Case WX95 Tier 3 WX125 Tier 3 Midi Excavators Service Manual 87730671A – PDF DOWNLOAD

Description

Case WX95 Tier 3 WX125 Tier 3 Midi Excavators Service Manual 87730671A – PDF DOWNLOAD

DESCRIPTION:

Case WX95 Tier 3 WX125 Tier 3 Midi Excavators Service Manual 87730671A – PDF DOWNLOAD

• This service manual has been prepared in order to increase repair quality, providing to the technicians the elements for a good knowledge of the product and showing the proper procedures to carry out the maintenance operations. We recommend to thoroughly read the content and follow it when necessary.
• It is a concise guide. It covers construction features, operation principle, troubleshooting, disassembly and assembly of components and repair action. Using this manual in systematic and rational way it is possible to reduce the repairing errors and delay that could cause machine stop with a detriment of cost management.
• The information quoted in this service manual are supplied also to be used for training aids. Therefore it is advisable to be used in the training of new personnel that will be employed in the machine maintenance.
• All the information, illustrations and specifications contained in this service manual are based on the latest product information available at the time of publication. The Dealer reserves the right to makes changes at any time without notice to this service manual for technical or trading reasons.

TABLE OF CONTENTS:

Case WX95 Tier 3 WX125 Tier 3 Midi Excavators Service Manual 87730671A – PDF DOWNLOAD

SECTION 01 – MAIN OPERATING RULES
1. INTRODUCTION ………………………………………………………………………………………………………………………. 1
1.1 FOREWORD …………………………………………………………………………………………………………………….. 1
1.2 MANUAL HANDLING…………………………………………………………………………………………………………. 1
SECTION 02 – SAFETY PRECAUTIONS
1. SAFETY PRECAUTIONS…………………………………………………………………………………………………………… 1
2. SAFETY DECALS …………………………………………………………………………………………………………………… 41
SECTION 03 – FEATURES AND DATA
1. FOREWORD ……………………………………………………………………………………………………………………………. 1
2. IDENTIFICATION DATA…………………………………………………………………………………………………………….. 2
3. NOISE LEVELS (2000/14/EC)…………………………………………………………………………………………………….. 3
4. SUMMARY PLATE FOR MAINTENANCE OPERATIONS………………………………………………………………. 5
5. WHEELED EXCAVATOR MAIN COMPONENTS ………………………………………………………………………….. 6
5.1 TECHNICAL SPECIFICATIONS ………………………………………………………………………………………….. 7
5.2 OPERATING WEIGHTS……………………………………………………………………………………………………. 17
5.3 DIGGING PERFORMANCE………………………………………………………………………………………………. 18
5.4 TRANSPORT DIMENSIONS……………………………………………………………………………………………… 20
5.5 BUCKET USEFULNESS DEPENDING ON ARM …………………………………………………………………. 24
6. FILLING CHART……………………………………………………………………………………………………………………… 26
SECTION 04 – UPPER STRUCTURE
1. UPPER STRUCTURE ……………………………………………………………………………………………………………….. 1
2. MAIN FRAME AND COUNTERWEIGHT………………………………………………………………………………………. 5
3. POWER UNIT…………………………………………………………………………………………………………………………… 9
3.1 ENGINE………………………………………………………………………………………………………………………….. 10
4. RADIATOR …………………………………………………………………………………………………………………………….. 12
5. HYDRAULIC PUMPS ………………………………………………………………………………………………………………. 14
5.1 MAIN PUMP ……………………………………………………………………………………………………………………. 15
5.2 DOUBLE PUMP WITH GEARS………………………………………………………………………………………….. 49
6. AIR CLEANER………………………………………………………………………………………………………………………… 61
7. EXHAUST SILENCER……………………………………………………………………………………………………………… 62
8. HYDRAULIC OIL TANK……………………………………………………………………………………………………………. 64
9. FUEL TANK……………………………………………………………………………………………………………………………. 66
10. FUEL TRANSFER PUMP…………………………………………………………………………………………………………. 67
11. GUARDS AND COVERS………………………………………………………………………………………………………….. 70
12. CAB ………………………………………………………………………………………………………………………………………. 76
13. SWINGING ASSY……………………………………………………………………………………………………………………. 88
14. MAIN CONTROL VALVE………………………………………………………………………………………………………… 100
15. SLEW DEVICE ……………………………………………………………………………………………………………………… 124
15.1 SLEW HYDRAULIC MOTOR …………………………………………………………………………………………… 126
15.2 SLEW REDUCTION UNIT……………………………………………………………………………………………….. 140
16. CONTROL LEVER ………………………………………………………………………………………………………………… 159
17. CONTROL PEDAL ………………………………………………………………………………………………………………… 164
18. STEERING UNIT …………………………………………………………………………………………………………………… 166
19. SWIVEL JOINT ……………………………………………………………………………………………………………………… 191
19.1 FEATURES AND DATA…………………………………………………………………………………………………… 193
20. BRAKE PEDAL VALVE ………………………………………………………………………………………………………….. 194
21. ACCUMULATORS…………………………………………………………………………………………………………………. 208
22. PRESSURE SWITCHES ………………………………………………………………………………………………………… 211
23. SOLENOID VALVES ……………………………………………………………………………………………………………… 215
SECTION 05 – UNDERCARRIAGE
1. SLEWING BEARING …………………………………………………………………………………………………………………. 2
2. LOWER FRAME ……………………………………………………………………………………………………………………….. 5
3. TRAVEL ASSY …………………………………………………………………………………………………………………………. 6
3.1 TRAVEL HYDRAULIC MOTOR……………………………………………………………………………………………. 7
3.2 SPEEDS GEAR BOX………………………………………………………………………………………………………… 23
3.3 STEERING AXLES: FRONT AND REAR…………………………………………………………………………….. 52
3.4 RIGID REAR AXLE…………………………………………………………………………………………………………. 150
3.5 DRIVE SHAFT ……………………………………………………………………………………………………………….. 213
4. WHEELS AND TYRES …………………………………………………………………………………………………………… 214
4.1 TYRES………………………………………………………………………………………………………………………….. 222
5. BLADE …………………………………………………………………………………………………………………………………. 227
6. LATERAL STABILIZERS ………………………………………………………………………………………………………… 228
SECTION 06 – FRONT ATTACHMENT
1. INTRODUCTION ………………………………………………………………………………………………………………………. 1
2. CYLINDER REMOVAL AND INSTALLATION……………………………………………………………………………….. 6
2.1 BUCKET CYLINDER ………………………………………………………………………………………………………….. 6
2.2 ARM CYLINDER………………………………………………………………………………………………………………. 10
2.3 POSITIONING CYLINDER ………………………………………………………………………………………………… 14
2.4 BOOM CYLINDER……………………………………………………………………………………………………………. 19
3. WX95 – CYLINDERS ……………………………………………………………………………………………………………….. 24
3.1 BUCKET CYLINDER ………………………………………………………………………………………………………… 24
3.2 ARM CYLINDER………………………………………………………………………………………………………………. 31
3.3 POSITIONING CYLINDER ………………………………………………………………………………………………… 38
3.4 BOOM CYLINDER……………………………………………………………………………………………………………. 45
4. WX125 – CYLINDERS ……………………………………………………………………………………………………………… 52
4.1 BUCKET CYLINDER ………………………………………………………………………………………………………… 52
4.2 ARM CYLINDER………………………………………………………………………………………………………………. 59
4.3 POSITIONING CYLINDER ………………………………………………………………………………………………… 66
4.4 BOOM CYLINDER……………………………………………………………………………………………………………. 73
5. ANTIDROP VALVE………………………………………………………………………………………………………………….. 81
6. PINS AND BUSHINGS …………………………………………………………………………………………………………….. 83
7. BUCKETS ………………………………………………………………………………………………………………………………. 88
SECTION 07 – HYDRAULIC SYSTEM
1. HOSES AND FITTINGS …………………………………………………………………………………………………………….. 1
2. HYDRAULIC SYSTEM ………………………………………………………………………………………………………………. 8
2.1 MAIN PIPELINES ………………………………………………………………………………………………………………. 8
2.2 SUCTION AND DELIVERY PIPELINES………………………………………………………………………………… 9
2.3 RETURN PIPELINES ……………………………………………………………………………………………………….. 11
2.4 DRAINING PIPELINES……………………………………………………………………………………………………… 13
2.5 FRONT ATTACHMENT PIPELINES …………………………………………………………………………………… 17
2.6 NIBBLER/BREAKER CONTROL PIPELINES………………………………………………………………………. 18
2.7 SLEW CONTROL PIPELINES – TRAVEL AND BLADE/STABILIZERS……………………………………. 23
2.8 STEERING PIPELINES (MACHINE 4WD)…………………………………………………………………………… 25
2.9 STEERING PIPELINES (MACHINE 2WD)…………………………………………………………………………… 28
2.10 BRAKE PIPELINES………………………………………………………………………………………………………….. 31
2.11 POWER STEERING PIPELINES ……………………………………………………………………………………….. 35
2.12 LATERAL STABILIZERS AND BLADE CONTROL PIPELINE………………………………………………… 40
2.13 LOCK VALVES………………………………………………………………………………………………………………… 44
2.14 STABILIZERS/BLADE SELECTION VALVE………………………………………………………………………… 45
2.15 FRONT AXLE LOCK ………………………………………………………………………………………………………… 46
2.16 AXLE LOCK VALVE …………………………………………………………………………………………………………. 48
2.17 PRESSURE RELIEF VALVE……………………………………………………………………………………………… 48
3. OPERATION OF CIRCUITS……………………………………………………………………………………………………… 50
SECTION 08 – ELECTRICAL SYSTEM
1. SAFETY PRECAUTIONS…………………………………………………………………………………………………………… 1
2. FEATURES AND DATA …………………………………………………………………………………………………………….. 2
3. COMPONENTS LOCATION AND OPERATION……………………………………………………………………………. 3
4. UNDERCARRIAGE ELECTRIC COMPONENTS…………………………………………………………………………… 6
4.1 MACHINE WITH FOUR STEERING WHEELS ………………………………………………………………………. 6
4.2 MACHINE WITH TWO STEERING WHEELS………………………………………………………………………… 7
5. CONTROL UNITS ELECTRIC SYSTEM………………………………………………………………………………………. 7
6. LIGHT AND BEAMS GROUP……………………………………………………………………………………………………… 8
7. GAUGES AND CONTROLS……………………………………………………………………………………………………….. 9
7.1 DASHBOARDS………………………………………………………………………………………………………………….. 9
7.2 CONTROL LEVERS…………………………………………………………………………………………………………. 11
7.3 SWITCHES AND CONTROL LIGHTS PANEL……………………………………………………………………… 12
7.4 SWITCHES AND WARNING LAMPS………………………………………………………………………………….. 13
7.5 MONITOR PANEL……………………………………………………………………………………………………………. 14
7.6 KEY START SWITCH……………………………………………………………………………………………………….. 26
7.7 LEFT CONTROL LEVER…………………………………………………………………………………………………… 27
7.8 RIGHT-HAND CONTROL LEVER………………………………………………………………………………………. 28
7.9 CONTROL PANEL AND SWITCHES………………………………………………………………………………….. 29
7.10 MACHINE CONTROL CARD …………………………………………………………………………………………….. 32
7.11 PUMP CONTROL CARD…………………………………………………………………………………………………… 34
8. ELECTRIC COMPONENTS ……………………………………………………………………………………………………… 36
8.1 THROTTLE LEVER CONTROL …………………………………………………………………………………………. 36
8.2 SWIVEL JOINT………………………………………………………………………………………………………………… 37
8.3 BATTERIES…………………………………………………………………………………………………………………….. 38
8.4 GENERATOR………………………………………………………………………………………………………………….. 39
8.5 STARTER……………………………………………………………………………………………………………………….. 40
9. CONTROL LINE AND WIRING HARNESSES …………………………………………………………………………….. 41
9.1 CONTROLS ON CONSOLES ……………………………………………………………………………………………. 41
9.2 CONTROLS FOR SIDE PANEL SWITCHES……………………………………………………………………….. 49
9.3 ANTI-TILTING CHECK CONTROL LINE …………………………………………………………………………….. 51
9.4 WORKING LIGHTS CONTROL LINE………………………………………………………………………………….. 52
9.5 TRAFFIC BEAMS CONTROL LINE…………………………………………………………………………………….. 53
9.6 STEERING COLUMN CONTROLS…………………………………………………………………………………….. 58
SECTION 09 – TROUBLESHOOTING
1. INTRODUCTION ………………………………………………………………………………………………………………………. 1
2. HYDRAULIC SYSTEM TROUBLESHOOTING ……………………………………………………………………………… 3
3. ELECTRICAL SYSTEM TROUBLESHOOTING…………………………………………………………………………… 28
SECTION 10 – PERFORMANCE TEST
1. INTRODUCTION ………………………………………………………………………………………………………………………. 1
1.1 GENERAL INFORMATION FOR MACHINE TESTING……………………………………………………………. 1
2. STANDARD PERFORMANCES – WX95………………………………………………………………………………………. 3
2.1 TABLE OF EXCAVATOR STANDARD PERFORMANCES ……………………………………………………… 3
2.2 HYDRAULIC COMPONENTS STANDARD PERFORMANCE………………………………………………….. 5
2.3 MAIN PUMP P-Q CURVE……………………………………………………………………………………………………. 6
3. STANDARD PERFORMANCES – WX125…………………………………………………………………………………….. 7
3.1 TABLE OF EXCAVATOR STANDARD PERFORMANCES ……………………………………………………… 7
3.2 HYDRAULIC COMPONENTS STANDARD PERFORMANCE………………………………………………….. 9
3.3 MAIN PUMP P-Q CURVE………………………………………………………………………………………………….. 10
4. PREPARATION FOR PERFORMANCE TEST…………………………………………………………………………….. 11
5. EXCAVATOR PERFORMANCE TEST……………………………………………………………………………………….. 13
5.1 ENGINE PERFORMANCE ………………………………………………………………………………………………… 13
5.2 SWING PERFORMANCE………………………………………………………………………………………………….. 14
5.3 FRONT ATTACHMENT PERFORMANCE…………………………………………………………………………… 18
5.4 CONTROL LEVERS …………………………………………………………………………………………………………. 21
6. BOOM/SLEW PERFORMANCE………………………………………………………………………………………………… 22
6.1 COMBINED SLEW/BOOM TEST ……………………………………………………………………………………….. 22
6.2 STEERING………………………………………………………………………………………………………………………. 23
6.3 BRAKES SYSTEM……………………………………………………………………………………………………………. 24
7. GEAR BOX …………………………………………………………………………………………………………………………….. 27
7.1 GEAR BOX PRESSURE CHECK……………………………………………………………………………………….. 27
8. COMPONENTS PERFORMANCE …………………………………………………………………………………………….. 28
8.1 OVERPRESSURE VALVE AND PILOT CONTROL LINE………………………………………………………. 28
8.2 OVERPRESSURE RELIEF VALVES ………………………………………………………………………………….. 30
8.3 DRIVE SHAFT …………………………………………………………………………………………………………………. 33
8.4 HYDRAULIC PUMPS – WX95 ……………………………………………………………………………………………. 35
8.5 HYDRAULIC PUMPS – WX125 ………………………………………………………………………………………….. 37
8.6 TRAVEL MOTOR……………………………………………………………………………………………………………… 39

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