JLG 4017PS Parts Manual - Manual (Page 9)

TABLE OF CONTENTS
31200722 4014PS,4017PS,33.7,37.6,37.7,3707PS,3706PS 7
FIGURE 7-1. BRAKE .................................................................................................................................................................... 346
FIGURE 7-2. HAND BRAKE ......................................................................................................................................................... 348
FIGURE 7-3. ACCELERATOR ..................................................................................................................................................... 350
FIGURE 7-4. STEERING COLUMN ............................................................................................................................................. 352
FIGURE 7-5. BOOM JOYSTICK................................................................................................................................................... 354
SECTION 8 - HYDRAULIC CIRCUITS ............................................................................................................................................. 357
FIGURE 8-1. SUPPLY CIRCUIT .................................................................................................................................................. 358
FIGURE 8-2. SUPPLY CIRCUIT .................................................................................................................................................. 362
FIGURE 8-3. DUMP CIRCUIT ...................................................................................................................................................... 366
FIGURE 8-4. DUMP CIRCUIT ...................................................................................................................................................... 370
FIGURE 8-5. STEER SELECT CIRCUIT ...................................................................................................................................... 374
FIGURE 8-6. STEER SELECT CIRCUIT ...................................................................................................................................... 376
FIGURE 8-7. SERVICE BRAKE CIRCUIT .................................................................................................................................... 378
FIGURE 8-8. SERVICE BRAKE CIRCUIT WITH BOOM SUSPENSION ..................................................................................... 380
FIGURE 8-9. LIFT CYLINDER CIRCUIT ...................................................................................................................................... 382
FIGURE 8-10. LIFT CYLINDER CIRCUIT .................................................................................................................................... 384
FIGURE 8-11. LIFT CYLINDER CIRCUIT .................................................................................................................................... 386
FIGURE 8-12. EXTEND/RETRACT CYLINDER CIRCUIT ........................................................................................................... 388
FIGURE 8-13. EXTEND/RETRACT CYLINDER CIRCUIT ........................................................................................................... 390
FIGURE 8-14. EXTEND/RETRACT CYLINDER CIRCUIT ........................................................................................................... 392
FIGURE 8-15. TILT AND TILT COMPENSATION CYLINDER CIRCUIT ..................................................................................... 394
FIGURE 8-16. TILT AND TILT COMPENSATION CYLINDER CIRCUIT ..................................................................................... 396
FIGURE 8-17. TILT AND TILT COMPENSATION CYLINDER CIRCUIT ..................................................................................... 398
FIGURE 8-18. AUXILIARY HYDRAULIC CIRCUIT ...................................................................................................................... 402
FIGURE 8-19. AUXILIARY HYDRAULIC CIRCUIT ...................................................................................................................... 406
FIGURE 8-20. AUXILIARY HYDRAULIC CIRCUIT ...................................................................................................................... 408
FIGURE 8-21. FRAME LEVEL AND OUTRIGGER ...................................................................................................................... 410
FIGURE 8-22. TRAILER BRAKES ............................................................................................................................................... 412
FIGURE 8-23. TRAILER BRAKES ............................................................................................................................................... 416
FIGURE 8-24. TRAILER BRAKES ............................................................................................................................................... 418
SECTION 9 - HYDRAULIC COMPONENTS .................................................................................................................................... 421
FIGURE 9-1. LIFT CYLINDER AND HARDWARE ....................................................................................................................... 422
FIGURE 9-2. LIFT CYLINDER AND HARDWARE ....................................................................................................................... 424
FIGURE 9-3. LIFT CYLINDER AND HARDWARE ....................................................................................................................... 426
FIGURE 9-4. EXTEND/RETRACT CYLINDER AND HARDWARE .............................................................................................. 428
FIGURE 9-5. EXTEND/RETRACT CYLINDER AND HARDWARE .............................................................................................. 430
FIGURE 9-6. EXTEND/RETRACT CYLINDER AND HARDWARE .............................................................................................. 432
FIGURE 9-7. TILT CYLINDER AND HARDWARE ....................................................................................................................... 434
FIGURE 9-8. TILT CYLINDER AND HARDWARE ....................................................................................................................... 436
FIGURE 9-9. COMPENSATION CYLINDER AND HARDWARE ................................................................................................. 438
FIGURE 9-10. COMPENSATION CYLINDER AND HARDWARE................................................................................................ 440
FIGURE 9-11. FRAME LEVEL CYLINDER AND HARDWARE .................................................................................................... 442
FIGURE 9-12. OUTRIGGER CYLINDER AND HARDWARE ....................................................................................................... 444
FIGURE 9-13. QUICK ATTACH CYLINDER ................................................................................................................................ 446
FIGURE 9-14. MAIN CONTROL VALVE ...................................................................................................................................... 448
FIGURE 9-15. MAIN CONTROL VALVE ...................................................................................................................................... 452
FIGURE 9-16. DIVERTER VALVE ............................................................................................................................................... 456
FIGURE 9-17. STEERING SELECT VALVE ................................................................................................................................ 458
FIGURE 9-18. PISTON PUMP ..................................................................................................................................................... 460
FIGURE 9-19. HYDRAULIC TANK ............................................................................................................................................... 462
FIGURE 9-20. COMBINATION VALVE ........................................................................................................................................ 464
FIGURE 9-21. TRAILER BRAKE VALVE ..................................................................................................................................... 466
FIGURE 9-22. TRAILER BRAKE VALVE ..................................................................................................................................... 468
FIGURE 9-23. DYNAMIC SELECT VALVE .................................................................................................................................. 470
FIGURE 9-24. OUTRIGGER MAIN CONTROL VALVE ............................................................................................................... 472
FIGURE 9-25. ACTUATOR ASSEMBLY ...................................................................................................................................... 474
SECTION 10 - ELECTRICAL ........................................................................................................................................................... 477
FIGURE 10-1. ENGINE COMPARTMENT ELECTRICAL INSTALLATION .................................................................................. 478
FIGURE 10-2. CAB ELECTRICAL INSTALLATION ..................................................................................................................... 482
FIGURE 10-3. BOOM AND FRAME ELECTRICAL INSTALLATION............................................................................................ 486
FIGURE 10-4. CAB SWITCHES ................................................................................................................................................... 492