JLG 943 Telehandler Parts Manual
1,106 pages · Publication 31211314
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- Models
- 943
- Serial coverage
- Prior to 0160101057
- Manual type
- Parts Manual
- Pages
- 1,106
- Publication
- 31211314
- Condition
- Brand new

What's inside
From the manual's own table of contents: 236 sections, 479 entries. See sample pages (PDF, 567 KB)
General50 topics
- SECTION 1 - FRAME AND ATTACHING PARTS
- FIGURE 1-1. FRAME (NO OUTRIGGERS)
- FIGURE 1-2. ENGINE ENCLOSURE INSTALLATION
- FIGURE 1-3. ENGINE ENCLOSURE COVER INSTALLATION
- FIGURE 1-4. HOOD ASSEMBLY
- FIGURE 1-5. HOOD ASSEMBLY
- FIGURE 1-6. COVER INSTALLATION (NO OUTRIGGERS) (ULS)
- FIGURE 1-7. COVER INSTALLATION (NO OUTRIGGERS) (LS)
- FIGURE 1-8. COUNTERWEIGHT INSTALLATION
- FIGURE 1-9. TANK INSTALLATION
- FIGURE 1-10. FUEL TANK INSTALLATION
- FIGURE 1-11. HYDRAULIC TANK INSTALLATION
- FIGURE 1-12. FUEL CAP ASSEMBLY
- FIGURE 1-13. MIRROR INSTALLATION
- SECTION 2 - BOOM
- FIGURE 2-1. BOOM ASSEMBLY
- FIGURE 2-2. FIRST BOOM SECTION ASSEMBLY
- FIGURE 2-3. SECOND BOOM SECTION ASSEMBLY
- FIGURE 2-4. THIRD BOOM SECTION ASSEMBLY
- FIGURE 2-5. RETRACT CHAIN INSTALLATION
- FIGURE 2-6. EXTEND CHAIN INSTALLATION
- FIGURE 2-7. PINS INSTALLATION
- FIGURE 2-8. RETRACT CHAIN SHEAVE
- FIGURE 2-9. EXTEND CHAIN ROLLER
- FIGURE 2-10. HOSE BRACKET INSTALLATION
- FIGURE 2-11. BOOM PINNING INSTALLATION
- FIGURE 2-12. LIFT CYLINDER PINS INSTALLATION
- FIGURE 2-13. COMPENSATION CYLINDER PINS INSTALLATION
- FIGURE 2-14. BOOM PIVOT PIN INSTALLATION
- FIGURE 2-15. MANUAL QUICK COUPLER INSTALLATION
- FIGURE 2-16. HYDRAULIC QUICK COUPLER INSTALLATION
- FIGURE 2-17. BOOM PIN INSTALLATION
- FIGURE 2-18. TILT CYLINDER PIN INSTALLATION
- FIGURE 2-19. BOOM ANGLE INDICATOR INSTALLATION
- FIGURE 2-20. BOOM PROP INSTALLATION
- FIGURE 2-21. BOOM PROP INSTALLATION
- FIGURE 2-22. BOOM BRUSHES INSTALLATION
- FIGURE 2-23. QUICK COUPLER ASSEMBLY
- FIGURE 2-24. BOOM PROP BRACKET
- SECTION 3 - ATTACHMENTS
- FIGURE 3-1. CARRIAGE ASSEMBLY (1270MM)
- FIGURE 3-2. CARRIAGE ASSEMBLY (1524 MM)
- FIGURE 3-3. CARRIAGE ASSEMBLY (1829 MM)
- FIGURE 3-4. SIDE TILT CARRIAGE ASSEMBLY (50 INCH)
- FIGURE 3-5. SIDE TILT CARRIAGE ASSEMBLY (60 INCH)
- FIGURE 3-6. SIDE TILT CARRIAGE ASSEMBLY (72 INCH)
- FIGURE 3-7. 90 SWING CARRIAGE ASSEMBLY (72 INCH)
- FIGURE 3-9. FORK POSITIONING CARRIAGE WITH FORKS (4.5 TON)
- FIGURE 3-10. DUAL FORK CARRIAGE VALVE ASSEMBLY
- FIGURE 3-21. FORK CLAMPS INSTALL
Show all 237 sections
FIGURE 4-30. CAC LINES INSTALLATION (LS)63 topics
- FIGURE 4-31. TOC LINES INSTALLATION
- FIGURE 4-32. SURGE TANK INSTALLATION
- FIGURE 4-33. FAN GUARD INSTALLATION
- FIGURE 4-34. EXHAUST INSTALLATION (ULS)
- FIGURE 4-35. EXHAUST INSTALLATION
- FIGURE 4-36. EXHAUST INSTALLATION (LS)
- FIGURE 4-37. ENGINE PARTS INSTALLATION (NO HEATER)
- FIGURE 4-38. ENGINE PARTS INSTALLATION (HEATER)
- FIGURE 4-39. A/C PUMP INSTALLATION (ULS)
- FIGURE 4-40. A/C PUMP INSTALLATION (LS)
- FIGURE 4-41. FUEL TANK ASSEMBLY
- FIGURE 4-42. DEF TANK INSTALLATION
- FIGURE 4-45. DEF PUMP AND CONTROL INSTALLATION
- FIGURE 4-46. DEF PUMP LINES INSTALLATION
- FIGURE 4-47. MUFFLER INSTALLATION (LS)
- FIGURE 4-48. A/C LINES INSTALLATION
- FIGURE 4-49. UREA PUMP
- FIGURE 4-50. HEATER BREATHER - 110 HP
- FIGURE 4-51. HEATER BREATHER - 74 HP
- FIGURE 4-52. DEF BREATHER VALVE
- SECTION 5 - DRIVETRAIN
- FIGURE 5-1. DRIVETRAIN INSTALLATION, 74HP
- FIGURE 5-2. DRIVETRAIN INSTALLATION
- FIGURE 5-3. FRONT AXLE INSTALLATION, 74HP
- FIGURE 5-4. FRONT AXLE INSTALLATION
- FIGURE 5-5. REAR AXLE INSTALLATION, 74HP
- FIGURE 5-6. REAR AXLE INSTALLATION
- FIGURE 5-7. DRIVE SHAFTS INSTALLATION
- FIGURE 5-8. FRONT AXLE MOUNTING INSTALLATION, 74HP
- FIGURE 5-9. FRONT AXLE MOUNTING INSTALLATION
- FIGURE 5-10. FRONT AXLE LINES INSTALLATION
- FIGURE 5-11. REAR AXLE MOUNTING INSTALLATION, 74HP
- FIGURE 5-12. REAR AXLE MOUNTING INSTALLATION
- FIGURE 5-13. REAR AXLE LINES INSTALLATION
- FIGURE 5-14. FRONT DRIVE SHAFT INSTALLATION
- FIGURE 5-15. REAR DRIVE SHAFT INSTALLATION
- FIGURE 5-16. FRONT AXLE, 74HP
- FIGURE 5-17. FRONT AXLE, CENTRAL HOUSING 74HP
- FIGURE 5-18. FRONT AXLE, DIFFERENTIAL 74HP
- FIGURE 5-19. FRONT AXLE, HUB REDUCTION 74HP
- FIGURE 5-20. FRONT AXLE, BRAKES 74HP
- FIGURE 5-21. FRONT AXLE, STEERING 74HP
- FIGURE 5-22. FRONT AXLE, TRUNION 74HP
- FIGURE 5-23. FRONT AXLE
- FIGURE 5-24. FRONT AXLE, BRAKES
- FIGURE 5-25. FRONT AXLE, CENTRAL HOUSING
- FIGURE 5-26. FRONT AXLE, DIFFERENTIAL
- FIGURE 5-27. FRONT AXLE, HUB REDUCTION
- FIGURE 5-28. FRONT AXLE, STEERING
- FIGURE 5-29. FRONT AXLE, TRUNION
- FIGURE 5-30. FRONT AXLE, DIFFERENTIAL KIT
- FIGURE 5-31. FRONT AXLE, PLANET GEAR CARRIER
- FIGURE 5-32. FRONT AXLE, RING GEAR SUPPORT
- FIGURE 5-33. FRONT AXLE, PLANET GEAR CARRIER
- FIGURE 5-34. FRONT AXLE, SUPPORT
- FIGURE 5-35. FRONT AXLE, SUPPORT
- FIGURE 5-36. REAR AXLE, 74HP
- FIGURE 5-37. REAR AXLE, CENTRAL HOUSING 74HP
- FIGURE 5-38. REAR AXLE, DIFFERENTIAL 74HP
- FIGURE 5-39. REAR AXLE, HUB REDUCTION 74HP
- FIGURE 5-40. REAR AXLE, BRAKES 74HP
- FIGURE 5-41. REAR AXLE, STEERING 74HP
- FIGURE 5-42. REAR AXLE, TRUNION 74HP
FIGURE 6-6. OROPS CAB INSTALLATION65 topics
- FIGURE 6-7. EROPS CAB INSTALLATION
- FIGURE 6-8. CAB, TRIM KIT
- FIGURE 6-9. CAB, TRIM KIT
- FIGURE 6-10. OPEN CAB ASSEMBLY
- FIGURE 6-11. OPEN CAB PLUG GROUP
- FIGURE 6-12. CAB, EPD CAULK
- FIGURE 6-13. ENCLOSED CAB ASSEMBLY
- FIGURE 6-14. REAR WINDOW INSTALLATION
- FIGURE 6-15. REAR WINDOW INSTALLATION (WO/WIPER) (ANSI)
- FIGURE 6-16. REAR WINDOW INSTALLATION (WO/WIPER) (ISO)
- FIGURE 6-17. REAR WINDOW ASSEMBLY
- FIGURE 6-18. DOOR INSTALLATION
- FIGURE 6-19. DOOR UPPER GLASS ASSEMBLY
- FIGURE 6-20. CAB LATCH ASSEMBLY
- FIGURE 6-21. CAB DOOR TRIGGER ASSEMBLY
- FIGURE 6-22. DOOR ASSEMBLY
- FIGURE 6-23. CAB DOOR
- FIGURE 6-24. DOOR STRAP INSTALLATION
- FIGURE 6-25. ENCLOSED CAB PLUG GROUP
- FIGURE 6-26. BASIC MIRROR INSTALLATION
- FIGURE 6-27. FRONT COVER INSTALLATION
- FIGURE 6-28. FILTER TRAY PANEL
- FIGURE 6-29. FRONT DUCT COVER
- FIGURE 6-30. LEVEL INDICATOR INSTALLATION
- FIGURE 6-31. SEAT
- FIGURE 6-32. SEAT BELT INSTALLATION (3IN)
- FIGURE 6-33. SEAT BELT INSTALLATION (3 INCH)
- FIGURE 6-34. HEATER INSTALLATION
- FIGURE 6-35. HEATER ASSEMBLY
- FIGURE 6-36. HEATER
- FIGURE 6-37. HEATER
- FIGURE 6-38. HEATER AND A/C INSTALLATION (CAB PARTS)
- FIGURE 6-39. HEATER AND A/C ASSEMBLY
- FIGURE 6-40. HEATER AND A/C
- FIGURE 6-41. HVAC CAB ACTUATOR
- FIGURE 6-42. CAB CONDENSER ASSEMBLY
- FIGURE 6-43. A/C RECEIVER DRIER
- FIGURE 6-44. CONDENSER
- FIGURE 6-45. FRONT WIPER INSTALLATION
- FIGURE 6-46. REAR WIPER INSTALLATION
- FIGURE 6-47. ROOF WIPER INSTALLATION
- FIGURE 6-48. HEADLINER INSTALLATION
- FIGURE 6-49. OPEN CAB TRIM INSTALLATION
- FIGURE 6-50. ENCLOSED CAB TRIM INSTALLATION
- FIGURE 6-51. ROOF CAP INSTALLATION (A/C)
- FIGURE 6-52. ROOF CAP INSTALLATION (NO A/C)
- FIGURE 6-53. OPEN CAB FRONT COVER
- FIGURE 6-54. ENCLOSED CAB FRONT COVER
- FIGURE 6-55. NON SKID TAPE INSTALLATION
- FIGURE 6-56. EXTERNAL WINDOW RELEASE INSTALLATION (CAN & ISO)
- FIGURE 6-57. WASHER TANK INSTALLATION
- FIGURE 6-58. CAB GUARD INSTALLATION (TOP AND FRONT)
- FIGURE 6-59. CAB GUARD INSTALLATION (TOP)
- FIGURE 6-60. CAB GUARD INSTALLATION (FRONT)
- FIGURE 6-61. ROOF PIGTAIL CAP INSTALLATION
- FIGURE 6-62. ROOF PIGTAIL INSTALLATION
- FIGURE 6-63. RETRACTABLE SUNSCREEN INSTALLATION
- FIGURE 6-64. NO SUNSCREEN INSTALLATION
- SECTION 7 - CONTROLS
- FIGURE 7-1. BRAKE PEDAL INSTALLATION
- FIGURE 7-2. BRAKE PEDAL
- FIGURE 7-3. BRAKE PEDAL PLATE
- FIGURE 7-4. ACCELERATOR PEDAL INSTALLATION
- FIGURE 7-5. ACCELERATOR PEDAL
- FIGURE 7-6. STEERING COLUMN INSTALLATION
FIGURE 9-19. STEERING ORBITAL VALVE65 topics
- FIGURE 9-20. STEERING SELECT VALVE
- FIGURE 9-21. FRAME LEVEL VALVE
- FIGURE 9-22. DIVERTOR VALVE
- FIGURE 9-23. TANK HYDRAULIC
- FIGURE 9-24. PRIORITY MANIFOLD VALVE
- FIGURE 9-25. QUICK COUPLER CYLINDER
- FIGURE 9-26. SWING CARRIAGE CYLINDER
- FIGURE 9-27. GRAPPLE BUCKET CYLINDER
- FIGURE 9-28. SIDE SHIFT CARRIAGE CYLINDER
- FIGURE 9-29. FLOW DIVIDER VALVE
- SECTION 10 - ELECTRICAL
- FIGURE 10-1. MAIN ELECTRICAL INSTALLATION (ULS)
- FIGURE 10-2. MAIN ELECTRICAL INSTALLATION (ULS) (74 HP)
- FIGURE 10-3. MAIN ELECTRICAL INSTALLATION (LS)
- FIGURE 10-4. ELECTRICAL FRAME INSTALLATION
- FIGURE 10-5. POWER DISTRIBUTION ELECTRICAL BOX
- FIGURE 10-6. ENGINE BAY WIRING INSTALLATION (ULS)
- FIGURE 10-7. ENGINE BAY WIRING INSTALLATION, 74HP (ULS)
- FIGURE 10-8. ENGINE BAY WIRING INSTALLATION (LS)
- FIGURE 10-9. FRAME WIRING INSTALLATION (ULS)
- FIGURE 10-10. FRAME WIRING INSTALLATION (ULS)
- FIGURE 10-11. FRAME WIRING INSTALLATION (LS)
- FIGURE 10-12. ENGINE BAY ELECTRICAL INSTALLATION
- FIGURE 10-13. ENGINE BAY ELECTRICAL INSTALLATION (ULS)
- FIGURE 10-14. ENGINE WIRING INSTALLATION (ULS)
- FIGURE 10-15. ENGINE WIRING INSTALLATION, 74HP (ULS)
- FIGURE 10-16. ENGINE WIRING INSTALLATION (LS)
- FIGURE 10-17. ENGINE ECU INSTALLATION (ULS)
- FIGURE 10-18. ENGINE ECU INSTALLATION (LS)
- FIGURE 10-19. BOOM AUXILIARY ELECTRIC INSTALLATION
- FIGURE 10-20. BOOM AUXILIARY ELECTRIC HARNESS INSTALLATION
- FIGURE 10-21. BATTERY INSTALLATION
- FIGURE 10-22. ARCTIC WEATHER PACKAGE INSTALLATION - 110 HP (ULS)
- FIGURE 10-23. ARCTIC WEATHER PACKAGE INSTALLATION - 74 HP (ULS)
- FIGURE 10-24. ARCTIC WEATHER PACKAGE INSTALLATION (LS)
- FIGURE 10-25. FUEL FILTER HEATER INSTALLATION
- FIGURE 10-26. ARTIC BATTERIES INSTALLATION
- FIGURE 10-27. HYDRAULIC TANK HEATER INSTALLATION
- FIGURE 10-28. BACKUP ALARM INSTALLATION (120 DB)
- FIGURE 10-29. BACKUP ALARM INSTALLATION (97 DB)
- FIGURE 10-30. WHITE NOISE BACKUP ALARM INSTALLATION
- FIGURE 10-31. CAB ELECTRICAL INSTALLATION
- FIGURE 10-32. DASH ELECTRICAL INSTALLATION
- FIGURE 10-33. DASH ELECTRICAL INSTALLATION (LS)
- FIGURE 10-34. SWITCH LIGHT INSTALLATION
- FIGURE 10-35. USB CHARGER INSTALLATION
- FIGURE 10-36. OPEN CAB ELECTRICAL INSTALLATION WITH OPTIONS
- FIGURE 10-37. MULTIFUNCTION DISPLAY INSTALLATION
- FIGURE 10-38. ENCLOSED CAB ELECTRICAL INSTALLATION WITH OPTIONS
- FIGURE 10-39. REVERSE CAMERA INSTALLATION
- FIGURE 10-40. REVERSE SENSOR INSTALLATION
- FIGURE 10-41. TELEMATICS READY INSTALLATION
- FIGURE 10-42. ROAD LIGHTS INSTALLATION
- FIGURE 10-43. CAB WORKLIGHTS INSTALLATION (NO A/C)
- FIGURE 10-44. CAB WORKLIGHTS INSTALLATION (NO A/C - LED)
- FIGURE 10-45. CAB WORKLIGHTS INSTALLATION (A/C)
- FIGURE 10-46. CAB WORKLIGHTS INSTALLATION (A/C - LED)
- FIGURE 10-47. BOOM WORK LIGHTS INSTALLATION
- FIGURE 10-48. BOOM WORK LIGHTS INSTALLATION (LED)
- FIGURE 10-49. BOOM LIGHTS INSTALLATION
- FIGURE 10-50. BOOM LED LIGHTS INSTALLATION
- FIGURE 10-51. A/C OPTION HARNESS
- FIGURE 10-52. BEACON INSTALLATION
- FIGURE 10-53. BEACON INSTALLATION (LED)
- FIGURE 10-54. RIDE CONTROL CB VALVE HARNESS INSTALLATION (LIFT)
Inside this manual
Real pages from this parts manual (1,106 pages). Open the sample pages (PDF, 566 KB)
- Parts illustration, page 183: SECTION 3 - ATTACHMENTS
- Parts illustration, page 829: SECTION 10 - ELECTRICAL
- Parts illustration, page 1,033: SECTION 10 - ELECTRICAL
Other manuals for this machine
Save 10% on 2 manuals, 15% on 3 or more. Other manuals for the 943 are listed below. Editions cover different serial number ranges: check the serial coverage and tick only the ones that match your machine.
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This is a parts manual
Here's how it compares to the other manual types.
Service manual
Factory repair procedures and technical information such as specifications, troubleshooting, and wiring and hydraulic diagrams, for the models and systems the manual covers. See What's inside for its topics.
Operator's manual
Safe operation, controls, maintenance schedules, lubrication points, inspections, and basic checks. Repair procedures are in the service manual.
Parts manual
Illustrated diagrams with factory part numbers for identifying components and ordering parts. Repair procedures are in the service manual.
What it's used for
Factory manual for in-house farm and construction shop use. Straightforward, complete, and easy to follow. It contains the OEM information dealership service departments and parts counters use to diagnose problems, identify components, and perform maintenance or repairs correctly.
Service shops and owner/operators who repair their own equipment
Identifying correct parts and seeing how assemblies come apart and go back together
Keeping equipment running with less downtime
Factory manual, 1,106 pages
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Other editions and similar models
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