter 1 − Rear mechanical hydraulic lift CONTENTS Section Description Page 35 000 Main specification ............. Tightening torques .
  • Page 342 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 MAIN SPECIFICATION OF REAR MECHANICAL HYDRAULIC LIFT (continued) Lift piston diameter: − All models ......... . . 99.980 −...
  • Page 343 − TD60D, TD70D Models ....... . 2260 (lb) (4982.45)
  • Page 344 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 MAIN SPECIFICATION OF HYDRAULIC PUMP (All models) (continued) Driven and driving gear shaft diameter ..... . 17.400 −...
  • Page 345 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 − 157 Nm − 88 Nm − 260 Nm − 25 Nm − 142 Nm − 147 Nm 26370 TORQUE SETTINGS Tightening torque Thread Thread ft lb Bolt securing lift to rear transmission casing (C ) .
  • Page 346 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 TOOLS HYDRAULIC LIFT EQUIPMENT Warning − The operations described in this section cannot be carried out without the ESSENTIAL tools marked below with (X). However, to ensure greater safety and obtain the best results while saving time and effort, we recom- mend that these essential tools are used in conjunc- tion with the specific tools listed below as well as cer-...
  • Page 347 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 TRE0700A Sectional drawing of lift G = 0.2 to 1.4 mm (0.0079 to 0.551 in.). 11. Top link support. Shaft end float. 12. Piston rod pin. 1. Inner arm. 13. Travel limit adjusting screw. 2.
  • Page 348 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 Sectional drawing of hydraulic lift control valve block 604.54.471.00 − 11 − 2004...
  • Page 349 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 Sectional drawing of hydraulic lift control valve block a. Detail of O−ring and arm lowering adjuster valve 9. Spring cup. anti−extrusion ring. 10. Intervention speed adjustment valve spring. b. Detail of O−ring and control valve pin seat anti− 11.
  • Page 350 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 Oil at static rest Intake oil Pressurized oil Discharge oil MDH1893A HYDRAULIC LIFT CIRCUIT 1. Trailer brake valve delivery line. 8. Oil filter. 2. Trailer brake valve. 9. Hydraulic pump. 3. Auxiliary control valves. 10.
  • Page 351 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 Pressurized oil Oil in suction, delivery or return Oil at static rest TRE0702A ARM LIFT PHASE 1. Control valve block pin. a. Position control linkages. 5. Pilot valve pin. b. Draft control linkages. 6.
  • Page 352 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 Pressurized oil Oil in suction, delivery or return Oil at static rest TRE0703A NEUTRAL PHASE a. Position control linkages. 1. Control valve block pin. b. Draft control linkages. 5. Pilot valve pin. F.
  • Page 353 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 Pressurized oil Oil in suction, delivery or return Oil at static rest TRE0704A ARM LOWERING PHASE a. Position control linkages. 1. Plunger. b. Draft control linkages. 14. Plunger spring. B. Draft control transmission. 18.
  • Page 354 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 Unscrewing the screw (16) decreases the load on After adjusting the arm descent speed it will not de- the spring (15), therefore the valve (14) can vibrate pend on the weight bearing on the arms but will be faster, slowing down the descent speed.
  • Page 355 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 HYDRAULIC LIFT DIAGNOSTICS (continued) Problems Possible causes Remedies The lift is unable to keep the load 1. Defective seal on check valve. Take off, check, clean and if neces- raised (with the engine running, sary replace the parts concerned.
  • Page 356 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 REMOVAL − REFITTING − OVERHAUL OF REAR MECHANICAL HYDRAULIC LIFT ASSEMBLY REAR HYDRAULIC LIFT ASSEMBLY Removal−Refitting (Op. 35 110 30) DANGER Lift and handle all heavy parts using suitable lifting equipment with sufficient hoisting capacity. Check that the assemblies or parts are held firmly and supported by suitable slings and hooks.
  • Page 357 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 3. Undo the bolts (1) and use a chain and hoist to remove the pick−up hitch hook (2) from the PTO box. TRE0113A 4. Remove the split pins and withdraw the shafts (1).
  • Page 358 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 7. Remove auxiliary control valve pipes (2) from their support (1). TRE0140A 8. Undo the two bolts (1) that secure the seven− pole socket (2) and remove the socket. TRE0122A 9. Undo the bolts (1) and remove the support (2). TRE0115A 10.
  • Page 359 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 11. Remove the electric socket (1). TRE0123A 12. Remove the retaining clips (1) and detach the two control rods (2) from the lifting arms. Remo- ve the additional control valve rods and the PTO operating mode rod.
  • Page 360 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 15. Unscrew the two cab front securing bolts (1). TRE0129A 16. Unscrew the two cab rear securing bolts (1). Raise approximately 5−6 (0.1969−0.2362 in.) and place wooden blocks (1) between the cab upright and the housing. Lower the hoist so that the cab rests securely on the wooden block.
  • Page 361 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 19. Fit tool 380000237 (1) on the lift and tighten the four bolts (2). 25558 20. Fit tool 380000224 (1) onto tool 380000238 (2). Attach the hoist to tool 380000224, raise the hydraulic lift by a few centimetres and pull it backwards, tilting it so that it clears the breather pipe (3) without damaging it.
  • Page 362 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 21. Refit the hydraulic lift assembly to the transmis- sion casing as follows. WARNING Always use appropriate tools to align fixing holes. NEVER USE YOUR FINGERS OR HANDS. − Before refitting the hydraulic lift assembly to the rear transmission casing, clean and degrease the mating surfaces thoroughly and apply a strip of sealing compound of about 2 mm (0.0787 in.)
  • Page 363 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 REAR HYDRAULIC LIFT ASSEMBLY Disassembly−Assembly (Op. 35 110 17 − 35 110 40 − 35 110 42 − 35 110 46) DANGER Handle all parts with the utmost care. Do not place your hands or fingers between one part and another.
  • Page 364 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 6. Remove the retaining pin from the internal draft lever, unscrew the nut (1), then remove the unit complete with internal linkages and the LIFT− O−MATIC control lever. TRE0134A 7. Take off the snap ring and remove the internal position control lever (1).
  • Page 365 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 12. Use compressed air to remove the piston (2) from its cylinder (1). 26297 13. Use striker tool 380000260 (1) to replace the bearings in the internal draft control lever (2). 14. Use striker tool 380000261 to replace the control valve block control lever bearings.
  • Page 366 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 18. To avoid damaging the internal seal lips, use a flexible brass sheet (1) of size 200 x 90 mm (7.8740 x 3.5433 in.) and thickness 0.05 − 0.1 mm (0.0020 x 0.0039 in.). Roll the sheet up and insert the seal inside.
  • Page 367 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 21. Fit the internal linkages and the corresponding eccentric pin. Fasten the eccentric pin by tightening the securing bolts. 22. Fit the control levers complete with friction discs, snap rings and stud bolts. 23.
  • Page 368 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 ADJUSTING THE LIFT The following adjustments refer to a lift assembly without hydraulic control valve block and mounted on a rotary stand. These adjustments must be made in the order speci- fied. The LIFT−O−MATIC device must be kept turned off (external control lever (1) locked in the vertical posi- tion) until otherwise specified.
  • Page 369 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 4. Fit tool 380000264 (4) fig 49, to the lift body. The tool has a plunger operating in a tube, the outer end of which has two reference surfaces (1) and (5). 5.
  • Page 370 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 10. Connect the fitting (5) of tool (2) to the workshop compressed air system. Feed air into the cylinder barrel to make the piston perform its complete lifting stroke and use the air pressure to keep it in this position.
  • Page 371 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 17. Fit tool 380000263 (1) to the lift body and fasten it to the two holes in the box as shown in figure 25642 18. Turn the screw (2) fig. 56 on the internal draft control lever (3) fig.
  • Page 372 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 24. The distance (L , page 32) must be: where: = distance measured with tool 380000263 mounted on a surface plate: = 22.9 − 23.1 mm (0.9016 − 0.9094 in.). Oper- ating distance between the lift box bearing sur- face on the transmission casing and the rod rest- ing surface on the lever (3, fig.
  • Page 373 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 27. Fit the draft measuring device complete with transmission lever (3) and draft control lever (2), but without the flex bar, onto the rear transmis- sion casing. 28. Rest the transmission lever (3) on the draft measuring device box and fit tool 380000263.
  • Page 374 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 ADJUSTING LINKAGES (Op. 35 110 08) Adjusting position control linkage Proceed as follows. 1. Move the position control lever (1) fully forward on the quadrant and check that the distance (L) is between 15 and 20 mm (0.5906 and 0.7874 in.).
  • Page 375 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 8. Move the draft control lever (2) to a distance (L of 105 − 115 mm (4.1338 − 4.5275 in.) from the beginning of the slot and check that at this position the arms start to rise. 9.
  • Page 376 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 LIFT PRESSURE RELIEF VALVE Removing−Refitting (Op. 35 114 30) Auxiliary control valve blocks. The lift pressure relief valve (1) is located as shown in fig. 73) If defective, remove and change the valve. TRE0139A LIFT PRESSURE RELIEF VALVE Calibration (Op.
  • Page 377 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 LIFT CONTROL VALVE BLOCK, DETACHED Disassembly−Assembly (Op. 35 114 14) Proceed as follows. WARNING Handle all parts with the utmost care. Do not place your hands or fingers between one part and another. Wear the prescribed safety clothing, in- cluding glasses, gloves and protective footwear.
  • Page 378 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 4. Take off the cylinder safety valve (4) and remove the arm lowering speed adjustment valve (3), the spring (2) and the pin (1). 25709 5. Remove the check valve union (1), spring (2) and ball (3).
  • Page 379 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 9. Fit the control valve block pin (2) complete with seat (3) on the tool 380000274 (1). 25715 10. Fit the control valve block pin spring (1) and the cap (2) of tool 380000274. Tighten the cap as far as it will go and check that the control valve block pin slides in its seat.
  • Page 380 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 15. Operate the hand pump until the oil in the system is at an initial pressure of 245 bar − 3553.41 psi. Using the pressure gauge, check that it takes more than six seconds for the pressure to fall from 196 bar −...
  • Page 381 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 24622 Hydraulic lift control pump components Front cover. 11. Driving shaft seal. Cover seals. 12. Snap ring. Pump body. 13. Safety washer. Gear support. 14. Nut. Driven and driving gear shafts. 15. Bolt. Gear support.
  • Page 382 SECTION 35 − HYDRAULIC SYSTEM − CHAPTER 1 6. Remove the seals (2) and the anti−extrusion rings. Once the parts are removed, proceed as follows: 7. Check that the gear contact surfaces are flat and perpendicular to their supports. Insert a thin layer of carbon black.
  • Page 383 SECTION 35 - - HYDRAULIC SYSTEM - - CHAPTER 2 SECTION 35 - - HYDRAULIC SYSTEM Chapter 2 - - Open centre system auxiliary control valves CONTENT Section Description Page 35 000 Main data -- Tools ............. Cross--sectional views .
  • Page 384 SECTION 35 - - HYDRAULIC SYSTEM - - CHAPTER 2 29 30 TRE0711A Auxiliary control valves - - Section views a. Auxiliary control valve for convertible single/ 14. Seal. double--acting cylinder. 15. Control lever. b. Auxiliary control valve for convertible single/ 16.
  • Page 385 SECTION 35 - - HYDRAULIC SYSTEM - - CHAPTER 2 DESCRIPTION & OPERATION The auxiliary control valves serve for control of hydraulic loads external to the tractor. Up to a maximum of three auxiliary control valves can be fitted, fixing them on the back of the transmission at the right--hand side.
  • Page 386 SECTION 35 - - HYDRAULIC SYSTEM - - CHAPTER 2 OPERATING STAGES OF A CONVERTIBLE SINGLE/DOUBLE- -ACTING AUXILIARY CONTROL VALVE WITH AUTOMATIC RELEASE AND DETENT IN FLOAT (Detail of automatic release and detent) Pressurized oil Oil in suction, delivery or return Oil at static rest 13 14 TRE0750A...
  • Page 387 SECTION 35 - - HYDRAULIC SYSTEM - - CHAPTER 2 Pressurized oil Oil in suction, delivery or return Oil at static rest TRE0750C Operation in lifting phase. When the pin (4, fig. 5)) moves to the right, the detent by way of line (B), while the upper chamber is con- balls (10, fig.
  • Page 388 SECTION 35 - - HYDRAULIC SYSTEM - - CHAPTER 2 Pressurized oil Oil in suction, delivery or return Oil at static rest TRE0750A Float function To select float mode operation, push the control lever acting on the attached implement is that of gravity in the cab fully forward.
  • Page 389 SECTION 35 - - HYDRAULIC SYSTEM - - CHAPTER 2 OPERATING STAGES OF AUXILIARY CONTROL VALVE FOR OPERATION OF A DOUBLE- -ACTING CYLINDER (FIGS. 9 and 10) AND A SINGLE- -ACTING CYLINDER (FIGS.11 and 12) 1. LIFTING -- Pushing the control lever in the cab for- wards moves the pin (2), thereby connecting the de- livery line (P) with the cylinder lower chamber via line (A) and moreover the discharge line (T), via line (B),...
  • Page 390 SECTION 35 - - HYDRAULIC SYSTEM - - CHAPTER 2 4. LOWERING -- On pulling the control lever back, the control valve pin (2) moves as shown in fig. 12. The oil contained in the cylinder, pressurised by the weight of the lifted implement, will flow to the exhaust (T) by way of line (A), while the entire flow from the pump is also conveyed to the exhaust (T) through the line (B).
  • Page 391 SECTION 35 - - HYDRAULIC SYSTEM - - CHAPTER 2 OPERATING STAGES OF AUXILIARY CONTROL VALVE OPERATING A DOUBLE- -ACTING CYLINDER WITH AUTOMATIC DETENT RELEASE Pressurized oil Oil in suction, delivery or return Oil at static rest TRE0716A LOWERING On pushing the control lever forwards, the (2) moves of the spring of the needle valve (23).
  • Page 392 SECTION 35 - - HYDRAULIC SYSTEM - - CHAPTER 2 AUXILIARY CONTROL VALVES (REMOVED FROM TRACTOR) Disassembly - - Assembly (Operation 35 204 46) of control valves removed from tractor CAUTION Handle all parts with care. Do not insert fingers or hands between one part and another.
  • Page 393 SECTION 35 - - HYDRAULIC SYSTEM - - CHAPTER 2 CONTROL VALVE PIN BINDING TEST TRE0719A Control valve pin binding test (fig. 16). tion) the flow goes through the valve from inlet to outlet (tank line) (P) to (T). Now regulate the Install the auxiliary control valve assembly and the test maximum pressure of the VS (main relief valve) apparatus as indicated in the diagrams (fig.
  • Page 394 SECTION 35 - - HYDRAULIC SYSTEM - - CHAPTER 2 CONTROL VALVE PIN LEAKAGE TEST TRE0720A Valve leakage test time (say 60 seconds). From this stroke, calculate the volume of oil per minute through that section of After the binding test (with hot oil and valve), mea- the cylinder.
  • Page 395 SECTION 35 - - HYDRAULIC SYSTEM - - CHAPTER 3 SECTION 35 - - HYDRAULIC SYSTEMS Chapter 3 - - Trailer brake auxiliary control valve CONTENT Section Description Page 35 000 Section views ..............Hydraulic diagram .
  • Page 396 SECTION 35 - - HYDRAULIC SYSTEM - - CHAPTER 3 HYDRAULIC DIAGRAM OF TRAILER BRAKE AUXILIARY CONTROL VALVE MDH1896A Diagram of the hydraulic trailer brake circuit Lift control valve. 1. Suction line from rear transmission. . Additional control valve. 2. Delivery line to the trailer brake control valve. Filter.
  • Page 397 SECTION 35 - - HYDRAULIC SYSTEM - - CHAPTER 3 TRAILER BRAKES OFF 11 1 When tractor brakes are inactive, pressure limiter (4) and slide piston (2) take up the positions shown in fig. 3. Oil from hydraulic pump (P, fig 2) is directed to fitting ) through diaphragm (11) and restriction (9) which causes a pressure drop to move flow control valve (1) to the right.
  • Page 398 SECTION 35 - - HYDRAULIC SYSTEM - - CHAPTER 3 BRAKING -- Continued brake pedal application (Pf,) causes an increase in oil pressure at trailer brake connection (B) which, acting on the active surface (13) of slide piston (2), moves the latter to the right thereby overcoming the opposition of the check valve springs (8) of the pressure limiter (4).
  • Page 399 SECTION 35 - - HYDRAULIC SYSTEM - - CHAPTER 3 TRE0725A Trailer brake remote control valve linkage adjustment Wrench flats on link (6). Clearance between fork (7) and piston (10) G = 0.3- -0.5mm. Pressure gauge with 0 to 250 kg/cm scale of kit 380000240.
  • Page 400 SECTION 35 - - HYDRAULIC SYSTEM - - CHAPTER 3 TRAILER BRAKE AUXILIARY CONTROL VALVE LINKAGE ADJUSTMENT Proceed as follows: 1. Adjust the brake pedal travel (8) as indicated in section 33 chapter 1 page 20. 2. Adjust parking brake lever (9) as described in sec- tion 33 chapter 1 page 20.
  • Page 401 SECTION 41 − STEERING − CHAPTER 1 SECTION 41 − STEERING Chapter 1 CONTENTS Section Description Page 41 000 Principal data ..............Tightening torques .
  • Page 402 SECTION 41 − STEERING − CHAPTER 1 MAIN SPECIFICATIONS OF HYDRAULIC PUMP Pump Type ............gear type, with oil suction from transmission casing Location .
  • Page 403 SECTION 41 − STEERING − CHAPTER 1 TORQUE SETTINGS Torque setting PART PART Thread Thread ft lb Bolt fixing hydrostatic steering to tractor ......3/8”−16 UNC 32.4527 Bolt fixing cover to hydrostatic steering housing (13, fig.
  • Page 404 SECTION 41 − STEERING − CHAPTER 1 TRE0431A Hydraulic diagram Power steering cylinder. Control valve outlet. Hydrostatic steering control valve. Pump inlet. Filter. Oil delivery to control valve. Oil tank. Right − left steering. Pump. 603.54.471.00 − 11 − 2004...
  • Page 405 SECTION 41 − STEERING − CHAPTER 1 OPERATION Neutral position When the steering wheel (V, fig. 3) is not moving, the rotating valve (5) is located in the neutral position in relation to the sleeve (6). In this position, retained by springs (2, sect.
  • Page 406 SECTION 41 − STEERING − CHAPTER 1 13714 R−ht L−ht 13723 Delivery oil to control cylinder Delivery oil to rotor Intake oil, low pressure delivery or discharge Static rest oil El−ht Er−ht 13722 603.54.471.00 − 11 − 2004...
  • Page 407 SECTION 41 − STEERING − CHAPTER 1 Left−hand steering control (B, L−ht, fig. 3) By turning the steering wheel in an anticlockwise direction, the movement of the parts is inverted, the delivery grooves D−D F−F (17, sect. E−E, fig. 2) direct the oil to the ducts (20) and con- trol the left−hand turning action.
  • Page 408 SECTION 41 − STEERING − CHAPTER 1 Hydrostatic steering control valve components Dust seal ring. 10. O−ring. Control valve body, rotating valve and rotating valve 11. Shim ring. seat sleeve. 12. Cover retaining screws. Non−return valve ball. 13. Washers. Seal. 14.
  • Page 409 SECTION 41 − STEERING − CHAPTER 1 HYDROSTATIC STEERING FAULT DIAGNOSIS Refer to fig. 5 for component identification Problem Possible causes Corrective action Oil leaking from hydrostatic steer- 1. O−ring seal defective (4). Renew the seal and the stop ring ing unit: using special tool 380000836.
  • Page 410 SECTION 41 − STEERING − CHAPTER 1 HYDROSTATIC STEERING FAULT DIAGNOSIS Refer to fig. 5 for component identification (continuation) Problem Possible causes Corrective action Steering wheel jolts, steering 1. Incorrect synchronization of Synchronize correctly. uncontrollable, wheels steering in hydrostatic steering. Correct the connections.
  • Page 411 SECTION 41 − STEERING − CHAPTER 1 HYDROSTATIC STEERING CONTROL VALVE Removal−Refitting (Op. 41 204 30) WARNING Handle all parts with great care. Do not put your hands or fingers between one part and another. Wear the recommended safety clothing such as goggles, gloves and safety boots.
  • Page 412 SECTION 41 − STEERING − CHAPTER 1 6. Remove the four securing screws (1) from the instrument panel (2). 25759 7. Disconnect the electrical leads (1) from the rear of the instrument panel. Unscrew the the tachometer cable (2). Remove the instrument panel and store in a safe place.
  • Page 413 SECTION 41 − STEERING − CHAPTER 1 10. Remove the hydrostatic steering unit support bolts and take of the hydrostatic steering unit. TRE0028A − To refit the control valve, proceed as follows: − Refit the hydrostatic steering unit. − Refit the complete rear hood. −...
  • Page 414 SECTION 41 − STEERING − CHAPTER 1 HYDROSTATIC STEERING CONTROL VALVE Overhaul on bench (Operation 41 204 34) To disassemble the hydrostatic steering control valve, proceed as follows: 1. Remove the control valve cover retaining bolts. 24701 2. Remove the cover by sliding to one side. 24702 3.
  • Page 415 SECTION 41 − STEERING − CHAPTER 1 6. Extract the thrust washer. 24705 7. Remove the threaded plug on the non−return valve seat. 24706 8. Extract the O−ring seal from the control valve body. 24707 9. Position the control valve body and the rotor drive shaft so that the sleeve−control shaft trim pin is in a horizontal position.
  • Page 416 SECTION 41 − STEERING − CHAPTER 1 11. Extract the thrust bearing from the rotary valve, complete with the two external rings. Remove the spring retaining ring from the valve seat sleeve. 24710 12. Extract the valve−sleeve trim pin. 24711 WARNING: On assembly, two reference marks (arrowed) were made on the rotary valve and the sleeve, corresponding to the neutral position main-...
  • Page 417 SECTION 41 − STEERING − CHAPTER 1 14. Remove the neutral position springs, extracting them from their seats. 24714 15. Remove the dust seal and the O−ring seal from their seats in the control valve body. 20428 16. Using a 6 mm Allen wrench, remove the threaded plugs from the two cylinder safety valves and extract the seals.
  • Page 418 SECTION 41 − STEERING − CHAPTER 1 Cylinder safety valves components (order of disas- sembly−assembly). 1. Cylinder safety valve ball. 2. Pressure spring. 3. Setting adjuster screw. 4. Seal. 5. Plug. 25790 19. Using a 6 mm Allen wrench, remove the threaded plug on the pressure relief valve and extract the seal.
  • Page 419 SECTION 41 − STEERING − CHAPTER 1 22. Thoroughly clean all control valve component parts. 23. Replace the washers and seals. 24. Carefully check all mechanical parts, replacing components that show signs of wear. 25. Before re−fitting, lubricate the components with hydraulic oil.
  • Page 420 SECTION 41 − STEERING − CHAPTER 1 29. Fit the neutral position spring retaining ring on the valve seat sleeve, remembering that the ring must rotate freely without being impeded by the springs. 24730 30. Insert the sleeve−rotor drive shaft trim pin. 24731 31.
  • Page 421 SECTION 41 − STEERING − CHAPTER 1 32. Position the control valve body so that the housing seat on the rotary valve sleeve is positioned horizontally, then insert the guide bushing (1) of tool 380000305. 24734 33. Lubricate the support ring (1) and O−ring seal (2) with hydraulic oil and fit them on the head (3) of the tool 380000305, as shown in the drawing.
  • Page 422 SECTION 41 − STEERING − CHAPTER 1 35. Holding the external bushing in position man- ually, press fully down, whilst simultaneously rotating the drift, in order to facilitate the entry of the O−ring seal in the control valve body seat. 24737 36.
  • Page 423 SECTION 41 − STEERING − CHAPTER 1 39. Rotate the control valve body and insert the non−return valve ball into the seat indicated by the arrow. 24741 40. Screw the threaded plug into the non−return valve seat until the upper surface is below the coupling surface of the control valve body.
  • Page 424 SECTION 41 - - STEERING - - CHAPTER 1 43. Make a reference mark on the upper part of the teeth (1), in line with the seat (2), to indicate the exact position of the valve--to--sleeve trim pin. 24748 44. Fit the rotor drive shaft into the control valve body.
  • Page 425 SECTION 41 − STEERING − CHAPTER 1 46. Lubricate the two O−ring seals (1) with hydraulic oil and insert them in the rotor fixed ring seat. Fix in position by aligning the retaining holes (2) with those on the thrust washer. 24751 47.
  • Page 426 SECTION 41 − STEERING − CHAPTER 1 50. Turn over the control valve body and insert the pressure relief valve piston in the seat, as indicated in the drawing. See fig. 34 for component assembly order. 24756 51. Insert the pressure relief valve spring. 24757 52.
  • Page 427 SECTION 41 - - STEERING - - CHAPTER 1 Cylinder safety valves components (order of assembly) 1. Cylinder safety valve ball. 2. Pressure spring. 3. Setting adjuster screw. 4. Seal. 5. Plug. 25790 55. Insert the springs (2, fig. 64) in the cylinder safety valve seats.
  • Page 428 SECTION 41 − STEERING − CHAPTER 1 HYDROSTATIC STEERING CONTROL VALVE Bench testing (Op. 41 204 38 ) Test conditions Oil type ..ISO VG 68, DIN 51524/51525 Oil viscosity ..... . . SAE 20 W Oil temperature .
  • Page 429 SECTION 41 − STEERING − CHAPTER 1 B − CHECKING RETURN TO NEUTRAL POSITION In the same test conditions as A, check that the valve automatically returns to neutral position when the control shaft (1) is released after each simulated steering movement.
  • Page 430 SECTION 41 − STEERING − CHAPTER 1 Hydrostatic steering − Oil pump components 11. Driving shaft seal 1. Front cover 12. Snap ring 2. Cover seals 13. Safety washer 3. Pump body 14. Nut 4. Gear support 15. Bolt 5. Driven and driving gear shafts 16.
  • Page 431 SECTION 41 − STEERING − CHAPTER 1 5. Remove the supports (4 and 6) and the gears (5) from the rear cover (8) and the pump body (3). 6. Remove the seals (2) and the anti−extrusion rings.Once the parts are removed, proceed as follows: 7.
  • Page 432 SECTION 41 − STEERING − CHAPTER 1 FRONT AXLE STEERING CYLINDER (Two wheel drive axle) (Op. 41 216 20) Removal−Refitting WARNING Handle all parts with great care. Do not put your hands or fingers between one part and another. Wear the recommended safety clothing such as goggles, gloves and safety boots.
  • Page 433 SECTION 41 − STEERING − CHAPTER 1 FRONT AXLE STEERING CYLINDER (Four wheel drive axle) Removal−Refitting WARNING Handle all parts with great care. Do not put your hands or fingers between one part and another. Wear the recommended safety clothing such as goggles, gloves and safety boots.
  • Page 434 SECTION 41 − STEERING − CHAPTER 1 603.54.471.00 − 11 − 2004...
  • Page 435 SECTION 44 - - FRONT AXLE AND WHEELS - - CHAPTER 1 SECTION 44 - - FRONT AXLE AND WHEELS Chapter 1 - - Front axle and wheels CONTENTS Section Description Page 44 000 Principal data ..............Sectional views .
  • Page 436 (in.) 1500 1500 1400 1400 1500 1500 1600 1600 1700 1700 1800 1800 1900 1900 TD60D TD60D 7 50 16 in 7.50--16 in. (59.0550) (55.1180) (59.0550) (62.9920) (66.9290) (70.8660) (74.8030) TD70D TD80D TD80D 1510 1510 1410...
  • Page 437 SECTION 44 - - FRONT AXLE AND WHEELS - - CHAPTER 1 26155 Sections of stub axle, articulation pin and front axle 1. Axle articulation pin 10. Bronze thrust ring 2. Axle articulation bushing 11. Seal 3. Steering transverse tie rod 12.
  • Page 438 SECTION 44 - - FRONT AXLE AND WHEELS - - CHAPTER 1 -- 49 Nm -- 314 Nm -- 186 -- 206 Nm -- 186 -- 206 Nm -- (*) -- 186 -- 257,7 Nm 26157 Front axle torque settings Axle articulation pin fixing screw Nut for stub axle pin control lever fixing screw Nut securing disc to wheel hub...
  • Page 439 SECTION 44 - - FRONT AXLE AND WHEELS - - CHAPTER 1 TORQUE SETTINGS Torque setting PART PART Thread Thread ft lb Front axle Bolt securing axle to engine ....... . . M 18 x 1.5 478.6045 Axle articulation pin retaining bolt (C...
  • Page 440 SECTION 44 - - FRONT AXLE AND WHEELS - - CHAPTER 1 FRONT AXLE Removal- -Refitting (Op. 44 101 30) DANGER Lift and handle all heavy parts with lifting equipment of suitable capacity. Make certain that the units or parts are supported by appropriate slings and hooks.
  • Page 441 SECTION 44 - - FRONT AXLE AND WHEELS - - CHAPTER 1 5. Disconnect the hoses (1) of the power steering cylinder (2). 24768 6. Remove the axle articulation pin securing bolt (1). 24769 7. Secure the axle by means of a sling (1). 24770 8.
  • Page 442 SECTION 44 - - FRONT AXLE AND WHEELS - - CHAPTER 1 9. Remove the complete axle (1). 24772 10. To refit the complete axle, follow the disassembly procedure in reverse order. Install the axle artic- ulation pin (1) using a bronze punch. 11.
  • Page 443 SECTION 44 - - FRONT AXLE AND WHEELS - - CHAPTER 1 AXLE WHEEL HUB Removal- -Refitting (Op. 44 101 22) WARNING Handle all parts with great care. Do not put your hands or fingers between one part and another. Wear the recommended safety clothing such as goggles, gloves and safety boots.
  • Page 444 SECTION 44 - - FRONT AXLE AND WHEELS - - CHAPTER 1 5. Remove the wheel hub bearing cover (1). 24775 6. Remove the staking securing the wheel hub bearing adjuster nut (1). 24776 7. Using a socket wrench, unscrew the wheel hub bearing adjuster nut.
  • Page 445 SECTION 44 - - FRONT AXLE AND WHEELS - - CHAPTER 1 9. Renew worn bearings and seals, using suitable extractors and punches. 24780 10. Pack the wheel hub with AMBRA GR9 grease. 11. Refit the wheel hub (2) complete with bearings (1 and 3).
  • Page 446 SECTION 44 - - FRONT AXLE AND WHEELS - - CHAPTER 1 STUB AXLE Overhaul (Op. 44 101 46) WARNING Handle all parts with great care. Do not put your hands or fingers between one part and another. Wear the recommended safety clothing such as goggles, gloves and safety boots.
  • Page 447 SECTION 44 - - FRONT AXLE AND WHEELS - - CHAPTER 1 5. Place a hydraulic jack beneath the stub axle and unscrew the bolt (1) fixing the control lever (2) to the stub axle pin. 24782 6. Withdraw the control lever (1) from the stub axle pin (2).
  • Page 448 SECTION 44 - - FRONT AXLE AND WHEELS - - CHAPTER 1 9. Remove the axle end (1). 24786 10. Clamp the end of the axle in a vice and using a slide hammer, take out the stub axle pin articula- tion bushing (1).
  • Page 449 SECTION 44 - - FRONT AXLE AND WHEELS - - CHAPTER 1 13. At the base of the stub axle refit the cap (9, fig. 2), then the levelling rings (1), inserting them on the stop grub screws (8 and 14, as shown in figure 2). 24789 14.
  • Page 450 SECTION 44 - - FRONT AXLE AND WHEELS - - CHAPTER 1 CHECKING THE ALIGNMENT OF THE FRONT WHEELS (Op. 44 511 80) Check the alignment of the front wheels, bearing in mind that for driving in a straight line, the wheels must be at an angle of 2°...
  • Page 451 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 SECTION 50 - - CAB AIR CONDITIONING SYSTEM Chapter 1 - - Cab air conditioning system CONTENTS Section Description Page 50 000 Safety instructions ............General characteristics .
  • Page 452 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 CAB AIR CONDITIONING SYSTEM SAFETY — freezing of the skin caused by contact with liquid refrigerant can be treated by gradually warming the injured area with cold water followed by appli- cation of a greasy cream.
  • Page 453 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 CAB AIR CONDITIONING SYSTEM CHARACTERISTICS SANDEN SD 7H15 Compressor Number of cylinders ..........Total displacement .
  • Page 454 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 TOOLS REQUIRED FOR SERVICING THE AIR CONDITIONING SYSTEM Warning -- The operations described in this section cannot be carried out without the ESSENTIAL tools marked (X) in the following list. To work in safety and to obtain the best possible results whilst saving both time and energy, we recommend that the other specific tools in the list are also used.
  • Page 455 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 OPERATING PRINCIPLES As regards the purity of the air, there are no precise limits, but it is important to remember that the human The function of the air conditioning system is to metabolism alters the composition of the surround- create and maintain optimum working conditions in- ing air, increasing the humidity and the quantity of...
  • Page 456 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 There are five main components of the air condition- ing on the ambient temperature) which thus changes ing system: its state from a vapour to a liquid. 1. compressor; The refrigerant, in liquid state at high pressure, is pu- 2.
  • Page 457 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 AIR CONDITIONING SYSTEM FAULT DIAGNOSIS THE SYSTEM DOES NOT WORK Check fuses. Check compressor drive belt tension. Check if the clutch coil is receiv- ing power. Check that the earth contact is efficient.
  • Page 458 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 AIR CONDITIONING SYSTEM FAULT DIAGNOSIS (cont.) INSUFFICIENT COOLING DISCHARGE PRESSURE LOW DISCHARGE PRESSURE NOR- HIGH DISCHARGE PRESSURE AND/OR SUCTION PRESSURE MAL AND/OR SUCTION PRES- AND/OR HIGH SUCTION PRES- SURE NORMAL SURE CHECK THE...
  • Page 459 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 AIR CONDITIONING SYSTEM FAULT DIAGNOSIS (cont.) INSUFFICIENT COOLING DISCHARGE PRESSURE HIGH DISCHARGE PRESSURE HIGH DISCHARGE PRESSURE AND/OR NORMAL SUCTION AND/OR SUCTION PRESSURE NORMAL AND/OR SUCTION PRESSURE NORMAL/ PRESSURE HIGH Note: the pressure reading of the OBSTRUCTION...
  • Page 460 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 AIR CONDITIONING SYSTEM FAULT DIAGNOSIS (cont.) COMPRESSOR AND ELECTRO- MAGNETIC CLUTCH NO COOLING ABNORMAL NOISE ABNORMAL NOISE WITH CLUTCH DISENGAGED WHEN CLUTCH ENGAGED OR VIBRATION 1. Check all compressor mountings. 2.
  • Page 461 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 CAB HEATING AND VENTILATION CONTROLS VENTILATION Turn on cab ventilation by operating switch (2) fig. 4 and direct the air flow as required by positioning the front vents (3, fig. 5). The operator may select outside air or inside air by adjusting the rear air recirculation vents (1, fig.
  • Page 462 (circulation of hot water fully open). Note -- The total capacity of the cooling system (*in- cluding the cab heating system) is 14 litres in the TD60D model or 16 litres in TD70D, TD80D, TD90D and TD95D models. IGNITION SWITCH...
  • Page 463 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 TRE0012A CAB AIR CONDITIONING CONTROLS SWITCHING ON THE AIR CONDITIONING AND TEMPERATURE CONTROL Air conditioning and temperature control button Operational when ignition switch is in the starting position. With fan control knob (1, fig 9) in positions A--B or C, turn knob (2, fig 9) to switch on the air conditioning.
  • Page 464 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 USE OF THE AIR CONDITIONING SYSTEM The air conditioning system provides cool, dehumidi- To lower the temperature and, at the same time, the fied air or warm dehumidified air. humidity of the air inside the cab, turn knob (2, fig.
  • Page 465 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 MAIN COMPONENTS OF THE AIR CONDITION- ING SYSTEM Axial flow reciprocating piston compressor SANDEN SD 7H15 Combined inlet and discharge valve. Piston with seal ring. Drive gear. Swash--plate. Cam rotor.
  • Page 466 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 Condenser In the condenser the refrigerant is transformed from a vapour to a liquid state. As this occurs by transfer of the heat from the refrig- erant to the ambient air, the condenser functions in a similar way to the engine radiator.
  • Page 467 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 Thermostatic expansion valve Serves to reduce the pressure of the refrigerant as it enters the evaporator so that it can change state and thus remove heat from the surrounding air. The expansion valve performs two basic functions: —...
  • Page 468 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 Thermostatic switch (ANTIFROST) The thermostatic switch is a safety device equipped with a sensor (1) which is inserted between the fins of the evaporator (2) where it constantly monitors the temperature.
  • Page 469 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 Evaporator WARNINGS REGARDING SERVICING AND REPAIR OF THE AIR CONDITIONING SYSTEM The cycle is completed inside the evaporator. Switching on the air conditioning system when the The refrigerant leaving the expansion valve is a low ambient temperature is low can damage the com- temperature, low pressure mixture of vapour and liq- pressor.
  • Page 470 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 REFRIGERANT RECOVERY- -RECYCLING AND 2--way pressure gauge unit, with refrigerant flow indi- EVACUATION- -CHARGING STATIONS cator and pressure gauges (1 and 2) controlling the pressure in the cylinder and at the inlet. WARNING Never under any circumstances use recovery/re- 294053, Humidity indicator (15) for checking the de-...
  • Page 471 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 Check filter connections for leaks (3) 8. Record the operation on the appropriate service report card. Refer to figure 15 and proceed as follows: 5. To check for leaks at the connections of the pre- viously replaced filter (3) open the yellow service cock (9) on the distillation cylinder (4).
  • Page 472 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 AIR CONDITIONING SYSTEM 7. Connect the blue service pipe (11) to the valve on Dehydration, recharging and refrigeration check the suction (low pressure) side of the compres- (Op. 50 200 04) sor (marked ”S”).
  • Page 473 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 3. Connect the 2 ends of the yellow (16) and blue Recycling recovered refrigerant (11) pipes with connector supplied. On completion of the recovery operation, the refrig- 4. Slowly open the cock (18--REF) and the blue erant, which has already been through an oil separa- cock (6--LOW) on the pressure gauge manifold, tion process, must now be completely decontami-...
  • Page 474 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 connect the other end (with the cock) to the red connector of the external cylinder. Note -- The circular sector of the humidity indicator (15, fig. 15) must remain green throughout the re- 13.
  • Page 475 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 with the exception of cocks (9 and 18) and that 26. Check the quantity of refrigerant in the graduated on the pipe (16). cylinder (31). 22. Check that all the cocks of the evacuation/charg- 27.
  • Page 476 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 31. Rotate the outer casing (30) so that pressure val- Refer to figure 16 and proceed as follows: ue indicated on the graduated scale corresponds 40. Pour the oil into the graduated oil meter of kit with the value shown on pressure gauge (2).
  • Page 477 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 FUNCTION TESTING OF CAB AIR CONDITION- ING SYSTEM (Op. 50 200 03) With the pressure gauges connected to the system in the manner described previously and the cocks closed, proceed as follows: 1.
  • Page 478 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 SUMMARY OF THE AIR CONDITIONING SYS- TEM CHARGING OPERATIONS Note -- The pressure readings reported below are valid for an ambient temperature of 25 °C (77 °F). — Pressure gauge readings on completion of refrig- erant recovery and recycling operation.
  • Page 479 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 — Pressure gauge readings with cocks (4 -- 10 -- 22, fig. 16) open, cylinder (31) with 2000 gr of refrig- erant, red and blue service pipes connected to tractor system, cocks (16) open, compressor off and cock (9) closed (check on vacuum meter that no pressure drops occur over a period of 5 min-...
  • Page 480 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 CHECKING FOR REFRIGERANT LEAKS USING AN ELECTRONIC LEAK DETECTOR Leak detector (294036) The leak detector 294036 is supplied in its own carry- ing case which also contains the two power supply batteries, the sensitivity test phial and an ear plug connection for audible leak indication.
  • Page 481 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 AIR CONDITIONING SYSTEM AIR CONDITIONING SYSTEM FAULT DIAGNO- SIS SUMMARY Testing for leaks with leak detector 294036 and There are three main ways in which the system can elimination of leaks (Op.
  • Page 482 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 MAINTENANCE OF THE AIR CONDITIONING SYSTEM Note --Carry out the same checks on the EVAPORA- TOR (9) and CONDENSER (5). At the start of the season in which the system will be used, check that the system is functioning correctly and efficiently efficiency.
  • Page 483 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 AIR CONDITIONING AND HEATING PIPES Replacement (Op. 50 200 04 - - 50 206 56 - - 50 206 51- - 50 206 66 - - 50 200 40 - - 50 200 60) DANGER When recovering refrigerant from the system adhere to the safety rules on page 2.
  • Page 484 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 6. Remove plate fastening screws and take of the plate (1) TRE0155A 7. Remove A/C assembly fastening screws (1). TRE0255A 8. Remove A/C inlet and outlet pipes (1). Remove front retaining screws (2).
  • Page 485 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 10. Remove the bracket (1) that secures the pipe. TRE0227A 11. Remove all electric connectors and take off the A/C assembly (1) completely. TRE0228A 12. A/C assembly is shown in fig 36. 13.
  • Page 486 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 RECEIVER- -DRIER Replacement (Op. 50 200 04 - - 50 200 74) DANGER When recovering the refrigerant from the system ad- here to the safety instructions on page 2. 1.
  • Page 487 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 7. Remove the screw (1) securing the receiver--dri- er band clamp. 24890 8. Recover the complete receiver--drier (1). 24891 To refit proceed as follows: — Replace the receiver--drier in the support clamp. —...
  • Page 488 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 CONDENSER Replacement (Op. 50 200 04 - - 50 200 72) DANGER Recover the refrigerant from the system adhering to the safety instructions on page 2. 1. Disconnect the negative battery lead. 2.
  • Page 489 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 COMPRESSOR Removal- -Refitting (Op. 50 200 04 - - 50 200 26) DANGER Recover the refrigerant from the system adhering to the safety instructions reported on page 2. 1.
  • Page 490 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 8. Loosen the bolt (1) securing the compressor to the engine and remove the drive belt from the pulleys. 24906 9. Remove the compressor bolt (1) and recover the compressor.
  • Page 491 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 COMPRESSOR DRIVE BELT Tension adjustment (Op. 50 200 10) The tension and condition of the belt transmitting 12÷13mm drive from the engine to the compressor is particular- ly important as regards the correct operation of the air conditioning system.
  • Page 492 SECTION 50 - - CAB AIR CONDITIONING SYSTEM - - CHAPTER 1 603.54.471.00 - - 11 - - 2004...
  • Page 493 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 1 SECTION 55 − ELECTRICAL SYSTEM Chapter 1 − INSTRUMENTS CONTENTS Description Page Analogue instruments Introduction ............. Transmitter and switch .
  • Page 494 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 1 Condition Indicator 1 − Left direction indicator Flashing (green) 2 − Side ligts Fixed (green) 3 − Main beam headlights Fixed (blue) 4 − Water in fuel Fixed (red) 5 − Air filter blocked Fixed (amber) 6 −...
  • Page 495 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 1 Proofmeter (Fig. 4). Engine speed indicator and chronograph with a six figure hourmeter. The figures on black background count hours of work done and the figure on red background (far right) shows tenths of an hour. The yellow and white sectors indicate the engine speed at which optimum PTO performance is obtai- TRE0076A...
  • Page 496 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 1 TRANSMITTERS, SENSORS AND SWITCHES MAIN FUSE BOX The tractors fuses relays are housed under a plastic cover. BATTERY The tractors are fitted with maintenance−free batteries. Keep the top part clean and dry. Check that the level of electrolyte reaches the top mark and never falls below the lower mark.
  • Page 497 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 1 TRANSMITTERS AND SWITCHES 26608 603.54.471.00 − 11 − 2004...
  • Page 498 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 1 TRANSMITTERS AND SWITCHES 26608 603.54.471.00 − 11 − 2004...
  • Page 499 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 1 TRANSMITTERS AND SWITCHES 26608 603.54.471.00 − 11 − 2004...
  • Page 500 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 1 603.54.471.00 − 11 − 2004...
  • Page 501 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 2 SECTION 55 - - ELECTRICAL SYSTEM Chapter 2 - - COMPONENTS CONTENTS Section Description ............. Page 55 500 Introduction...
  • Page 502 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 2 1. Starter switch. 2. Thermostarter. 3. Hazard warning lights switch. 4. Cigar lighter TRE0018B 1. Rotating beacon switch (tractors without cab). TRE0020A IN- -CAB CONTROLS Fender--mounted controls 1. Windscreen washer, 2.
  • Page 503 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 2 Heating and air--conditioning controls 1. Electric fan speed control 2. Heating control 3. Air--conditioning control TRE0012B Radio TRE0077B 603.54.471.00 - - 11 - - 2004...
  • Page 504 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 2 603.54.471.00 - - 11 - - 2004...
  • Page 505 ..............55 000 TECHNICAL INFORMATION CHARACTERISTICS TD60D TD70D TD80D...
  • Page 506 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 3 DESCRIPTION AND OPERATION means of an flexible joint mechanism, makes the driving pinion engage the flywheel ring gear. The moment the pinion touches the ring gear, the plunger The starting system installed depends on the type of closes a series of contacts and powers all four field gearbox fitted on the tractor.
  • Page 507 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 3 2,5 W/R ---- 20 N 6,0 N/G 1P /Y 1Y /W 4N /R 4N /R 2,5 W/Y 2,5 W/Y 2,5 W/R 2,5 W/R 6Y /W 0,3 B/S 4N /U 15/54 58/57 2,5 W/Y MDH1908A...
  • Page 508 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 3 26628 26629 TRE0069A Fuse panel Starter motor SYSTEM TESTS STARTING SYSTEM ON TRACTOR TEST To easily and quickly trouble--shoot the starting system problems and reach conclusive results, it is recommended that you use a battery/starting tester (high discharge multimeter) with incorporated 0--20V voltmeter and 0--500 A ammeter.
  • Page 509 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 3 POWER ABSORPTION IN STARTER MOTOR CIRCUIT (Fig. 4) 1. Disconnect earth (ground) (negative) battery cable (3). 2. Disconnect positive battery cable from starter solenoid. Connect the positive ammeter point (1) to the positive battery terminal clamp and the negative point to the solenoid input terminal.
  • Page 510 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 3 RESISTANCE IN IGNITION SYSTEM CIRCUIT (VOLTAGE DROP) (Fig. 5) If there is a higher than necessary power absorp- tion, check the circuit to find the cause of the volt- age drop occurring within circuit components. IMPORTANT: Disconnect the injection pump sole- noid fuel closing wire.
  • Page 511 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 3 STARTER MOTOR REMOVAL AND RE- -INSTALLATION (Fig. 8) (Op. 55 201 50) 1. Disconnect negative battery cable. 2. Unscrew the nut and bolt (1) and remove the protection cover (2) from starter motor (3). 3.
  • Page 512 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 3 26635 Starter motor components 1. Solenoid 7. Field windings and casing 2. Solenoid bolts 8. Brush holder 3. Bolt and stud group 9. Brush plate 4. Control side support 10. Armature 5.
  • Page 513 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 3 SERVICING 7. Remove the motor casing from the armature and the control side bracket. DISASSEMBLY (Op.55 201 54) 8. Remove the control lever knuckle pin from the control side of the casing. Refer to figure 9.
  • Page 514 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 3 STARTER MOTOR TEST WITHOUT LOAD (Fig. 10) NOTE: A fully charged battery and a battery/start- ing tester (high discharge multitester) with carbon battery (variable load resistance) are needed to carry out this test. 1.
  • Page 515 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 3 3. Armature insulation can be checked by connecting ohmmeter between commutator segments and armature shaft. This reading should show infinity, in other words there should be no continuity. 4. To test there are no short circuits, use an appropriate testing device.
  • Page 516 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 3 603.54.471.00 - - 11 - - 2004...
  • Page 517 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 4 SECTION 55 - - ELECTRICAL SYSTEM Chapter 4 - - CHARGING SYSTEM CONTENTS Section Description ............. Page 55 000 Technical information...
  • Page 518 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 4 DESCRIPTION AND OPERATION ALTERNATOR DESCRIPTION Either a Magneti Marelli or a Bosch, 45 or 65 A, alternator, with external cooling fan, is fitted on all models. Stator winding is ventilated with an air conducting diaphragm in the support on the rectifier bridge side and peripheral openings in the support on the control side.
  • Page 519 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 4 26640 Alternator charging circuit 1. Ignition switch B+ Battery connection 2. Alternator charge warning light D+ Alternator charge indicator 3. Battery 4. Alternator 5. Alternator electronic voltage regulation circuit The direct current is then reintroduced into the circuit ALTERNATOR FUNCTIONING to increase current flow through the rotor field winding.
  • Page 520 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 4 26641 26642 Fan belt tensioner Fig. 3. Belt for versions without air conditioning Fig. 4. Belt for versions with air conditioning 1. Alternator 3. Belt tensioner securing nut 2. Belt tensioner 4.
  • Page 521 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 4 -- hold the belt tensioner arm (2) and move it on light goes out now, one of the alternator components the bracket to reach the correct belt tension, is malfunctioning. Carry out “ALTERNATOR COM- then tighten the securing nuts (3) to 55 Nm PONENT TESTS”...
  • Page 522 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 4 ALTERNATOR WIRE CONNECTIONS TEST See figure 5. 1. Disconnect the battery. 2. Disconnect B+ (2) and D+ (3) alternator terminals. 3. Reconnect the battery and turn the ignition key into position ON but without starting the engine. Connect a voltmeter (4) between each terminal and earth (ground) (1).
  • Page 523 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 4 If the voltmeter reading is higher than 14 V or 14.4 V, for Magneti Marelli or Bosch alternators respec- tively, the alternator regulator must be changed, as described in this section. (After installing a new regulator, carry out tests 4 and 5).
  • Page 524 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 4 (b) Ground side voltage drop test See figure 8. 1. Check the ignition key is in OFF position. 2. The circuit is the same as that described in the previous test, except that the millivoltmeter (4) is now connected between the negative battery terminal clamp and the alternator casing (negative side of casing).
  • Page 525 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 4 6. Increase resistance current load (decreasing resistance) slowly until the ammeter reads 45 or 65 A., according to the type of alternator. 7. Note the reading on the voltmeter. This must not be less than 13.6 V.
  • Page 526 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 4 REMOVAL, REASSEMBLY SERVICING (Op. 55 301 10) IMPORTANT NOTE: Before disconnecting the alternator wires, check that the ignition key is in the OFF position. REMOVING THE ALTERNATOR See figures 10 and 11. 1.
  • Page 527 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 4 26650 Alternator components Pulley retaining nut Stator Electronic voltage regulator with Pulley Rear support plate built--in brushes Cooling fan Rectifier bridge Front support plate Protection guard Rotor Firmly fix the alternator horizontally to an appropri- ate holder with internal surfaces protected with soft material.
  • Page 528 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 4 ROTOR AND REGULATOR FIELD CIRCUIT TEST The following testing devices are required: 12 volt battery ¯ multitester ¯ 2 watt test lamp. ¯ See figure 14. 1. Disconnect all alternator wires. 2.
  • Page 529 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 4 Ω 26655 CHECKING THE DIODES Disconnect the terminal wire connector (1) of the excitation diodes from the positive brush pin (Fig. 26656 Unweld stator winding terminals (2) from the recti- fier bridge (Fig.
  • Page 530 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 4 POSITIVE POWER DIODES TEST Put an ohmmeter point in contact with the positive (X) alternator terminal and the other successively with each of the three terminals (A--B--C) (Fig. 21). Repeat the three measurements after reversing the instrument point connections.
  • Page 531 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 4 DISASSEMBLY (Op. 55 301 12) Place a suitable Allen wrench in the hexagonal hole in the alternator shaft to prevent the alternator shaft from turning. With another wrench, unscrew the fan and rotor pulley fastening nut.
  • Page 532 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 4 Unscrew the screws (9) which fasten the rectifier bridge (10) to the rear support plate (8) (Fig. 28). The rectifier bridge must not be dismantled: the spare part is supplied as a complete unit. 26666 Separate the rectifier bridge (10) from the rear support plate.
  • Page 533 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 4 Check rotor inductor resistance on slip rings Put both ohmmeter points (fixed at Ω x 1 scale) in contact respectively with the slip rings (see ar- rows). The instrument should show a certain degree of resistance (Fig.
  • Page 534 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 4 RE- -INSTALLATION Check the negative (ground) battery cable is disconnected from the battery while re--installing the alternator. 1. Re--install the alternator by reversing the removal procedure. Adjust the alternator drive belt, as described previously in this chapter.
  • Page 535 • 105 Ah batteries are fitted on TD60D, TD70D, microprocessor memory. TD80D and TD90D models. The battery is Each element of the battery consists of positive and...
  • Page 536 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 5 REMOVAL AND RE- -INSTALLATION (Op. 55 301 40) REMOVAL 105 Ah and 120 Ah batteries fitted in front of the radiator (Figures 1 and 2) 1. Lift the engine hood. 2.
  • Page 537 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 5 BATTERY CHECKING AND MAINTE- Table 1 NANCE Temperature Fully charged battery RELATIVE DENSITY performance The relative density of the battery electrolyte shows 25.0 °C (77.0 °F) 100% the charge level of the battery. When the battery is --4.5 °C (23.9 °F) fully charged, the relative density of the electrolyte, at --24.0 °C (--11.2 °F)
  • Page 538 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 5 4. Avoid overcharging the battery. Excessive NORMAL CHARGING (TOP UP) charge will generate high internal heat which will 1. Charge the battery completely with a slow cause grid deterioration and water loss. battery charger at 3 to 6 amperes for the required 5.
  • Page 539 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 5 other conditions, reduce charging time Example 1: proportionally. When feasible, use the slowest Temperature below 30 °C (86 °F) charging programme for increased battery life. Battery electrolyte temperature 19 °C (66.2 °F) Densimeter reading 1.270 Subtract 11.0 x 0.004...
  • Page 540 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 5 Performance tests 4. Set the charging amperage as close as possible to 40 A. Performance tests help to understand if a battery can adequately run the engine. Voltage readings show battery condition.
  • Page 541 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 5 BATTERY PROBLEMS - - FREQUENT 5. Crystals are formed when batteries are left flat. High temperature and long periods with the CAUSES battery flat increase this condition. If a battery is left at room temperature for a week it can rarely 1.
  • Page 542 SECTION 55 - - ELECTRICAL SYSTEM - - CHAPTER 5 603.54.471.00 - - 11 - - 2004...
  • Page 543 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 SECTION 55 − ELECTRICAL SYSTEM Chapter 6 − ELECTRICAL CIRCUITS CONTENT 55 100 Content ............... Fuses and Relays .
  • Page 544 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 7.5A 7.5A TRE0087B Fuses PROTECTED CIRCUITS Amps. Main beam Dipped beam Front right and rear left side lights Front left and rear right side lights Engine shut down solenoid valve Instruments, turn signal switch, horn Hazard warning switch, fuel sedimentor Relay Hazard warning lights switch...
  • Page 545 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 FUSES AND RELAY BOX (INSIDE CAB) Fuses and protected circuits are listed below: FIG. 2 − 3 PROTECTED CIRCUITS Fuses Amps. Front windscreen wiper Windscreen washer Beacon lamp, interior lamps, radio Heater/Air Conditioning Rear wiper Working lamps switches Front worklamps...
  • Page 546 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 ELECTRICAL WIRE COLOUR CODING Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Black Á...
  • Page 547 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 KEY TO CIRCUIT SYMBOLS 15/54 58/57 Starter switch Electronic flasher Hand brake switch − Battery Relay Circuit breaker Starter motor Safety start switch Cold starting aid (thermostarter) Fuse Bulb Ground connection Solenoid valve Switch Horn Speaker...
  • Page 548 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 GENERAL DIAGRAM OF TRACTOR IN NON−CAB VERSION Starter switch system diagram Component key 1. Instrument panel connection 2. Starter switch 3. Light control lever 4. Hazard lights flasher 18. Thermostarter button 20. Front RH light 33.
  • Page 549 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 − GENERAL DIAGRAM OF TRACTOR IN NON−CAB VERSION Starter switch system diagram 3456 6Y /W 1,5 R 15/54 4N /U 10 9876 58/57 2.5 W /Y 1,5 U 1.5 U 1− − 2.0 G/W 2−...
  • Page 550 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 − GENERAL DIAGRAM OF TRACTOR IN NON−CAB VERSION Fuses and relays system diagram Component Key 1U/R 1U/W 5. Fusebox 2,5 W/R 6. Dipped beam relay − − 7. Main beam relay 8. Horn relay 20 N 6,0 N 40 A...
  • Page 551 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 − GENERAL DIAGRAM OF TRACTOR IN CAB / NON−CAB VERSION Frame system diagram Component Key 21. LH tail light 22. RH rear work lamp 23. Fuel level gauge 24. Rotating beacon 25. Seven−pole connection 26.
  • Page 552 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 GENERAL DIAGRAM OF TRACTOR IN CAB VERSION Starter switch system diagram Component Key 1. Instrument panel connection 2. Starter switch 3. Light control lever 4. Hazard lights flasher 18. Thermostarter button 20. Front RH light 33.
  • Page 553 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 − GENERAL DIAGRAM OF TRACTOR IN CAB VERSION Starter switch system diagram 3 456 6Y /W 1.5 R 15/54 4N /U 10 9 876 6.0 N 58/57 2.5 W/Y 6.0 B 1.5 U 1L G/W 6.0 Y/W 6.0 Y/W...
  • Page 554 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 − GENERAL DIAGRAM OF TRACTOR IN CAB VERSION Fuses and relays system diagram 1U /R 1U /W Component Key 2.5 W /R 21. LH tail light − − 22. RH rear work lamp 20 N 6.0 N 23.
  • Page 555 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 − GENERAL DIAGRAM OF TRACTOR IN CAB VERSION Cab system diagram Component Key 1.0 G 37. Cab relay box 1. Cab supply relay 2. Cab supply relay 3. Rear work lights relay 2.5 G 4.
  • Page 556 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 ANALOG INSTRUMENT CIRCUIT 1. LH direction indicator 9. Brake fluid level low 2. Side/tail lights 10. Parking brake 3. Dipped beam headlights 11. Right hand turn signal 4. Water in fuel 12. First trailer turn indicators 5.
  • Page 557 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 0,3 G/B − − 0,3 G/U 0,5 B 0,3 LG/Y 0,3 G/R 0,3 R/W 0,3 U/W 0,3 LG/R 0,5 U 0,3 G/W 0,3 B/S − 0,3 W/N 0,3 N/Y 0,3 W/B 0,5 G 0,3 R/K −...
  • Page 558 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 2,5 W/R −− 20 N 6,0 N/G 1P /Y 1Y /W 4N /R 4N /R 2,5 W/Y 2,5 W/Y 2,5 W/R 2,5 W/R 6Y /W 0,3 B/S 4N /U 15/54 58/57 2,5 W/Y MDH1908A START−UP CIRCUIT 2.
  • Page 559 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 0,3 G/B − − 0,3 G/U 0,5 B 0,3 LG/Y 0,3 G/R 6 Y/W 0,3 R/W 4 N/U 0,3 U/W 1,5 R 0,3 LG/R 2,5 W/Y 1,5 U 0,5 U 0,3 G/W 0,3 B/S −...
  • Page 560 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 0,3 N/Y 0,5 N/Y 0,3 LG/Y 0,5 LG/Y 0,3 R/W 0,3 U/W 0,5 R 0,3 W/B − − 0,3 G/U 0,5 G/U 0,3 G/B 0,3 R/K 0,3 LG/R 0,5 LG/R 0,3 W/N 0,5 W/N 0,5 B/S 0,3 B/S...
  • Page 561 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 1 R/B 1,5 R 1,5 G 1,0 U/W/G 2,5 P 0,5 R/B − 1,5 G/LG 1,5 G 1 U/W/S 2,5 S 2,5 W/Y 1,5 G/R 6 Y/W 4 N/R 0,5 U 6 Y/W 2,5 P 1,5 LG/N 603.54.471.00 −...
  • Page 562 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 − − 2 G/W 1 G/W 1,5 G 1,5 P/G − 0,3 G/B 1 G/B 1 G/O 1 G/R 1,5 G/R 1,5 R 2 R/B 2,5 W/R 2,5 W/Y − 0,5 W/B 0,3 W/B 0,5 W/B −...
  • Page 563 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 − − 6,0 N 20 N 0,5 LG/Y 0,5 LG/R 2,5 N 2,5 P 1,5 R/B 1,5 R 7,5A 1,5 G 1,5 Y /W 1G /W 1G /W 1G /W 2G /W 1,5 G/R 1,0 G/R 1,0 LN/W/S 1...
  • Page 564 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 0,3 G/B − − 0,3 G/U 0,5 B 0,3 LG/Y 6 Y/W 0,3 G/R 0,3 R/W 4 N/U 0,3 U/W 0,3 LG/R 1,5 R 2,5 W/Y 1,5 U 0,5 U 0,3 G/W 0,3 B/S −...
  • Page 565 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 − 0,5 LG/Y 0,5 LG/R 1,5 G/LG 1,5 G 1,5 G/LG 1,5 LG/N 0,5 R/B 1,5 LG/N 1 G/R 1 G/W 1 G/W 20 N 2,5 W/R 1,5 B 1 LN/R/S 1 R/B 1 RB 1 G/R 1 GP...
  • Page 566 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 1,5 R 1 G/N 1 G/R 1 G/W 1 R/B 1 G/P 1 G/P 1 G/P 1 G/R 1 G/W 1 R/B 1,5 R 603.54.471.00 − 11 − 2004...
  • Page 567 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 0,3 N/Y 0,5 N/Y 0,3 LG/Y 0,5 LG/Y 0,3 R/W 0,3 U/W 0,5 R 0,3 W/B − − 0,3 G/U 0,5 G/U 0,3 G/B 0,3 R/K 0,3 LG/R 0,5 LG/R 0,3 W/N 0,5 W/N 0,5 B/S 0,3 B/S...
  • Page 568 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 1 R/B 1,5 R 1,5 G 1,0 U/W/G 2,5 P 0,5 R/B − 1,5 G/LG 1,5 G 1 U/W/S 2,5 S 2,5 W/Y 1,5 G/R 6 Y/W 4 N/R 0,5 U 6 Y/W 2,5 P 1,5 LG/N 603.54.471.00 −...
  • Page 569 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 − − 2 G/W 1 G/W 1,5 G 1,5 P/G − 0,3 G/B 1 G/B 1 G/O 1 G/R 1,5 G/R 1,5 R 2 R/B 2,5 W/R 2,5 W/Y − 0,5 W/B 0,3 W/B 0,5 W/B −...
  • Page 570 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 − − 10 N 20 N 80A 6.0 N 6Y /W 1.5 G 1.5 Y /W 1.0 G 1.5 U /L G 7,5A 7,5A 10A 1.5 B 6Y /W 15/54 58/57 6Y /N 6Y /N 1.5 W/LG 1.5 R...
  • Page 571 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 20 N 2,5 W/R 6 Y/W 4 N/U 1,5 R 2,5 W/Y 1,5 U 1,5 R/LG 1,5 R/LG 1 R/W 1 R/W 1,5 W/LG 1,5 V/LG 48−1 1,5 P/G 1,5 P/R 1 LG/B 48−2 1 LG 1 LG/B...
  • Page 572 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 1 R/B 1,5 R 1,5 G 1,0 U/W/G 2,5 P 0,5 R/B − 1,5 G/LG 1,5 G 1 U/W/S 2,5 S 2,5 W/Y 1,5 G/R 6 Y/W 4 N/R 0,5 U 6 Y/W 2,5 P 1,5 LG/N 603.54.471.00 −...
  • Page 573 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 6 Y/W 1 LG/W 1,5 R 2,5 Y/W 6 Y/W 1,5 UL/G 1,5 UL/G 1,5 W/LG 1,5 R/LG 1,5 R/G 603.54.471.00 − 11 − 2004...
  • Page 574 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 −− 6,0 N 20 N 1G /P 1G /P 1G /P 1.5 P/W 1.5 P/W 1.5 B 4.0 Y /W 4.0 P/W 1,0 G /P 1.5 G 1.5 G 1.0 G/O 1.0 G/O 1,0 B 1G /P 1G /P...
  • Page 575 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 0,3 G/B − − 0,3 G/U 0,5 B 0,3 LG/Y 6 Y/W 0,3 G/R 0,3 R/W 4 N/U 0,3 U/W 0,3 LG/R 1,5 R 2,5 W/Y 1,5 U 0,5 U 0,3 G/W 0,3 B/S −...
  • Page 576 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 1,5 R 1 G/N 1,5 G 1 G/P 1 G/W 1 G/P 6 Y/W 4 N/R 0,5 U 6 Y/W 2,5 P 1,5 LG/N 1 G/P 1 G/P 1 G/R 1 G/W 1 R/B 1,5 R 603.54.471.00 −...
  • Page 577 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 0,3 N/Y 0,5 N/Y 0,3 LG/Y 0,5 LG/Y 0,3 R/W 0,3 U/W 0,5 R 0,3 W/B − − 0,3 G/U 0,5 G/U 0,3 G/B 0,3 R/K 0,3 LG/R 0,5 LG/R 0,3 W/N 0,5 W/N 0,5 B/S 0,3 B/S...
  • Page 578 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 − − 2 G/W 1 G/W 1,5 G 1,5 P/G − 0,3 G/B 1 G/B 1 G/O 1 G/R 1,5 G/R 1,5 R 2 R/B 2,5 W/R 2,5 W/Y − 0,5 W/B 0,3 W/B 0,5 W/B −...
  • Page 579 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 −− 6,0N 1LG/W 1LG/W 1,5Y/W 1,5G 6,0N 6,0Y/W 1LG/W 1LG/W 6Y/W 6,0Y/W 6,0Y/W 15/ 54 58/ 57 1,5R 1,5R MDH1910A HEATING AND AIR−CONDITIONING SYSTEM CIRCUIT 2. Starter switch 57. (8 pin) connection 5.
  • Page 580 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 20 N 6 Y/W 2,5 W/R 4 N/U 1,5 R 2,5 W/Y 1,5 U 6 Y/W 1 LG/W 2,5 B 2,5 G 1 R/B 1,5 R 1,5 G 1,0 U/W/G 2,5 P 0,5 R/B −...
  • Page 581 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 6 Y/W 4 N/R 0,5 U 6 Y/W 2,5 P 1,5 LG/N 2,5 Y/W 6 Y/W 1 LG/W 1 LG/W 6 Y/W 6 Y/W 1,5 R 2,5 Y/W 603.54.471.00 − 11 − 2004...
  • Page 582 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 −− 20 N 6,0N 1,5R 1,5R 1,5R 1,5R 1,5R 1,5R 15/54 58/57 MDH1907A WORK LAMP (WITHOUT CAB) CIRCUIT 2. Starter switch 35. Main fuse 5. Fusebox 56. Black (15 pin) connection 11. Battery 57.
  • Page 583 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 20 N 2,5 W/R 6 Y/W 4 N/U 1,5 R 2,5 W/Y 1,5 R 1 G/N 1 G/N 1 G/W 1 G/P 1 R/B 1,5 R 1,5 G 1,0 U/W/G 2,5 P 0,5 R/B −...
  • Page 584 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 6 Y/W 4 N/R 0,5 U 1 G/P 6 Y/W 2,5 P 1 G/W 1,5 LG/N 1,5 R − − 2 G/W 1 G/W 1,5 G 1,5 P/G 0,3 G/B 1 G/B 1 G/O 1,5 G/R 1 G/R...
  • Page 585 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 − − 20 N 6.0 N 6.0 N 6.0 Y /W 1.5 G 1.5 Y /W 6.0 N 6.0 Y /W 25A 15A 6Y /W 15/54 58/57 6.0 Y /W 6.0 Y /W 2 6.0 Y /W 6.0 Y /W 1.5 R...
  • Page 586 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 20 N 2,5 W/R 6 Y/W 4 N/U 1,5 R 2,5 W/Y 1 R/W 1 R/W 1 G/N 1,5 P/G 1,5 P/R 1 LG/B 1 LG 603.54.471.00 − 11 − 2004...
  • Page 587 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 1 R/B 1,5 R 1,5 G 1,0 U/W/G 2,5 P 0,5 R/B − 1,5 G/LG 1,5 G 1 U/W/S 2,5 S 2,5 W/Y 1,5 G/R 6 Y/W 4 N/R 0,5 U 6 Y/W 2,5 P 1,5 LG/N 603.54.471.00 −...
  • Page 588 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 2,5 Y/W 6 Y/W 1 LG/W 1 LG/W 6 Y/W 6 Y/W 1,5 R 2,5 Y/W 603.54.471.00 − 11 − 2004...
  • Page 589 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 20 N 1,0B 1,0B 1,5P/W 2,5 U/W 2,5 U/W 2,0 U/R 2,0 U/R 1.5 R 1,5 R 1,5 R/B 1,5 R 7,5A 4,0 P/W 4,0 P/W 2,5 Y/W 2,5 S 1,5 R 1.5R 2R /B 2R/B...
  • Page 590 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 0,3 G/B − − 0,3 G/U 0,5 B 0,3 LG/Y 6 Y/W 0,3 G/R 0,3 R/W 4 N/U 0,3 U/W 0,3 LG/R 1,5 R 2,5 W/Y 1,5 U 0,5 U 0,3 G/W 0,3 B/S −...
  • Page 591 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 − 20 N 1,5 G/LG 1,5 G 2,5 W/R 0,5 R/B 1,5 LG/N 1 G/R 1 G/W 1 RB 1 G/W 1 G/R 1 GP 1,5 B 1 LN/R/S 1 R/B 1U/R 1 G/P 1 LN/W/S 1U/W...
  • Page 592 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 2,5 P 1,5 R 0,5 R 1 G/N 2,5 B 1 G/W 1 G/P 1 G/W 1 R/B 0,3 N/Y 0,5 N/Y 0,3 LG/Y 0,5 LG/Y 0,3 R/W 0,3 U/W 0,5 R 0,3 W/B −...
  • Page 593 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 1 R/B 1,5 R 1,5 G 1,0 U/W/G 2,5 P 0,5 R/B − 1,5 G/LG 1,5 G 1 U/W/S 2,5 S 2,5 W/Y 1,5 G/R 6 Y/W 4 N/R 0,5 U 6 Y/W 2,5 P 1,5 LG/N 603.54.471.00 −...
  • Page 594 SECTION 55 − ELECTRICAL SYSTEM − CHAPTER 6 − − 2 G/W 1 G/W 1,5 G 1,5 P/G 0,3 G/B 1 G/B 1 G/O 1,5 G/R 1 G/R 1,5 R 2 R/B 2,5 W/R 2,5 W/Y − 0,5 W/B 0,3 W/B 0,5 W/B 1 G/P 1 G/R...
  • Page 595 SECTION 90 - - CAB - - CHAPTER 1 SECTION 90 - - CAB Chapter 1 - - Removing parts CONTENTS Section Description Page 90 160 42 - - 43 90 120 10 Control levers, seat and electrical controls -- disassembly and reassembly .
  • Page 596 SECTION 90 - - CAB - - CHAPTER 1 CONTROL LEVERS, SEAT, ELECTRICAL CONTROLS Disassembly- -Assembly (Op. 90 160 43- -90 160 42- -90 120 10) 1. Disconnect the negative cable from the battery. TRE0247A 2. Take out the four securing screws (1) and re- move the covering of the control panel.
  • Page 597 SECTION 90 - - CAB - - CHAPTER 1 6. Remove the screws (1) on rear panel TRE0019A 7. Remove the LH panel (1). TRE0145A 8. Remove the screws (1) of the RH panel retaining elements. TRE0048A 9. Remove the screws (1) from the RH fenders. TRE0147A 603.54.471.00 - - 11 - - 2004...
  • Page 598 SECTION 90 - - CAB - - CHAPTER 1 10. Remove the screws (1) from the rear panel TRE0230A 11. Remove the LH panel (1). TRE0145A 12. Remove the the hand throttle lever (1). 2265 TRE0141A 13. Remove the retaining nut (1) and take off the steering wheel.
  • Page 599 SECTION 90 - - CAB - - CHAPTER 1 14. Remove the retaining bolts on the control panel and detach the electrical connector. Remove the rev counter and the control panel (1) TRE0026A 15. Unscrew the retaining screw (2) on the side of the instrument console (rear hood) (1).
  • Page 600 SECTION 90 - - CAB - - CHAPTER 1 18. Remove the screws (1) securing the knobs to the control levers and remove the knobs. TRE0230A 19. Unscrew the four screws (1) securing the lever panel. TRE0039A 20. Unscrew the lift--o--matic switch retaining screws (1).
  • Page 601 SECTION 90 - - CAB - - CHAPTER 1 21. Remove remove the protective cover and the screws (1) securing the hydraulic control lever support (2) to the platform. TRE0154A 22. Remove the screws (1) holding the auxiliary con- trol valves in place. TRE0041A 23.
  • Page 602 SECTION 90 - - CAB - - CHAPTER 1 25. Unscrew the control lever retaining screws (1) and remove the control levers. TRE0179A 26. Remove the PTO clutch lever support securing screws (1). Disconnect the PTO control lever from the patform. TRE0171A 27.
  • Page 603 SECTION 90 - - CAB - - CHAPTER 1 29. To refit, proceed as follows: — Refit the PTO clutch lever and PTO synchro- nised control lever support. — Refit the transmission control levers. — Refit the LIFT--O--MATIC cover, securing it to the RH panel with the three screws.
  • Page 604 SECTION 90 - - CAB - - CHAPTER 1 REAR WINDOW, HANDLE AND LOCK Disassembly- -Assembly (Op. 90 156 52) 1. Disconnect the negative cable from the battery. 2. Remove the handle (2), the seals and the threaded pin (1). TRE0151A 3.
  • Page 605 SECTION 90 - - CAB - - CHAPTER 1 LOCK AND EXTERIOR HANDLE LH DOOR Disassembly- -Assembly (Op. 90 154 30) 1. Disconnect the negative cable from the battery. 2. Unscrew the three screws (1) securing the interior lock cover (2). TRE0239A 3.
  • Page 606 SECTION 90 - - CAB - - CHAPTER 1 LH DOOR Disassembly- -Assembly (Op. 90 154 10) 1. Disconnect the negative cable from the battery. TRE0247A 2. Remove the door closure (gas strut). TRE0238A 3. From inside the cab, unscrew the two top screws (1) securing the door hinge.
  • Page 607 SECTION 90 - - CAB - - CHAPTER 1 FRONT WIPER MOTOR Disassembly- -Assembly (Op. 90 160 60 e 55 518 52) 1. Disconnect the negative cable from the battery. TRE0247A 2. Remove the roof securing screws. TRE0124A 3. Remove the cap top cover (1) and disconnect the electrical connection from the front wiper motor.
  • Page 608 SECTION 90 - - CAB - - CHAPTER 1 5. Unscrew the small nut (1) securing the wiper mo- tor unit. 24918 6. Unscrew the large nut and remove the wiper mo- tor unit (1) from top the cab. To reinstall, proceed as follows: —...
  • Page 609 SECTION 90 - - CAB - - CHAPTER 1 CAB WINDOWS Replacing bonded cab windows (Op. 90 154 24 - - 90 156 10 - - 90 156 14 - - 90 156 28) Removing window Proceed as follows. WARNING Handle all parts with great caution.
  • Page 610 SECTION 90 - - CAB - - CHAPTER 1 Refitting the window Proceed as follows. 1. Make sure that the contact area between the glass and the metal frame in the cab is perfectly clean. 2. Using a clean tissue, apply the activator (VP 04604 GURIT ESSEX) around the edge of the glass, where contact will be made with the metal frame.

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