New Holland WE150 Compact WE170 Compact WE170C Railroad Wheeled Excavators Official Workshop Service Repair Technical Manual

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This is the COMPLETE Official Service Repair Manual for the New Holland Wheel  Excavator. 
This manual contains deep information about maintaining, assembly, disassembly and servicing your New Holland . 

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Models And Serials :

 All Years & Serials Covered 

CONTENTS : 

SECTION 01 - SAFETY PRECAUTIONS
1. INTRODUCTION ........................................................................................................................................ 2
1.1 DESIGNATED USE ............................................................................................................................ 2
2. GENERAL SAFETY INSTRUCTIONS........................................................................................................ 3
3. USE INSTRUCTION................................................................................................................................. 12
3.1 LEVEL OF VIBRATIONS TRANSMITTED TO THE OPERATOR.................................................... 13
3.2 NOISE LEVELS ................................................................................................................................ 14
3.3 TRAVELLING ON PUBLIC ROADS ................................................................................................. 15
SECTION 02 - CONTROLS AND INSTRUMENTS
1. SWITCHES AND PUSH-BUTTONS ........................................................................................................... 1
2. CONTROLS AND PEDALS ........................................................................................................................ 6
3. MULTI-FUNCTION DISPLAY ................................................................................................................... 10
SECTION 03 - TECHNICAL SPECIFICATIONS
1. MAIN COMPONENTS ................................................................................................................................ 1
2. DIMENSIONS - OPERATING WEIGHTS ................................................................................................... 4
3. DIGGING PERFORMANCE ..................................................................................................................... 17
4. LIFTING CAPACITIES.............................................................................................................................. 29
5. HYDRAULIC SYSTEM ............................................................................................................................. 34
5.1 PUMPS ............................................................................................................................................. 34
6. SLEWING ................................................................................................................................................. 35
6.1 SLEWING GEARBOX ...................................................................................................................... 35
7. TRAVEL.................................................................................................................................................... 36
8. TYRES...................................................................................................................................................... 37
9. BRAKES ................................................................................................................................................... 37
10. STEERING ............................................................................................................................................... 37
11. ELECTRICAL SYSTEM............................................................................................................................ 37
12. BUCKETS................................................................................................................................................. 38
13. TIGHTENING TORQUES......................................................................................................................... 39
14. FUEL SYSTEM......................................................................................................................................... 39
15. ENGINE .................................................................................................................................................... 39
16. SUPPLY SUMMARIZING CHART............................................................................................................ 40
SECTION 04 - UPPER STRUCTURE
1. MAIN COMPONENTS ................................................................................................................................ 1
2. SLEWING BEARING .................................................................................................................................. 2
3. SLEWING GEARBOX ................................................................................................................................ 6
3.1 TECHNICAL SPECIFICATIONS ........................................................................................................ 6
3.2 REMOVAL AND INSTALLATION ....................................................................................................... 9
3.3 DISASSEMBLY AND ASSEMBLY ................................................................................................... 12
3.4 SPECIAL TOOLS ............................................................................................................................. 36
3.5 TROUBLESHOOTING...................................................................................................................... 38
4. MULTI-COOLER ....................................................................................................................................... 40
4.1 TECHNICAL SPECIFICATIONS....................................................................................................... 41
4.2 REMOVAL AND INSTALLATION EXPANSION TANK..................................................................... 42
4.3 COOLANT LEVEL, TOP-UP AND CHANGE.................................................................................... 43
4.4 REMOVAL AND INSTALLATION OF FAN AND HYDRAULIC MOTOR .......................................... 45
5. HYDRAULIC PUMPS ............................................................................................................................... 47
6. MUFFLER ................................................................................................................................................. 48
7. HYDRAULIC OIL TANK ............................................................................................................................ 49
7.1 OIL RETURN FILTER....................................................................................................................... 50
7.2 LEVEL CHECK AND TOP-UP .......................................................................................................... 51
7.3 OIL CHANGE AND CLEANING........................................................................................................ 52
7.4 BLEEDING VALVE ........................................................................................................................... 54
8. AIR FILTER............................................................................................................................................... 55
9. COUNTERWEIGHT .................................................................................................................................. 55
10. FUEL SYSTEM ......................................................................................................................................... 56
10.1 FUEL TANK ...................................................................................................................................... 59
10.2 FUEL FILTERS ................................................................................................................................. 61
11. CAB AND OPERATOR’S SEAT ............................................................................................................... 63
12. CENTRALIZED LUBRICATION ................................................................................................................ 75
12.1 SAFETY INSTRUCTIONS ................................................................................................................ 75
12.2 OPERATION..................................................................................................................................... 75
12.3 MAINTENANCE................................................................................................................................ 76
SECTION 05 - UNDERCARRIAGE
1. UNDERCARRIAGE COMPONENTS.......................................................................................................... 1
2. REAR RIGID AXLE ..................................................................................................................................... 2
2.1 TECHNICAL SPECIFICATIONS......................................................................................................... 3
2.2 DISASSEMBLY................................................................................................................................... 6
2.3 DISASSEMBLY AND ASSEMBLY...................................................................................................... 8
2.4 TROUBLESHOOTING...................................................................................................................... 87
2.5 SPECIAL TOOLS.............................................................................................................................. 89
3. TRAVEL MOTOR...................................................................................................................................... 90
3.1 TECHNICAL SPECIFICATIONS....................................................................................................... 90
3.2 DISASSEMBLY AND ASSEMBLY.................................................................................................... 91
3.3 DISASSEMBLY AND ASSEMBLY.................................................................................................... 92
4. CARDAN SHAFT .................................................................................................................................... 103
4.1 DISASSEMBLY AND ASSEMBLY.................................................................................................. 104
5. FRONT STEERING AXLE ...................................................................................................................... 107
5.1 TECHNICAL SPECIFICATIONS..................................................................................................... 108
5.2 DISASSEMBLY AND ASSEMBLY.................................................................................................. 111
5.3 DISASSEMBLY AND ASSEMBLY.................................................................................................. 114
5.4 TROUBLESHOOTING.................................................................................................................... 187
5.5 SPECIAL TOOLS............................................................................................................................ 189
6. WHEELS AND TYRES ........................................................................................................................... 190
7. BLADE .................................................................................................................................................... 194
7.1 BLADE CYLINDER ......................................................................................................................... 196
8. AXLE FLOATING LOCKING CYLINDERS ............................................................................................. 204
8.1 TECHNICAL SPECIFICATIONS..................................................................................................... 205
8.2 DISASSEMBLY AND ASSEMBLY ................................................................................................. 206
8.3 AIR BLEEDING............................................................................................................................... 207
8.4 DISASSEMBLY AND ASSEMBLY ................................................................................................. 208
8.5 TROUBLESHOOTING.................................................................................................................... 210
9. STABILIZERS......................................................................................................................................... 211
9.1 STABILIZER CYLINDERS.............................................................................................................. 214
9.2 TROUBLESHOOTING.................................................................................................................... 223
10. LEFT LADDER ....................................................................................................................................... 225
11. RIGHT LADDER AND TOOL STORAGE BOX....................................................................................... 226
12. ROTARY CONTROL VALVE AND ELECTRIC ROTOR ........................................................................ 227
12.1 TECHNICAL SPECIFICATIONS ....................................................................................................227
12.2 DISASSEMBLY AND ASSEMBLY ................................................................................................. 228
12.3 DISASSEMBLY AND ASSEMBLY ................................................................................................. 229
12.4 ELECTRIC ROTOR ........................................................................................................................ 231
SECTION 06 - FRONT ATTACHMENT
1. TYPES OF FRONT ATTACHMENT ........................................................................................................... 2
1.1 FRONT ATTACHMENT - WE150 Compact - WE170 Compact ......................................................... 2
1.2 FRONT ATTACHMENT - WE170C Railroad...................................................................................... 3
2. HYDRAULIC CYLINDERS.......................................................................................................................... 4
2.1 HYDRAULIC CYLINDERS - WE150 Compact - WE170 Compact..................................................... 4
2.2 HYDRAULIC CYLINDERS - WE170C Railroad ................................................................................. 5
2.3 BOOM CYLINDER.............................................................................................................................. 6
2.4 DIPPER CYLINDER ......................................................................................................................... 16
2.5 BUCKET CYLINDER ........................................................................................................................ 26
2.6 BOOM ADJUSTING CYLINDER ......................................................................................................42
2.7 SPECIAL TOOLS ............................................................................................................................. 51
3. BUCKETS................................................................................................................................................. 52
3.1 BUCKET TEETH - REPLACEMENT ................................................................................................ 54
SECTION 07 - STEERING SYSTEM
1. OPERATION............................................................................................................................................... 1
2. POWER STEERING................................................................................................................................... 3
2.1 TECHNICAL SPECIFICATIONS ........................................................................................................ 3
2.2 OPERATION....................................................................................................................................... 4
2.3 DISASSEMBLY AND ASSEMBLY .....................................................................................................5
3. PRIORITY VALVE .................................................................................................................................... 23
4. TROUBLESHOOTING.............................................................................................................................. 24
SECTION 08 - BRAKE SYSTEM
1. OPERATION............................................................................................................................................... 1
2. SERVICE BRAKE....................................................................................................................................... 4
3. PARKING BRAKE ...................................................................................................................................... 7
4. PEDAL BRAKE VALVE .............................................................................................................................. 8
5. ACCUMULATORS...................................................................................................................................... 9
5.1 MAINTENANCE................................................................................................................................ 10
6. TROUBLESHOOTING.............................................................................................................................. 11
SECTION 09 - HYDRAULIC SYSTEM
1. HYDRAULIC SYSTEM ............................................................................................................................... 1
2. HYDRAULIC SYSTEM DIAGRAMS ........................................................................................................... 5
2.1 HYDRAULIC SYSTEM DIAGRAMS - UPPER STRUCTURE ............................................................ 5
2.2 HYDRAULIC SYSTEM DIAGRAMS - UNDERCARRIAGE .............................................................. 19
2.3 HYDRAULIC SYSTEM DIAGRAMS BLADE AND/OR STABILIZERS ............................................. 20
3. HYDRAULIC PUMPS ............................................................................................................................... 23
3.1 VARIABLE-FLOW RATE TWIN PUMP............................................................................................. 24
3.2 ROTATION PUMP ............................................................................................................................ 37
3.3 GEAR PUMP .................................................................................................................................... 52
4. UPPER STRUCTURE CONTROL VALVE ............................................................................................... 53
5. UNDERCARRIAGE CONTROL VALVE ...................................................................................................63
6. PILOT CONTROL ASSY .......................................................................................................................... 65
6.1 PILOT CONTROL ASSY SOLENOID VALVES................................................................................ 69
7. ROTATION SYSTEM................................................................................................................................ 73
7.1 ROTATION GEARBOX..................................................................................................................... 75
8. TRAVEL .................................................................................................................................................... 77
8.1 TRAVEL MOTOR.............................................................................................................................. 80
9. STABILIZATION HYDRAULIC SYSTEM .................................................................................................. 86
10. BOOM HYDRAULIC SYSTEM.................................................................................................................. 91
11. HYDRAULIC SYSTEM OF BUCKET ........................................................................................................ 97
12. HYDRAULIC SYSTEM OF DIPPER ....................................................................................................... 102
13. HYDRAULIC SYSTEM OF 2-PIECE BOOM........................................................................................... 106
14. HYDRAULIC SYSTEM WITH COMBINATION OF DIFFERENT FUNCTIONS
(BOOM, 2-PIECE BOOM, DIPPER AND BUCKET) ............................................................................... 112
15. HYDRAULIC SYSTEM OF HAMMER (WITH 2-PIECE BOOM) ............................................................. 114
16. HYDRAULIC SYSTEM OF HAMMER AND SHEARS (WITH 2-PIECE BOOM)..................................... 117
17. HYDRAULIC SYSTEM OF SHEARS (WITH 2-PIECE BOOM) .............................................................. 122
18. HYDRAULIC SYSTEM OF HAMMER (WITH MONOBOOM)................................................................. 125
19. HYDRAULIC SYSTEM OF HAMMER AND SHEARS (WITH MONOBOOM) ........................................ 128
20. HYDRAULIC SYSTEM OF SHEARS (WITH MONOBOOM) .................................................................. 133
21. TROUBLESHOOTING ............................................................................................................................ 136
SECTION 10 - ELECTRICAL SYSTEM
1. ELECTRICAL DIAGRAMS.......................................................................................................................... 1
2. FUSES ...................................................................................................................................................... 39
2.1 FUSES - REPLACEMENT................................................................................................................ 41
3. BATTERIES .............................................................................................................................................. 42
3.1 CLAMPS CHECK.............................................................................................................................. 42
3.2 CHARGE........................................................................................................................................... 43
3.3 REPLACEMENT ............................................................................................................................... 44
4. BULBS ...................................................................................................................................................... 45
4.1 CAB LIGHT ....................................................................................................................................... 45
4.2 FRONT WORK LIGHTS ................................................................................................................... 45
4.3 BOOM WORK LIGHT ....................................................................................................................... 46
4.4 TRAVEL LIGHT ................................................................................................................................ 46
4.5 TURN SIGNAL LIGHTS.................................................................................................................... 47
4.6 REAR FLOODLAMPS ...................................................................................................................... 47
5. TROUBLESHOOTING.............................................................................................................................. 48
SECTION 11 - ELECTRONICS
1. MAIN COMPONENTS ................................................................................................................................ 1
2. COMPONENTS OF LINE 1 ........................................................................................................................ 3
2.1 MULTI-FUNCTION DISPLAY ............................................................................................................. 3
2.2 CENTRAL UNIT.................................................................................................................................. 3
2.3 KEY-PAD MODULES ......................................................................................................................... 6
2.4 POWER CONTROL SYSTEM............................................................................................................ 7
2.5 DIAGNOSTICS SOCKET ................................................................................................................... 9
2.6 ELECTRO-HYDRAULIC CONTROLLER ........................................................................................... 9
3. COMPONENTS OF LINE CAN2............................................................................................................... 13
3.1 OPERATION..................................................................................................................................... 13
3.2 CENTRAL UNIT................................................................................................................................ 14
3.3 HYDRAULIC CONTROL LEVERS ................................................................................................... 14
3.4 TRAVEL PEDAL............................................................................................................................... 19
3.5 ATTACHMENT PEDAL (FOR HAMMER AND ADJUSTING CYLINDER) ....................................... 20
3.6 POWER CONTROL SYSTEM.......................................................................................................... 21
4. ENGINE SPEED ACTUATOR .................................................................................................................. 28
4.1 ENGINE SPEED SENSING.............................................................................................................. 28
5. COOLANT TEMPERATURE DETECTION............................................................................................... 29
6. CHARGE AIR TEMPERATURE DETECTION.......................................................................................... 30
7. HYDRAULIC OIL TEMPERATURE DETECTION .................................................................................... 31
8. PROPORTIONAL VALVE - FAN MOTOR................................................................................................32
9. PROPORTIONAL VALVES - CONTROL BLOCK .................................................................................... 33
10. PILOT CONTROL BLOCK........................................................................................................................ 34
SECTION 12 - CALIBRATION
1. NECESSARY OPERATIONS BEFORE CALIBRATION ............................................................................ 1
1.1 CALIBRATION OF THE MAIN PUMP ................................................................................................ 1
1.2 CALIBRATION OF THE ROTATION PUMP....................................................................................... 2
2. DISPLAY: CALIBRATION MENU ............................................................................................................... 3
3. CALIBRATIONS WITH THE ENGINE RUNNING....................................................................................... 4
3.1 VDO CALIBRATION........................................................................................................................... 6
3.2 POWER CALIBRATION ..................................................................................................................... 7
3.3 MAIN VALVE CALIBRATION (CONTROL VALVE)............................................................................ 8
3.4 TRAVEL CALIBRATION................................................................................................................... 11
3.5 PUMP DELIVERY CALIBRATION....................................................................................................13
3.6 SLEWING PUMP CALIBRATION.....................................................................................................16
3.7 AUXILIARY PRESSURE CALIBRATION ......................................................................................... 18
4. CALIBRATIONS WITH THE ENGINE STOPPED .................................................................................... 20
4.1 CALIBRATIONS, ALL SOLENOID VALVES, MAIN PUMP, ROTATION PUMP,
AUXILIARY PRESSURE .................................................................................................................. 22
4.2 MAIN VALVE CALIBRATION (CONTROL VALVE).......................................................................... 24
SECTION 13 - FAULT CODES
1. ERROR INDICATION ON THE DISPLAY................................................................................................... 1
2. CENTRAL UNIT AND ENGINE................................................................................................................... 3
2.1 FAULT CODES................................................................................................................................... 3
3. PCS UNIT (POWER CONTROL SYSTEM) ................................................................................................ 5
3.1 FAULT CODES................................................................................................................................... 5
4. HYDRAULICS ............................................................................................................................................. 6
4.1 SAFETY-RELATED SYSTEM DIAGNOSTIC FAULTS ...................................................................... 6
4.2 COMMON FAULTS ............................................................................................................................ 7
4.3 CAN INTERFACE ............................................................................................................................. 10
4.4 DISPLAY INDICATORS.................................................................................................................... 11
4.5 KEY PADS ........................................................................................................................................ 11
4.6 COMMON DIGITAL INPUTS ............................................................................................................ 12
4.7 HYDRAULIC CONTROL LEVER / PEDALS..................................................................................... 13
4.8 PILOT PRESSURE SUPPLY............................................................................................................ 18
4.9 MAIN PUMPS ................................................................................................................................... 20
4.10 ATTACHMENT SENSORS............................................................................................................... 21
4.11 SLEWING SYSTEM.......................................................................................................................... 22
4.12 PILOT VALVES ON MAIN VALVE.................................................................................................... 24
4.13 ADDITIONAL VALVES AND SENSORS .......................................................................................... 28
4.14 AUTOMATIC CALIBRATION FAULTS ............................................................................................. 29

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