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SERVICE MANUAL
TD3.50
Tractor
Part number 47840677
English
March 2015
© 2015 CNHI Industrial. All Rights Reserved.

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Summary of Contents for New Holland TD3.50

  • Page 1 SERVICE MANUAL TD3.50 Tractor Part number 47840677 English March 2015 © 2015 CNHI Industrial. All Rights Reserved.
  • Page 2 TD 3.50 MODEL TRACTOR REPAIR MANUAL SECTION GENERAL ........... . . ENGINE .
  • Page 3 The document number of the manual and the edition/update dates are given at the bottom of each 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 As NEW HOLLAND constantly improves its product range, some information may be out of date subsequent to modifications implemented for technical or commercial reasons or to meet legal requirements in different countries.
  • Page 4 HOLLAND Service Manual - TD3.50 Tractor TABLE OF CONTENTS GENERAL SECTION 00 General Instructions and Health and Safety Chapter 1 Section Description Page 00 000 General Instructions ............
  • Page 5 Clutches Section 18 Section Description Page 18 000 Specifications ..............TIGHTENING TORQUES .
  • Page 6 DRIVE LINES SECTION 23 Drive Lines Chapter 1 Section Description Page 23 000 Specifications ..............Torque Settings and Tools .
  • Page 7 Diferential Chapter 2 Section Description Page 27 000 Differential Assembly Differential pinion and side gear backlash Repair and Inspection Adjustment of bevel wheel bearings and crown pinion backlash adjustment Final drive housing POWER TAKE-OFF SECTION 31 Mechanical Power Take - Off Chapter 1 Section Description...
  • Page 8 HYDRAULIC SYSTEM SECTION 35 Hydraulic System Chapter 1 35 000 Introduction and Circuit Identification ..........Open Centre High Pressure Hydraulic Circuit .
  • Page 9 Troubleshooting ............. . . Description and Operation .
  • Page 10 ELECTRICAL SYSTEM SECTION 55 Instruments Section 1 Section Description Page ............. Semi-digital instruments Introduction .
  • Page 11 Electrical Circuits Chapter 6 Section Description ............. Page 55 100 Contents...
  • Page 12 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 13 SECTION 00 - GENERAL - CHAPTER 1 NOTES FOR SPARE PARTS Use exclusively genuine NEW HOLLAND spare parts, the only ones bearing this logo. Only genuine parts guarantee same quality, life, safety as original components as they are the same as mounted in production.
  • Page 14 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 -it gives warning about improper repair operations and potential...
  • Page 15 SECTION 00 - GENERAL - CHAPTER 1 Use exclusively specified towing points for In case of operations outside the workshop, drive towing the tractor. Connect parts carefully. the tractor to a flat area and block it. If working on Ensure that foreseen pins and/or locks are an incline cannot be avoided, first block the steadily fixed before applying traction.
  • Page 16 SECTION 00 - GENERAL - CHAPTER 1 STARTUP HYDRAULIC SYSTEMS Some fluid slowly coming out from a very small Never run the engine in confined spaces that are port can be almost invisible and be strong enough not equipped with adequate ventilation for to penetrate the skin.
  • Page 17 COMPONENT TO BE FILLED OR RECOMMENDED RECOMMENDED INTERNATIONAL INTERNATIONAL TOPPED UP PRODUCTS SPECIFICATIONS liter/dm3 gallon Cooling System: Water & liquid NEW HOLLAND AMBRA AGRIFLU 50% + 50% (NH 900 A) Decanted and filtered Fuel tank........13.75 diesel fuel NEWHOLLAND AMBRA MASTERGOLD HSP Engine sump:...
  • Page 18 SECTION 10 - - ENGINE - - CHAPTER 1 CHAPTER 1 - ENGINE TABLE OF CONTENTS Section Description Page 10 000 Technical Information ............Fuel system technical data .
  • Page 19 SECTION 10 - - ENGINE - - CHAPTER 1 TECHNICAL INFORMATION 3 cylinders Engine type: - TD 3.50Turbocharged -- - TTF8035.25F313T (BOSCH pump) ........Type .
  • Page 20: Technical Information

    SECTION 10 - - ENGINE - - CHAPTER 1 (continued) TECHNICAL INFORMATION Lubrication ......... . . Forced feeding, gear pump Pump drive .
  • Page 21 SECTION 10 - - ENGINE - - CHAPTER 1 (continued) TECHNICAL INFORMATION Timing gears ......... . Top valves operated through push rods on camshaft Camshaft is driven by crankshaft.
  • Page 22 SECTION 10 - - ENGINE - - CHAPTER 1 TECHNICAL INFORMATION Turbocharger -Holset ..........HX25 Injection pump .
  • Page 23 SECTION 10 - - ENGINE - - CHAPTER 1 FUEL LIFT PUMP DATA Shaft eccentricity ......... Shaft diameter .
  • Page 24 SECTION 10 - - ENGINE - - CHAPTER 1 CRANKSHAFT BEARINGS Crankshaft ..........balanced with counterweights Main journal and crank pin diameter .
  • Page 25 SECTION 10 - - ENGINE - - CHAPTER 1 (continued) CRANKSHAFT BEARINGS The crankshaft is measured with a 1/100 sensitivity micrometer, with comparator tip being on point A......0,025 Wobbling of flywheel seat surfaces in relation to main journal axis .
  • Page 26 SECTION 10 - - ENGINE - - CHAPTER 1 PISTON DATA PISTON DATA TD 3.50 Piston ..........Piston .
  • Page 27 SECTION 10 - - ENGINE - - CHAPTER 1 TIMING GEARS AND CAMSHAFT Gap between timing gear teeth ......0.160 Idle gear bushing inner diameter (after pressing and reaming) .
  • Page 28 SECTION 10 - - ENGINE - - CHAPTER 1 ROCKER ARM SHAFT - VALVES Rocker arm shaft support hole diameter ..... 18.016 - 18.034 Rocker arm shaft diameter .
  • Page 29 SECTION 10 - - ENGINE - - CHAPTER 1 CYLINDER HEAD Cylinder head ..........Valve guides press installed Original height of the cylinder head .
  • Page 30 SECTION 10 - - ENGINE - - CHAPTER 1 LUBRICATION SYSTEM INFORMATION LUBRICATION SYSTEM INFORMATION TD 3.50 Long shaft - bush clearance ....... 0.016 - 0.055 Driven gear - short shaft clearance .
  • Page 31: Angular Tightening Torque Values

    SECTION 10 - - ENGINE - - CHAPTER 1 ANGULAR TIGHTENING TORQUE VALUES Pre-torque DESCRIPTION DESCRIPTION Thread size Angle Cylinder head bolts ......M 12 x 1.25 120°...
  • Page 32: Special Tools

    SECTION 10 - - ENGINE - - CHAPTER 1 SPECIAL TOOLS The tools listed below must be manufactured and used in order to work safely and efficiently and obtain the best results. List of special tools necessary to carry out the different operations described in this Section.
  • Page 33 SECTION 10 - - ENGINE - - CHAPTER 1 Measurements necessary manufacturing crankshaft front seat installation apparatus, are given in mm. Material UNI C40. 26102 Measurements necessary manufacturing crankshaft front seat installation apparatus, are given in mm. Material UNI C40. 26103 47840677-03-2015...
  • Page 34 SECTION 10 - - ENGINE - - CHAPTER 1 MIG0491A LONGITUDINAL SECTION OF 3 CYLINDER ENGINE 47840677-03-2015...
  • Page 35 SECTION 10 - - ENGINE - - CHAPTER 1 MIG0492A CROSS SECTION OF 3 CYLINDER ENGINE 47840677-03-2015...
  • Page 36 SECTION 10 - - ENGINE - - CHAPTER 1 47840677-03-2015...
  • Page 37 SECTION 10 - - ENGINE - - CHAPTER 1 ENGINE COOLING SYSTEM 2. Pump a. Thermostat open 3. Water temperature gage b. Thermostat closed 4. Engine coolant temperature sender c. 3-cylinder models 5. Fan 1. Thermostat 6. Radiator 47840677-03-2015...
  • Page 38: Troubleshooting

    SECTION 10 - - ENGINE - - CHAPTER 1 TROUBLESHOOTING Problem Possible Causes Suggested solutions Engine does not start. 1. Battery is partially flat. Check and charge the battery. If necessary, re place the battery. 2. Battery poles have been corroded Clean, check and tighten the battery or loose connections.
  • Page 39 SECTION 10 - - ENGINE - - CHAPTER 1 TROUBLESHOOTING (continued) Problem Possible Causes Suggested solutions Water pump is not running. 18. Pump is defective. Repair or replace. 19. Thermostat is defective. Replace thermostat. 20. Radiator running Wash the channels of the radiator core.
  • Page 40 SECTION 10 - - ENGINE - - CHAPTER 1 TROUBLESHOOTING (continued) Problem Possible Causes Suggested solutions 34. Fuel delivery pump is damaged. Replace pump. 35. Valve setting is incorrect. Adjust the Valve setting. 36. Cylinder pressure is low. Test compression and if necessary, rectify the engine.
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