JLG 450A Series II, 450AJ Series II Boom Lift Parts Manual

Name: JLG 450A Series II, 450AJ Series II Boom Lift Parts Manual
Brand: MidWestTech
SKU: 3121244
Price: 69.55 USD
Availability: InStock

480 pages · Publication 3121244

$69.55

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Models: 450A Series II, 450AJ Series II
Serial coverage: Prior to E300001114, 0300124000-0300160834, 1300006000 to Present
Manual type: Parts Manual
Pages: 480
Publication: 3121244
Condition: Brand new

JLG 450A Series II, 450AJ Series II Boom Lift Parts Manual, publication 3121244

What's inside

From the manual's own table of contents: 57 sections, 118 entries. See sample pages (PDF, 610 KB)

Search the contents

General48 topics

SECTION 1 - FRAME
FIGURE 1-1. AXLE AND STEERING INSTALLATION - 2WD WITHOUT TOW BAR
FIGURE 1-2. AXLE AND STEERING INSTALLATION - 2WD WITH TOW BAR
FIGURE 1-3. AXLE AND STEERING INSTALLATION - 4WD
FIGURE 1-4. TIRE AND WHEEL DRIVE INSTALLATION
FIGURE 1-5. DRIVE HUB/BRAKE ASSEMBLY (REAR)
FIGURE 1-6. DRIVE HUB ASSEMBLY (FRONT) (4WD ONLY)
FIGURE 1-7. DRIVE MOTOR ASSEMBLY (2WD)
FIGURE 1-8. DRIVE MOTOR ASSEMBLY (4WD)
FIGURE 1-9. DRIVE VALVES AND FRAME SHIELDS INSTALLATION
FIGURE 1-10. TOW BAR INSTALLATION (OPTIONAL)
FIGURE 1-11. SEMI-TRACK INSTALLATION
SECTION 2 - TURNTABLE
FIGURE 2-1. CONTROL VALVE INSTALLATION
FIGURE 2-2. MAIN CONTROL VALVE ASSEMBLY
FIGURE 2-3. TURNTABLE AND SWING DRIVE INSTALLATIONS
FIGURE 2-4. SWING MOTOR ASSEMBLY
FIGURE 2-5. SWING MOTOR ASSEMBLY
FIGURE 2-6. SWING BEARING AND ROTATION BOX ASSEMBLY (ORIGINAL EQUIPMENT)
FIGURE 2-7. SWING BEARING AND ROTATION BOX ASSEMBLY (SERVICE REPLACEMENT))
(WITHOUT UGM)
FIGURE 2-10. USA BUILT MACHINES/CATERPILLAR ENGINE INSTALLATION (WITH UGM)
FIGURE 2-11. USA BUILT MACHINES/DEUTZ ENGINE INSTALLATION
FIGURE 2-12. USA BUILT MACHINES/GM ENGINE INSTALLATION (WITHOUT UGM)
FIGURE 2-13. USA BUILT MACHINES/GM ENGINE INSTALLATION (WITH UGM)
FIGURE 2-16. USA BUILT MACHINES/PERKINS ENGINE INSTALLATION (WITH UGM)
FIGURE 2-17. BELGIUM AND ROMANIAN BUILT MACHINES/CATERPILLAR ENGINE INSTALLATION
FIGURE 2-18. BELGIUM AND ROMANIAN BUILT MACHINES/DEUTZ ENGINE INSTALLATION
FIGURE 2-21. BELGIUM BUILT MACHINES/PERKINS ENGINE INSTALLATION (WITH UGM)
FIGURE 2-22. PISTON PUMP ASSEMBLY
FIGURE 2-23. GEAR PUMP ASSEMBLY
FIGURE 2-24. AUXILIARY PUMP ASSEMBLY
FIGURE 2-25. TANK INSTALLATIONS
FIGURE 2-26. LP TANK INSTALLATION (GM ENGINE MACHINES ONLY)
FIGURE 2-27. GROUND CONTROL BOX ASSEMBLY (WITHOUT UGM)
FIGURE 2-28. GROUND CONTROL BOX ASSEMBLY (WITH UGM)
FIGURE 2-29. ELECTRICAL OPTIONS INSTALLATION (TURNTABLE MOUNTED)
FIGURE 2-30. HOODS INSTALLATION
FIGURE 2-31. HOODS INSTALLATION
FIGURE 2-32. 2500W GENERATOR INSTALLATION - CATERPILLAR MACHINES (OPTIONAL)
FIGURE 2-33. 2500W GENERATOR INSTALLATION - DEUTZ MACHINES (OPTIONAL)
FIGURE 2-34. 2500W GENERATOR INSTALLATION - GM MACHINES (OPTIONAL)
FIGURE 2-35. 2500W GENERATOR INSTALLATION - PERKINS MACHINES (OPTIONAL)
FIGURE 2-36. 7500W GENERATOR INSTALLATION - CATERPILLAR ENGINE MACHINES (USA BUILT MACHINES)
FIGURE 2-37. 7500W GENERATOR INSTALLATION - DEUTZ ENGINE MACHINES (USA BUILT MACHINES)
MACHINES)
FIGURE 2-39. 7500W GENERATOR INSTALLATION - GM ENGINE MACHINES (USA BUILT MSCHINES)
SECTION 3 - BOOM

FIGURE 3-1. TOWER/MID BOOMS AND CYLINDERS INSTALLATION (USA BUILT MACHINES)

FIGURE 3-2. TOWER/MID BOOMS AND CYLINDERS INSTALLATION (BELGIUM AND ROMANIAN BUILT MACHINES)

FIGURE 3-3. MAIN BOOM INSTALLATION - 450A SERIES II

FIGURE 3-4. MAIN BOOM INSTALLATION - 450AJ SERIES II (USA BUILT MACHINES)

FIGURE 3-5. MAIN BOOM INSTALLATION - 450AJ SERIES II (BELGIUM AND ROMANIAN BUILT MACHINES)

FIGURE 3-6. MAIN BOOM ASSEMBLIES

FIGURE 3-7. ROTATOR ASSEMBLIES

FIGURE 3-8. PLATFORM SUPPORT AND CONTROL VALVES INSTALLATIONS

FIGURE 3-9. PLATFORM SUPPORT INSTALLATION - WITH LSS

SECTION 4 - PLATFORM

FIGURE 4-1. PLATFORM INSTALLATION

FIGURE 4-2. FALL ARREST PLATFORM COMPONENTS INSTALLATION (OPTIONAL)

FIGURE 4-3. SOFT TOUCH SYSTEM INSTALLATION (OPTIONAL)

FIGURE 4-4. PLATFORM CONSOLE ASSEMBLY

FIGURE 4-5. CONTROLLER ASSEMBLY (SWING AND LIFT) (ADE SYSTEM) (ORIGINAL EQUIPMENT)

FIGURE 4-6. CONTROLLER ASSEMBLY (LIFT AND SWING) (SERVICE REPLACEMENT)

FIGURE 4-7. CONTROLLER ASSEMBLY (LIFT AND SWING) (SERVICE REPLACEMENT)

FIGURE 4-8. CONTROLLER ASSEMBLY (DRIVE AND STEER) (ADE SYSTEM) (ORIGINAL EQUIPMENT)

FIGURE 4-9. CONTROLLER ASSEMBLY (DRVIE AND STEER) (SERVICE REPLACEMENT)

FIGURE 4-10. CONTROLLER ASSEMBLY (DRIVE AND STEER) (SERVICE REPLACEMENT)

FIGURE 4-11. SKYGLAZIER INSTALLATION - WITHOUT LSS (ANSI, CSA AND AUSTRALIAN SPECS)

FIGURE 4-12. SKYGLAZIER INSTALLATION - WITH LSS (AUSTRALIAN SPECS)

FIGURE 4-13. SKYWELDER INSTALLATION (50HZ)

Show all 58 sections

FIGURE 4-14. SKYWELDER INSTALLATION (60HZ)

FIGURE 4-15. WELDER ASSEMBLY

FIGURE 4-16. SKYCUTTER INSTALLATION (USA BUILT MACHINES)

FIGURE 4-17. PLASMA CUTTER ASSEMBLY

SECTION 5 - CYLINDER

FIGURE 5-1. USA BUILT MACHINES/AXLE LOCKOUT CYLINDER

REPLACEMENT)

FIGURE 5-4. USA BUILT MACHINES/LEVEL (PLATFORM) CYLINDER (450AJ SERIES II) (ORIGINAL EQUIPMENT)

FIGURE 5-5. USA BUILT MACHINES/LEVEL (PLATFORM) CYLINDER (450AJ SERIES II) (SERVICE REPLACEMENT)

FIGURE 5-6. USA BUILT MACHINES/LIFT (JIB) CYLINDER (450AJ SERIES II ONLY) (ORIGINAL EQUIPMENT)

FIGURE 5-7. USA BUILT MACHINES/LIFT (JIB) CYLINDER (450AJ SERIES II ONLY) (SERVICE REPLACEMENT)

FIGURE 5-8. USA BUILT MACHINES/LIFT (MAIN BOOM) CYLINDER

FIGURE 5-9. USA BUILT MACHINES/LIFT (TOWER BOOM) CYLINDER

FIGURE 5-10. USA BUILT MACHINES/MASTER CYLINDER (450A SERIES II) (ORIGINAL EQUIPMENT)

FIGURE 5-11. USA BUILT MACHINES/MASTER CYLINDER (450A SERIES II) (SERVICE REPLACEMENT)

FIGURE 5-12. USA BUILT MACHINES/MASTER CYLINDER (450AJ SERIES II) (ORIGINAL EQUIPMENT)

FIGURE 5-13. USA BUILT MACHINES/MASTER CYLINDER (450AJ SERIES II) (SERVICE REPLACEMENT)

FIGURE 5-14. USA BUILT MACHINES/STEER CYLINDER

FIGURE 5-15. USA BUILT MACHINES/TELESCOPE CYLINDER

FIGURE 5-16. BELGIUM AND ROMANIAN BUILT MACHINES/AXLE LOCKOUT CYLINDER

FIGURE 5-17. BELGIUM AND ROMANIAN BUILT MACHINES/LIFT (JIB) CYLINDER (450AJ SERIES II ONLY)

FIGURE 5-18. BELGIUM AND ROMANIAN BUILT MACHINES/LIFT (MAIN BOOM) CYLINDER

FIGURE 5-19. BELGIUM AND ROMANIAN BUILT MACHINES/LIFT (TOWER BOOM) CYLINDER

FIGURE 5-20. BELGIUM AND ROMANIAN BUILT MACHINES/STEER CYLINDER

FIGURE 5-21. BELGIUM AND ROMANIAN BUILT MACHINES/TELESCOPE CYLINDER

SECTION 6 - HYDRAULIC

FIGURE 6-1. AXLE LOCKOUT HYDRAULIC DIAGRAM - 2WD

FIGURE 6-2. AXLE LOCKOUT HYDRAULIC DIAGRAM - 4WD

FIGURE 6-3. DRIVE HYDRAULIC DIAGRAM - 2WD

FIGURE 6-4. DRIVE HYDRAULIC DIAGRAM - 4WD

FIGURE 6-5. STANDARD HYDRAULIC DIAGRAM

FIGURE 6-6. TOW BAR HYDRAULIC DIAGRAM

FIGURE 6-7. HYDRAULIC DIAGRAM LIST

SECTION 7 - ELECTRICAL13 topics

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
FIGURE 8-1. DECAL INSTALLATION - ANSI SPEC
FIGURE 8-2. DECAL INSTALLATION - ANSI EXPORT SPECS
FIGURE 8-3. DECALS INSTALLATION - AUSTRALIAN AND CE SPECS
SECTION 9 - RECOMMENDED SERVICE PARTS STOCK
FIGURE 9-1. MODEL 450A / 450AJ SERIES II STANDARD PARTS
FIGURE 9-2. MODEL 450A / 450AJ SERIES II VARIABLE PARTS
SECTION 10 - SPECIAL OPTIONS
FIGURE 10-1. SPECIAL OPTIONS
PART NUMBER INDEX

Inside this manual

Real pages from this parts manual (480 pages). Open the sample pages (PDF, 609 KB)

Sample pages from the JLG 450A Series II, 450AJ Series II Boom Lift Parts Manual: Parts illustration, Parts illustration, Parts illustration

Parts illustration, page 281: SECTION 3 - BOOM
Parts illustration, page 365: SECTION 5 - CYLINDER
Parts illustration, page 393: SECTION 6 - HYDRAULIC

Other manuals for this machine

Save 10% on 2 manuals, 15% on 3 or more. Other manuals for the 450A Series II, 450AJ Series II are listed below. Editions cover different serial number ranges: check the serial coverage and tick only the ones that match your machine.

This manual: Parts Manual 3121244$69.55

Service manuals

Service Manual 3121180 · 472 pagesCovers 450A Series II, 450AJ Series IISerial: Prior to 1300007279, Prior to E300001115, 0300062713, 0300062755, 0300064188, 0300064241, 0300064340, 0300064366, 0300064407, 0300064430, 0300064580, 0300064581, 0300064583, 0300064605-0300064609, 0300064691, 0300064705, 0300064706, 0300064735, 0300064737, 0300064753, 0300064754, 0300064774, 0300064775, 0300064792, 0300064794, 0300064806, 0300064918, 0300064923-0300064928, 0300064933, 0300064934, 0300065012, 0300065014-0300065028, 0300065031-0300065046, 0300065049, 0300065050, 0300065063, 0300065066, 0300065067, 0300065078, 0300065080-0300160834$69.57Details

Service Manual 3121290 · 396 pagesCovers 450A Series II, 450AJ Series IISerial: 0300160835-0300201990, E300001114-E300002832, Exclude Serial Number Range: 0300199221-0300199224, 0300200428, 0300201105-0300201109, 0300201481, 0300201482, 0300201528, 0300201529, 0300201575-0300201577, 0300201623, 0300201624, 0300201668, 0300201811-0300201814, 0300201858-0300201862, 0300201906-0300201910, 0300201954-0300201958$69.63Details

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, 480 pages

Quantity one is the manual described above.

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