New Holland TL70 Instrucciones de funcionamiento

87043525 2/04

2004 CNH America LLC

Printed In U.S.A.

TL70, TL80, TL90, TL100

REPAIR MANUAL

COMPLETE CONTENTS

SECTION 00 - GENERAL GUIDELINES 2................................

SECTION 10 - ENGINE 2..............................................

SECTION 18 - CLUTCH 3..............................................

SECTION 21 - TRANSMISSIONS 3.....................................

SECTION 23 - DRIVE LINES 6..........................................

SECTION 25 - FRONT AXLE MECHANICAL TRANSMISSION 7...........

SECTION 27 - REAR AXLE MECHANICAL TRANSMISSION 8.............

SECTION 31 - POWER TAKE-OFF 8....................................

SECTION 33 - BRAKES 10..............................................

SECTION 35 - HYDRAULIC SYSTEMS 11................................

SECTION 41 - STEERING 17............................................

SECTION 44 - AXLES AND WHEELS 17.................................

SECTION 50 - AUXILIARY UNITS 18.....................................

SECTION 55 - ELECTRICAL SYSTEM 19.................................

SECTION 90 - BODYWORK AND DRIVING POSITION 25..................

The following pages are the collation of the contents pages from each section and

chapter of the TL Series Tractor Repair manual. Complete Repair part # 87043516.

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 TL Series Tractors.

SECTION 00 - GENERAL GUIDELINES

BOOK 1 - 87043517

Chapter 1 -- General Guidelines

CONTENT

Description Page

General Instructions 1............................................................

SECTION 10 -- ENGINE

BOOK 1 - 87043517

Chapter 1 -- Engine

CONTENTS

Section Description Page

General specifications 2..........................................................

Data 5..........................................................................

Tightening Torques 22...........................................................

Tools 23.......................................................................

Cross--sectional views 25........................................................

Lubrication diagram 27..........................................................

Cooling system diagram 28.......................................................

Fault diagnosis 29..............................................................

10 001 10 Engine R.I. 33..................................................................

10 001 30 Engine. Compression Test 48.....................................................

10 001 53 Engine D.A. Checks, dimensions and repairs 49.....................................

10 101 53 Valve guides -- Replacement 91...................................................

10 101 60 Injector sleeve -- Replacement 95.................................................

10 102 70 Crankshaft front seal -- Replacement 97............................................

10 106 12 Valve tappet clearance -- Adjustment 100...........................................

10 218 30 Engine injector R.I. 103..........................................................

10 246 14 Bosch injection pump R.I. Timing. Air bleed 106.....................................

10 402 10 Coolant pump R.I. 114...........................................................

10 402 28 Coolant pump D.A. 117..........................................................

10 402 30 Thermostat valve R.I. 118........................................................

10 406 10 Radiator R.I. 122................................................................

10 414 10 Coolant pump and generator drive belts. Tension adjustment 126......................

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SECTION 18 -- CLUTCH

BOOK 2 - 87043518

Chapter 1 -- Clutch

CONTENTS

Section Description Page

Clutches. General specifications 2..................................................

Tightening Torques 3.............................................................

Tools 3.........................................................................

Cross--sectional views 4..........................................................

Fault diagnosis 5................................................................

Checks, dimensions and repairs 6..................................................

18 100 40 Main transmission clutch release -- Adjustment 8.....................................

18 110 10 Clutch R.I. 9.....................................................................

18 110 30 Dual Clutch 12”/12” -- Test bench overhaul and adjustment 21.........................

SECTION 21 -- TRANSMISSIONS

BOOK 2 - 87043518

Chapter 1 -- Transmission and range gear (12 x 4)

CONTENTS

Section Description Page

Transmission and range gear. Data 2...............................................

Tightening Torques 3.............................................................

Tools 4.........................................................................

Cross--sectional views 6..........................................................

Description and Operation 8.......................................................

Fault diagnosis 8................................................................

Gearbox/transmission casing R.I. (See operation 21 118 12)*..........................

Gearbox/transmission casing D.A. and adjustments (See operation 21 118 85)*..........

*Note: These operations are covered in Section 27.

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SECTION 21 -- TRANSMISSIONS

BOOK 2 - 87043518

Chapter 2 -- Reverser

CONTENTS

Section Description Page

Transmission with range gear and reverser. Data 2...................................

Tightening Torques 3.............................................................

Tools 4.........................................................................

Cross--sectional views 4..........................................................

Description and Operation 6.......................................................

Fault diagnosis 6................................................................

21 110 85 Clutch--reverser casing. Disassembly--Assembly 7....................................

SECTION 21 -- TRANSMISSIONS

BOOK 2 - 87043518

Chapter 3 -- OVER DRIVE Unit

CONTENTS

Section Description Page

OVER DRIVE transmission data 1.................................................

Tightening Torques 2.............................................................

Tools 3.........................................................................

Cross--sectional views 3..........................................................

Description and Operation 5.......................................................

Fault diagnosis 5................................................................

21 110 10 OVER DRIVE Unit R.I. 6..........................................................

21 110 87 OVER DRIVE Casing -- Replacement 7.............................................

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SECTION 21 -- TRANSMISSIONS

BOOK 2 - 87043518

Chapter 4 -- 24x12 Mechanical Shuttle Transmission

with Dual Command (HI--LO)

CONTENTS

Section Description Page

Data 2..........................................................................

Tightening Torques 4.............................................................

Tools 5.........................................................................

Cross--sectional views 6..........................................................

Description and Operation 10.....................................................

Fault diagnosis 16..............................................................

21 110 10 Clutch casing with Dual Command (2 Speed Power Shift) R.I. 18......................

21 110 87 Clutch casing with Dual Command (2 Speed Power Shift) D.A. 27.....................

21 168 05 Dual Command (HI--LO) linkage adjustment 36.....................................

21 168 21 Dual Command (HI--LO) solenoid valve R.I. 37......................................

21 168 22 Dual Command (HI--LO) control valve R.I. 41.......................................

21 168 23 Dual Command (HI--LO) control valve D.A. 45......................................

SECTION 21 -- TRANSMISSIONS

BOOK 2 - 87043518

Chapter 5 -- Reverser and creeper unit

CONTENTS

Section Description Page

Data 2..........................................................................

Tightening Torques 3.............................................................

Tools 4.........................................................................

Cross--sectional views 6..........................................................

Description and Operation 8.......................................................

Fault diagnosis 8................................................................

21 110 87 Reverser--clutch casing and creeper unit D.A. 9......................................

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SECTION 21 -- TRANSMISSIONS

BOOK 3 - 87043519

Chapter 6 -- 24 x 24 Dual Command Power Shuttle

CONTENTS

Section Description Page

Data 2..........................................................................

Tightening Torques 4.............................................................

Tools 6.........................................................................

Cross--sectional views 8..........................................................

Description and Operation 11......................................................

21 110 88 Clutch casing with Power Shuttle and Dual Command (HI--LO) units D.A. 18............

21 154 60 Clutch (A) D.A. 25...............................................................

Clutch (B) D.A. 27...............................................................

Fault code decoding 28..........................................................

Description of systems 29, 64.....................................................

Automatic self-diagnosis 30, 65...................................................

Transmission disabled indicators 31, 66............................................

Self-configuration 33, 68.........................................................

Diagnostics 63, 102..............................................................

SECTION 23 -- DRIVE LINES

BOOK 4 - 87043520

Chapter 1 -- Drive lines

CONTENTS

Section Description Page

Data 2..........................................................................

Tightening Torques 3.............................................................

Tools 3.........................................................................

Cross--sectional views 4..........................................................

Description of operation and hydraulic diagrams 5....................................

Fault diagnosis 6................................................................

23 202 20 Services control valve R.I. 7.......................................................

23 202 24 Services control valve D.A. 10....................................................

23 202 50 Drive gear assembly R.I. 12......................................................

23 202 52 Drive gear housing R.I. 17........................................................

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SECTION 25 -- FRONT AXLE MECHANICAL TRANSMISSION

BOOK 4 - 87043520

Chapter 1 -- Front axle mechanical transmission

CONTENTS

Section Description Page

Data 2..........................................................................

Tightening Torques 4.............................................................

Tools 6.........................................................................

Cross--sectional views 9..........................................................

Description of LIM--SLIP self--locking differential operation 14.........................

Description of front differential lock operation 15.....................................

Fault diagnosis 16..............................................................

25 100 30 Front axle R.I. 17...............................................................

25 100 38 Front axle D.A. -- Overhaul 21....................................................

25 102 24 Front axle differential -- Overhaul 30...............................................

25 102 27 Front axle differential with LIM--SLIP unit -- Overhaul 31..............................

25 104 34 Differential lock clutch assembly -- Overhaul 33.....................................

25 108 30 Front epicyclic final drive without brake D.A. 35.....................................

25 108 30 Front epicyclic final drive with brake D.A. 39........................................

25 108 46 Steering knuckle pins and bearings 42.............................................

Adjustments 43.................................................................

Leading wheels. Toe--in check (See operation 44 511 80).............................

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SECTION 27 -- REAR AXLE MECHANICAL TRANSMISSION

BOOK 4 - 87043520

Chapter 1 -- Rear axle mechanical transmission

CONTENTS

Section Description Page

Data 2..........................................................................

Tightening Torques 3.............................................................

Tools 5.........................................................................

Cross--sectional views 10........................................................

Description and Operation 15.....................................................

Fault diagnosis 16..............................................................

21 118 12 Gearbox--transmission casing R.I. 18..............................................

21 118 85 Gearbox/transmission casing D.A. and adjustments 39...............................

27 110 10 Adjustments -- differential lock control pedal travel 58................................

27 120 10 Final drive casing R.I. 59.........................................................

27 120 32 Epicyclic final drive D.A. 62.......................................................

27 120 34 Drive wheel shaft D.A. 63........................................................

Platform R.I. (See operation 90 110 36).............................................

SECTION 31 -- POWER TAKE--OFF

BOOK 4 - 87043520

Chapter 1 -- Mechanical power take--off

CONTENTS

Section Description Page

Data 2..........................................................................

Tools 5.........................................................................

Tightening Torques 6.............................................................

Cross--sectional views 7..........................................................

Description of operation 11........................................................

Fault diagnosis 12..............................................................

31 112 20 Power take--off housing R.I. 13....................................................

31 112 45 Power take--off driving shaft D.A. 16...............................................

31 112 48 Driven shaft and other parts D.A. 16...............................................

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SECTION 31 -- POWER TAKE--OFF

BOOK 4 - 87043520

Chapter 2 -- Electro--hydraulic power take--off

CONTENTS

Section Description Page

Data 2..........................................................................

Tools 5.........................................................................

Tightening Torques 6.............................................................

Cross--sectional views 7..........................................................

Description, operation and hydraulic diagrams 13....................................

Fault diagnosis 24..............................................................

31 114 64 Power take--off clutch brake Replacement 25.......................................

31 116 21 Electro--hydraulic power take--off housing R.I. 27....................................

31 116 47 Speed selection control device D.A. 31.............................................

31 116 55 Power take--off driving shaft D.A. 31...............................................

31 116 58 PTO driven shaft D.A. 31.........................................................

Services control valve R.I. (See operation 23 202 20)..................................

Services control valve for tractors without

Dual command (HI--LO) D.A. (See operations 23 202 24 -- 23 202 29)...................

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SECTION 33 -- BRAKES

BOOK 4 - 87043520

Chapter 1 -- Brakes

CONTENTS

Section Description Page

Data 1..........................................................................

Tightening Torques 2.............................................................

Cross--sectional views 3..........................................................

Description and Operation 4.......................................................

Fault diagnosis 7................................................................

33 110 08 Handbrake control. Travel adjustment 8.............................................

33 110 20 Parking brake casing. R.I. 9.......................................................

33 110 26 Parking brake casing. D.A. 9......................................................

33 202 04 Brake hydraulic system. Air bleed 12..............................................

33 202 46 Service brake pump. R.I. 13......................................................

33 202 60 Service brake cylinder. R.I. 15....................................................

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