JLG 34HA Boom Lift Parts Manual
267 pages · Publication 3120804
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- Models
- 34HA
- Manual type
- Parts Manual
- Pages
- 267
- Publication
- 3120804
- Condition
- Brand new

What's inside
From the manual's own table of contents: 39 sections, 93 entries. See sample pages (PDF, 480 KB)
General54 topics
- SECTION 1 - FRAME
- OSCILLATING AXLES (STANDARD 2WD - DOUBLE ACTING STEER CYLINDER)
- OSCILLATING AXLES (OPTIONAL 2WD - SINGLE ACTING STEER CYLINDER)
- OSCILLATING AXLES (4WD)
- FIGURE 1-4. DRIVE HUB ASSEMBLY
- FIGURE 1-5. DRIVE HUB/BRAKE ASSEMBLY (4WD FRONT) (PRIOR TO DECEMBER 1991)
- FIGURE 1-6. DRIVE HUB/BRAKE ASSEMBLY (4WD FRONT) (DECEMBER 1991 TO PRESENT)
- FIGURE 1-7. DRIVE BRAKE ASSEMBLY (PRIOR TO DECEMBER 1991)
- FIGURE 1-8. DRIVE BRAKE ASSEMBLY (DECEMBER 1991 TO SN 33475)
- FIGURE 1-9. DRIVE BRAKE ASSEMBLY (SN 33476 through 56992)
- FIGURE 1-10. DRIVE MOTOR ASSEMBLY (GAS AND DIESEL)
- FIGURE 1-11. DRIVE MOTOR ASSEMBLY (ELECTRIC)
- FIGURE 1-12. VALVE INSTALLATION (FRAME MOUNTED)
- FIGURE 1-13. TOW PACKAGE INSTALLATION
- SECTION 2 - TURNTABLE
- FIGURE 2-1. CONTROL VALVES INSTALLATIONS
- FIGURE 2-2. CONTROL VALVE ASSEMBLY - 3 & 4 SECTION RACINE BANG - BANG
- FIGURE 2-3. CONTROL VALVE ASSEMBLY - 3 SECTION RACINE BANG - BANG
- FIGURE 2-4. VALVE ASSEMBLY - SINGLE STACK RACINE
- FIGURE 2-5. MODULAR CONTROL VALVE ASSEMBLY
- FIGURE 2-6. SWING DRIVE AND BEARING INSTALLATION
- FIGURE 2-7. SWING BRAKE ASSEMBLY (MACHINES BUILT THROUGH 1992)
- FIGURE 2-8. SWING MOTOR ASSEMBLY (MACHINES BUILT PRIOR TO 1993)
- FIGURE 2-9. SWING MOTOR ASSEMBLY (MACHINES BUILT 1993 TO PRESENT)
- FIGURE 2-10. ROTARY OIL COUPLING INSTALLATION
- FIGURE 2-11. FORD VSG-411 GAS ENGINE INSTALLATION (PRIOR TO JUNE 1995)
- FIGURE 2-12. FORD VSG-413 GAS ENGINE INSTALLATION (JUNE 1995 TO PRESENT)
- FIGURE 2-13. DUAL FUEL INSTALLATION - FORD
- FIGURE 2-14. GENERATOR INSTALLATION - 110V (FORD)
- FIGURE 2-15. DEUTZ F2L-1011 DIESEL ENGINE INSTALLATION
- FIGURE 2-16. GENERATOR INSTALLATION - 110V (DEUTZ)
- FIGURE 2-17. ELECTRIC MOTOR, BATTERIES AND CHARGER INSTALLATIONS
- FIGURE 2-18. BATTERY CHARGER ASSEMBLY
- FIGURE 2-19. CONTACTOR BOX ASSEMBLY
- FIGURE 2-20. PUMP ASSEMBLY - SUNSTRAND (GAS AND DIESEL MACHINES)
- FIGURE 2-21. PUMP ASSEMBLY - SINGLE SECTION (GAS AND DIESEL MACHINES) (PRIOR TO AUGUST 1992)
- FIGURE 2-22. PUMP ASSEMBLY - SINGLE SECTION (GAS AND DIESEL MACHINES) (AUGUST 1992 TO PRESENT)
- FIGURE 2-23. PUMP ASSEMBLY - 3 SECTION (ELECTRIC MACHINES)
- FIGURE 2-24. TANK INSTALLATION
- FIGURE 2-25. GROUND CONTROL BOX ASSEMBLY
- FIGURE 2-26. HOODS, LIGHTS AND ALARMS INSTALLATION
- SECTION 3 - BOOM
- FIGURE 3-1. TURNTABLE, BOOM AND HORIZONTAL LIMIT SWITCH INSTALLATIONS
- FIGURE 3-2. BOOM ASSEMBLIES
- SECTION 4 - PLATFORM
- FIGURE 4-1. STANDARD PLATFORM, CONTROLS AND SUPPORT INSTALLATIONS
- FIGURE 4-2. LOW MOUNT PLATFORM, CONTROLS AND SUPPORT INSTALLATIONS
- FIGURE 4-3. ROTATOR MOTOR ASSEMBLY (WORM GEAR DRIVE)
- FIGURE 4-4. ROTATOR MOTOR ASSEMBLY (HYDRAULIC PISTON)
- FIGURE 4-5. PLATFORM CONSOLE BOX ASSEMBLY
- FIGURE 4-6. PLATFORM CONSOLE BOX ASSEMBLY (PROPORTIONAL CONTROLS)
- FIGURE 4-7. OPTIONAL COMMON PLATFORM MOUNTED COMPONENTS
- SECTION 5 - CYLINDER
- FIGURE 5-1. AXLE LOCKOUT CYLINDER ASSEMBLY
Show all 40 sections
Inside this manual
Real pages from this parts manual (267 pages). Open the sample pages (PDF, 479 KB)
- Parts illustration, page 109: FIGURE 2-19. CONTACTOR BOX ASSEMBLY
- Parts illustration, page 129: FIGURE 2-26. HOODS, LIGHTS AND ALARMS INSTALLATION
- Parts illustration, page 209: SECTION 6 - HYDRAULIC
Other manuals for this machine
Save 10% on 2 manuals, 15% on 3 or more. Other manuals for the 34HA 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, 267 pages
Quantity one is the manual described above.
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Other editions and similar models
Questions about model, serial number, engine coverage or contents? Contact us before purchasing and we'll help confirm it's the right manual. Please verify the manual type, machine model, serial number range and engine coverage before purchasing: manuals ordered in error carry a 20% restocking fee (return policy).