New Holland TT50A Tractor Service Repair Manual

TT45A, TT50A REPAIR MANUAL COMPLETE CONTENTS SECTION 00 - GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 SECTION 10 - ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 SECTION 18 - CLUTCHES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 SECTION 21 - TRANSMISSION SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 SECTION 27 - MECHANICAL REAR WHEEL DRIVE . . . . . . . . . . . . . . . . . . . . 13 SECTION 31 - POWER TAKE-OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 SECTION 33 - BRAKING SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 SECTION 35 - HYDRAULIC SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 SECTION 41 - STEERING SYSTEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 SECTION 44 - FRONT AXLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 SECTION 55 - ELECTRICAL SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 SECTION 90 - BODYWORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

The following pages are the collation of the contents pages from each section and chapter of the TT45A, TT50A Repair manual. Complete Repair part # 87655297.

The sections used through out all New Holland product Repair manuals may not be used for each product. Each Repair manual will be made up of one or several books.

Each book will be labeled as to which sections are in the overall Repair manual and which sections are in each book.

The sections listed above are the sections utilized for the TT45A, TT50A Tractors.

© 2007 CNH America LLC Printed In U.S.A.

87655301 3/07 1st Printing

SECTION 00 -- GENERAL -- CHAPTER 1

SECTION 00 -- GENERAL Chapter 1 -- General CONTENTS Section

Description

Page

Federal Emissions Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 California Emission Control Warranty Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 General Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Important Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Shimming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Rotating Shaft Seals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 O-Rings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Sealers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Spring Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Precautionary Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Equipment Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Spare Parts Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 General Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Health and Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 General Workshop Tools and Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Legal Aspects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Lubricants and Greases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Precautionary Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 The Tractor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Driving the Tractor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Operating the Tractor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Operating the PTO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Servicing the Tractor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Diesel Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Universal Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Safety Decals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Instructional Decals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Ecology and the Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Minimum Hardware Tightening Torques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Lubricants and Coolants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

00-1

SECTION 00 -- GENERAL -- CHAPTER 1 GENERAL INSTRUCTIONS

WARNING

SHIMMING At each adjustment, select adjusting shims, measure them individually using a micrometer and then sum up recorded values. Do not rely on measuring the whole shimming set, which may be incorrect, or on the rated value indicated for each shim.

All maintenance and repair work described in this manual must be performed exclusively by NEW HOLLAND service technicians in strict accordance with the instructions given and using any specific tools necessary.

ROTATING SHAFT SEALS

WARNING

To correctly install rotating shaft seals, observe the following instructions:

Anyone who performs the operations described herein without strictly following the instructions is personally responsible for resulting injury or damage to property.

WARNING The Manufacturer and all organizations belonging to the Manufacturer’s distribution network, including but not restricted to national, regional or local distributors, will accept no responsibility for personal injury or damage to property caused by abnormal function of parts and/or components not approved by the Manufacturer, including those used for maintenance and/or repair of the product manufactured or marketed by the Manufacturer. In any case, the product manufactured or marketed by the Manufacturer is covered by no guarantee of any kind against personal injury or damage to property caused by abnormal function of parts and/or components not approved by the Manufacturer.

•

Let the seal soak into the same oil as it will seal for at least half an hour before mounting;

•

Thoroughly clean the shaft and ensure that the shaft working surface is not damaged;

•

Place the sealing lip towards the fluid. In case of a hydrodynamic lip, consider the shaft rotation direction and orient grooves in order that they deviate the fluid towards the inner side of the seal;

•

Coat the sealing lip with a thin layer of lubricant (oil rather than grease) and fill the gap between the sealing lip and the dust lip of double lip seals with grease;

•

Insert the seal into its seat and press it down using a flat punch. Do not tap the seal with a hammer or a drift;

•

Take care to insert the seal perpendicularly to its seat while you are pressing it. Once the seal is settled, ensure that it contacts the thrust element, if required;

•

To prevent damaging the sealing lip against the shaft, place a suitable protection during installation.

IMPORTANT NOTICE All maintenance and repair operations described in this manual should be carried out exclusively by the authorized workshops. All instructions detailed should be carefully observed and special equipment indicated should be used if necessary.

Everyone who carries out service operations described without carefully observing these prescriptions will be directly responsible of deriving damages.

00-5

SECTION 00 -- GENERAL -- CHAPTER 1 O RINGS Lubricate the O rings before inserting them into their seats. This will prevent the O rings from roll over and twisting during mounting, which will jeopardize sealing.

SEALERS Apply silicone/gasket eliminator over the mating surfaces marked with an X. Before applying the sealer, prepare the surface as follows: •

Remove possible scales using a metal brush;

•

Thoroughly degrease the surfaces using one of the following cleaning agents: trichlorethylene, diesel fuel or a water and soda solution.

BEARINGS It is advisable to heat the bearings to 80° to 90°C (176° to 194°F) before mounting them on their shafts and cool them down before inserting them into their seats with external tapping.

SPRING PINS When mounting split socket spring pins, ensure that the pin notch is oriented in the direction of the effort to stress the pin.

Spiral spring pins should not be oriented during installation.

00-6

SECTION 00 -- GENERAL -- CHAPTER 1

SAFETY PRECAUTIONARY STATEMENTS A careful operator is the best operator. Most accidents can be avoided by observing certain precautions. To help prevent accidents, read and take the following precautions before driving, operating or servicing the tractor. Equipment should be operated only by those who are responsible and instructed to do so.

THE TRACTOR 1. Read this Operator’s Manual carefully before using the tractor. Lack of operating knowledge can lead to accidents.

2. Only allow properly trained and qualified persons to operate the tractor.

3. To prevent falls, use the handrails and step plates when getting on and off the tractor. Keep steps and platform clear of mud and debris.

4. Replace all missing, illegible or damaged safety decals.

5. Keep safety decals free of dirt or grime.

6. Do not permit anyone but the operator to ride on the tractor. It is unsafe for extra passengers to travel.

00-18

7. Keep children away from the tractor and farm machinery at all times.

8. Do not modify or alter or permit anyone else to modify or alter the tractor or any of its components or any tractor function without first consulting your dealer.

9. Install all guards before starting the engine or operating the tractor.

10. Tractor wheels are very heavy. They need to be handled with care. Ensure that they are stored at a place where they do not fall down & cause injury.

SECTION 00 -- GENERAL -- CHAPTER 1 DRIVING THE TRACTOR 1. Always sit in the driver’s seat while starting or driving the tractor.

2. When driving on public roads, have consideration for other road users. Pull in to the left side of the road occasionally to allow any following traffic to pass. Do not exceed the legal speed limit set for agricultural tractors.

3. Dip the tractor lights when meeting a vehicle at night. Make sure the lights are adjusted to prevent blinding the driver of an oncoming vehicle.

4. Reduce speed before turning or applying the brakes. Brake both wheels simultaneously when making an emergency stop. Ensure that both brake pedals are locked together when travelling at road speeds or when on public roads ensure correct operation of trailer brakes.

7. Any towed vehicle whose total weight exceeds that of the towing tractor must be equipped with brakes for safe operation.

8. Never try to apply the differential lock when turning. When engaged, the differential lock will prevent the tractor from turning.

9. Always check overhead clearance, especially when transporting the tractor. Watch where you are going, especially at row ends, on roads and around trees and low overhanging obstacles.

10. To avoid overturns, drive the tractor with care and at speeds compatible with safety, especially when operating over rough ground, when crossing ditches or slopes and when turning corners.

5. Use extreme caution and avoid hard application of the tractor brakes when towing heavy loads at road speeds.

6. Keep the tractor in the same gear when going downhill as would be used when going uphill. Do not coast or freewheel down hills.

11. Use extreme caution when operating on steep slopes.

12. If the tractor becomes stuck or the tires are frozen to the ground, reverse the tractor out to prevent overturning.

00-19

SECTION 10 -- ENGINE -- CHAPTER 1

SECTION 10 - ENGINE Chapter 1 - Engine CONTENTS Section

Description

Page

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Metric Bolt Torque Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Special Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Compression Test and Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Description of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Cylinder Head and Valve Train Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Cylinder Block Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Separating the Tractor at the Clutch Housing/Engine -- 8 x 12 Transmission . . . . . . . 25 Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Separating the Tractor at the Engine/Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Attaching the Tractor at the Clutch Housing/Engine -- 8 x 12 Transmission . . . . . . . . 30 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Overhaul . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Fuel Injector and Glow Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Oil Pressure Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Temperature Sending Switch and Alternator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Fan, Water Pump and External Oil Tube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Air Inlet Manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Rocker Arm Shaft and Support Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 10 101

Cylinder Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Valve Tappet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Fuel Shutoff Solenoid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

10-1

SECTION 10 -- ENGINE -- CHAPTER 1 Section 10 106

Description

Page

Engine Timing Gear Cover, Timing Gears, and Cam Shaft . . . . . . . . . . . . . . . . . . . . . . 37 Timing Gear Cover Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

10 106

Timing Gears and Cam Shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

10 102

Oil Sump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Oil Suction Pipe and Strainer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

10 110

Balancer Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

10 105

Connecting Rods, Bearings, and Pistons, Rings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

10 103

Flywheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

10 103

Backplate and Oil Seal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Crankshaft -- Main Bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

10 101

Cylinder Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Inspection and Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Valve Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Valve Guides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Valve Springs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Rocker Arms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Push Rods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Cylinder Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Cylinder Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Pistons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Disassembly and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Piston Rings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Connecting Rods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Connecting Rod Bearing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Clearance Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

10-2

SECTION 10 -- ENGINE -- CHAPTER 1 Section

Description

Page

Pistons, Rings, and Connecting Rod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 10 103

Crankshaft -- Main Bearing and Thrust Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Removal and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Crankshaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 Bearing (Bushing) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Main Bearing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 Port Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

10 106

Timing Gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Camshaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

10 103

Flywheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

10 102

Timing Gear Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

10 102

Front Oil Seal and Steering Pump Seal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

10 103

Crankshaft and Bearing Holder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 Rear Oil Seal and Backplate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 Flywheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

10 105

Pistons and Connecting Rods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

10 110

Balancer Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Balancer Shims . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Oil Suction Pipe and Suction Strainer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Oil Sump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

10 106

Camshaft and Camshaft Gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

10-3

SECTION 10 -- ENGINE -- CHAPTER 1 Section 10 106

Description

Page

Idler Gear, Oil Pump, and Injection Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Timing Gear Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Crankshaft Pulley . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 Fuel Injection Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 Hydraulic Oil Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 Power Steering Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

10 101

Head Gasket Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 Selection Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 Cylinder Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

10 106

Valve Clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 Valve Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Water Pump and Cooling Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 External Oil Tube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Glow Plug and Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Fuel Injector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

10 218

Fuel Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Alternator and Temperature Sender Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Exhaust Manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

10 304

Description of Operation -- Engine Lubrication System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

10 206

Oil Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 Construction and Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

10-4

SECTION 10 -- ENGINE -- CHAPTER 1 Section 10 304

Description

Page

Oil Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 Installation and Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 Engine Oil Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 Oil Pressure Relief Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 Oil Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

10 400

Description of Operation -- Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 Radiator Cap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

10 402

Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

10 402

Water Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

10 414

Cooling Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 Overhaul -- Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

10 406

Radiator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 Inspection and Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

10 402

Water Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 Inspection and Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

10 402

Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 Inspection and Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

10-5

SECTION 10 -- ENGINE -- CHAPTER 1 SPECIFICATIONS GENERAL

TT45A

TT50A

N844

N844L

4

4

Bore x Stroke

84 x 90 mm (3.31 x 3.54 in)

84 x 100 mm (3.31 x 3.94 in)

Displacement

1995 cc (121.7 cu. in.)

2216 cc (135.2 cu. in.)

Compression Ratio

22.5:1

22.4:1

Rated Speed (rpm)

2600

2800

29.8 kw (40 Hp)

33.5 kw (45 Hp)

26.1 kw (35.0 Hp)

31.3 kw (42.2 Hp)

1-3-4-2

1-3-4-2

Low Idle Speed

1050 rpm

1050 rpm

Maximum No-Load Speed

2855 rpm

3000 rpm

In-Line Vertical

In-Line Vertical

Overhead

Overhead

Compression Pressure at 200 rpm (cylinder speed)

29.4 ± 1.8 bar (427 ± 50 psi)

29.4 ± 1.8 bar (427 ± 50 psi)

Variation between cylinders

1.8 bar (50 psi)

1.8 bar (50 psi)

N844

N844L

Standard

84.0 mm (3.3071 -- 3.3078 in)

84.0 mm (3.3071 -- 3.3078 in)

Maximum

85.2 mm (3.3543 in)

85.2 mm (3.3543 in)

Standard

0.002 in.

(0.05 mm)

0.05 mm (0.002 in)

Maximum

0.12 mm (0.005 in)

0.12 mm (0.005 in)

Engine Model Number of Cylinders

Gross Engine Horsepower PTO Horsepower at 2250 Engine and 766 PTO rpm Firing Order

Cylinder Arrangement Valve Arrangement

CYLINDER BLOCK Bore

Head Surface Warp

* If bore size exceeds 85.2 mm (3.3543 in) replace with long block.

10-6

SECTION 10 -- ENGINE -- CHAPTER 1

10044351

MODEL N844 and N844L - TT45A and TT50A

10044352

4

10-24

SECTION 10 -- ENGINE -- CHAPTER 1

7

3

6

2

5

1

4

8 9

86071893

5

SEPARATING THE TRACTOR AT THE CLUTCH HOUSING/ENGINE – 8 x 2 TRANSMISSION

4. Remove the LH and RH engine side covers, 4.

Disassembly

6. Remove the steering wheel, 6.

1. Disconnect the negative (--) battery cable, and the positive (+) battery cable from the battery, 1.

7. Remove the instrument panel, 7, from the dash housing. Disconnect all electrical connectors from the instrument panel.

5. Remove the LH, RH and center rear hood panels, 5.

2. Disconnect the headlight wiring harness, 2, and remove the hood, 3.

3. If equipped, remove the remote loader control valve, and all the connecting hydraulic tubes from the right side loader tower.

10-25

8. Remove the dash housing, 8, from the firewall.

Disconnect all electrical connectors from the dash housing.

9. Disconnect electrical harness to the starter, 9.

SECTION 10 -- ENGINE -- CHAPTER 1

10

13

15

11

12

14

86071894

6 10. Disconnect and remove the throttle cable from the dash mounted throttle control lever, 10.

11. Disconnect and remove the throttle cable from the foot control pedal, 11.

12. Drain fuel from fuel tank, 12, into a suitable container. Remove fuel tank from firewall.

10-26

13. Remove the firewall, 13, from the tractor.

14. Disconnect all hydraulic tubes 14, to the hydraulic pump, 15.

SECTION 10 -- ENGINE -- CHAPTER 1 15. Attach a chain sling to the two hoist eyes, 1.

1

16. Attach a suitable hoist to the chain sling.

NOTE: The hoist is used for supporting the engine and axle assembly, not necessarily for lifting.

17. Roll a floor jack under the rear of the tractor, and place under the clutch housing. Raise the jack enough to support the drive train.

86071896

7 18. Remove the buckle-up bolts, 1, and starter, 2, that secure the engine, 3, to the clutch housing, 4.

4

2

NOTE: The hoist and/or floor jack may need to be raised or lowered to allow for separation of the engine and clutch housing.

1

19. Carefully roll the drive train away from the engine, using the floor jack for support.

3 86071895

8

10-27

SECTION 10 -- ENGINE -- CHAPTER 1 SEPARATING THE TRACTOR AT THE ENGINE/FRAME Removal 1. Use jack stands under the frame rails to support the front frame/engine assembly.

WARNING Make sure the front frame/engine assembly is securely supported before removing the engine.

2. Remove the chain sling from the two hoist eyes on the engine.

3. Drain the hydraulic fluid from the power steering reservoir, 1, into a suitable container. Remove the reservoir, 1, and mounting bracket from the engine.

1

86061281

9 4. Remove the air cleaner assembly, 1, from the tractor.

4

5. Remove the muffler and tailpipe assembly, 2, from engine.

6. Loosen the lower radiator hose, 3, and drain the coolant into a suitable container.

7. Remove the lower, 3, and upper, 4, radiator hoses.

8. Remove the radiator, 5, from the tractor.

2 1 5 86071897

3 10

10-28

SECTION 10 -- ENGINE -- CHAPTER 1 9. Attach a chain sling to the two hoist eyes, 1.

1

10. Attach a suitable hoist to the chain sling, and raise the engine enough to support the engine.

86071896

11 11. Loosen and remove the engine mounting bolts, 1, on both sides of the frame.

12. Carefully lift the engine from the frame.

13. Attach the engine to a suitable engine stand.

14. With the engine securely attached to the engine stand, remove the chain sling from the two engine hoist eyes.

1

86071898

12 Installation 1. Attach a chain sling to the two hoist eyes.

2. Attach a suitable hoist to the chain sling, and raise the engine enough to support the engine.

3. Remove the engine from the engine stand.

4. Using a hoist, position the engine in the frame, aligning the mounting holes in the frame with the mounting holes in the engine.

5. Install the engine mounting bolts, 1, on both sides of the frame. Tighten the mounting bolts to 139 – 175 N⋅m (102 – 129 ft-lb).

6. With the engine securely installed into the frame, remove the chain sling from the two engine hoist eyes.

1

86071898

13

10-29

SECTION 10 -- ENGINE -- CHAPTER 1 7. Reinstall the radiator, 1, into the tractor.

3

8. Reinstall the lower, 2, and upper, 3, radiator hoses.

9. 9. Fill the radiator, 1, with new coolant to the proper level.

10. Reinstall the muffler and exhaust pipe, 4, onto the exhaust manifold.

11. Reinstall the air cleaner assembly, 5, onto the engine.

4 5 1 86071897

2 14

12. Reinstall the power steering reservoir and mounting bracket, 1, onto the engine. Reconnect the hydraulic lines to the reservoir.

13. Refill the reservoir to the proper level with Ambra Multi G 134.

1

86061281

15

ATTACHING THE TRACTOR AT THE CLUTCH HOUSING/ENGINE -8 x 2 TRANSMISSION Assembly

WARNING Do not use the buckle-up bolts to draw the drive train together with the engine. Severe damage to the drive train may result.

1. Attach a chain sling to the two hoist eyes, 1.

1

2. Attach a suitable hoist to the chain sling.

3. Carefully roll the drive train into alignment with the engine. Align the splines on the 8 x 2 input shaft with the clutch and the engine flywheel.

Rotate the engine fan to align the input shaft and the clutch/flywheel. The floor jack or hoist may be needed to raise or lower the engine to make alignment possible.

86071896

16

10-30

SECTION 10 -- ENGINE -- CHAPTER 1 4. Connect the clutch housing, 1, to the engine, 2, and install the bucket-up bolts, 3.

5. Reinstall the starter, 4, and secure with the retaining nuts. Connect the wiring harness, 5, to the starter.

6. Tighten the buckle-up bolts, 3, in a criss--cross pattern. Torque the M10 bolts and nuts to 68 Nâ‹…m (50 ft-lb) Torque the two M12 bolts to 81 Nâ‹…m (60 ft-lb).

7. Remove the chain hoist and sling from the engine hoist eyes. Remove the floor jack from under the tractor.

5

4 1

3 2 86071895

17

10-31

SECTION 10 -- ENGINE -- CHAPTER 1

6

3

2

5

4

1

86071894

18 8. Reconnect all hydraulic tubes, 1, to the hydraulic pump, 2.

11. Reattach the throttle cable to the foot control pedal, 5.

9. Reattach the firewall, 3, to the tractor.

12. Reattach the throttle cable to the dash mounted throttle control lever, 6.

10. Reattach the fuel tank, 4, to the firewall.

Reconnect fuel lines to the fuel shut--off valve and tank vent.

10-32

Thank you very much for your reading. Please Click Here. Then Get COMPLETE MANUAL. NO WAITING

NOTE: If there is no response to click on the link above, please download the PDF document first and then click on it.

SECTION 10 -- ENGINE -- CHAPTER 1

2

6

3

7

4

8

5

1

86071893

19 13. Reconnect all electrical connectors to the dash housing, 1.

14. Reattach the dash housing, 1, to the firewall.

15. Reconnect all electrical connectors to the instrument panel, 2, and insert the instrument panel into the dash housing, 1.

21. Reconnect the positive (+) battery cable and negative (--) battery cable to the battery.

WARNING

16. Reinstall the steering wheel, 3.

Escaping hydraulic/diesel fluid pressures can penetrate the skin causing serious injury. Never use your hands to check for hydraulic leaks, use a piece of paper or cardboard to search for leaks.

17. Reinstall the LH, RH and center rear hood panels, 4.

22. Start the tractor and check for leaks.

18. Reinstall the LH and RH engine side covers, 5.

19. Reinstall the hood, 6, and reconnect headlight wiring harness, 7.

20. Install the remote loader control valve, and all connecting hydraulic tubes to the right side loader tower.

10-33

23. Make any necessary adjustments needed for proper operation of the tractor.

SECTION 10 -- ENGINE -- CHAPTER 1 OVERHAUL ENGINE NOTE: Some procedures discussed in this chapter are shown with the engine in the tractor. Many of the procedures can be done with the engine in or out of the tractor.

FUEL INJECTOR AND GLOW PLUG

4

Removal

5

5

1. Clean all dirt and oil from the injectors and surrounding areas.

2. Disconnect the fuel lines, 1, from the injectors and cap all openings.

2 3

3. Remove the injector fuel leak-off line, 2.

4. Remove the injector assemblies, 3.

1

5. Remove the glow plug bus connector, 4, and remove the glow plugs, 5.

20

OIL PRESSURE SWITCH

1

Remove the oil pressure switch, 1.

21

TEMPERATURE SENDING SWITCH AND ALTERNATOR

2

1

Removal

4

1. Remove the temperature sending switch, 1, from the front of the cylinder head.

2. Loosen the alternator mounting bolts, 2, and remove the V-belt, 3, from the drive pulley.

2

3. Disconnect the alternator wires from the back of alternator, 4.

4. Remove the alternator mounting bolts, 2, and remove the alternator.

3 22

10-34

SECTION 10 -- ENGINE -- CHAPTER 1 FAN, WATER PUMP, AND EXTERNAL OIL TUBE Removal 1. Remove the fan and water pump assembly. See “Fan Removal” and “Water Pump Removal” discussed later in this section.

1

2. Remove the external oil transfer tube banjo bolt, 1, from the front of the cylinder head.

19988040

23

AIR INLET MANIFOLD

3

Removal 1. Remove the retaining bolts, 1, cap nuts, 2, and seal washers, 3.

2. Remove the air inlet manifold, 4, and gasket, 5.

2 1

4

5 10044353

24

10-35