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HATTAT A90 Service Manual

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Summary of Contents for HATTAT A90

  • Page 1 Service Manual A100 A110...
  • Page 3 General Engine Electrical System Power Service Manual Transmision Brake System Front Axle & Steering A100 A110 Frame & Wheels Cab & Shields Hydraulics Hattat Tarım April, 2011 Çerkezköy Aletler Tools...
  • Page 5 10. General 11.Layout 12. Maintenance...
  • Page 6 To the reader The Service Manual for the HATTAT A90, A100, A110 tractors is intended to be a practical reference source to be used in workshop. The repair instructions in the manual are based on methods which have been worked out in practice during normal workshop conditions and which are based on the use of special tools from the manufacturer when stated in the instructions.
  • Page 7 Model Page 10. General A90-A100-A110 Layout of Service Manual 1. Division into groups The manual is divided into groups (10--100) which are based on the make--up of the tractor. The groups are listed on the firstindexf. example. 10. General 20. Engine, fuel and cooling systems 30.
  • Page 8 Model Page 41. Clutch A90-A100- A110 5. Additions and amendments of the service manual New and up--dated pages will be continuously added to the service manual. The new pages should be inserted as indicated by the code: the first digit (also the first digit on the index leaf) indicates the group: -- the two first digits indicate the component or sub--group.
  • Page 9 Model Page 10. General A90-A100-A110...
  • Page 10 Model Page 10. General A90-A100-A110 Direction indicator flashers and horn (3) Code designations in the Service Manual 10. General Light switch (4) 11 General, lay out Switch for windscreen was− her (5) Switch for windscreen wiper (6) 12 Maintenance Instrument panel (2)
  • Page 11 Model Page 10. General A90-A100-A110 60 Front axle and steering system 90 Working Hydraulics, power lift 61. Steering System 91.Technical specialities – Valves – Mechanicisms and Steering System Working Principles Measurement of the steering system, oil pressures Reconditioning steering valve...
  • Page 12 Model Page 10. General A90-A100-A110 General instructions for repairs Outer oil seals The Service Manual contains instructions for changing all outer oil seals, (e.g. oil seals on the PTO shaft end, on the output shaft to the front wheel drive and on the pinion shaft on the powered front axle, and so on).
  • Page 13 Model Page 10. General A90-A100-A110 Tightening toorques Nm Quality, surface treatment, material and so on Dim. 10.9 12.9 tol.± tol.± tol.± tol.± tol.± Lubr. Lubr. Lubr. 1030 1250 1100 1200 1500 1800 1500 1300 1600 2040 2500 Table 1. Tightening torques, metric standard thread (ISO)
  • Page 14 Model Page 10. General A90-A100-A110 Conversion table for common units Quantities and units……………………………………………………………………………… Conversion factors Overall and detail dimensions millimetres (mm) ……………………………………………….. 100 mm=3,94 inches 1 inch=25,4 mm Short distances e.g. turning circles metres (m) ……………………………………………….. 1 m=3,28 ft 1 ft=0,305 m Travel distances kilometres ………………………………………………………………………1 km=0,62 mile...
  • Page 15 Model Page 10. General A90-A100-A110 Maintenance Lubrication of points provided with grease Note! Detailed maintenance procedures are given in the nipples Operator’s Manual. -- Always clean the grease nipples before applying the When servicing: grease gun. -- Pump in grease to the nipples until clean grease is -- Always stop the engine before doing any servicing work.
  • Page 16 Model Page 10. General A90-A100-A110 Maintenance daily/weekly Weekly/every 50 hours Daily/every 10 hours 4. Lubricate front axle and steering nipples 1. Check engine oil level 4--wheel drive 2. Check coolant level -- universal joints 3. Clean draining hose -- front axle mountings -- steering knuckles 5.
  • Page 17 Model Page 10. General A90-A100-A110 Every 250 hours Every 1000 hours/yearly 13. Clean heating system air filter. Clean air filter of roof 29. Change oil in hydraulic system fan. 30. Change oil in power transmission 31. Change oil in differential, 4--wheel drive 14.
  • Page 18 (All volumes are incl. of filters) Volume when Part of machine SAE / Viscocity API grade changing l 10W- 40 API CF- 4 Engine A90, A100, A110 15W- 40 Hydraulic system Tellus 46 ISO HM Valtra HT 200 Power Transmission API GL-4 10W- 30...
  • Page 19 Page 10. General A90-A100-A110 Grease Always use the following greases in Hattat tractors. Each point requires it own type of grease. Universal grease Lithium − based universal grease. Is suitable for greasing all heavy machines. − 30° ... +130° C Universal grease of high quality, lithium based grease for vehicle use.
  • Page 21 20. Engine 20. Engine...

  • Page 22: Table Of Contents

    Model Page 20. Engine A90-A100-A110 Table of Contents Specifications Section Engine Design ....................4 Fuel Injection Lines .................... 4 Fuel Injection Pump ................... 4 Fuel Injectors ...................... 5 Fuel Transfer Pump ..........………………………………… 5 Lifter Group ......................6 Rocker Shaft ....................... 6 Valve Mechanism Cover ..................
  • Page 23 20. Engine Model Page A90-A100-A110 Important Safety Information Most accidents that involve product operation, maintenance and repair are caused by failure to observe basic safety rules or precautions. An accident can often be avoided by recognizing potentially hazardous situations before an accident occurs. A person must be alert to potential hazards. This person should also have the necessary training, skills and tools to perform these functions properly.
  • Page 24 Model Page 20. Engine A90-A100-A110 A90 - 1104D-44T A100 - A110 1104D-44TA A100 A110 Power rating 60.5 KW / 2200 rpm 68 KW / 2200 rpm 74.9 KW / 2200 rpm Maximum Torgue 345 Nm / 1400 rpm 393 Nm / 1400 rpm...

  • Page 25: Specifications Section Engine Design

    Model Page 20. Engine A90-A100-A110 Specifications Section Fuel Injection Lines Engine Design Illustration 1 Cylinder and valve location (A) Inlet valve Illustration 2 (B) Exhaust valve Typical example (1) Tighten the union nuts for the fuel injector nozzles Bore ......... 105 mm (4.133 inch) to the following torque.

  • Page 26: Fuel Injectors

    Model Page 20. Engine A90-A100-A110 to the following torque....35 N·m (26 lb ft) (1) O-ring (2) Locking screw The fuel injector should be tested at the pressure in (3) Washer table 1. Locking the shaft Loosen locking screw (2) and move the washer Leakage in 10 seconds .........

  • Page 27: Lifter Group

    20. Engine Model Page A90-A100-A110 and work toward the outside. Tighten the screws Lifter Group to the following torque....35 N·m (26 lb ft) (7) Rocker shaft Diameter of the rocker shaft ........24.962 to 24.987 mm (0.9828 to 0.9837 inch)
  • Page 28 20. Engine Model Page A90-A100-A110 The load for the installed valve springs ..335 N Naturally aspirated engines .... 0.55 to (75 lb) 0.81mm Turbocharged engines (0.0217 to 0.0319 inch) The installed length of the inlet valve springs (high ratings) ....35.17 mm (1.3846 inch) Service limit ......

  • Page 29: Cylinder Head

    20. Engine Model Page A90-A100-A110 Illustration 11 Recess for the valve seat insert (10) Machine the recess in the head for valve seat inserts to the following dimensions. Illustration 12 The tightening sequence Recess for Inlet Valve Seat for Naturally Aspirated...

  • Page 30: Turbocharger

    Model Page 20. Engine A90-A100-A110 IIIustration14 Table 4 Maximum Permissible Dimesion Distortion Width (A) 0.03 mm (0.0012 inch) Length (B) 0.05 mm (0.0019 inch) Diagonal Line (C) 0.05 mm (0.0019 inch) Turbocharger Illustration 15 Typical turbocharger (1) Actuator rod (2) Actuator (3) Turbocharger (4) Tighten the nuts to the following torque.

  • Page 31: Exhaust Manifold

    Model Page 20. Engine A90-A100-A110 Table 5 Exhaust Manifold The part number The pressure for the for the wastegate turbocharger 138 ± 3 kPa 2674A835 (20.0155 ± 0.4351 psi) 123 ± 3 kPa 2674A841 (17.8399 ± 0.4351 psi) 138 ± 3 kPa 2674A843 (20.0155 ±...
  • Page 32 Model Page 20. Engine A90-A100-A110 (1) End play of a new camshaft ..0.10 to 0.55 mm (0.004 to 0.022 inch) Maximum permissible end play of a worn camshaft ......... 0.60 mm (0.023 inch) Illustration 18 Typical camshaft (2) Bolt Tighten the bolt to the following torque.

  • Page 33: Engine Oil Filter

    Model Page 20. Engine A90-A100-A110 Note: There may be two lobes on the camshaft. Engine Oil Fitler Refer to illustration 19. The surface between the lobes may not return to the radius of the base circle. Using a micrometer to measure the diameter of the base circle may give a inaccurate result.

  • Page 34: Engine Oil Cooler

    Model Page 20. Engine A90-A100-A110 Engine Oil Cooler Illustration 22 Typical example Illustration 23 Typical example (1) Joint (2) Oil cooler (3) Housing (4) Setscrew (5) Seal (6) Setscrew (7) Setscrew (3) Setscrew Tighten the setscrews to the following torque........22 N·m (16 lb ft)

  • Page 35: Engine Oil Pump

    Model Page 20. Engine A90-A100-A110 Engine Oil Pump Inner rotor (2) Clearance of inner rotor to outer Engines with Balancer Group rotor ........0.050 to 0.200 mm (0.0020 to 0.0079 inch) Type ......Gear-driven differential rotor Number of lobes Inner rotor ............6 Outer rotor ............
  • Page 36 Model Page 20. Engine A90-A100-A110 Illustration 30 The oil pump (1) Clearance of the outer rotor to the body ........0.152 to 0.330 mm (0.0059 to 0.0129 inch) Illustration 29 Idler gear and pump gear Note: Replace the idler gear bolt (5) and the nut for the oil pump gear (6).

  • Page 37: Engine Oil Pressure

    Model Page 20. Engine A90-A100-A110 Engine Oil Pressure The minimum oil pressure at the maximum engine speed and at normal operating temperature is the following value........ 280 kPa (41 psi) Engine Oil Bypass Valve Installed in the Oil Pump...

  • Page 38: Engine Oil Pan

    Model Page 20. Engine A90-A100-A110 Engine Oil Pan Front sealant Illustration 39 Typical example Illustration 37 (1) Tighten the four front bolts in position (X) to the Applying sealant following torque......22 N·m (16 lb ft) If the gasket that is between the front housing and...

  • Page 39: Breather Canister

    Model Page 20. Engine A90-A100-A110 Tighten the screws for the cover plate with a composite valve mechanism cover to the Breather Canister following torque....1.3 N·m (11.5 lb in) (4) Diaphragm (5) Cap (6) Spring Illustration 41 Illustration 42...

  • Page 40: Water Temperature Regulator And Housing

    Model Page 20. Engine A90-A100-A110 Water Temperature Regulator and Housing torque..........22 N·m (16 lb ft) Cylinder Block Illustration 43 Typical example Note: Apply Tooling (A) to the O-ring (4) in order to install the water temperature regulator housing (2).

  • Page 41: Crankshaft

    Model Page 20. Engine A90-A100-A110 Use the following procedure in order to install the Crankshaft main bearing cap bolts: 1. Apply clean engine oil to the threads of the main bearing cap bolts. 2. Put the main bearing caps in the correct position that is indicated by a number on the top of the main bearing cap.
  • Page 42 20. Engine Model Page A90-A100-A110 Illustration 48 Note: Refer to illustration 48 in order to use table 11. Table 11 The undersize diameter of the Crankshaft Journals NUMBER 0.25 mm (0.010 inch) 0.51 mm (0.020 inch) 0.76 mm (0.030 inch) 75.905 to 75.926 mm...

  • Page 43: Crankshaft Seals

    Model Page 20. Engine A90-A100-A110 Table 12 Journal Excessive run out Mounting 0.08 mm (0.0031 inch) 0.15 mm (0.0059 inch) 0.08 mm (0.0031 inch) Mounting Refer to Specifications, ‘Connecting Rod Bearing Journal’ for more information on the connecting rod bearing journals and connecting rod bearings.

  • Page 44: Main Bearing Journal

    Model Page 20. Engine A90-A100-A110 Main Bearing Journal Connecting Rod Refer to Specifications, ‘Crankshaft’ for information on the undersize main bearing journals, and information on the width of main bearing journals. The original size of the main bearing journal ........76.159 to 76.180 mm (2.9984 to 2.9992 inch)
  • Page 45 20. Engine Model Page A90-A100-A110 Illustration 52 Alignment of the bearing shell Note: The bearing shell for the connecting rod must be aligned equally from both ends of the connecting rod. Refer to (A) in figure 52. Refer to Disassembly and Assembly for information on the alignment tool.

  • Page 46: Piston And Rings

    Model Page 20. Engine A90-A100-A110 Connecting rods are color coded. The color code The shape of the intermediate compression is a reference for the length (Y) of the connecting ring ......Keystone with a barrel face rod. Refer to table 15 for the different lengths of Width of the top compression ring ....

  • Page 47: Piston Cooling Jet

    20. Engine Model Page A90-A100-A110 Piston Cooling Jet (3) Oil control ring Shape of oil control ring .... a two-piece coil that is spring loaded Width of oil control ring for naturally aspirated engines ........3.47 to 3.49 mm (0.1366 to 0.1374 inch) Width of oil control ring for turbocharged engines ........

  • Page 48: Front Housing And Covers

    20. Engine Model Page A90-A100-A110 1. Insert rod (3) into the end of the piston cooling jet (2). Rod (3) has a diameter of 1.70 mm (0.067 inch). Rod (3) must protrude out of the top of the cylinder block.
  • Page 49 20. Engine Model Page A90-A100-A110 (1) Fuel injection pump drive gear Tighten the nut to the following torque..24 N·m Maximum permissible end play .... 0.38 mm (18 lb ft) (0.015 inch) Release the lock on the fuel injection pump shaft.

  • Page 50: Flywheel

    Model Page 20. Engine A90-A100-A110 Flywheel Backlash between the oil pump idler gear (5) and the crankshaft gear (4) ..0.095 to 0.160 mm (0.0037 to 0.0063 inch) Backlash between the idler gear (3) and the crankshaft gear (4) ....0.064 to 0.124 mm (0.0025 to 0.0049 inch)

  • Page 51: Flywheel Housing

    20. Engine Model Page A90-A100-A110 Flywheel Housing Crankshaft Pulley Illustration 65 A standard pulley (1) Tighten the three bolts for the crankshaft pulley to the following torque..... 115 N·m (85 lb ft) Note: Recheck the torque of the bolts (1) once.

  • Page 52: Fan Drive

    Model Page 20. Engine A90-A100-A110 Crankshaft Pulley for the Poly (1) T Mark V-Belt (2) Alignment mark Note: The marks (1 and 2) on the pulley must be vertical when the pulley is installed on the engine. Number one piston of the engine must be at top dead center.

  • Page 53: Engine Lifting Bracket

    20. Engine Model Page A90-A100-A110 Engine Lifting Bracket The 12 Volt and 24 Volt Iskra Alternator All engines are equipped with two engine lifting brackets. 12 volt output Tighten the two bolts on each engine lifting bracket to the following torque. .. 44 N·m (32 lb ft) Two alternators are available.

  • Page 54: Starter Motor

    Model Page 20. Engine A90-A100-A110 Starter Motor 24 Volt Starting Motor Illustration 71 The 24 volt starting motor which shows the electrical connections (1) Tighten the negative terminal nut to the following torque........16 N·m (12 lb ft) (2) Tighten the positive terminal nut to the following torque.

  • Page 55: Glow Plugs

    Model Page 20. Engine A90-A100-A110 Glow Plugs Illustration 73 Typical example (1) Tighten the glow plugs (3) in the cylinder head to the following torque....15 N·m (11 lb ft) Tighten the nuts (2) for the bus bar (1) that is installed on top of the glow plugs to the following torque..........
  • Page 57 31. General 30. Electrical system 32. Electric system...
  • Page 58 Model Page 31. General A90-A100-A110 Content 31 Electrical system in general: Technical data, technical specifications, training material General ………………………………………………………………………………………………….. Safety precautions for the electrical system …………………………………………………………. Alternator ………………………………………………………………………………………………… Battery checks and maintenance ………………………………………………………………………...

  • Page 59: General

    Model Page 31. General A90-A100-A110 General Tractors have 12 V electrical system (negative earthing). Battery is fitted in the engine compartment in front of the cab. Voltage ..........

  • Page 60: Safety Precautions For The Electrical System

    Model Page 31. General A90-A100-A110 Safety precautions for the electrical system: -always connect the battery with the correct polarity disconnect the negative lead of the battery first and connect it last -disconnect the battery leads before removing the alternator remove the battery caps during charging to prevent the build...
  • Page 61 Model Page 32. Electrical System A90-A100-A110 Content 32 Electric system: Content ………………………………………………………………………………………………. 1 32 Electric system…………………………………………………………………………………… 1 With Cab Models……………………………………………………………………………………. Cabless models……………………………………………………………………………………… 4 Standard trailer socket ……………………………………………………………………………... 5 Headlight adjustment……………………………………………………………………………….. 5 Electric Diagram of Tractor ………………………………………………………………………… 6 Instrument panel ……………………………………………………………………………………. 7 Instrument panel …………………………………………………………………………………….

  • Page 62: Electric System

    Model Page 32. Electrical System A90-A100-A110...

  • Page 63: With Cab Models

    Model Page 32. Electrical System A90-A100-A110 -With Cab Models FA, FB, FC, FD Fuses that left side to right side FA1 3A Air compressor , differential , dashboard FA2 5A. Beacon lamp FA3 10A Wiper switch, automatic wiper relay FA4 25A...

  • Page 64: Cabless Models

    Model Page 32. Electrical System A90-A100-A110 Cabless models FA, FB, FC Fuses that left to right side. FA1 10A Instrument,instrument lamps, fuel gauge. FA2 15A Beacon lamp. FA3 5A FA4 15ABeam switchı,lihtning lamp. FA5 25A Indicator lights, brake lamps, 4WD, differential lock.

  • Page 65: Standard Trailer Socket

    Model Page 32. Electrical System A90-A100-A110 Standard trailer socket 1. Brake light (red) 2. LH side direction indicator (yellow) 3. Earthing (white) 4. RH side direction indicator (violet) 5. RH side parking light (brown) 6. LH side parking light (black) 7.

  • Page 66: Electric Diagram Of Tractor

    Model Page 32. Electrical System A90-A100-A110 Electric Diagram of Tractor...
  • Page 67 32. Electrical System Model Page A90-A100-A110 Instrument panel Front panel of instrument panel 1. Controls for: − direction indicator flashers − full/dipped − beam − horn 2. Fuel gauge 3. Tachometer 4. Coolant thermometer 5. Info line − instrument panel for operating hours 6.
  • Page 68 Model Page 32 .Electrical System A90-A100-A110 Clutch lever, power take − off Fuse box, open able lower panel for books Accelerator pedal Brake pedals Clutch pedal Steering adjustable system Hand accelerator lever Fuse box, place for books (5) On the openable cover there is also a place (1) for books.

  • Page 69: Instrument Panel

    Model Page 32.Electrical System A90-A100-A110 Instrument panel Front panel of instrument panel (1) . Steering wheel (1.1) Full/dipped − beam headlights Direction indicator flashers and horn (3) Headlight dipper Main beam, when pushing the lever to the outermost position away from the driver.

  • Page 70: Switch For Windscreen Was− Her (5)

    Model Page 32.Electrical System A90-A100-A110 . Switch for windscreen was− her (5) When pressing the spring returned side of the switch, the windscreen washer operates. . Switch for windscreen wiper (6) The switch has three positions. .Fuel gauge (3) Off position =the opposite side to the lens depressed The fuel level warning light (5) comes on, when about 14 l of fuel is left.

  • Page 71: Indicator Lights On Instrument Panel

    Model Page 32.Electrical System A90-A100-A110 Indicator lights on instrument panel 1. Direction indicator warning light for second trailer (green, if one of the bulbs on the combination has failed, this light will not come on) 2. Direction indicator warning light for first trailer (green, if...

  • Page 72: Infoline − Instrument Panel Operating Hour Meter (2.7)

    Model Page 32.Electrical System A90-A100-A110 Infoline − instrument panel operating hour meter (2.7) The hourmeter always shows the total number of hours worked. . Right Side panel of instrument panel (3) . Ignition switch (3.1) Starter switch positions Stop, motor...

  • Page 73: Roof Console

    Model Page 32.Electrical System A90-A100-A110 . Roof console . Roof fan (1 This fan blows air through the ventilation nozzles. . Recirculation control knob (2) On the front part of the roof console there is an adjustable control knob for air recirculation. Turning this knob clocwise progressively closes the air inlet from outside.
  • Page 75 40. Power Transmission 41. Clutch 42. Gearbox 43. Lowgear Overdrive Shuttle 44. Final gears 45. Power take--off...
  • Page 76 40. Clutch Model Page A90 - A100 - A110 Contents 41. Clutch Technical data ………………………………………………………………………………………………….. 2 Setting values ………………………………………………………………………………………………….. 2 Tightening torques …………………………………………………………………………………………….. 2 Clutch, description …………………………………………………………………………………………….. 4 Reconditioning clutch ………………………………………………………………………………………….. 7 1. Changing clutch with splitting tractor ………………………………………………………………… 7 Parting tractor at clutch …………………………………………………………………………………...

  • Page 77: Technical Data

    - A80, A90, A100 ........
  • Page 78 41. Clutch Model Page A90 – A100 – A110 Special tools Clutch A Part no Description ETV 891 211* Centring drift for PTO clutch disc ETV 892 570 Kit for adjusting clutch containing the following parts: 1. ETV 892 571 Adjusting fixture 2.

  • Page 79: Clutch, Description

    41. Clutch Model Page A90 – A100 – A110 Clutch, description At the lower end of the PTO clutch lever there is The clutch is double, dry disc clutch. The disc nearest the a switch for a control lamp on the instrument panel which...
  • Page 80 Model Page 41. Clutch A90 – A100 – A110 Figure 2. Clutch controls. Universal Grease Adjusting distance for PTO clutch control lamp switch Adjusting distance for starter interlock switch pedal fully depressed A. Screw for adjusting PTO clutch pedal free travel...
  • Page 81 Model Page 41. Clutch A90 – A100 – A110 Figure 3. Connecting sleeve 1. Universal grease 2. Extra pressure grease on splines N.B. Bolts to be secured with tab washer at arrows 3. Connecting sleve 4. Safety plate 5. Gearbox input shaft. At the front end of the shaft there is a lubricating hole.

  • Page 82: Reconditioning Clutch

    Model Page 41. Clutch A90 – A100 – A110 Reconditioning clutch 1. Changing clutch by parting tractor A. Parting tractor at clutch (see N.B. under point 11 in the following text) 1. Remove the engine hood plates. Remove the battery and the battery shelf (17 and 19 mm).

  • Page 83: Removing Fitting Clutch

    Model Page 41. Clutch A90 – A100 – A110 B. Removing fitting clutch N.B.On tractors with powered front axle: disconnect the guard for the propeller shaft (17 and 19 mm) and unscrew the threaded sleeve on the propeller shaft. N.B. Later tractors have not the threaded sleeve.

  • Page 84: Assembling Tractor At Clutch

    Model Page 41. Clutch A90 – A100 – A110 C. Assembling tractor at clutch Assembling the tractor is made easier by using two bolts (M12, l=100) as guide pins. 6. Press in the centring drift ETV 891 211 in the flywheel and fit the clutch disc on the drift (the longer part of the hub turned towards.

  • Page 85: Adjust Clutch Pedal Free Travel

    Model Page 41. Clutch A90 – A100 – A110 D. Adjust clutch pedal free travel 6. Connect the fuel lines (note position of breather and return hoses) and the rear ends of the accelerator and stop control (or on the latest models connect the stop control wire to the injection pump).

  • Page 86: Adjusting Pto Clutch Lever Free Travel

    Model Page 41. Clutch A90 – A100 – A110 E. Adjusting PTO clutch lever free travel The free travel at the top of the lever should be 30--40 mm. 1. Slacken the locking nut B. 2. Turn the adjusting bolt A until the correct free travel is achieved.

  • Page 87: Changing Clutch Without Splitting Tractor

    Model Page 41. Clutch A90 – A100 – A110 2. Changing clutch without splitting tractor A. Fitting clutch If the clutch shaft and release bearings have been removed, on machines with low gear these should be fitted before fitting the clutch.
  • Page 88 Model Page 41. Clutch A90 – A100 – A110 tighten it down into the drift threads. Carefully withdraw the drift with out rotating the handle. 10. Push in the long PTO shaft. The shaft is fully home when the distance between its rear end and the contact surface for the PTO is at least 45 mm.

  • Page 89: Reconditioning Clutch Release Bearings

    Model Page 41. Clutch A90 – A100 – A110 13. Fit the lower part of the PTO clutch lever on its shaft. sleeve and pull out the propulsion clutch bearing from the Connect the accelerator linkage and the fuel hoses. Fit the guide sleeve.

  • Page 90: Dismantling Clutch

    Model Page 41. Clutch A90 – A100 – A110 3. Changing propulsion clutch disc and adjusting clutch A. Dismantling clutch 3. Slacken the locking nuts (14 mm) for the PTO clutch levers. Check the condition of the levers for any damage resulting from wear.

  • Page 91: Assembling And Adjusting Clutch

    Model Page 41. Clutch A90 – A100 – A110 B. Assembling and adjusting clutch 1. Screw the guide pin ETV 892 582 into the clutch fixture and fit the centring sleeve ETV 892 592 on the pin. 2. Position the spacers on the fixture.
  • Page 92 Model Page 41. Clutch A90 – A100 – A110 14. Lock the adjusting nuts on the adjusting bolts. 15. Fit a 72 mm spacer sleeve (for LuK--clutch 68 mm) and shorter indicator on the guide stud in order to adjust the propulsion clutch lever.
  • Page 93 Model Page 42. Gearbox A90 – A100 – A110 Contents 42 Gearbox: Technical data, technical specifications, training material Technical data………………………………………………………………………………………………………. 1 Transmission 274…………………………………………………………………………………………………… 2 Power train (gearbox type 274) ………………………………………………………………………………….. 3 Gearbox 12+12R ………………………………………………………………………………………………….. 4 Assembling the transmission 274 in short ……………………………………………………………………… 5 Main shaft …………………………………………………………………………………………………………..

  • Page 94: Gearbox

    Model Page 42. Gearbox A90 – A100 – A110 Technical data Gears ……………………………………………………………………………….4-step, fully synchronized, operated by lever Speed ranges ……………………………………………………………………...3 ranges, operated by lever: H = high range, synchronized M = medium range, synchronized LL = creeper range, not synchronized Forward/reverse gear unit…………………………………………………………synchronized, operated by lever...
  • Page 95 Model Page 42. Gearbox A90 – A100 – A110...

  • Page 96: Power Train (Gearbox Type 274)

    Model Page 42. Gearbox A90 – A100 – A110 Power train (gearbox type 274) - Electro-hydraulic coupling of the 4WD (NB! four wheel braking); 4WD multi-disc clutch, new 4WD gearbox shaft + gear - Electro-hydraulic coupling of the differential lock...
  • Page 97 Model Page 42. Gearbox A90 – A100 – A110...

  • Page 98: Assembling The Transmission 274 In Short

    42. Gearbox A90 – A100 – A110 Gears ............4-step, fully synchronized, operated by lever Speed ranges .
  • Page 99 42. Gearbox Model Page A90 – A100 – A110...
  • Page 100 Page 42. Gearbox A90 – A100 – A110 - The main shaft is fitted with two synchromesh units. The front unit is used for selecting gears 1...4. The synchromesh units are equal and interchangeable (with exception of hubs). The mounting direction is free.
  • Page 101 Model Page 42. Gearbox A90 – A100 – A110...
  • Page 102 Model Page 42. Gearbox A90 – A100 – A110 - On tractors with a powered front axle, there is a shaft in the lower part of the gearbox which transfers the engine power to the front axle. The output shaft has ball bearings. The gear (Z42) on this shaft is in mesh with a gear on the pinion shaft.
  • Page 103 Model Page 42. Gearbox A90 – A100 – A110...
  • Page 104 Page 42. Gearbox A90 – A100 – A110 - The pinion shaft has conical roller bearings. The gears have pressure lubrication. - The pinion shaft is fitted with two synchromesh units. The front unit is used for selecting the M-group or LL group without syncro.
  • Page 105 Model Page 42. Gearbox A90 – A100 – A110...
  • Page 106 Model Page 42. Gearbox A90 – A100 – A110 1) Adjusting bearing clearance: - place a sufficient number of shims under the end cover to give the bearings a definite clearance and tighten down the cover - Measure the bearing clearance with a dial gauge.

  • Page 107: Pinion Shaft

    Model Page 42. Gearbox A90 – A100 – A110 Synchronization All gears (except LL) are synchronized. The synchromesh units on the main shaft and pinion shaft are of different Synchromesh unit function (pinion shaft) design. On the main shaft the synchronizing cones have locking lugs and wire springs, whilst locking lugs, ball studs and coil springs are used on the pinion shaft.
  • Page 108 Model Page 42. Gearbox A90 – A100 – A110 Synchromesh unit function (main shaft) The function is the same as for the pinion shaft synchromesh unit. The sliding coupling presses the syncromesh cone locking lug against the synchronizing cone. This is due to the goove on the inside of the sliding coupling. When the speed of the synchromesh unit and gear wheel is nearly the same the sliding coupling engages with the gear wheel.

  • Page 109: Hydraulic Differential Lock

    Model Page 42. Gearbox A90 – A100 – A110 Hydraulic differential lock...
  • Page 110 Model Page 42. Gearbox A90 – A100 – A110 1) Frame parts 2) Piston 3) Cup springs (4pcs) - secures quick coupling when the pins are moving to wards the holes in the differential gear 4) Locking screw 5) Spring nut...

  • Page 111: Differential

    Model Page 42. Gearbox A90 – A100 – A110 Differential...
  • Page 112 Model Page 42. Gearbox A90 – A100 – A110 - Adjustment of the differential bearing preload by nuts in the bearing housing. - Lock the adjusting nut with locking plate. The plate is placed under two suitable screws. - Note! The sharp edge of the circlip must be outwards.

  • Page 113: Selector Forks

    Model Page 42. Gearbox A90 – A100 – A110 Selector forks...
  • Page 114 Page 42. Gearbox A90 – A100 – A110 - The selector forks are fitted in pairs on the selector rails. Two blocking pins (point A) on the selector rail prevents two speeds from becoming engaged at the same time on the input shaft. On the pinion shaft, a blocking plate 6 for the same pur pose is fitted on the selector rail (point B).
  • Page 115 Model Page 42. Gearbox A90 – A100 – A110...
  • Page 116 Page 42. Gearbox A90 – A100 – A110 - The forks are adjusted with aid of the adjusting flanges at the rail front ends so that when the forks are in the middle posi tion, the sliding coupler is in the middle position, i.e. a=a and the synchronizing cones on both sides of the coupler move freely.

  • Page 117: Lubricating Oil Pump

    Model Page 42. Gearbox A90 – A100 – A110 Lubricating oil pump...
  • Page 118 Model Page 42. Gearbox A90 – A100 – A110 The pump rotates in one direction. Revolution capacity is 9,1 cm3 . The middle gear of the shuttle unit drives the pump. The pump rotates, although the forward-reverse shuttle is in neutral.

  • Page 119: Gearbox Lubrication Pump

    Model Page 42. Gearbox A90 – A100 – A110 Gearbox lubrication pump...
  • Page 120 Model Page 42. Gearbox A90 – A100 – A110 - The filter seat (13) has also a by-pass valve (0,4 MPa), which protects the system when e.g. oil is stiff in the oil cooler. - Shuttle unit lubrication: The lubrication oil is led through the groove on the joint surface and with help of the tube Z to the bearings of the shuttle unit clutch shaft.

  • Page 121: Valve Block

    Model Page 42. Gearbox A90 – A100 – A110 Valve block...
  • Page 122 Model Page 42. Gearbox A90 – A100 – A110 1 ) Valve block 1a) Non-return valve (opening pressure 0,2 MPa) - prevents the falling of the operating pressure in the valveblock when the pressure decreases in the pump (e.g. during idle running).

  • Page 123: Special Tools

    Model Page 42. Gearbox A90 – A100 – A110 Special tools Reconditioning pinion shaft 1. ETV 892 230……………………….. Key for pinion shaft round nut 2. ETV 892 490 ……………….... Plate for fitting pinion shaft rear bearing bearing race 3. ETV 892 210……………………….. Sleeve for fitting bearing race for pinion shaft front bearing 4.
  • Page 124 Model Page 42. Gearbox A90 – A100 – A110 Reconditioning pinion shaft Reconditioning countershaft...
  • Page 125 Model Page 42. Gearbox A90 – A100 – A110 Reconditioning main shaft...
  • Page 126 Model Page 42. Gearbox A90 – A100 – A110 Reconditioning 4WD shaft Changing / reconditioning differential...
  • Page 127 Model Page 42. Gearbox A90 – A100 – A110...
  • Page 128 Model Page 42. Gearbox A90 – A100 – A110 Locally prepared tools Reconditioning selector forks Reconditining pinion shaft, Reconditining countershaft, Reconditining main shaft, Differential adjustments...
  • Page 129 Model Page 42. Gearbox A90 – A100 – A110 Reconditioning selector forks N.B. In these instructions the gearbox has been removed from the tractor. The selector forks for the speed gears can also be removed through the side cover of the gearbox, i.e.
  • Page 130 Model Page 42. Gearbox A90 – A100 – A110 6. Tighten the locking bolt on the selector shaft to a torque of 23 Nm (16 lbf ft). Use locking fluis Loctite 242 on the threads. 7. Put the gears in neutral. Clean the side cover sealing surfaces and apply sealing compound (e.g.
  • Page 131 Model Page 42. Gearbox A90 – A100 – A110 Reconditioning pinion shaft 5. Remove the selector forks. Before removing the pinion shaft, remove: Note! Take care of the plastic sliding pieces on the selector - gearbox from tractor forks. - differential from the gearbox Removing pinion shaft N.B.
  • Page 132 Model Page 42. Gearbox A90 – A100 – A110 Reconditioning synchromesh unit and changing bearings 8. Tap the pinion shaft free from the bearings. Pull the shaft out backwards from the gearbox. At the same time remove the bearing and the two spacer rings from the front end of 1.
  • Page 133 Model Page 42. Gearbox A90 – A100 – A110 Adjusting pinion shaft position N.B. The position of the pinion shaft must be adjusted if the shaft, the gearbox housing or the taper roller bearings have been changed. The purpose of the adjustment is to deter mine the number of shims under the rear bearing.
  • Page 134 Model Page 42. Gearbox A90 – A100 – A110 Fitting pinion shaft and adjusting bearing pre Load 1. Place the pinion shaft gears and synchromesh units in the correct order and the right way round in the gearbox. The sleeve located inside the first gear wheel and the end plate is pushed onto the shaft from the front.
  • Page 135 Model Page 42. Gearbox A90 – A100 – A110 - add approx. 0,050 mm to the reading on the dial gauge and reduce the thickness of the spacer rings by the calcu 6. Adjust the pinion shaft bearing preload as follows: - fit the front bearing on the shaft using ETV 890 830 lated amount.
  • Page 136 Model Page 42. Gearbox A90 – A100 – A110 10. Fit the differential lock selector fork and selector shaft. Lock the selector fork with the circlip. N.B. The longer half of the selector fork should face the gearbox wall. 11. Fit the selector forks for the speed and range gears.
  • Page 137 Model Page 42. Gearbox A90 – A100 – A110 Reconditioning countershaft Removing countershaft and changing bearings Before removing the countershaft the following parts hould be removed: - gearbox from tractor - selector forks - differential and pinion shaft 1. Remove the main shaft bearing cover (13 mm). Push the shaft forward slightly until it is free of the rear bearing.
  • Page 138 Model Page 42. Gearbox A90 – A100 – A110 - Measure the bearing clearance with a dial gauge. Place the stylus against the rear end of the shaft. - Reduce the shim thickness until the bearing clearance is 0,025-0,075 mm.
  • Page 139 Model Page 42. Gearbox A90 – A100 – A110 Reconditioning main shaft Changing bearings/synchronizing cones and fitting main shaft”+8, Removing main shaft Before removing main shaft, the following parts should be removed: - gearbox from tractor - selector forks - pinion shaft 1.
  • Page 140 Model Page 42. Gearbox A90 – A100 – A110 4. Fit the parts to the main shaft and tap the rear bearing 8. Fit the pulling piece ETV 893 614 to the pulling rod ETV onto the shaft using ETV 892 350.
  • Page 141 42. Gearbox Model Page A90 – A100 – A110 10. When the correct end float is achieved a new shaft seal and O-ring is fitted in the bearing cover using ETV 893 630. Apply universal grease to the seal. Wrap some thin plastic foil round the splines in order to protect the seal and push the bearing cover onto the shaft.
  • Page 142 Model Page 42. Gearbox A90 – A100 – A110 Reconditioning 4WD shaft for powered 4. Remove the gear wheel circlip and spacer ring and remove the gear wheel from the shaft. front axle Removing shaft Before removing the shaft the following parts should be...
  • Page 143 42. Gearbox Model Page A90 – A100 – A110 Fitting shaft Changing 4WD shaft front oil seal The shaft can be changed from below without parting the tractor as follows 1. Drain the oil from the gearbox. Remove the propeller shaft protecting plate under the tractor (17 and 19 mm).
  • Page 144 Model Page 42. Gearbox A90 – A100 – A110 Changing / reconditioning differential...
  • Page 145 Model Page 42. Gearbox A90 – A100 – A110 Removing differential First remove the following parts: - PTO - Final drives - Gearbox N.B. The rolling resistance of the differential bearings (in common with the pinion shaft bearings) is measured at the front end of the pinion shaft using a torsion meter.
  • Page 146 42. Gearbox Model Page A90 – A100 – A110 Changing differential side gears 5. Remove the tubular pin for the differential pinion shaft and tap out the shaft from the drilling. Remove the differen tial pinions. 1. Unscrew the crown wheel attaching bolts (17 mm).
  • Page 147 Model Page 42. Gearbox A90 – A100 – A110 10. Fit the tubular pin. 1. Lift the differential into place in the gearbox housing and 11. Position the other differential side gear on the position the differential lock coupling sleeve in the selector Differential pinions.
  • Page 148 Model Page 42. Gearbox A90 – A100 – A110 6. After adjusting the tooth backlash, measure using a tor sion meter the common rolling resistance of the differential and the pinion shaft at the front end of the pinion shaft. The...
  • Page 149 Model Page 7. 42. Gearbox A90 – A100 – A110 Differential adjustments Adjusting pinion shaft position: The position of the pinion shaft must be adjusted if the shaft, the gearbox housing or the taper roller bearings have been changed. The purpose of the adjustment is to determine the number of shims under the rear bearing race.
  • Page 150 Page 7. 42. Gearbox A90 – A100 – A110 Adjust the pinion shaft bearing preload: - Fit the end plate and spacer rings ( 2pcs) on the shaft. Select the spacer rings in order to achieve a combined thickness of for example 11,50 mm.
  • Page 151 Model Page 42. Gearbox A90 – A100 – A110 Adjusting of differential bearings: - Fit the bearing housings and tighten the nuts. - Tighten the differential bearings (ETV 893 660) until there is no clearance. Rotate the differential in order to "bed-in" the bearings.
  • Page 152 Model Page 43. Power Shuttle And 4wd Clutch A90 – A100 – A110 Contents 43 Power shuttle and 4WD clutch: Technical data, technical specifications, training material Power shuttle ............…… 1 4WD clutch .

  • Page 153: Power Shuttle And 4Wd Clutch

    Model Page 43. Power Shuttle And 4wd Clutch A90 – A100 – A110 Power shuttle...
  • Page 154 Model Page 43. Power Shuttle And 4wd Clutch A90 – A100 – A110 The reverse speeds are 1 % faster. The lubrication pump rotates in one direction. The middle gear of the shuttle unit drives the pump. The pump rotates, although the forward-reverse shuttle is in neutral.

  • Page 155: 4Wd Clutch

    Model Page 43. Power Shuttle And 4wd Clutch A90 – A100 – A110 4WD clutch...
  • Page 156 Page 43. Power Shuttle And 4wd Clutch A90 – A100 – A110 The lubrication way (gearbox-pinion shaft end) - The oil flows through a hole in the housing and via a pressed sleeve 9a to the end of the pinion shaft. The pinion shaft end has also a guide sleeve made of teflon.
  • Page 157 Model Page 43. Power Shuttle And 4wd Clutch A90 – A100 – A110 4WD control (+ differential lock control)
  • Page 158 Model Page 43. Power Shuttle And 4wd Clutch A90 – A100 – A110 4WD switch (S30). The differential lock switch (S22). (The switch has two positions) (The switch has two positions) -The opposite side of the symbol lens is pressed - The opposite side of the symbol lens is pressed down: 2 WD on.

  • Page 159: Special Tools

    Model Page 43. Power Shuttle And 4wd Clutch A90 – A100 – A110 Special tools Shuttle ETV 892 350 ......Sleeve for fitting front bearing on 4WD shaft, front wheel drive...

  • Page 160: Disassembling/Assembling Shuttle

    Model Page 43. Power Shuttle And 4wd Clutch A90 – A100 – A110 Disassembling/assembling Shuttle To avoid loosing the syncronizer, put the shuttle to neutral position, place a extra ball to the selector and do not lift from shuttle lever when disassembling or assembling the shuttle.
  • Page 161 Model Page 43. Power Shuttle And 4wd Clutch A90 – A100 – A110 7. Check the condition of synchronizing ring and the sliding coupling. Change the parts thet are wore out if needed Shuttle assembly 4. Remove the overdrive input shaft front end: circlip, shims, wear ring and the o-ring under the wear ring.
  • Page 162 Model Page 43. Power Shuttle And 4wd Clutch A90 – A100 – A110 4. Put in the spring and ball into the housing of the shuttle. Press the ball with drift (ø 16 mm, e.g. ET 893 380) and 7. Put in the circlip. Notice that the heads of the circlip must push in the selector shaft.
  • Page 163 Model Page 43. Power Shuttle And 4wd Clutch A90 – A100 – A110 11. If you have disconnected rear gear and lower counters haft of the shuttle, install them to the front side of the gear Note! If you have changed the axle of the oil pump make 9.
  • Page 164 Page Model 44. Final Drive A90 – A100 – A110 CONTENT 44.F NAL DRIVES: Technical data, technical specifications, training material Technicaldata…………………………………………..................1 Final drives ..………………………………………………………………………………………………………..2 Special tools Special tools ………………………………………………………………………………………………………...1 Adjusting drive shaft bearing clearance…………………………………………………………………………..6 Fitting final drive …………………………………………………………………………………………………….6 Work instructions...

  • Page 165: Technicaldata

    Model Page 44. Final Drive A90 – A100 – A110 Technical Data Gear ratio, planetary gears …………………………………………………………….i=5,6 Rear axle flange distance ……………………………………………………………...750 mm Tightening torques Drive axle housing-gearbox ……………………………………………………………230 Nm (24 mm) Wheel nuts, rear wheels ………………………………………………………………..550 Nm (M20) Oil draining plug …………………………………………………………………………65 Nm (36 mm) Centre bolt, outer drive shaft …………………………………………………………..3-5 Nm (24 mm)

  • Page 166: Final Drives

    Model Page 44. Final Drive A90 – A100 – A110 Final drives, description The final drives are of the planetary gear type with mechanically operated multi-disc brakes which run in oil. The rear axle housing is bolted to the gearbox by eight screw studs. The brakes are fitted between the gearbox and the planetary gear in the final drive and the brake control mechanism is fitted on top of the rear axle housing.
  • Page 167 Model Page 44. Final Drive A90 – A100 – A110...
  • Page 168 Model Page 44. Final Drive A90 – A100 – A110 1) Paper gasket 2) Wear ring 3) Return spring 4) Cassette type seal 5) Drive shaft (the sun gear machined in the end of the sun gear). 6) Planetary gears (3 pcs).

  • Page 169: Special Tools

    Model Page 44. Final Drive A90 – A100 – A110 Special tools Final drive 1. ETV 893 690 ………………………………… Plate for fitting bearing race for outer drive shaft 2. ETV 893 320 ………………………………… Plate to fit drive shaft bearing outer races 3.
  • Page 170 Model Page 44. Final Drive A90 – A100 – A110 Final drive Locally prepared tools Final drive...
  • Page 171 Model Page 44. Final Drive A90 – A100 – A110 Reconditioning final drive N.B. Removing the rear axle housing from the gearbox is made easier by removing the brake mechanism from the Removing final drive rear axle housing. 1. Drain the oil (3 drain plugs, max 23 litres). Free the Note! When the rear axle housing is pulled apart from the check link bracket from the rear axle housing.
  • Page 172 Model Page 44. Final Drive A90 – A100 – A110 10. Adjust the drive shaft bearing clearance and fit the final drive on the tractor. Note! In assembly the outer drive shaft bearing clearance is adjusted by tightening the centre bolt to a certain torque, see the instruction Adjusting drive shaft bearing clear ance".
  • Page 173 Model Page 44. Final Drive A90 – A100 – A110 4. Remove the shaft outer seal using a puller. 8. Remove the inner seal. Fit a new seal using ETV 892 210. 5. Position support bar ET 893 410 against the rear axle housing.

  • Page 174: Adjusting Drive Shaft Bearing Clearance

    Model Page 44. Final Drive A90 – A100 – A110 Adjusting drive shaft bearing clearance 1. Place the drive shaft with the wheel flange on the floor. 2. Position the brake discs in place on the inner drive shaft. Bed in the bearings by rotating the axle housing approx. 20 Push the inner drive shaft fully home.
  • Page 175 Model Page 44. Final Drive A90 – A100 – A110 6. Remove the support tool. Tighten the nuts for the rear axle housing to a torque of 230 Nm. 7. Press in approx. 20 g of grease through the lubricating nipple by the drive shaft outer bearing.
  • Page 176 Model Page 45. Power Take Off A90 – A100 – A110 Content 45 Power take-off: Technical data, technical specifications, training material Technical data ……………………………………………………………………………………. 2 2-speed PTO ……………………………………………………………………………………… 3 PTO brake …………………………………………………………………………………………. 5 Lubrication of PTO …………………………………………………………………………………6 Reconditioning PTO ………………………………………………………………………………. 7 Removing PTO …………………………………………………………………………………….
  • Page 177 Model Page 45. Power Take Off A90 – A100 – A110 Technical Data PTO shaft end (ISO 500-1979 Z6): - Nominal diameter ............. 35 mm - Number of splines .

  • Page 178: Power Take-Off

    Model Page 45. Power Take Off A90 – A100 – A110 2-Speed PTO...
  • Page 179 Model Page 45. Power Take Off A90 – A100 – A110 1) Clutch shaft 2) Selector fork 3) PTO- shaft 4) Paper gasket 5) Lubrication oil from distribution piece 6) Selector lever - spread multipurpose grease on the lever shaft...

  • Page 180: Pto Brake

    Model Page 45. Power Take Off A90 – A100 – A110 PTO brake The 2-speed PTO unit has a brake which ensures, that the PTO shaft stops rotating, when the control lever is moved to the neutral position. 5. Pivot pin of the brake shoe upper end In the neutral position, spring (4) presses the brake shoe 6.

  • Page 181: Lubrication Of Pto

    Model Page 45. Power Take Off A90 – A100 – A110 Lubrication of PTO The PTO shaft has a lip-type oil seal. Both shafts are sup 1. Lubricating oil inlet ported with ball bearings. A paper gasket or a suitable sea 2.

  • Page 182: Reconditioning Pto

    Model Page 45. Power Take Off A90 – A100 – A110 Reconditioning PTO Removing PTO 1. Drain the oil from the gearbox. Remove the top link. 2. Disconnect the upper ends of the pick-up hitch lifting links and lower the hitch.

  • Page 183: Dismantling Pto

    Model Page 45. Power Take Off A90 – A100 – A110 Dismantling PTO 1. Remove the PTO unit. 4. Take the large gear (Z63) out of the housing. 5. Remove the smaller gear wheel from the housing. 2. Remove spring (4). Unscrew the three fixing bolts for the Note! The PTO selector fork and its lever can be removed bearings.
  • Page 184 Model Page 45. Power Take Off A90 – A100 – A110 Changing oil seal at PTO shaft end 1. Drain the oil (23 litres). Remove the PTO shaft end cup guard and guard plate. 2. Remove the protecting ring in front of the seal. Tap a small hole in the seal using a centre punch.

  • Page 185: Assembling Pto

    Model Page 45. Power Take Off A90 – A100 – A110 Assembling PTO Note! The selector fork rail forces the tool ETV 894 080 out and the locking ball remains under the selector fork rail. 1. Place the foremost gearwheel (Z18) onto the upper shaft and fit the ball bearing in front of the gear fully home (if removed).

  • Page 186: Pto Brake

    Model Page 45. Power Take Off A90 – A100 – A110 PTO brake Adjust the position of the brake shoe so that the gearwheel rotates without dragging 15. Fit the pin (5) so that it engages with the brake shoe hole.
  • Page 187 50. Brake System 51. Service Brake 52. Air Brake System...
  • Page 188 Model Page 50. Brake System A90 – A100 – A110 51 . Brake System Technical data ……………………………………………………………………………………………………….. 1 Brake System ………………………………………………………………………………………………………... 2 Brake cylinder ……………………………………………………………………………………………………….. 4 Reconditioning brakes ………………………………………………………………………………………………. 6 52. Air Brake System Diaghram of Air Brake System Twin curcuit hydraulically actuated that controlled from tractor air brake system …………………………….. 1 When brake pedal is used that the system working ………………………………………………………………...

  • Page 189: Technical Data

    Model Page 51. Brake System A90 – A100 – A110 Technical data Brake type ………………………………………………………………………………. Mechanical control disc brake running in oil Number of friction discs per brake …………………………………………………….4 pcs Number of intermediate steel discs per brake………………………………………..3 pcs Friction area, total: ………………………………………………………………………2950 cm2 Brake disc, diameter …………………………………………………………………….224 mm...

  • Page 190: Brake System

    Model Page 51. Brake System A90 – A100 – A110 Brake System Description The brakes are multi-disc brakes running in oil and are fitted in the final drive housing between the planetary gear and the differential. The brakes are mechanically controlled by the brake pedals. The brake pedals can be used latched together for when transport driving, or individually as steering brakes.
  • Page 191 Model Page 51. Brake System A90 – A100 – A110 A) Brake pedal is not depressed Reservoir 1 is connected with the cylinder space 4. The cylinder space is pressureless. Balancing valve 5 is closed. B) Brake pedal is depressed The brake fluid flows from the reservoir through pipe into the master cylinder.

  • Page 192: Brake Cylinder

    Model Page 51. Brake System A90 – A100 – A110 Brake cylinder...
  • Page 193 51. Brake System Model Page A90 – A100 – A110 1) Brake cylinder 2) Brake rod 3) Brake ring 4) Adjusting nut for hand brake 5) Lever adjusting nut 6) The basic setting for the nut 6 is about 11mm from the end of the brake rod (with new brake discs) - If brake parts have been changed , check the position of the levers see picture at bottom.

  • Page 194: Reconditioning Brakes

    Model Page 51. Brake System A90 – A100 – A110 Reconditioning brakes There are grooves on the ceramic friction surfaces of the brake discs. The depth of these grooves is 0,3 mm (0.012 in) when the ceramic discs are new. When these grooves become shallow, the oil cannot pass through the friction discs and this results in impaired brake action.

  • Page 195: Air Brake System

    Page Model 52. Air Brake System A90 – A100 – A110...

  • Page 196: Diaghram Of Air Brake System

    Diaghram of Air Brake System...
  • Page 197 These are the components of air brake system. 1- ø 75 Air compressor 2- Air exit valve with dryer 3- Air tank 1 lt. 4- Air pressure switch – 4 bar 5- Air tank – 15 lt. 6- Automatic air drainer valve 7- Air gauge 8- Brake pedal with hydraulic actuated 9- Load adjustment ventil...

  • Page 198: Twin Curcuit Hydraulically Actuated That Controlled From Tractor Air Brake System

    Model Page 52. Air Brake System A90 – A100 – A110 Twin curcuit hydraulically actuated that controlled from tractor air brake system Twin curcuit hydraulically actuated that controlled from tractor air brake system When brake system is used...

  • Page 199: When Brake Pedal Is Used That The System Working

    Model Page 52. Air Brake System A90 – A100 – A110 Scheme - Operating principle in driving conditions Twin curcuit hydraulically actuated that controlled from tractor air brake When brake system is not used When brake pedal is used that the system working...

  • Page 200: When Hand Brake Is Used In N Position

    Model Page 52. Air Brake System A90 – A100 – A110 When hand brake is used in N position Twin curcuit hydraulically actuated that controlled from tractor air brake Hand brake is in P position...

  • Page 201: When Brake Pedal Is Used In P Position That The System Working

    Model Page 52. Air Brake System A90 – A100 – A110 When brake pedal is used in P position that the system working FAILURE Failure REPAIRING AND MAINTINANCE DESCRIPTI REASON FOR FAILURE code PROCEDURES Snap ring chins for compressor piston’s Cylinder sleeve remove from side to sump and keep together in the same axle.
  • Page 202 Model Page 52. Air Brake System A90 – A100 – A110 FAILURE Failure REPAIRING AND MAINTINANCE DESCRIPTI REASON FOR FAILURE code PROCEDURES Tank does not Compressor valves have external dusts Maintain compressor and also maintain valves FK 3301 drain its water caused by maintaing the system properly before compressor with changing repair kits.
  • Page 203 Model Page 52. Air Brake System A90 – A100 – A110 Ord. Hattat Code Product inform. Accesories Product Air compressor 9HT! 3500 A1A All accesories on system Ø75 – 100 cc Compressor 9HT! 3501 A1A connection All accesories on system...
  • Page 205 60. Front Axle and Steering System 61. Steering System 62. Powered Front Axle...
  • Page 206 Model Page 61. Steering System A90 – A100 – A110 61. Steering System Steering System ………………………………………………………………………………………………. 1 Measurement of the steering system, oil pressures………………………………………………………. 4 Reconditioning steering valve ………………………………………………………………………………. 5 Fitting steering valve …………………………………………………………………………………………. 6 62. Powered Front Axle Content General information…………………………………………………………………………………………...

  • Page 207: Steering System

    Model Page 61. Steering System A90 – A100 – A110 Steering System The tractor is fitted with a hydrostatic steering system which means that the steering wheel movements are transmitted to the front wheels by oil under pressure. This provides a steering system which is easy to handle.Should the oil pressure fail for some reason, e.g.
  • Page 208 Page 61. Steering System A90 – A100 – A110 The gear-type pump on the right-hand side of the engine (front pump for working hydraulics, rear pump for steering hydraulics) draws oil from the hydraulic housing via the suction strainer (6) through the suction pipes (2). The gear-type pump (1) for the steering hydraulics supplies the oil to the steering valve (3).
  • Page 209 Model Page 61. Steering System A90 – A100 – A110 Steering cylinder for non-powered front axle 1. Screw studs secured with Loctite 222 2. The bearing sleeve is provided with a groove which should be facing upwards. 3. Check that there is a clearance between the bearing sleeve and the seal 4.
  • Page 210 Model Page 61. Steering System A90 – A100 – A110 Measurement of the steering system, oil pressures Measurement of the pressure-limiting valve opening pressure (9-10 MPa) Pressure test procedure should test tehese parts. 1. Remove the engine hood upper side plate on the right- hand side.
  • Page 211 Model Page 61. Steering System A90 – A100 – A110 Reconditioning steering valve Removing steering valve 1. Remove the knob from the stop/hand throttle control (13 mm) and the rubber grommet for the control (later type models have a stop control in the instrumrnt panel).
  • Page 212 Model Page 61. Steering System A90 – A100 – A110 5. Remove the steering valve. Fitting steering valve 1. Fit the steering valve attaching bolts, rubber damber and washers (fix the lowermost washers with a quick-acting glue). 2. Fit the valve and tighten the bolts (13 mm, 20 Nm (15 lbf ft)) and secure with the tab washer.

  • Page 213: Powered Front Axle

    62. Powered Front Axle Model Page A90-A100-A110 General Information also bearings must be greased, too. The prescribed pre- loading, backlash and torque of parts must be maintained General: while mounting The efficiency and continued operation of front axle unit depends on regular, correct maintenance and also on Lubrication: efficient repair work.
  • Page 214 Spare parts and also specific equipments can be ordered another part, lubricate the mating surfaces. Tapered parts from the vehicle manufacturer or Hattat Otomotiv A.Ş. sould be assembled dry. Before assembly, check that the tapers are dry and free from burrs.

  • Page 215: Disassembly Of Hub And Planetary Gear Set

    Model Page 62. Powered Front Axle A90-A100-A110 Disassembly of Hub and Planetary Gear Set CAUTION: Perform all operations on both arms. 1- Remove the oil plug with washer and drain the oil. 4- Remove the o-ring from the flange Note: Before draining the oil, position the hub so that the oil plug is on the upper position.
  • Page 216 Model Page 62. Powered Front Axle A90-A100-A110 7- CAUTION: Do not try to remove the locked plate from 10- Pull out the ring gear assembly. the hub. Note: Pay attention to keep the ring assembly together Note: If hub, shaft(s) or plate is damaged, use a new hub while disassembling.
  • Page 217 Model Page 62. Powered Front Axle A90-A100-A110 13- Remove the flange assembly using a plastic hammer 16- Remove the bearing cones from the flange using a and a lever on several opposing points. suitable extractor or lever. Note: Pay attention to collect the bearing while removing the flange.
  • Page 218 Model Page 62. Powered Front Axle A90-A100-A110 CAUTION: Perform all operations on both arms. measure the thickness (D) between outside faces of the 1- Before the assembly of the hub and planetary gear set, bearings using tool (HFA100/T002). please look at the section "Assembly of Joint Casing".
  • Page 219 Model Page 62. Powered Front Axle A90-A100-A110 7- Fit the bearing to the steering knuckle using tool 10- Fit the bearing on the flange assembly using tool (HFA100/T003). (HFA100/T003). 8- Fit the new seal to the flange using tool 11- Locate the new appropriate shim with grease on the (HFA100/T004).
  • Page 220 Model Page 62. Powered Front Axle A90-A100-A110 16- Install the spacer ring, plate and snap ring 13- Place the ring gear support to the ring gear and then insert the snap ring to fix the ring gear support. respectively on the shaft gear.
  • Page 221 Model Page 62. Powered Front Axle A90-A100-A110 *19- If necessary, measure the dimension "X6" is 22- Locate the plates with grease on both faces of the from the outer face of the hub to the sitting face of planet gears and then insert them to the shafts.
  • Page 222 Model Page 62. Powered Front Axle A90-A100-A110 25- Grease and locate the new o-ring on the flange 28- Tighten the (two) bolts to 45-50Nm torque. Apply loctite assembly. 542 on threads. Note: Pay attention not to damage the o-ring. 29- Fill in the each hub with 0.7 lt. oil 26- Apply Loctite 518 on the hub.

  • Page 223: Disassembly Of Joint Casing

    Model Page 62. Powered Front Axle A90-A100-A110 Disassembly of Joint Casing 3- Remove the nut of the articulation pin of the steering CAUTION: Perform all operations on both arms. rod. 1-Before the disassembly of the joint casing, please look at the section "Disassembly of Hub and Planetary Gear Set".
  • Page 224 Model Page 62. Powered Front Axle A90 - A100 - A110 10- Remove the bearings from the kingpin houses 7- Remove the steering knuckle from the axle housing. Note: Pay attention not to damage the bushing and the seal on the steering knuckle during this operation.
  • Page 225 Model Page 62. Powered Front Axle A90 - A100 - A110 13- If you need, diassemble the drive shaft assembly. 16- Remove the (eleven) bolts after securing the axle Note: Please look at the section "Disassembly of Drive housing. Shaft".
  • Page 226 Model Page 62. Powered Front Axle A90 - A100 - A110 22- Check the wear conditions of all components. 19- Remove the seal on the axle housing by using a suitable exctractor. Note: The seal cannot be used after this operation.

  • Page 227: Assembly Of Joint Casing

    Model Page 62. Powered Front Axle A90 - A100 - A110 Assembly of Joint Casing 4- Fit the bearing cones into the kingpin houses on the axle CAUTION: Perform all operations on both arms. housing using tool (HFA100/T011). 1- Before the assembly of the joint casing, please look at Note: Grease and put the inner rings inside the bearing the section "Assembly of Central Housing".
  • Page 228 Model Page 62. Powered Front Axle A90 - A100 – A110 7- Locate the axle housing to the center housing. 10- Grease and fit the new seal in to steering knuckle using Note: Pay attention not to damage the o-ring on the axle tool (HFA100/T013) housing and secure the axle housing during installation.
  • Page 229 Model Page 62. Powered Front Axle A90 - A100 – A110 *13- If necessary, measure the dimension "B" between 16- Locate the removed bearings from kingpins to inside kingpin outside faces on steering knuckle the kingpin houses on the axle housing by hand.
  • Page 230 Model Page 62. Powered Front Axle A90 - A100 – A110 19- Locate the steering knuckle on the axle housing. Note: Pay attention to hold the drive shaft assembly straight for easier assembly. 22- Tighten the (eight) bolts to 120Nm torque.
  • Page 231 Model Page 62. Powered Front Axle A90 - A100 - A110 25- Tighten the nut of articulaton pin to 160Nm torque. 28- Fill in the central and axle housings with 6,5lt oil (80W90 GL-5 EP) from the oil hole on the left axle housing.

  • Page 232: Disassembly Of Steering System

    Model Page 62. Powered Front Axle A90 - A100 – A110 Disassembly of Steering System CAUTION: Perform all operations on both arms. 1- Remove the nut of the articulation pin of the steering 4- Disconnect the steering rod from the cylinder rod.
  • Page 233 Model Page 62. Powered Front Axle A90 - A100 – A110 7- Remove the shim(s) from the left cylinder cover face on 10- Remove the guide rings and seals from the cover. the central housing. Note: These seals and rings cannot be used after this Note: Shim(s) may come out with the left cylinder cover operation.

  • Page 234: Assembly Of Steering System

    Model Page 62. Powered Front Axle A90 - A100 – A110 Assembly of Steering System 4- Grease and locate the guide rings and seals on the CAUTION: Perform all operations on both arms. covers. 1- Grease and locate the new o-ring to the groove on the...
  • Page 235 Model Page 62. Powered Front Axle A90 - A100 – A110 7- Locate the piston rod assembly in the right positon 10- Join the tapered articulation pin to the steering in the steering cylinder. knuckle. Note: Look at on the piston rod and there should be left (L) and right (R) letters at the ends.

  • Page 236: Disassembly Of Drive Shaft

    Model Page 62. Powered Front Axle A90 - A100 – A110 Disassembly of Drive Shaft 1- See "Disassembly of Joint Casing " section for more 3- Remove the shaft from the drive shaft assembly by information about removing the drive shaft assembly from removing the snap ring.

  • Page 237: Assembly Of Drive Shaft

    Model Page 62. Powered Front Axle A90 - A100 – A110 Assembly of Drive Shaft 1- Locate the snap ring to its groove on shaft side of the 4- Locate the shaft gear to the drive shaft assembly. Slide drive shaft assembly.

  • Page 238: Disassembly Of Differential Unit

    Model Page 62. Powered Front Axle A90 - A100 – A110 Disassembly of Differential Unit 1- Remove the (two) bearings from the differantial unit by 4- Pull out the bevel gear ring. using a puller with a suitable counterhold. Note: This bearing may also be removed using two levers oppositely.
  • Page 239 Model Page 62. Powered Front Axle A90 - A100 – A110 10- Remove the bevel gear with the disc set. Note: When disc set is removed, tie them together and 7- Remove the (two) referance pins from the differantial identify its location.

  • Page 240: Assembly Of Differential Unit

    Model Page 62. Powered Front Axle A90 - A100 – A110 Assembly of Differential Unit 1- Check the wear condition of the discs and plates. 4- Grase and locate the trust plates on the differential housing. Note: If necessary, change the complete friction disc set with new ones.
  • Page 241 Model Page 62. Powered Front Axle A90 - A100 – A110 10- Locate the bevel gear ring and locate the (two) pins 7- Fit the slotted pin to the housing. through the referance holes on the bevel gear ring. Note: Pin holes on the differential housing and the shaft Note: Pay attention to match the marked lines putted while should be in a same axis while fitting the pin.

  • Page 242: Disassembly Of Central Housing

    Model Page 62. Powered Front Axle A90 - A100 – A110 Disassembly of Central Housing 1- Before the disassembly of the central housing, please look at the section "Disassembly of Joint Casing". 2- The supports and seals should be removed after front axle disassembling.
  • Page 243 Model Page 62. Powered Front Axle A90 - A100 – A110 10- Lock the pinion shaft using tool (HFA100/T019) and 7- Remove the o-ring from the cover. disassemble the locking nut, thrust plate and flange alternately. Note: Pay attention to control that locking screw is locked to the slot on the pinion shaft.
  • Page 244 Model Page 62. Powered Front Axle A90 - A100 – A110 13- Disassemble the pinion shaft from the central housing 16- Remove the spacing rings from the central housing. using a plastic hammer. Note: Pay attention not to drop the pinion shaft in to the central housing.
  • Page 245 Model Page 62. Powered Front Axle A90 - A100 – A110 19- Remove the shim(s). Note : This shim may be damaged while disassembling of bearing cone and do not use it again while assembling. 20- If you need, remove the sleeves using a suitable extractor and take the thrust plates from the central housing.

  • Page 246: Assembly Of Central Housing

    Model Page 62. Powered Front Axle A90 - A100 – A110 Assembly of Central Housing 1- Put the thrust plates and fit the new sleeves on the central housing using tool (HFA100/T021) if it is removed 4- Fit the bearing cone to the central housing from inner side using tool (HFA100/T022).
  • Page 247 Model Page 62. Powered Front Axle A90 - A100 – A110 *10- If necessary, calculate the shim thickness *7- If necessary, measure the thickness of the taper roller (S) using formula, S= C - (A+B), values in mm. bearing to see "B" value using tool (HFA100/T023).
  • Page 248 Model Page 62. Powered Front Axle A90 - A100 – A110 16- Fit the bearing to the pinion shaft using tool 13- Fit the bearing cone to the central housing using tool (HFA100/T024). (HFA100/T025). Note: Pay attention to stop linear movement of the pinion Note: Pay attention to put appropriate shim(s) before fitting shaft.
  • Page 249 Model Page 62. Powered Front Axle A90 - A100 – A110 19- Select any two spacing rings from the table and locate them over the bearing on the pinion shaft. 22- Measure the tightness of the pinion shaft to rotate it with a torquemeter using tool (HFA100/T020) and measured value should be between 1 and 2Nm torque.
  • Page 250 Model Page 62. Powered Front Axle A90 - A100 – A110 28- Set and control the tightness & tooth backlash of the bevel & pinion set using tool (HFA100/T018). 25- Apply loctite 518 on the cover face of the central housing.
  • Page 251 Model Page 62. Powered Front Axle A90 - A100 – A110 31- Remove the nut, thrust plate and flange alternately 34- Caulk the locking nut towards the slot on the pinion again and then fit the seal to the central housing using shaft for locking.

  • Page 252: Conversion Table

    Model Page 62. Conversion Table A90 - A100 – A110 Conversion Table Conversion table for common units Conversion table for common units Conversion factors Overall and detail dimensions millimeters (mm) 100 mm=3,94 inches 1 inch=25,4 mm Short distances e.g. turning circles metres (m)
  • Page 253 Model Page 62. Common Tightening Torques A90 - A100 – A110 Common Tightening Torques If in the "assembly" sections have not been given specified tightening torque to screw or nut, use tightening torque which are mentioned in table below. Tightening torques, metric standard thread (ISO)

  • Page 254: Explanation

    Model Page 62. Specific Equipment List A90 - A100 – A110 Explanation Tool numbers Assembly of Hub and Planetary Gear Set (Section 20) HFA100/T001 - Arbor fitting the bearing cones to the flange HFA100/T002 - Fixture for measuring the distance between bearing surfaces on the flange.
  • Page 255 Model Page 62. Specific Equipment List A90 - A100 – A110 HFA100/T001 HFA100/T004 HFA100/T005 HFA100/T002 HFA100/T005 HFA100/T003...
  • Page 256 Model Page 62. Specific Equipment List A90 - A100 – A110 HFA100/T010 HFA100/T007 HFA100/T011 HFA100/T008 HFA100/T012 HFA100/T009...
  • Page 257 Model Page 62. Specific Equipment List A90 - A100 – A110 HFA100/T016 HFA100/T013 HFA100/T017 HFA100/T014 HFA100/T018 HFA100/T015...
  • Page 258 Model Page 62. Specific Equipment List A90 - A100 – A110 HFA100/T019 HFA 100/T022 HFA 100/T020 HFA 100/T023 HFA100/T021 HFA 100/T024...
  • Page 259 Model Page 62. Specific Equipment List A90 - A100 – A110 HFA100/T028 HFA100/T025 HFA100/T026 HFA100/T027...
  • Page 260 Model Page 62. Maintenance Intervals A90 - A100 – A110 Maintenance: Scheduled maintenance: NOTE: All intervals are counted from zero hours on the Correct maintanance at the right time is a basic condition for reliable operation of the powered front hour recorder.
  • Page 261 62. Maintenance Intervals Model Page A90 - A100 - A110 Service inspection (after 100 hours): Every 250 working hours • Check oil in differential (2) Service inspection after 100 hours running to all new powered front axles. • Check oil in wheel hubs (3) The following steps should be taken: •...
  • Page 263 71.Frame 70.Frame and Wheel 72. Wheel...
  • Page 264 Model Page 72. Frame A90 - A100 - A110 Content 71 Frame: Technical data, technical specifications, training material Front weight support + frame ..........1...
  • Page 265 Model Page 72. Frame A90 - A100 – A110 Front weight support + frame...
  • Page 266 Model Page 72. Frame A90 - A100 – A110 - The center frame is also a fuel tank. This solution gives a low center of gravity to the tractor. The tunnels stiffens the con struction and gives a protected space for the clutch and 4WD shafts.
  • Page 267 72. Wheels...
  • Page 268 72. Wheels Model Page A90 - A100 – A110 Content 72 Wheels: Technical data, technical specifications, training material Wheels ............. . . 1 Tightening torques, wheel nuts.
  • Page 269 Model Page 72. Wheels A90 - A100 – A110 Wheels A90–A100–A110 Rear Front Long lower links 16.9R30 10.00-16 16.9R34 10.00-16 18.4R34 10.00-16 A90- A100 - A110 Rear Front Long lower links Fixed discs 16.9R30 12.4R24 18.4R30 13.6R24 480/70R30 360/70R24 420/85R34 340/85R24 16.9R34...
  • Page 270 Model Page 72. Wheels A90 - A100 – A110 Tyre pressures and permissible loadings Max. Load Max. load per / tyre Rear wheels Pressure (kPa) Front wheels Pressure per / tyre (kg) (kg) 16.9R30/8 2300 10.00-16/8 1190 18.4R30/8 2650 11.00-16/8...
  • Page 271 Model Page 72. Wheels A90 - A100 – A110 Track widths: Rear axle Track wi dt hs Front axle Track wi dt hs 16.9R30, 18.4R30, 1410 ), 1510 ), 1610, 480/70R30 1710, 1810, 1910, 10.00-16, 11.00-16/8 1410-1510 -1610 2010, 2110 16.9R34, 18.4R34,...
  • Page 273 81.Cab 80.Cab and Roll – bar 82. Air Conditioner 83. Instrument...
  • Page 274 Model Page 82. Air Conditioner A90 - A100 – A110 81 Cab Cab …………………………………………………………………………………………………….. 1 Cab Heater ……………………………………………………………………………………………. 2 Cab Fitler ……………………………………………………………………………………………… 3 82 Air conditioner Technical data, technical specifications, training material Safety precautions ……………………………………………………………………………………. 1 Operating principle …………………………………………………………………………………… 2 Aır Condıtıoner …………………………………………………………………………………………3...

  • Page 275: Cab

    Model Page 81. Cab A90 - A100 – A110...

  • Page 276: Cab Heater

    Model Page 81. Cab A90 - A100 – A110 Cab Heater...

  • Page 277: Cab Fitler

    Model Page 82. Cab A90 - A100 – A110 Cab Filter - The fan has three speeds. The intake air flows through fitler(filtre no’ları). The air is blown into the cabin via four adjustable nozzles. The heating water circulation can be adjusted by valve.

  • Page 278: Air Conditioner

    Model Page 82. Air Conditioner A90 - A100 - A110 Safety precautions Important! If the Air conditioning system must be opened,this work must be done by an expert who knows refrigerating systems. - The pressure of the refrigerant is always greater than its normal boiling point. If piping is split, the refrigerant will evaporate or boil very rapidly.

  • Page 279: Operating Principle

    Model Page 82. Air Conditioner A90 - A100 – A110 Operating principle An Air conditioning takes heat from the cab air when out door temperature is high. Refrigerant in the system is exposed under different pressures and temperatures and this causes a cooling effect. Refrigerant vaporizes in the...

  • Page 280: Aır Condıtıoner

    Model Page 82. Air Conditioner A90 - A100 – A110 Aır Condıtıoner Technical data Refrigerant ..............R134a - Refrigerant filling in system .

  • Page 281: Circulation Of The Refrigerant

    Model Page 82. Air Conditioner A90 - A100 – A110 CIrculation of the refrigerant...
  • Page 282 Page 82. Air Conditioner A90 - A100 – A110 - An air conditioner takes heat from the cab air when outdoor temperature is high. Refrigerant in the system is exposed under different pressures and temperatures and this causes a cooling effect. Refrigerant vaporizes in the evaporator and evaporation absorbs heat which is taken from the warm cab air which is blown through the evaporator.
  • Page 283 Model Page 82. Air Conditioner A90 - A100 – A110 1. Condenser 2. Compressor 3. Drier 4. Expansion valve 5. Evaporator 6. Temperature switch sensor Compressor (2) is driven by an extra belt pulley at the front end of the crankshaft. The compressor belt pulley is fitted with an electromagnetic clutch, which switches the compressor off and on according to the required cooling effect.

  • Page 284: Drier

    Model Page 82. Air Conditioner A90 - A100 – A110 Drier Inspection glass A (1500 r/min and max cooling effect) N.B. The refrigerant in the inspection glass should be clear. If it has brown/yellowish colour, the refrigerant and the drier must be changed.

  • Page 285: Compressor

    Model Page 82. Air Conditioner A90 - A100 – A110 Compressor D = Discharge S = Suction 1. Draining/filling plug for lubricating oil. Y5 = magnetic clutch Note! Do not open the plug, if the system is filled with Note! The service valves are on the pipe connectors.

  • Page 286: Expansion Valve

    Model Page 82. Air Conditioner A90 - A100 – A110 Expansion valve 1. Expansion valve 2. Hose from condenser 3. Inlet pipe to evaporator 4. Outlet pipe from evaporator 1. Temperature sensor 5. Hose to compressor suction side 2. Diaphragm 3.

  • Page 287: Instrument

    Model Page 83. Instrument A90 - A100 – A110 Instrument...
  • Page 288 Model Page 83. Instrument A90 - A100 – A110 1. Revolution counter 2. Fuel gauge 4. Engine temperature gauge 5. Tractor direction ind. flashers 6. Warning light, blocked engine air filter 7. Not in use 8. First trailer dir. ind. flashers (does not flash if a bulb in the system has blown).
  • Page 289 Model Page A90 - A100 – A110 Note! The air filter warning light comes on, if the engine oil pressure warning light comes on while driving, although the filter is OK. The function can be tested by blocking the engine intake air hole with a suitable plate Other indication lights, rev counter and hour recorders.
  • Page 291 91. Technical Specialities – Valves – 90. Hydraulic Lifts and External Valves Mechanicims and Working Principles 92. Disassembly - Assembly – Adjustments...
  • Page 292 Model Page 90. Hydraulic Lifts and External Valves A90 – A100 – A110 Contents 91.Technical specialities – Valves – Mechanicisms and Working Principles Hydraulic Lift Service Guide ……………………………………………………………………………….. 1 Main Relief Valve Operation ……………………………………………………………………………… 4 Changing of System relief valve …………………………………………………………………………… 5 Adjustment of system relief valve …………………………………………………………………………..

  • Page 293: Hydraulic Lift Service Guide

    Model Page 91.Technical spe.–Valves-Mech. and Working Princip. A90 - A100 – A110 Hydraulic Lift Service Guide Hydraulic lifts have the following features and controls. Position control (with position control lever). • Power control (power control lever and the changing place of the top link) •...
  • Page 294 Page 91.Technical spe.–Valves-Mech. and Working Princip. A90 - A100 – A110 When in the raise position , main spool moves to allow high pressure oil, from the load sensing valve, to flow through the main spool and out to the rockshaft cylinder passage.
  • Page 295 Page 91.Technical spe.–Valves-Mech. and Working Princip. A90 - A100 – A110 In lower position, the oil that comes from pump flow to the load sensing valve. With the main spool and lowering spool both in their lower positions, signal pressure from main spool to load sensing pilot valve is blocked. Spring pressure in the load sensing pilot valve then forces the valve closed.

  • Page 296: Main Relief Valve Operation

    Model Page 91.Technical spe.–Valves-Mech. and Working Princip. A90 - A100 – A110 Main Relief Valve Operation A. Pilot popet B. Pilot spring C. Setscrew D. Contra nut E. Pilot popet bed F. Pilot tank line G. Main bolt spring H. Main bolt tank line I.

  • Page 297: Changing Of System Relief Valve

    Model Page 91.Technical spe.–Valves-Mech. and Working Princip. A90 - A100 – A110 Changing of System relief valve System relief valve. Cylinder relief valve. Locking valve. LS (load sensing) relief valve. Reduce the lift outer arms to a minimum level and stop the engine.
  • Page 298 91.Technical spe.–Valves-Mech. and Working Princip. Model Page A90 - A100 – A110 Rubber ring. Support ring. C. Rubber ring. Mount the rubber rings shown on the picture as A and B to the support ring C. Insert the new relief valve to the slot and tighten to 41-48 Nm.

  • Page 299: Adjustment Of System Relief Valve

    Model Page 91.Technical spe.–Valves-Mech. and Working Princip. A90 - A100 – A110 Adjustment of system relief valve D. Safety setscrew Devices for adjustment: Manometer Hose with connection element Adapter Connect the manometer, hose and adapter to the mobile directional control valve outlet.

  • Page 300: Changing The Cylinder Relief Valve

    Model Page 91.Technical spe.–Valves-Mech. and Working Princip. A90 - A100 – A110 Changing the cylinder relief valve Reduce the lift outer arms to a minimum level and stop the engine. • Remove the canopy (It wont be necessary). • Remove the cylinder relief valve shown as number 2 and remove the rubber ring shown as B under the valve.

  • Page 301: Changing The Ls (Load Sensing) Relief Valve

    Model Page 91.Technical spe.–Valves-Mech. and Working Princip. A90 - A100 – A110 Changing the LS (Load Sensing) relief valve Reduce the lift outer arms to a minimum level and stop the engine. • Remove the canopy (It wont be necessary).

  • Page 302: Adjustment Of Ls Relief Valve

    Page 91.Technical spe.–Valves-Mech. and Working Princip. A90 - A100 – A110 Mount the rubber rings shown on the picture as A, C and support ring C on the LS relief valve according to picture. Mount the relief valve on the LS valve hole at the valve block and tighten to 22-28 Nm value.

  • Page 303: Locking Valve Working Principle

    Model Page 91.Technical spe.–Valves-Mech. and Working Princip. A90 - A100 – A110 Locking valve working principle Lowering valve line Locking shaft C. Ball D. Popet Cylinder (hydraulic lifter) line Locking valve (closed) G. Locking valve (semi-open) H. Locking valve (open) Returned oil Locking valve is a system operating as an adjustable orifice on the arm lowering phase of hydraulic lifter.
  • Page 304 Model Page 92.Disassembling – Assembling - Adjustments A90 - A100 – A110 Visual inspection of locking valve and replacement parts...
  • Page 305 Model Page 92.Disassembling – Assembling - Adjustments A90 - A100 – A110 Locking shaft Locking valve plug Locking valve plug Spring-bushing assemble C. Locking valve D. Locking shaft Lower the outer arms of the lift and stop the engine. •...
  • Page 306 Model Page 92.Disassembling – Assembling - Adjustments A90 - A100 – A110 Remove the locking shaft on the lower surface of the valve block and locking valve plug on the same axis (shown • as 5 and A on the above pictures).
  • Page 307 Model Page 92.Disassembling – Assembling - Adjustments A90 - A100 – A110 Demount the distributer by removing 3 socket bolt. •...
  • Page 308 Model Page 92.Disassembling – Assembling - Adjustments A90 - A100 – A110 Mount the o-rings to place between valve block and distrubuter as shown number 5, 6 and 7. • Mount the distributer by locking 3 socket bolt. Tighten the bolts to 20-25 Nm.
  • Page 309 Model Page 92.Disassembling – Assembling - Adjustments A90 - A100 – A110 Dismantling and re-installation of hydraulic lifts Reduce the lift outer arms to a minimum level and stop the engine. • Remove the hydraulic lift lewelling arms. • Remove the base plate.
  • Page 310 Model Page 92.Disassembling – Assembling - Adjustments A90 - A100 – A110...
  • Page 311 Model Page 92.Disassembling – Assembling - Adjustments A90 - A100 – A110 Disassembly, control and re-assembly of hydraulic lifter arms As defined in the previous section, disassemble the hydraulic lifter and turn upside down. • Disassemble the position feedback rod connected to the oval washer (12).
  • Page 312 Model Page 92.Disassembling – Assembling - Adjustments A90 - A100 – A110 Removal, controls and re-assamble of hydraulic cylinders Disassemble and reverse the hydraulic lift. • Remove the 6 connection bolts (2) and disassemble the cylinder (1). • Remove the rubber ring (4) in between the cylinder and hydraulic lifter.
  • Page 313 Model Page 92.Disassembling – Assembling - Adjustments A90 - A100 – A110 Remove the piston (6) from inside the cylinder. • Remove the conic plug (7) and clean the cylinder oil intake channel. • Remove the piston felt set (5) and ring (4).
  • Page 314 92.Disassembling – Assembling - Adjustments Model Page A90 - A100 – A110 389±4...
  • Page 315 92.Disassembling – Assembling - Adjustments Model Page A90 - A100 – A110 The principle of power control mechanisms The duty of the power control mechanism is to raise the arms of the hydraulic lifter a bit in case of getting caught by a hard surface and to remove the equipment from that hard surface and then to lower the outer arms again to the operation height.
  • Page 316 Model Page 92.Disassembling – Assembling - Adjustments A90 - A100 – A110 Setting of hydraulic lifter power control mechanism Operate the engine at idle mode. • Take both the position and power control arms to the farthest position. • By disassembling the security segment and pin (5) provide the head of rod (4) to be separated from the complete •...
  • Page 317 Model Page 92.Disassembling – Assembling - Adjustments A90 - A100 – A110 Arms of the hydraulic lifter. If they do not coincide turn the head of rod and provide the inlets to coincide at the • raising point of the outer arms of lift. After the collision of lock the head of rod by nut (3).
  • Page 318 Model Page 92.Disassembling – Assembling - Adjustments A90 - A100 – A110 AUXILIARY CYLINDER In case the of hydraulic lifter being required auxiliary cylinder can be mounted in order to increase the lifting capacity. ELECTRICAL AUTOLIFT Autolift system is a characteristic of hydraulic lifters that is connected to the three point linkage system of the tractor and that eases the control of equipment.
  • Page 319 Model Page 92.Disassembling – Assembling - Adjustments A90 - A100 – A110 Selenoid Selenoid bolt Main bolt Autolift piston Autolift drive pin When the electricity current is given to solenoid again, it provides the movement of the main slide by pushing the solenoid slide forward.
  • Page 320 Model Page 92.Disassembling – Assembling - Adjustments A90 - A100 – A110...
  • Page 321 Model Page 92.Disassembling – Assembling - Adjustments A90 - A100 – A110 ELECTRICAL AUTOLIFT MECHANISM SETTING...

  • Page 322: Disassembling - Assembling - Adjustments

    Page 92.Disassembling – Assembling - Adjustments A90 - A100 – A110 Before starting with the settings of electrical autolift, be sure that current is transmitted to part numbered as 12. (when the current is cut the arms will start to rise). Push the position control arm numbered as 1 and load control arm numbered as 2 in a manner as the outer arms are completely lowered.
  • Page 323 Page 92.Disassembling – Assembling - Adjustments A90 - A100 – A110 While lowering the heavy equipments use the locking knot. When you turn the knot to the side having the turtle sign the lowering speed of the equipment slows down. When you turn it to the direction of rabbit sign it lowers fast. When you turn the knot to the turtle sign completely, the equipment is locked at top.
  • Page 324 92.Disassembling – Assembling - Adjustments Model Page A90 - A100 – A110 Max. Sensitivity Mininum Sensitivity...
  • Page 325 100. Tools 100. Special Tools...
  • Page 326 Model Page 100. Special Tools A90 - A100 – A110 POLMOT SPECIAL TOOLS 9VA1 8800 A1A WHOLE NUMBER OF HEMA FRONT AXLE SPECIAL TOOLS ORDER HATTAT PART CODE PART NO PART NAME 9VA1 8802 A1A HFA100 / T028 Front axle seal mountıng arbor 9VA1 8803 A1A HFA100 / T027 Bearıng puller arbor...
  • Page 327 Ref No : 9HT1 0022 A1A Revised No: 02 (APRIL 2011) English Organize Sanayi Bölgesi 59501 Çerkezköy / TEK RDAĞ Tel : 0 282 758 33 80 (phx) www.hattat.com.tr This manual prepared by Hattat Tarım...

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