Wacker Neuson SW16, SW17, SW20, SW21, ST28, ST31 Medium Frame Skid Steer Loader Compact Track Loader With Tier 4 Engine Service Manual – PDF DOWNLOAD
IMAGES PREVIEW OF THE MANUAL:
DESCRIPTION:
Wacker Neuson SW16, SW17, SW20, SW21, ST28, ST31 Medium Frame Skid Steer Loader Compact Track Loader With Tier 4 Engine Service Manual – PDF DOWNLOAD
Foreword
General
- This manual provides detailed information and procedures to safely repair and maintain the following: Wacker Neuson Medium Frame Skid Steer Loader (SSL) and Compact Track Loader (CTL).
- This manual is intended to introduce and guide the user through the latest factory-approved troubleshooting and repair techniques and practices. Before you attempt to troubleshoot or make repairs, you must be familiar with the operation of this machine. Refer to the operator’s manual for specific information on these topics.
- THE INFORMATION CONTAINED IN THIS MANUAL IS BASED ON MACHINES MANUFACTURED UP TO THE TIME OF PUBLICATION. WACKER NEUSON RESERVES THE RIGHT TO CHANGE ANY OF THIS INFORMATION WITHOUT NOTICE.
Trademark Acknowledgment
Wacker Neuson acknowledges the following trademarks for company names or products mentioned within this
publication:
Lubriplate® is a trademark of Fiske Brothers Refining
Co.
Loctite® and Permatex® are trademarks of Henkel
Corporation.
How to Use This Manual
This manual is designed to provide multiple ways to locate and access repair information. Read each section in its entirety before beginning a procedure. Proper understanding of machine operation and components is the key to successful diagnostics and repair. Make use of special information features within this manual in order to be better prepared to perform repairs. Always follow manual procedures and safety guidelines. Never take shortcuts
Safety
Introduction
Safety is the most important element of any repair procedure. Knowledge of the procedure to be performed and safe work habits are essential to preventing death, personal injury, or property damage. Use the following statements as a common-sense guide to proper work and tool-use habits
Preparing for the Job
Preparation is essential to complete a procedure in a safe and efficient manner
TABLE OF CONTENTS:
Wacker Neuson SW16, SW17, SW20, SW21, ST28, ST31 Medium Frame Skid Steer Loader Compact Track Loader With Tier 4 Engine Service Manual – PDF DOWNLOAD
Foreword 3
Foreword 3
Safety 4
Introduction 4
Preparing for the Job 4
Service Training 4
Repair Person Qualifications 4
Personal Protective Equipment (PPE) 4
Personal Safety Measures 4
Precautions 4
Cleaning 4
Preparing Machine for Maintenance 5
General Maintenance Notes 5
Machine Modifications 5
Safety Symbols Found In This Manual 6
Safety Label Locations 6
Safety Label Inspection 14
Keep Work Area Clean 14
Keep Work Area Well Ventilated 15
Use Proper Eye and Face Protection 15
Park Machine Safely 15
Use Lifting Equipment Safely 15
Support Machine Securely 16
Use Compressed Air and Air
Tools Safely
16
Service Tires Safely 16
Handle Fuel Safely 16
Store Volatile and Hazardous Materials Safely 17
Handle Chemical Products Safely 17
Service Hydraulic System Safely 17
Service Cooling System Safely 17
Service Electrical Components
Safely
18
Dispose of Waste Materials
Safely
18
Specifications and General Information 21
Commonly Used Terms 22
Commonly Used Terms 22
Standard Torque Values 22
Torque Values 22
SAE Standard Fasteners Torque Limits 23
Metric Fasteners Torque Limits 24
Using a Torque Wrench Extension 25
Track and Tire Maintenance 25
Track and Tire Maintenance 25
Service Information 26
Fluids 27
Maintenance Kits 28
Service Schedule 29
Electrical 31
Specifications 34
Test and Adjustment Specifications 34
Dielectric Sealant Locations 35
Commonly Used Terms 36
Electrical Components Symbols/How to Read Schematic 36
Electrical Component Symbols 36
Switches¹ 37
Switching Devices 37
Circuit Protection Devices 38
Motors and Generating Devices 38
Actuating Devices 39
Lights 39
Miscellaneous Symbols 39
Electrical Schematic Component Identification 41
Electrical Schematic Component Identification 41
Electrical Schematic 43
Theory of Operation and Sub Circuit Schematics 74
Machine Power Circuit—Theory of Operation 74
Unswitched Power 74
Interlock Circuit 74
Switched Power 75
Machine Power Circuit Schematic 75
Start Circuit—Theory of Operation104
Unswitched Power104
Switched Power104
Start Circuit104
Start Circuit Schematic105
Run Circuit—Theory of Operation106
Unswitched Power106
Switched Power106
Run Circuit106
Run Circuit Schematic107
Charging Circuit—Theory of Operation108
Unswitched Power Circuit108
Charging Circuit108
Charging Circuit Schematic109
Drive Circuit—Forward Theory of Operation
(ISO-Mode)
111
Unswitched Power Circuit 111
Interlock Circuit111
Switched Power111
Forward Circuit111
Drive Circuit Forward Schematic (ISO-Mode)112
Drive Circuit—Forward Theory of Operation
(H-Mode)
115
Unswitched Power Circuit 115
Interlock Circuit115
Switched Power115
Forward Circuit115
Drive Circuit Forward Schematic (H-Mode)116
Drive Circuit—Reverse Theory of Operation
(ISO-Mode)
119
Unswitched Power Circuit 119
Interlock Circuit119
Switched Power119
Reverse Circuit119
Drive Circuit Reverse Schematic (ISO) 120
Drive Circuit—Reverse Theory of Operation
(H-Mode)
123
Unswitched Power Circuit 123
Interlock Circuit123
Switched Power123
Reverse Circuit123
Drive Circuit Reverse Schematic (H-Mode)124
Drive Circuit—Right Turn Theory of Operation
(ISO-Mode)
127
Unswitched Power Circuit 127
Interlock Circuit127
Switched Power127
Right Turn Circuit127
Drive Circuit Right Turn Schematic (ISO-Mode)128
Drive Circuit—Right Turn Theory of Operation
(H-Mode)
131
Unswitched Power Circuit 131
Interlock Circuit131
Switched Power131
Right Turn Circuit131
Drive Circuit Right Turn Schematic (H-Mode)132
Drive Circuit—Left Turn Theory of Operation
(ISO-Mode)
135
Unswitched Power Circuit 135
Interlock Circuit135
Switched Power135
Left Turn Circuit135
Drive Circuit Left Turn Schematic (ISO-Mode)136
Drive Circuit—Left Turn Theory of Operation
(H-Mode)
139
Unswitched Power Circuit 139
Interlock Circuit139
Switched Power139
Left Turn Circuit139
Drive Circuit Left Turn Schematic (H-Mode)140
Drive Circuit—Two Speed Theory of Operation 143
Unswitched Power Circuit 143
Interlock Circuit143
Switched Power143
Two Speed Circuit143
Drive Circuit Two Speed Schematic144
Drive Circuit—Creep Mode Theory of Operation 147
Unswitched Power Circuit 147
Interlock Circuit147
Switched Power147
Creep Mode Circuit147
Drive Circuit Creep Mode Schematic148
Boom Controls Circuit—Theory of Operation (ISO-Mode)151
Unswitched Power Circuit 151
Interlock Circuit151
Switched Power151
Boom Circuit151
Boom Controls Circuit Schematic (ISO-Mode)152
Boom Controls Circuit—Theory of Operation (H-Mode)155
Unswitched Power Circuit 155
Interlock Circuit155
Switched Power155
Boom Circuit155
Boom Controls Circuit Schematic (H-Mode)156
Boom Controls Circuit—Theory of Operation (Manual Controls)159
Unswitched Power Circuit 159
Interlock Circuit159
Switched Power159
Boom Circuit159
Boom Controls Circuit Schematic (Manual Controls)160
Bucket Controls Circuit—Theory of Operation (ISO-Mode)163
Unswitched Power Circuit 163
Interlock Circuit163
Switched Power163
Bucket Circuit163
Bucket Controls Circuit Schematic (ISO-Mode)164
Bucket Controls Circuit—Theory of Operation (H-Mode)167
Unswitched Power Circuit 167
Interlock Circuit167
Switched Power167
Bucket Circuit167
Bucket Controls Circuit Schematic (H-Mode)168
Bucket Controls Circuit—Theory of Operation (Manual Controls)171
Unswitched Power Circuit 171
Interlock Circuit171
Switched Power171
Bucket Circuit171
Bucket Controls Circuit Schematic (Manual Controls)172
Ride Control Circuit—Theory of Operation174
Unswitched Power Circuit 174
Interlock Circuit174
Switched Power174
Ride Control Circuit174
Ride Control Circuit Schematic175
Float Control Circuit—Theory of Operation179
Unswitched Power Circuit 179
Interlock Circuit179
Switched Power179
Float Control Circuit179
Float Control Circuit Schematic 180
Self Level Circuit—Theory of Operation 183
Unswitched Power Circuit 183
Interlock Circuit183
Switched Power183
Self Level Circuit183
Self Level Circuit Schematic184
Auxiliary Hydraulics Female Coupler Circuit—Theory of Operation187
Unswitched Power Circuit 187
Interlock Circuit187
Switched Power187
Auxiliary Hydraulics Female Coupler Circuit187
Auxiliary Hydraulics Female Coupler Circuit Schematic188
Auxiliary Hydraulics Male Coupler Circuit—Theory of Operation191
Unswitched Power Circuit 191
Interlock Circuit191
Switched Power191
Auxiliary Hydraulics Male Coupler Circuit191
Auxiliary Hydraulics Male Coupler Circuit Schematic192
High Flow Auxiliary Hydraulics Female Coupler Circuit—Theory of Operation195
Unswitched Power Circuit 195
Interlock Circuit195
Switched Power195
High Flow Auxiliary Hydraulics Female Coupler Circuit195
High Flow Auxiliary Hydraulics Female Coupler Circuit Schematic196
High Flow Auxiliary Hydraulics Male Coupler Circuit—Theory of Operation199
Unswitched Power Circuit 199
Interlock Circuit199
Switched Power199
High Flow Auxiliary Hydraulics Male Coupler Circuit199
High Flow Auxiliary Hydraulics Male Coupler Circuit Schematic200
Work Lights Circuit—Theory of Operation202
Unswitched Power Circuit202
Switched Power Circuit202
Work Lights Circuit202
Work Lights Circuit Schematic203
Transport Lights Circuit—Theory of Operation204
Unswitched Power Circuit204
Switched Power Circuit204
Transport Lights Circuit204
Transport Lights Circuit Schematic205
Instrumentation—Theory of
Operation206
Unswitched Power Circuit206
Fuel Level Sensor Circuit206
Battery Charge Circuit206
Controller Area Network (CAN) Instrumentation206
Instrumentation Schematic207
Horn Circuit—Theory of Operation208
Unswitched Power Circuit208
Horn Circuit208
Horn Circuit Schematic209
Backup Audible Alarm Circuit—Theory of Operation (Electronic Controls)211
Unswitched Power Circuit
211
Interlock Circuit211
Switched Power211
Backup Audible Alarm Circuit211
Backup Audible Alarm Circuit Schematic (Electronic Controls)212
Backup Audible Alarm Circuit—Theory of Operation (Manual Controls)215
Unswitched Power Circuit215
Interlock Circuit215
Switched Power215
Backup Audible Alarm Circuit215
Backup Audible Alarm Circuit Schematic (Manual Controls) 216
Troubleshooting217
Start Circuit218
Run Circuit219
Charging Circuit219
Drive Circuit220
Boom Controls Circuit222
Bucket Controls Circuit223
Ride Control Circuit223
Float Control Circuit224
Self Level Circuit224
Auxiliary Hydraulics226
Lighting Circuit226
Instrumentation227
Horn Circuit227
Backup Audible Alarm Circuit228
Component Testing229
Relay Test230
Key Switch Test231
Horn Switch Test232
Seat Switch Test232
Park Brake Switch Test233
Heating, Ventilation, and Air Conditioning (HVAC) Blower Fan Switch Test233
Heating, Ventilation, and Air Conditioning (HVAC) Switch Test235
Heating, Ventilation, and Air Conditioning (HVAC) Temperature Switch Test236
A/B/C Mode Switch Test237
Auxiliary Electric Switch Test238
Beacon Switch Test239
Self Level Switch Test239
Power Coupler Switch Test240
H/ISO Pattern Selection Switch Test241
Standard/High Flow Selection Switch Test242
Work Lights Switch Test243
Fuel Level Sensor Test244
Door Switch Test245
Pressure Transducer Test245
Repair246
Backup Audible Alarm Adjustment Procedure246
Adjustment Procedure246
Battery247
Removal and Installation247
Alternator247
Removal and Installation247
Starter249
Removal and Installation249
Standard Instrument Display250
Removal and Installation250
Deluxe Instrument Display251
Removal and Installation251
Relay252
Removal and Installation252
Key Switch/Keyless Ignition Switch252
Removal and Installation252
Rocker Switch254
Removal and Installation254
Hand Throttle Control255
Removal and Installation255
Joystick256
Removal and Installation256
Air Filter Restriction Switch256
Removal and Installation256
Hydraulic Oil Temperature Sensor257
Removal and Installation257
Engine Oil Pressure Switch258
Removal and Installation258
Engine Coolant Temperature Sensor258
Removal and Installation258
100-Amp Main Fuse260
Removal and Installation260
Horn260
Removal and Installation260
Fuel Level Sensor261
Removal and Installation261
Door Switch262
Removal and Installation262
Pressure Transducer262
Removal and Installation262
Hydrostatic Power Train265
Specification268
Portable In-Line Filter268
Portable In-Line Filter268
Repair Specifications268
Test and Adjustment Specifications268
Commonly Used Terms268
Component Location269
Component Location269
Hydrostatic Power Train Schematics270
Hydrostatic Schematic (Wheeled Machine with Electronic Controls)271
Hydrostatic Schematic (Track Machine with Electronic Controls)272
Hydrostatic Schematic (Wheeled Machine with Manual Controls)273
Hydrostatic Schematic (Track Machine with Manual Controls)274
Theory of Operation and Diagnostic Information276
Drive Circuit—Neutral Theory of Operation (Wheeled Machine with Electronic Controls)276
Hydrostatic Drive Pump Charge Circuit276
Neutral Circuit276
Drive Circuit Neutral Schematic (Wheeled Machine with Electronic Controls)277
Drive Circuit—Neutral Theory of Operation (Track Machine with Electronic Controls)278
Hydrostatic Drive Pump Charge Circuit278
Neutral Circuit278
Drive Circuit Neutral Schematic (Track Machine with Electronic Controls)279
Drive Circuit—Neutral Theory of Operation (Wheeled Machine with Manual Controls)280
Hydrostatic Drive Pump Charge Circuit280
Neutral Circuit280
Drive Circuit Neutral Schematic (Wheeled Machine with Manual Controls)281
Drive Circuit—Neutral Theory of Operation (Track Machine with Manual Controls)282
Hydrostatic Drive Pump Charge Circuit282
Neutral Circuit282
Drive Circuit Neutral Schematic (Track Machine with Manual Controls)283
Drive Circuit—Forward Theory of Operation (Wheeled Machine with Electronic Controls)284
Hydrostatic Drive Pump Charge Circuit284
Forward Theory of Operation284
Drive Circuit Forward Schematic (Wheeled Machine with Electronic Controls)285
Drive Circuit—Forward Theory of Operation (Track Machine with Electronic Controls)286
Hydrostatic Drive Pump Charge Circuit286
Forward Theory of Operation286
Drive Circuit Forward Schematic (Track Machine with Electronic Controls)287
Drive Circuit—Forward Theory of Operation (Wheeled Machine with Manual Controls)288
Hydrostatic Drive Pump Charge Circuit288
Forward Theory of Operation288
Drive Circuit Forward Schematic (Wheeled Machine with Manual Controls)289
Drive Circuit—Forward Theory of Operation (Track Machine with Manual Controls)290
Hydrostatic Drive Pump Charge Circuit290
Forward Theory of Operation290
Drive Circuit Forward Schematic (Track Machine with Manual Controls)291
Drive Circuit—Reverse Theory of Operation (Wheeled Machine with Electronic Controls)292
Hydrostatic Drive Pump Charge Circuit292
Reverse Theory of Operation292
Drive Circuit Reverse Schematic (Wheeled Machine with Electronic Controls)293
Drive Circuit—Reverse Theory of Operation (Track Machine with Electronic Controls)294
Hydrostatic Drive Pump Charge Circuit294
Reverse Theory of Operation294
Drive Circuit Reverse Schematic (Track Machine with Electronic Controls)295
Drive Circuit—Reverse Theory of Operation (Wheeled Machine with Manual Controls)296
Hydrostatic Drive Pump Charge Circuit296
Reverse Theory of Operation296
Drive Circuit Reverse Schematic (Wheeled Machine with Manual Controls)297
Drive Circuit—Reverse Theory of Operation (Track Machine with Manual Controls)298
Hydrostatic Drive Pump Charge Circuit298
Reverse Theory of Operation298
Drive Circuit Reverse Schematic (Track Machine with Manual Controls)299
Drive Circuit—Right Turn Theory of Operation (Wheeled Machine with Electronic Controls)300
Hydrostatic Drive Pump Charge Circuit300
Right Turn Circuit300
Drive Circuit Right Turn Schematic (Wheeled Machine with Electronic Controls)301
Drive Circuit—Right Turn Theory of Operation (Track Machine with Electronic Controls)302
Hydrostatic Drive Pump Charge Circuit302
Right Turn Circuit302
Drive Circuit Right Turn Schematic (Track Machine with Electronic Controls)303
Drive Circuit—Right Turn Theory of Operation (Wheeled Machine with Manual Controls)304
Hydrostatic Drive Pump Charge Circuit304
Right Turn Circuit304
Drive Circuit Right Turn Schematic (Wheeled Machine with Manual Controls)305
Drive Circuit—Right Turn Theory of Operation (Track Machine with Manual Controls)306
Hydrostatic Drive Pump Charge Circuit306
Right Turn Circuit306
Drive Circuit Right Turn Schematic (Track Machine with Manual Controls)307
Drive Circuit—Left Turn Theory of Operation (Wheeled Machine with Electronic Controls)308
Hydrostatic Drive Pump Charge Circuit308
Left Turn Circuit308
Drive Circuit Left Turn Schematic (Wheeled Machine with Electronic Controls)309
Drive Circuit—Left Turn Theory of Operation (Track Machine with Electronic Controls)310
Hydrostatic Drive Pump Charge Circuit310
Left Turn Circuit310
Drive Circuit Left Turn Schematic (Track Machine with Electronic Controls)311
Drive Circuit—Left Turn Theory of Operation (Wheeled Machine with Manual Controls)312
Hydrostatic Drive Pump Charge Circuit312
Left Turn Circuit312
Drive Circuit Left Turn Schematic (Wheeled Machine with Manual Controls)313
Drive Circuit—Left Turn Theory of Operation (Track Machine with Manual Controls)314
Hydrostatic Drive Pump Charge Circuit314
Left Turn Circuit314
Drive Circuit Left Turn Schematic (Track Machine with Manual Controls)315
Drive Circuit—Brake Valve Theory of Operation (Wheeled Machine with Electronic Controls)316
Oil Supply to Brake Valve316
Brake Valve Circuit316
Drive Circuit Brake Valve Schematic (Wheeled Machine with Electronic Controls)317
Drive Circuit—Brake Valve Theory of Operation (Track Machine with Electronic Controls)318
Oil Supply to Brake Valve318
Brake Valve Circuit318
Drive Circuit Brake Valve Schematic (Track Machine with Electronic Controls)319
Drive Circuit—Brake Valve Theory of Operation (Wheeled Machine with Manual Controls)320
Oil Supply to Brake Valve320
Brake Valve Circuit320
Drive Circuit Brake Valve Schematic (Wheeled Machine with Manual Controls)321
Drive Circuit—Brake Valve Theory of Operation (Track Machine with Manual Controls)322
Oil Supply to Brake Valve322
Brake Valve Circuit322
Drive Circuit Brake Valve Schematic (Track Machine with Manual Controls)323
Drive Circuit—Two Speed Valve Theory of Operation (Wheeled Machine with Electronic Controls)324
Hydrostatic Drive Pump Charge Circuit324
Oil Supply to Two Speed Valve 324
Two Speed Valve Circuit324
Drive Circuit Two Speed Valve Schematic (Wheeled Machine with Electronic Controls)325
Drive Circuit—Two Speed Valve Theory of Operation (Track Machine with Electronic Controls)326
Hydrostatic Drive Pump Charge Circuit326
Oil Supply to Two Speed Valve326
Two Speed Valve Circuit326
Drive Circuit Two Speed Valve Schematic (Track Machine with Electronic Controls)327
Drive Circuit—Two Speed Valve Theory of Operation (Wheeled Machine with Manual Controls)328
Hydrostatic Drive Pump Charge Circuit328
Oil Supply to Two Speed Valve328
Two Speed Valve Circuit328
Drive Circuit Two Speed Valve Schematic (Wheeled Machine with Manual Controls)329
Drive Circuit—Two Speed Valve Theory of Operation (Track Machine with Manual Controls)330
Hydrostatic Drive Pump Charge Circuit330
Oil Supply to Two Speed Valve330
Two Speed Valve Circuit330
Drive Circuit Two Speed Valve Schematic (Track Machine with Manual Controls)331
Troubleshooting331
Troubleshooting332
Test and Adjustments337
Test Procedures Overview337
Preliminary Checks337
Charge Pressure Test338
Charge Pressure Test (Electronic Controls)338
Charge Pressure Test (Manual Controls)340
Charge Pressure System Test342
Charge Pressure Relief Valve Test343
Park Brake Circuit Test346
Mechanical Hydrostatic Pump Centering Procedure348
Adjustment Procedure348
Repair349
Hydrostatic Drive Pump (Machines with Manual Controls)349
Removal and Installation349
Hydrostatic Drive Pump (Machines with Electronic Controls)351
Removal and Installation351
Brake Valve353
Removal and Installation353
Brake Valve/Two Speed Valve (Optional)355
Removal and Installation355
Right Drive Motor (One Speed Wheeled Machine)357
Removal and Installation357
Left Drive Motor (One Speed Wheeled Machine)359
Removal and Installation359
Right Drive Motor (Two Speed Wheeled Machine)361
Removal and Installation361
Left Drive Motor (Two Speed Wheeled Machine)363
Removal and Installation363
Drive Motor (One Speed Track Machine)365
Removal and Installation365
Drive Motor (Two Speed Track Machine)367
Removal and Installation367
Hydraulics371
Specifications373
Test and Adjustment Specifications373
Repair Specifications373
Commonly Used Terms373
Component Location374
Component Location374
Hydraulic Schematic378
Hydraulic Schematic (Wheeled Machine with Electronic Controls)379
Hydraulic Schematic (Track Machine with Electronic Controls)380
Hydraulic Schematic (Wheeled Machine with Manual Controls)381
Hydraulic Schematic (Track Machine with Manual Controls)382
Theory of Operation and Diagnostic Information384
Boom Raise Circuit—Theory of Operation
384
Oil Supply to Main Control Valve384
Boom Raise Circuit384
Circuit Relief384
Boom Raise Circuit Schematic385
Boom Lower Circuit—Theory of
Operation
386
Oil Supply to Main Control Valve386
Boom Lower Circuit386
Circuit Relief386
Boom Lower Circuit Schematic387
Mechanical Boom Lower Circuit—Theory of Operation388
Mechanical Boom Lower Circuit388
Mechanical Boom Lower Circuit Schematic389
Bucket Curl Circuit—Theory of Operation390
System Conditions390
Oil Supply to Bucket Valve390
Bucket Curl Circuit390
Circuit Relief390
Bucket Curl Circuit Schematic391
Bucket Dump Circuit—Theory of Operation392
System Conditions392
Oil Supply to Main Control Valve392
Bucket Curl Circuit392
Circuit Relief392
Bucket Dump Circuit Schematic393
Fan Motor (One Speed) Circuit—Theory of Operation 394
Fan Motor Circuit394
Fan Motor (One Speed) Circuit Schematic395
Variable Speed Fan Motor (High Speed) Circuit—Theory of Operation 396
Fan Motor High Speed Circuit396
Variable Speed Fan Motor (High Speed) Circuit Schematic 397
Variable Speed Fan Motor (Low Speed) Circuit—Theory of Operation 398
Fan Motor Low Speed Circuit398
Variable Speed Fan Motor (Low Speed) Circuit Schematic 399
Ride Control Circuit—Theory of Operation 400
Ride Control Charging Circuit400
Ride Control Balancing Circuit400
Ride Control Active Circuit400
Ride Control Circuit Schematic401
Self Leveling Circuit—Theory of Operation404
Oil Supply to Main Control Valve404
Self Leveling Circuit404
Circuit Relief404
Self Leveling Circuit Schematic405
Power Coupler Lock Circuit—Theory of Operation406
Oil Supply to Power Coupler406
Power Coupler Lock Circuit406
Power Coupler Circuit Safety406
Power Coupler Lock Circuit Schematic407
Power Coupler Unlock Circuit—Theory of Operation408
Oil Supply to Power Coupler408
Power Coupler Lock Circuit408
Power Coupler Circuit Safety408
Power Coupler Unlock Circuit Schematic409
Auxiliary Hydraulics Female Coupler Circuit—Theory of Operation410
Oil Supply to Main Control Valve410
Auxiliary Hydraulics to Female Connector Circuit410
Circuit Relief410
Auxiliary Hydraulics Female Coupler Circuit Schematic411
Auxiliary Hydraulics Male Coupler Circuit—Theory of Operation 412
Oil Supply to Main Control Valve412
Auxiliary Hydraulics to Male Connector Circuit412
Circuit Relief412
Auxiliary Hydraulics Male Coupler Circuit Schematic413
High Flow Auxiliary Hydraulics Female Coupler Circuit—Theory of Operation
414
System Conditions:414
Oil Supply to Main Control Valve414
Auxiliary Hydraulics to Female Connector Circuit414
Circuit Relief414
High Flow Auxiliary Hydraulics Female Coupler Circuit Schematic415
High Flow Auxiliary Hydraulics Male Coupler Circuit—Theory of Operation
416
System Conditions:416
Oil Supply to Main Control Valve416
Auxiliary Hydraulics to Male Connector Circuit416
Circuit Relief416
High Flow Auxiliary Hydraulics Male Coupler Circuit Schematic417
Troubleshooting417
Troubleshooting418
Test and Adjustments420
Test Procedures Overview420
Preliminary Checks420
Boom Cylinder Leakage Test421
Bucket Cylinder Leakage Test422
Auxiliary Hydraulics Flow Test423
Auxiliary Hydraulics Flow Test423
High Flow Auxiliary Hydraulics Flow Test424
High Flow Auxiliary Hydraulics Flow Test424
Hydraulic System Main Relief Valve Test and Adjustment426
Hydraulic System Main Relief Valve Test426
Main Relief Valve Adjustment427
Hydraulic Cylinder Pressure Test428
Gear Pump Test430
Gear Pump Test (Three Section)430
Gear Pump Test (Two Section)432
Repair434
Hydraulic Oil Tank Drain/Fill Procedure434
Drain/Fill434
Hydraulic Oil Tank436
Removal and Installation436
Gear Pump (Two Section)438
Removal and Installation438
Gear Pump (Three Section)439
Removal and Installation439
Fan Motor (One Speed)440
Removal and Installation440
Fan Motor (Variable Speed)442
Removal and Installation442
Cooling Assembly444
Removal and Installation444
Hydraulic Oil Filter Housing446
Removal and Installation446
Main Control Valve448
Removal and Installation448
Mechanical Boom Lower Valve450
Removal and Installation450
Ride Control Valve452
Removal and Installation452
Self Leveling Valve454
Removal and Installation454
Power Coupler Valve455
Removal and Installation455
Power Coupler Cylinder456
Removal and Installation456
Bucket Cylinder457
Removal and Installation457
Boom Cylinders458
Removal and Installation458
WANDA Diagnostics and Configuration461
Diagnostics462
Drive Pump Calibration462
Straight Tracking469
EDC Threshold Tuning474
Swash Plate Angle Sensor (SPAS) Override479
Configuration483
Creating a Workgroup Profile483
Creating Drive Profile487
Machine Configuration491
Index495
Numerics495
A495
B495
C496
D496
E499
F499
G499
H499
I500
J500
K500
L500
M501
P501
R501
S501
T502
V502
W502
VIDEO PREVIEW OF THE MANUAL:
PLEASE NOTE:
- This is not a physical manual but a digital manual – meaning no physical copy will be couriered to you. The manual can be yours in the next 2 mins as once you make the payment, you will be directed to the download page IMMEDIATELY.
- This is the same manual used by the dealers inorder to diagnose your vehicle of its faults.
- Require some other service manual or have any queries: please WRITE to us at [email protected]