Wacker Neuson Medium Frame Skid Steer Loader / Compact Track Loader With Tier 4 Engine Service Manual – PDF DOWNLOAD

Description

Wacker Neuson Medium Frame Skid Steer Loader / Compact Track Loader With Tier 4 Engine Service Manual – PDF DOWNLOAD

FILE DETAILS:

Wacker Neuson Medium Frame Skid Steer Loader / Compact Track Loader With Tier 4 Engine Service Manual – PDF DOWNLOAD

Language : English
Pages : 504
Downloadable : Yes
File Type : PDF
Size: 46.6 MB

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DESCRIPTION:

Wacker Neuson 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.

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.
Table of Contents:
Major machine components or topics of interest are separated into specific chapters. Each manual lists these chapters in a main Table of Contents.
Chapter Table of Contents:
Each chapter begins with a detailed Table of Contents related to the specific machine component or system. Use the Chapter Table of Contents to find specific component procedural information.
Index:
An alphabetical Index is located at the back of the manual. Use the Index to fined specific components and related procedures.

TABLE OF CONTENTS:

Wacker Neuson 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 Operation 104
Unswitched Power 104
Switched Power 104
Start Circuit 104
Start Circuit Schematic 105
Run Circuit—Theory of Operation 106
Unswitched Power 106
Switched Power 106
Run Circuit 106
Run Circuit Schematic 107
Charging Circuit—Theory of Operation 108
Unswitched Power Circuit 108
Charging Circuit 108
Charging Circuit Schematic 109
Drive Circuit—Forward Theory of Operation
(ISO-Mode)
111
Unswitched Power Circuit 111
Interlock Circuit 111
Switched Power 111
Forward Circuit 111
Drive Circuit Forward Schematic (ISO-Mode) 112
Drive Circuit—Forward Theory of Operation
(H-Mode)
115
Unswitched Power Circuit 115
Interlock Circuit 115
Switched Power 115
Forward Circuit 115
Drive Circuit Forward Schematic (H-Mode) 116
Drive Circuit—Reverse Theory of Operation
(ISO-Mode)
119
Unswitched Power Circuit 119
Interlock Circuit 119
Switched Power 119
Reverse Circuit 119
Drive Circuit Reverse Schematic (ISO) 120
Drive Circuit—Reverse Theory of Operation
(H-Mode)
123
Unswitched Power Circuit 123
Interlock Circuit 123
Switched Power 123
Reverse Circuit 123
Drive Circuit Reverse Schematic (H-Mode) 124
Drive Circuit—Right Turn Theory of Operation
(ISO-Mode)
127
Unswitched Power Circuit 127
Interlock Circuit 127
Switched Power 127
Right Turn Circuit 127

Drive Circuit Right Turn Schematic (ISO-Mode) 128
Drive Circuit—Right Turn Theory of Operation
(H-Mode)
131
Unswitched Power Circuit 131
Interlock Circuit 131
Switched Power 131
Right Turn Circuit 131

Drive Circuit Right Turn Schematic (H-Mode) 132
Drive Circuit—Left Turn Theory of Operation
(ISO-Mode)
135
Unswitched Power Circuit 135
Interlock Circuit 135
Switched Power 135
Left Turn Circuit 135

Drive Circuit Left Turn Schematic (ISO-Mode) 136
Drive Circuit—Left Turn Theory of Operation
(H-Mode)
139
Unswitched Power Circuit 139
Interlock Circuit 139
Switched Power 139
Left Turn Circuit 139

Drive Circuit Left Turn Schematic (H-Mode) 140
Drive Circuit—Two Speed Theory of Operation 143
Unswitched Power Circuit 143
Interlock Circuit 143
Switched Power 143
Two Speed Circuit 143
Drive Circuit Two Speed Schematic 144
Drive Circuit—Creep Mode Theory of Operation 147
Unswitched Power Circuit 147
Interlock Circuit 147
Switched Power 147
Creep Mode Circuit 147
Drive Circuit Creep Mode Schematic 148
Boom Controls Circuit—Theory of Operation (ISO-Mode) 151
Unswitched Power Circuit 151
Interlock Circuit 151
Switched Power 151
Boom Circuit 151
Boom Controls Circuit Schematic (ISO-Mode) 152
Boom Controls Circuit—Theory of Operation (H-Mode) 155
Unswitched Power Circuit 155
Interlock Circuit 155
Switched Power 155
Boom Circuit 155
Boom Controls Circuit Schematic (H-Mode) 156
Boom Controls Circuit—Theory of Operation (Manual Controls) 159
Unswitched Power Circuit 159
Interlock Circuit 159
Switched Power 159
Boom Circuit 159
Boom Controls Circuit Schematic (Manual Controls) 160
Bucket Controls Circuit—Theory of Operation (ISO-Mode) 163
Unswitched Power Circuit 163
Interlock Circuit 163
Switched Power 163
Bucket Circuit 163
Bucket Controls Circuit Schematic (ISO-Mode) 164
Bucket Controls Circuit—Theory of Operation (H-Mode) 167
Unswitched Power Circuit 167
Interlock Circuit 167
Switched Power 167
Bucket Circuit 167
Bucket Controls Circuit Schematic (H-Mode) 168
Bucket Controls Circuit—Theory of Operation (Manual Controls) 171
Unswitched Power Circuit 171
Interlock Circuit 171
Switched Power 171
Bucket Circuit 171
Bucket Controls Circuit Schematic (Manual Controls) 172
Ride Control Circuit—Theory of Operation 174
Unswitched Power Circuit 174
Interlock Circuit 174
Switched Power 174
Ride Control Circuit 174
Ride Control Circuit Schematic 175
Float Control Circuit—Theory of Operation 179
Unswitched Power Circuit 179
Interlock Circuit 179
Switched Power 179
Float Control Circuit 179
Float Control Circuit Schematic 180
Self Level Circuit—Theory of Operation 183
Unswitched Power Circuit 183
Interlock Circuit 183
Switched Power 183
Self Level Circuit 183
Self Level Circuit Schematic 184
Auxiliary Hydraulics Female Coupler Circuit—Theory of Operation 187
Unswitched Power Circuit 187
Interlock Circuit 187
Switched Power 187
Auxiliary Hydraulics Female Coupler Circuit 187
Auxiliary Hydraulics Female Coupler Circuit Schematic 188
Auxiliary Hydraulics Male Coupler Circuit—Theory of Operation 191
Unswitched Power Circuit 191
Interlock Circuit 191
Switched Power 191
Auxiliary Hydraulics Male Coupler Circuit 191

Auxiliary Hydraulics Male Coupler Circuit Schematic 192
High Flow Auxiliary Hydraulics Female Coupler Circuit—Theory of Operation 195
Unswitched Power Circuit 195
Interlock Circuit 195
Switched Power 195
High Flow Auxiliary Hydraulics Female Coupler Circuit 195
High Flow Auxiliary Hydraulics Female Coupler Circuit Schematic 196
High Flow Auxiliary Hydraulics Male Coupler Circuit—Theory of Operation 199
Unswitched Power Circuit 199
Interlock Circuit 199
Switched Power 199
High Flow Auxiliary Hydraulics Male Coupler Circuit 199
High Flow Auxiliary Hydraulics Male Coupler Circuit Schematic 200
Work Lights Circuit—Theory of Operation 202
Unswitched Power Circuit 202
Switched Power Circuit 202
Work Lights Circuit 202
Work Lights Circuit Schematic 203
Transport Lights Circuit—Theory of Operation 204
Unswitched Power Circuit 204
Switched Power Circuit 204
Transport Lights Circuit 204
Transport Lights Circuit Schematic 205
Instrumentation—Theory of
Operation 206
Unswitched Power Circuit 206
Fuel Level Sensor Circuit 206
Battery Charge Circuit 206
Controller Area Network (CAN) Instrumentation 206
Instrumentation Schematic 207
Horn Circuit—Theory of Operation 208
Unswitched Power Circuit 208
Horn Circuit 208
Horn Circuit Schematic 209
Backup Audible Alarm Circuit—Theory of Operation (Electronic Controls) 211
Unswitched Power Circuit
211
Interlock Circuit 211
Switched Power 211
Backup Audible Alarm Circuit 211
Backup Audible Alarm Circuit Schematic (Electronic Controls) 212
Backup Audible Alarm Circuit—Theory of Operation (Manual Controls) 215
Unswitched Power Circuit 215
Interlock Circuit 215
Switched Power 215
Backup Audible Alarm Circuit 215
Backup Audible Alarm Circuit Schematic (Manual Controls) 216
Troubleshooting 217
Start Circuit 218
Run Circuit 219
Charging Circuit 219
Drive Circuit 220
Boom Controls Circuit 222
Bucket Controls Circuit 223
Ride Control Circuit 223
Float Control Circuit 224
Self Level Circuit 224
Auxiliary Hydraulics 226
Lighting Circuit 226
Instrumentation 227
Horn Circuit 227
Backup Audible Alarm Circuit 228
Component Testing 229
Relay Test 230
Key Switch Test 231
Horn Switch Test 232
Seat Switch Test 232
Park Brake Switch Test 233
Heating, Ventilation, and Air Conditioning (HVAC) Blower Fan Switch Test 233
Heating, Ventilation, and Air Conditioning (HVAC) Switch Test 235
Heating, Ventilation, and Air Conditioning (HVAC) Temperature Switch Test 236
A/B/C Mode Switch Test 237
Auxiliary Electric Switch Test 238
Beacon Switch Test 239
Self Level Switch Test 239
Power Coupler Switch Test 240
H/ISO Pattern Selection Switch Test 241
Standard/High Flow Selection Switch Test 242
Work Lights Switch Test 243
Fuel Level Sensor Test 244
Door Switch Test 245
Pressure Transducer Test 245
Repair 246
Backup Audible Alarm Adjustment Procedure 246
Adjustment Procedure 246
Battery 247
Removal and Installation 247
Alternator 247
Removal and Installation 247
Starter 249
Removal and Installation 249
Standard Instrument Display 250
Removal and Installation 250
Deluxe Instrument Display 251
Removal and Installation 251
Relay 252
Removal and Installation 252
Key Switch/Keyless Ignition Switch 252
Removal and Installation 252
Rocker Switch 254
Removal and Installation 254
Hand Throttle Control 255
Removal and Installation 255
Joystick 256
Removal and Installation 256
Air Filter Restriction Switch 256
Removal and Installation 256
Hydraulic Oil Temperature Sensor 257
Removal and Installation 257
Engine Oil Pressure Switch 258
Removal and Installation 258
Engine Coolant Temperature Sensor 258
Removal and Installation 258
100-Amp Main Fuse 260
Removal and Installation 260
Horn 260
Removal and Installation 260
Fuel Level Sensor 261
Removal and Installation 261
Door Switch 262
Removal and Installation 262
Pressure Transducer 262
Removal and Installation 262
Hydrostatic Power Train 265
Specification 268
Portable In-Line Filter 268
Portable In-Line Filter 268
Repair Specifications 268
Test and Adjustment Specifications 268
Commonly Used Terms 268
Component Location 269
Component Location 269
Hydrostatic Power Train Schematics 270
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 Information 276
Drive Circuit—Neutral Theory of Operation (Wheeled Machine with Electronic Controls) 276
Hydrostatic Drive Pump Charge Circuit 276
Neutral Circuit 276
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 Circuit 278
Neutral Circuit 278
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 Circuit 280
Neutral Circuit 280
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 Circuit 282
Neutral Circuit 282
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 Circuit 284
Forward Theory of Operation 284
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 Circuit 286
Forward Theory of Operation 286
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 Circuit 288
Forward Theory of Operation 288
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 Circuit 290
Forward Theory of Operation 290
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 Circuit 292
Reverse Theory of Operation 292
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 Circuit 294
Reverse Theory of Operation 294
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 Circuit 296
Reverse Theory of Operation 296
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 Circuit 298
Reverse Theory of Operation 298
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 Circuit 300
Right Turn Circuit 300
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 Circuit 302
Right Turn Circuit 302
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 Circuit 304
Right Turn Circuit 304
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 Circuit 306
Right Turn Circuit 306
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 Circuit 308
Left Turn Circuit 308
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 Circuit 310
Left Turn Circuit 310
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 Circuit 312
Left Turn Circuit 312
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 Circuit 314
Left Turn Circuit 314
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 Valve 316
Brake Valve Circuit 316
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 Valve 318
Brake Valve Circuit 318
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 Valve 320
Brake Valve Circuit 320
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 Valve 322
Brake Valve Circuit 322
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 Circuit 324
Oil Supply to Two Speed Valve 324
Two Speed Valve Circuit 324
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 Circuit 326
Oil Supply to Two Speed Valve 326
Two Speed Valve Circuit 326
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 Circuit 328
Oil Supply to Two Speed Valve 328
Two Speed Valve Circuit 328
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 Circuit 330
Oil Supply to Two Speed Valve 330
Two Speed Valve Circuit 330
Drive Circuit Two Speed Valve Schematic (Track Machine with Manual Controls) 331
Troubleshooting 331
Troubleshooting 332
Test and Adjustments 337
Test Procedures Overview 337
Preliminary Checks 337
Charge Pressure Test 338
Charge Pressure Test (Electronic Controls) 338
Charge Pressure Test (Manual Controls) 340
Charge Pressure System Test 342
Charge Pressure Relief Valve Test 343
Park Brake Circuit Test 346
Mechanical Hydrostatic Pump Centering Procedure 348
Adjustment Procedure 348
Repair 349
Hydrostatic Drive Pump (Machines with Manual Controls) 349
Removal and Installation 349
Hydrostatic Drive Pump (Machines with Electronic Controls) 351
Removal and Installation 351
Brake Valve 353
Removal and Installation 353
Brake Valve/Two Speed Valve (Optional) 355
Removal and Installation 355
Right Drive Motor (One Speed Wheeled Machine) 357
Removal and Installation 357
Left Drive Motor (One Speed Wheeled Machine) 359
Removal and Installation 359
Right Drive Motor (Two Speed Wheeled Machine) 361
Removal and Installation 361
Left Drive Motor (Two Speed Wheeled Machine) 363
Removal and Installation 363
Drive Motor (One Speed Track Machine) 365
Removal and Installation 365
Drive Motor (Two Speed Track Machine) 367
Removal and Installation 367
Hydraulics 371
Specifications 373
Test and Adjustment Specifications 373
Repair Specifications 373
Commonly Used Terms 373
Component Location 374
Component Location 374
Hydraulic Schematic 378
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 Information 384
Boom Raise Circuit—Theory of Operation
384
Oil Supply to Main Control Valve 384
Boom Raise Circuit 384
Circuit Relief 384
Boom Raise Circuit Schematic 385
Boom Lower Circuit—Theory of
Operation
386
Oil Supply to Main Control Valve 386
Boom Lower Circuit 386
Circuit Relief 386
Boom Lower Circuit Schematic 387
Mechanical Boom Lower Circuit—Theory of Operation 388
Mechanical Boom Lower Circuit 388
Mechanical Boom Lower Circuit Schematic 389
Bucket Curl Circuit—Theory of Operation 390
System Conditions 390
Oil Supply to Bucket Valve 390
Bucket Curl Circuit 390
Circuit Relief 390
Bucket Curl Circuit Schematic 391
Bucket Dump Circuit—Theory of Operation 392
System Conditions 392
Oil Supply to Main Control Valve 392
Bucket Curl Circuit 392
Circuit Relief 392
Bucket Dump Circuit Schematic 393
Fan Motor (One Speed) Circuit—Theory of Operation 394
Fan Motor Circuit 394
Fan Motor (One Speed) Circuit Schematic 395
Variable Speed Fan Motor (High Speed) Circuit—Theory of Operation 396
Fan Motor High Speed Circuit 396
Variable Speed Fan Motor (High Speed) Circuit Schematic 397
Variable Speed Fan Motor (Low Speed) Circuit—Theory of Operation 398
Fan Motor Low Speed Circuit 398
Variable Speed Fan Motor (Low Speed) Circuit Schematic 399
Ride Control Circuit—Theory of Operation 400
Ride Control Charging Circuit 400
Ride Control Balancing Circuit 400
Ride Control Active Circuit 400
Ride Control Circuit Schematic 401
Self Leveling Circuit—Theory of Operation 404
Oil Supply to Main Control Valve 404
Self Leveling Circuit 404
Circuit Relief 404
Self Leveling Circuit Schematic 405
Power Coupler Lock Circuit—Theory of Operation 406
Oil Supply to Power Coupler 406
Power Coupler Lock Circuit 406
Power Coupler Circuit Safety 406
Power Coupler Lock Circuit Schematic 407
Power Coupler Unlock Circuit—Theory of Operation 408
Oil Supply to Power Coupler 408
Power Coupler Lock Circuit 408
Power Coupler Circuit Safety 408
Power Coupler Unlock Circuit Schematic 409
Auxiliary Hydraulics Female Coupler Circuit—Theory of Operation 410
Oil Supply to Main Control Valve 410
Auxiliary Hydraulics to Female Connector Circuit 410
Circuit Relief 410
Auxiliary Hydraulics Female Coupler Circuit Schematic 411
Auxiliary Hydraulics Male Coupler Circuit—Theory of Operation 412
Oil Supply to Main Control Valve 412
Auxiliary Hydraulics to Male Connector Circuit 412
Circuit Relief 412
Auxiliary Hydraulics Male Coupler Circuit Schematic 413
High Flow Auxiliary Hydraulics Female Coupler Circuit—Theory of Operation
414
System Conditions: 414
Oil Supply to Main Control Valve 414
Auxiliary Hydraulics to Female Connector Circuit 414
Circuit Relief 414
High Flow Auxiliary Hydraulics Female Coupler Circuit Schematic 415
High Flow Auxiliary Hydraulics Male Coupler Circuit—Theory of Operation
416
System Conditions: 416
Oil Supply to Main Control Valve 416
Auxiliary Hydraulics to Male Connector Circuit 416
Circuit Relief 416
High Flow Auxiliary Hydraulics Male Coupler Circuit Schematic 417
Troubleshooting 417
Troubleshooting 418
Test and Adjustments 420
Test Procedures Overview 420
Preliminary Checks 420
Boom Cylinder Leakage Test 421
Bucket Cylinder Leakage Test 422
Auxiliary Hydraulics Flow Test 423
Auxiliary Hydraulics Flow Test 423
High Flow Auxiliary Hydraulics Flow Test 424
High Flow Auxiliary Hydraulics Flow Test 424
Hydraulic System Main Relief Valve Test and Adjustment 426
Hydraulic System Main Relief Valve Test 426
Main Relief Valve Adjustment 427
Hydraulic Cylinder Pressure Test 428
Gear Pump Test 430
Gear Pump Test (Three Section) 430
Gear Pump Test (Two Section) 432
Repair 434
Hydraulic Oil Tank Drain/Fill Procedure 434
Drain/Fill 434
Hydraulic Oil Tank 436
Removal and Installation 436
Gear Pump (Two Section) 438
Removal and Installation 438
Gear Pump (Three Section) 439
Removal and Installation 439
Fan Motor (One Speed) 440
Removal and Installation 440
Fan Motor (Variable Speed) 442
Removal and Installation 442
Cooling Assembly 444
Removal and Installation 444
Hydraulic Oil Filter Housing 446
Removal and Installation 446
Main Control Valve 448
Removal and Installation 448
Mechanical Boom Lower Valve 450
Removal and Installation 450
Ride Control Valve 452
Removal and Installation 452
Self Leveling Valve 454
Removal and Installation 454
Power Coupler Valve 455
Removal and Installation 455
Power Coupler Cylinder 456
Removal and Installation 456
Bucket Cylinder 457
Removal and Installation 457
Boom Cylinders 458
Removal and Installation 458
WANDA Diagnostics and Configuration 461
Diagnostics 462
Drive Pump Calibration 462
Straight Tracking 469
EDC Threshold Tuning 474
Swash Plate Angle Sensor (SPAS) Override 479
Configuration 483
Creating a Workgroup Profile 483
Creating Drive Profile 487
Machine Configuration 491
Index 495
Numerics 495
A 495
B 495
C 496
D 496
E 499
F 499
G 499
H 499
I 500
J 500
K 500
L 500
M 501
P 501
R 501
S 501
T 502
V 502
W 502

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