JLG 800A, 800AJ Boom Lift Parts Manual

Name: JLG 800A, 800AJ Boom Lift Parts Manual
Brand: MidWestTech
SKU: 3121854
Price: 69.65 USD
Availability: InStock

376 pages · Publication 3121854

$69.65

Fast free USA shippingShips in 1 business daySave 10% on 2 manuals, 15% on 3 or morePay by credit or debit card or with PayPal. No PayPal account needed.

Models: 800A, 800AJ
Serial coverage: Prior to B300000167, 0300069000-0300139999
Manual type: Parts Manual
Pages: 376
Publication: 3121854
Condition: Brand new

JLG 800A, 800AJ Boom Lift Parts Manual, publication 3121854

What's inside

From the manual's own table of contents: 40 sections, 81 entries. See sample pages (PDF, 529 KB)

Search the contents

General41 topics

SECTION 1 - FRAME
FIGURE 1-1. AXLE AND STEERING INSTALLATION
FIGURE 1-2. TIRE AND WHEEL INSTALLATIONS
FIGURE 1-8. DRIVE VALVES AND SHIELDS INSTALLATIONS (SN 0300069000 through 0300083331)
FIGURE 1-9. DRIVE VALVES AND SHIELDS INSTALLATIONS (SN 0300083332 through 0300140000)
FIGURE 1-10. TOW PACKAGE INSTALLATION (2WS ONLY)
SECTION 2 - TURNTABLE
FIGURE 2-1. CONTROL VALVES AND HORN INSTALLATIONS
FIGURE 2-2. MAIN CONTROL VALVE ASSEMBLY
FIGURE 2-3. ACCESSORY VALVE ASSEMBLY
FIGURE 2-4. AUXILIARY PUMP ASSEMBLY
FIGURE 2-5. TURNTABLE BEARING AND SWING DRIVE INSTALLATION
FIGURE 2-8. CATERPILLAR ENGINE INSTALLATION (SN 0300069000 through 0300139399)
FIGURE 2-9. CATERPILLAR ENGINE INSTALLATION (SN 0300139400 through 0300140000)
FIGURE 2-10. 2500W GENERATOR INSTALLATION - CATERPILLAR MACHINES (OPTIONAL)
FIGURE 2-13. 2500W GENERATOR INSTALLATION - DEUTZ MACHINES (OPTIONAL)
FIGURE 2-14. PISTON PUMP ASSEMBLY
FIGURE 2-15. TANK INSTALLATIONS
FIGURE 2-19. GROUND CONTROL BOX ASSEMBLY (WITHOUT UGM)
FIGURE 2-20. GROUND CONTROL BOX ASSEMBLY (WITH UGM)
FIGURE 2-21. ELECTRICAL OPTIONS INSTALLATION (TURNTABLE MOUNTED)
FIGURE 2-24. ENGINE TRAY JACK INSTALLATION (OPTIONAL)
SECTION 3 - BOOM
FIGURE 3-1. BOOM AND CYLINDER INSTALLATION - 800A
FIGURE 3-2. BOOM AND CYLINDER INSTALLATION - 800AJ
FIGURE 3-3. TOWER BOOM ASSEMBLY
FIGURE 3-4. MAIN BOOM ASSEMBLIES
FIGURE 3-5. ROTATOR ASSEMBLY (FRONT ENTRY PLATFORM)
FIGURE 3-6. ROTATOR ASSEMBLY (SIDE ENTRY PLATFORM)
FIGURE 3-7. VALVE AND LIMIT SWITCH INSTALLATIONS (BOOM MOUNTED)
SECTION 4 - PLATFORM
FIGURE 4-1. PLATFORM COMPONENTS INSTALLATION (FRONT ENTRY PLATFORM)
FIGURE 4-2. PLATFORM COMPONENTS INSTALLATION (SIDE ENTRY PLATFORM)
FIGURE 4-3. PLATFORM COMPONENTS INSTALLATION (FALL ARREST PLATFORM)
FIGURE 4-6. CONTROLLER ASSEMBLY (LIFT AND SWING)
FIGURE 4-7. CONTROLLER ASSEMBLY (LIFT AND SWING)
FIGURE 4-8. CONTROLLER ASSEMBLY (LIFT AND SWING)
FIGURE 4-9. CONTROLLER ASSEMBLY (DRIVE AND STEER)
FIGURE 4-10. CONTROLLER ASSEMBLY (DRIVE AND STEER)
FIGURE 4-11. CONTROLLER ASSEMBLY (DRIVE AND STEER)
FIGURE 4-12. SOFT TOUCH SYSTEM INSTALLATION (OPTIONAL)

SECTION 5 - CYLINDER

FIGURE 5-1. AXLE LOCKOUT CYLINDER ASSEMBLY

FIGURE 5-2. LEVEL CYLINDER ASSEMBLY - PLATFORM SLAVE

FIGURE 5-3. LEVEL CYLINDER ASSEMBLY - PLATFORM SLAVE (800A ONLY) (SERVICE REPLACEMENT)

FIGURE 5-4. LEVEL CYLINDER ASSEMBLY - PLATFORM SLAVE (800AJ ONLY) (SERVICE REPLACEMENT)

FIGURE 5-5. LEVEL CYLINDER ASSEMBLY - UPRIGHT

FIGURE 5-6. LEVEL CYLINDER ASSEMBLY - UPRIGHT (SERVICE REPLACEMENT)

FIGURE 5-7. LIFT CYLINDER ASSEMBLY - JIB (800AJ ONLY) (ORIGINAL EQUIPMENT)

FIGURE 5-8. LIFT CYLINDER ASSEMBLY - JIB (800AJ ONLY) (USAGE MAY VARY) (SERVICE REPLACEMENT)

FIGURE 5-9. LIFT CYLINDER ASSEMBLY - JIB (800AJ ONLY) (USAGE MAY VARY) (SERVICE REPLACEMENT)

FIGURE 5-10. LIFT CYLINDER ASSEMBLY - MAIN BOOM (ORIGINAL EQUIPMENT)

FIGURE 5-11. LIFT CYLINDER ASSEMBLY - MAIN BOOM (SERVICE REPLACEMENT)

FIGURE 5-12. LIFT CYLINDER ASSEMBLY - TOWER BOOM (ORIGINAL EQUIPMENT)

FIGURE 5-13. LIFT CYLINDER ASSEMBLY - TOWER BOOM (SERVICE REPLACEMENT)

FIGURE 5-14. MASTER CYLINDER ASSEMBLY - 800A (ORIGINAL EQUIPMENT)

FIGURE 5-15. MASTER CYLINDER ASSEMBLY (800A) (SERVICE REPLACEMENT)

FIGURE 5-16. MASTER CYLINDER ASSEMBLY - 800AJ (ORIGINAL EQUIPMENT)

FIGURE 5-17. MASTER CYLINDER ASSEMBLY (800AJ) (SERVICE REPLACEMENT)

FIGURE 5-18. STEER CYLINDER ASSEMBLY

FIGURE 5-19. TELESCOPE CYLINDER ASSEMBLY - MAIN BOOM

FIGURE 5-20. TELESCOPE CYLINDER ASSEMBLY - MAIN BOOM (800A) (SERVICE REPLACEMENT)

FIGURE 5-21. TELESCOPE CYLINDER ASSEMBLY - MAIN BOOM (800AJ) (SERVICE REPLACEMENT)

FIGURE 5-22. TELESCOPE CYLINDER ASSEMBLY - TOWER BOOM

Show all 41 sections

FIGURE 5-23. TELESCOPE CYLINDER ASSEMBLY - TOWER BOOM (SERVICE REPLACEMENT)

SECTION 6 - HYDRAULIC

FIGURE 6-1. AXLE LOCKOUT HYDRAULIC DIAGRAM

FIGURE 6-6. STANDARD HYDRAULIC DIAGRAM (WITH FENNER AND HALDEX BRAND AUXILIARY PUMP)

FIGURE 6-7. STANDARD HYDRAULIC DIAGRAM (WITH BUCHER BRAND AUXILIARY PUMP)

FIGURE 6-8. HYDRAULIC DIAGRAM LIST

SECTION 7 - ELECTRICAL

FIGURE 7-1. ELECTRICAL DIAGRAM LIST

FIGURE 7-2. HARNESS COMPONENTS INSTALLATION WITHOUT UGM

FIGURE 7-3. HARNESS COMPONENTS INSTALLATION WITH UGM

SECTION 8 - DECALS

SECTION 9 - RECOMMENDED SERVICE PARTS STOCK

FIGURE 9-1. MODEL 800A/800AJ STANDARD PARTS

FIGURE 9-2. MODEL 800A/800AJ VARIABLE PARTS

SECTION 10 - SPECIAL OPTIONS

FIGURE 10-1. SPECIAL OPTIONS

PART NUMBER INDEX

Inside this manual

Real pages from this parts manual (376 pages). Open the sample pages (PDF, 528 KB)

Sample pages from the JLG 800A, 800AJ Boom Lift Parts Manual: Parts illustration, Parts illustration, Parts illustration

Parts illustration, page 193: SECTION 4 - PLATFORM
Parts illustration, page 308: SECTION 7 - ELECTRICAL
Parts illustration, page 358: SECTION 10 - SPECIAL OPTIONS

Other manuals for this machine

Save 10% on 2 manuals, 15% on 3 or more. Other manuals are listed below. Editions cover different serial number ranges: check the serial coverage and tick only the ones that match your machine.

Your model

This manual: Parts Manual 3121854$69.65

Service manuals

Service Manual 3120740 · 526 pagesCovers 800A, 800AJSerial: Prior to 0300183034, Prior to B300000276, Exclude Serial Number Range: 0300174954, 0300180871, 0300181353$69.81Details

Service Manual 3120858 · 494 pagesCovers 800A, 800AJSerial: Prior to 0300183034, Prior to B300000276, Exclude Serial Number Range: 0300174954, 0300180871, 0300181353$69.87Details

Service Manual 3121628 · 642 pagesCovers 800A, 800AJSerial: 0300174954, 0300180871, 0300181353, 0300183034-0300272376$69.51Details

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.

This 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, 376 pages

Quantity one is the manual described above.

Fast free USA shipping

Ships in 1 business day.

60-day returns

Free if the mistake is ours. A manual ordered in error must come back unopened in its shrink-wrap; you pay return shipping and a 20% restocking fee applies. Return policy

Binder not included

Manuals over about 300 pages may need a standard 3-ring binder, which you can buy locally to keep the pages organized for shop use.

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).