New Holland W50BTC, W60BTC, W70BTC, W80BTC Wheeled Loader Manual

New Holland W50BTC, W60BTC, W70BTC, W80BTC Wheeled Loader Manual

$34.00

Model: Wheeled Loader W50BTC, W60BTC, W70BTC, W80BTC
Format: PDF
Print No. 87734623B
English

Repair Manual – Wheel loaders W50BTC, W60BTC, W70BTC, W80BTC

New Holland W50BTC, W60BTC, W70BTC and W80BTC Loader Service Manual: 492 Pages

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Description

New Holland W50BTC, W60BTC, W70BTC, W80BTC Wheeled Loader Manual

Model: Wheeled Loader W50BTC, W60BTC, W70BTC, W80BTC
Format: PDF
Print No. 87734623B
English

Repair Manual – Wheel loaders W50BTC, W60BTC, W70BTC, W80BTC

New Holland W50BTC, W60BTC, W70BTC and W80BTC Loader Service Manual: 492 Pages

INDEX
SECTION 00 – INTRODUCTION
SECTION 10 – ENGINE
SECTION 25 – FRONT AXLES
SECTION 27 – REAR AXLES
SECTION 41 – STEERING SYSTEM
SECTION 50 – HEATING AND AIR CONDITIONING SYSTEM
SECTION 55 – ELECTRICAL SYSTEM

The New Holland manual is applicable for the four model namely : W50TC, W60TC, W70TC and W80TC

The W50BTC, W60BTC, W70BTC, W80BTC Loader Workshop Manual has been written for the repair specialist. It provides important information on
carrying out repair work expertly. Please go carefully through the Workshop Manual of the wheeled loader before starting any repair work. Use the Workshop Manual of the W50BTC, W60BTC, W70BTC, W80BTC Loader as a reference book and source of information even if you are familiar with wheeled loader technology. Using the Workshop Manual, the experience construction machine mechanic can carry out any necessary repairs expertly.

Sections of the Manual

The Manual is into main groups and subgroups, and covers any previous version of the machine. Any additions or modifications which can happen at a later date are not describe in this manual. The required information can easily be found by referring to the table of contents. For reasons of clarity, some of the illustrations are present in simplified form. Differences from the actual version at the W50BTC, W60BTC, W70BTC, W80BTC wheeled loader are therefore possible if this adds to the clarity of the information.

REPAIR and Parts

Carry out any necessary repair work as soon as possible.This reduces repair costs and increases the availability of your wheeled loader When doing any work on the wheeled loader, always observe the instructions given in the Workshop Manual. Extensive works not describe in the New Holland W50BTC, W60BTC, W70BTC, W80BTC Workshop Manual would be done for you by your dealer. Always use original spare parts only.

INDEX
SECTION 00 – INTRODUCTION
1. SAFETY INSTRUCTIONS……………………………………………………………………………………………………………. 1
2. GENERAL SAFETY INSTRUCTIONS……………………………………………………………………………………………. 2
3. TECHNICAL SPECIFICATIONS………………………………………………………………………………………………….. 12
SECTION 10 – ENGINE
1. DIESEL ENGINE ………………………………………………………………………………………………………………………… 1
2. FUEL SYSTEM…………………………………………………………………………………………………………………………… 2
3. COLD START DEVICE (NORTH AMERICA) ………………………………………………………………………………….. 5
SECTION 25 – FRONT AXLES
1. REMOVAL AND INSTALLATION ………………………………………………………………………………………………….. 1
2. DIMENSIONS …………………………………………………………………………………………………………………………….. 3
3. TECHNICAL SPECIFICATIONS……………………………………………………………………………………………………. 5
4. OIL CHANGE……………………………………………………………………………………………………………………………… 9
5. DISASSEMBLY AND ASSEMBLY……………………………………………………………………………………………….. 12
5.1 DISC BRAKE ASSY…………………………………………………………………………………………………………….. 12
5.2 BRAKE CALIPER ……………………………………………………………………………………………………………….. 19
5.3 REDUCTION GEAR (W50BTC) ……………………………………………………………………………………………. 27
5.4 REDUCTION UNIT (W60BTC, W70BTC, W80BTC)………………………………………………………………… 30
5.5 WHEEL HUB (W50BTC)………………………………………………………………………………………………………. 33
5.6 WHEEL HUB (W60BTC, W70BTC, W80BTC) ………………………………………………………………………… 42
5.7 WHEEL SHAFT (W60BTC, W70BTC, W80BTC) …………………………………………………………………….. 48
5.8 BRAKE AND WHEEL SHAFT (W60BTC, W70BTC, W80BTC HIGH SPEED )…………………………… 52
5.9 DIFFERENTIAL SUPPORT………………………………………………………………………………………………….. 60
5.10 DIFFERENTIAL ASSY……………………………………………………………………………………………………….. 68
5.11 PINION…………………………………………………………………………………………………………………………….. 75
6. TROUBLESHOOTING……………………………………………………………………………………………………………….. 81
7. SPECIAL TOOLS………………………………………………………………………………………………………………………. 84
SECTION 27 – REAR AXLES
1. REMOVAL AND INSTALLATION ………………………………………………………………………………………………….. 1
2. DIMENSIONS …………………………………………………………………………………………………………………………….. 3
3. TECHNICAL SPECIFICATIONS……………………………………………………………………………………………………. 7
4. OIL CHANGE……………………………………………………………………………………………………………………………. 14
5. DISASSEMBLY AND ASSEMBLY……………………………………………………………………………………………….. 18
5.1 MOTOR TB150…………………………………………………………………………………………………………………… 18
5.2 MOTOR TB138.5 HIGH SPEED …………………………………………………………………………………………. 21
5.3 TRANSMISSION BOX TB150 ………………………………………………………………………………………………. 25
5.4 TRANSMISSION TB138.5 HIGH SPEED …………………………………………………………………………….. 34
5.5 REDUCTION GEAR (W50BTC) ……………………………………………………………………………………………. 54
5.6 REDUCTION UNIT (W60BTC, W70BTC, W80BTC)………………………………………………………………… 57
5.7 WHEEL HUB (W50BTC)………………………………………………………………………………………………………. 61
5.8 WHEEL HUB (W60BTC, W70BTC, W80BTC)…………………………………………………………………………. 70
5.9 WHEEL SHAFT (W60BTC, W70BTC, W80BTC) …………………………………………………………………….. 76
5.10 DIFFERENTIAL SUPPORT ………………………………………………………………………………………………… 80
5.11 DIFFERENTIAL ASSY……………………………………………………………………………………………………….. 88
5.12 LIMITED SLIP DIFFERENTIAL ASSY………………………………………………………………………………….. 94
5.13 PINION…………………………………………………………………………………………………………………………… 101
6. TROUBLESHOOTING ……………………………………………………………………………………………………………… 107
7. SPECIAL TOOLS…………………………………………………………………………………………………………………….. 110
SECTION 33 – BRAKE SYSTEM
1. BRAKE SYSTEM DIAGRAM ………………………………………………………………………………………………………… 1
1.1 STANDARD DIAGRAM………………………………………………………………………………………………………….. 1
1.2 HIGH SPEED DIAGRAM……………………………………………………………………………………………………… 2
2. TECHNICAL SPECIFICATIONS……………………………………………………………………………………………………. 3
2.1 BRAKE PEDAL VALVE………………………………………………………………………………………………………….. 3
2.2 PRESSURE SWITCHES ……………………………………………………………………………………………………….. 3
3. OPERATION………………………………………………………………………………………………………………………………. 4
3.1 SERVICE BRAKE OPERATION……………………………………………………………………………………………… 6
3.2 PARKING BRAKE OPERATION……………………………………………………………………………………………… 8
4. BRAKE PEDAL VALVE………………………………………………………………………………………………………………… 9
5. PRESSURE SWITCHES ……………………………………………………………………………………………………………. 11
6. BRAKE ACCUMULATOR …………………………………………………………………………………………………………… 12
6.1 TECHNICAL SPECIFICATIONS……………………………………………………………………………………………. 12
7. CHECKS AND ADJUSTMENTS………………………………………………………………………………………………….. 13
7.1 SERVICE BRAKE SYSTEM PRESSURE CHECK…………………………………………………………………… 13
7.2 ACCUMULATOR PRESSURE CHECK………………………………………………………………………………….. 14
7.3 PEDAL ANGLE ADJUSTMENT…………………………………………………………………………………………….. 15
7.4 INCHING VALVE ADJUSTMENT………………………………………………………………………………………… 16
8. TROUBLESHOOTING ……………………………………………………………………………………………………………….. 17
SECTION 35 – HYDRAULIC SYSTEM
1. HYDRAULIC DIAGRAMS …………………………………………………………………………………………………………….. 1
1.1 HYDRAULIC DIAGRAM FOR W50BTC …………………………………………………………………………………… 1
1.2 HYDRAULIC DIAGRAM FOR W50BTC WITH OPTIONAL OUTFITS…………………………………………… 3
1.3 HYDRAULIC DIAGRAM FOR W60BTC …………………………………………………………………………………… 5
1.4 HYDRAULIC DIAGRAM FOR W60BTC WITH OPTIONAL OUTFITS…………………………………………… 7
1.5 HYDRAULIC DIAGRAM FOR W70BTC …………………………………………………………………………………… 9
1.6 HYDRAULIC DIAGRAM FOR W70BTC WITH OPTIONAL OUTFITS…………………………………………. 11
1.7 HYDRAULIC DIAGRAM FOR W80BTC …………………………………………………………………………………. 13
1.8 HYDRAULIC DIAGRAM FOR W80BTC WITH OPTIONAL OUTFITS…………………………………………. 15
2. TRANSMISSION……………………………………………………………………………………………………………………….. 17
2.1 HYDRAULIC DIAGRAM……………………………………………………………………………………………………….. 17
2.2 OPERATION………………………………………………………………………………………………………………………. 18
2.3 ADJUSTMENTS………………………………………………………………………………………………………………….. 20
3. VARIABLE-DISPLACEMENT PISTON PUMP……………………………………………………………………………….. 22
3.1 TECHNICAL SPECIFICATIONS……………………………………………………………………………………………. 23
3.2 MAIN VALVES ……………………………………………………………………………………………………………………. 24

3.3 DISASSEMBLY…………………………………………………………………………………………………………………… 32
3.4 ASSEMBLY………………………………………………………………………………………………………………………… 51
4. GEAR PUMP ……………………………………………………………………………………………………………………………. 58
4.1 TECHNICAL SPECIFICATIONS……………………………………………………………………………………………. 58
4.2 COMPONENTS ………………………………………………………………………………………………………………….. 59
4.3 DISASSEMBLY AND ASSEMBLY…………………………………………………………………………………………. 60
5. PRIORITY VALVE …………………………………………………………………………………………………………………….. 63
5.1 TECHNICAL SPECIFICATIONS……………………………………………………………………………………………. 63
6. TRAVEL MOTOR………………………………………………………………………………………………………………………. 64
6.1 TECHNICAL SPECIFICATIONS……………………………………………………………………………………………. 64
6.2 MAIN COMPONENTS …………………………………………………………………………………………………………. 66
6.3 OPERATION………………………………………………………………………………………………………………………. 67
6.4 REMOVAL …………………………………………………………………………………………………………………………. 70
6.5 DISASSEMBLY AND ASSEMBLY…………………………………………………………………………………………. 71
7. ONE-WAY DISTRIBUTOR VALVE………………………………………………………………………………………………. 85
8. HYDRAULIC OIL TANK……………………………………………………………………………………………………………… 86
8.1 OIL FILTER………………………………………………………………………………………………………………………… 87
9. TROUBLESHOOTING……………………………………………………………………………………………………………….. 88
SECTION 39 – FRAME
1. ARTICULATED JOINT…………………………………………………………………………………………………………………. 1
1.1 COMPONENTS ……………………………………………………………………………………………………………………. 1
1.2 DISASSEMBLY AND ASSEMBLY…………………………………………………………………………………………… 2
SECTION 41 – STEERING SYSTEM
1. OPERATION………………………………………………………………………………………………………………………………. 1
1.1 EMERGENCY STEERING …………………………………………………………………………………………………….. 3
1.2 PRESSURE ADJUSTMENT…………………………………………………………………………………………………… 4
2. POWER STEERING……………………………………………………………………………………………………………………. 5
2.1 TECHNICAL SPECIFICATIONS……………………………………………………………………………………………… 6
2.2 COMPONENTS ……………………………………………………………………………………………………………………. 7
2.3 DISASSEMBLY AND ASSEMBLY…………………………………………………………………………………………… 8
2.4 TROUBLESHOOTING…………………………………………………………………………………………………………. 24
2.5 SPECIAL TOOLS………………………………………………………………………………………………………………… 25
3. STEERING CYLINDER ……………………………………………………………………………………………………………… 26
3.1 REMOVAL AND INSTALLATION ………………………………………………………………………………………….. 27
3.2 DISASSEMBLY…………………………………………………………………………………………………………………… 29
4. TROUBLESHOOTING……………………………………………………………………………………………………………….. 34
SECTION 50 – HEATING AND AIR CONDITIONING SYSTEM
1. HEATING…………………………………………………………………………………………………………………………………… 1
2. AIR CONDITIONING …………………………………………………………………………………………………………………… 3
3. TROUBLESHOOTING……………………………………………………………………………………………………………….. 29

SECTION 55 – ELECTRICAL SYSTEM
1. ELECTRICAL DIAGRAMS……………………………………………………………………………………………………………. 1
2. FUSES AND RELAYS ……………………………………………………………………………………………………………….. 17
3. VOLTAGE AND CONTINUITY CHECK………………………………………………………………………………………… 20
4. BATTERY…………………………………………………………………………………………………………………………………. 21
4.1 REPLACEMENT …………………………………………………………………………………………………………………. 24
5. BULBS …………………………………………………………………………………………………………………………………….. 25
6. TROUBLESHOOTING ……………………………………………………………………………………………………………….. 29
SECTION 82 – WORKING EQUIPMENT
1. HYDRAULIC DIAGRAM……………………………………………………………………………………………………………….. 2
2. OPERATION………………………………………………………………………………………………………………………………. 3
3. REMOVAL AND INSTALLATION ………………………………………………………………………………………………….. 4
4. QUICK TOOL COUPLER……………………………………………………………………………………………………………… 6
4.1 COMPONENTS ……………………………………………………………………………………………………………………. 7
4.2 QUICK TOOL COUPLER CYLINDERS……………………………………………………………………………………. 8
5. BUCKET…………………………………………………………………………………………………………………………………….. 9
5.1 ASSEMBLY………………………………………………………………………………………………………………………….. 9
5.2 DISASSEMBLY…………………………………………………………………………………………………………………… 10
5.3 BUCKET TEETH – REPLACEMENT………………………………………………………………………………………. 11
6. FORKS…………………………………………………………………………………………………………………………………….. 12
6.1 DISASSEMBLY AND ASSEMBLY…………………………………………………………………………………………. 13
6.2 CHECKS ……………………………………………………………………………………………………………………………. 14
7. CYLINDERS……………………………………………………………………………………………………………………………… 16
7.1 BOOM CYLINDER………………………………………………………………………………………………………………. 16
7.2 DUMPING CYLINDER…………………………………………………………………………………………………………. 20
8. CONTROL VALVE…………………………………………………………………………………………………………………….. 24
9. LOAD HOLDING VALVE ……………………………………………………………………………………………………………. 27
9.1 TECHNICAL SPECIFICATIONS……………………………………………………………………………………………. 27
10. TROUBLESHOOTING……………………………………………………………………………………………………………… 28

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