JLG 450A, 450AJ Boom Lift Parts Manual

Name: JLG 450A, 450AJ Boom Lift Parts Manual
Brand: MidWestTech
SKU: 3120750
Price: 69.87 USD
Availability: InStock

266 pages · Publication 3120750

$69.87

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Models

450A, 450AJ

Serial coverage

Prior to 0300065080, Exclude Serial Number Range: 0300062713, 0300062755, 0300064188, 0300064241, 0300064340, 0300064366, 0300064407, 0300064430, 0300064580, 0300064581, 0300064583, 0300064605, 0300064606, 0300064607, 0300064608, 0300064609, 0300064691, 0300064705, 0300064706, 0300064735, 0300064737, 0300064753, 0300064754, 0300064774, 030006477
0300064792, 0300064794, 0300064806, 0300064918, 0300064923, 0300064924, 0300064927, 0300064928, 0300064933, 0300064934, 0300065012, 0300065014, 0300065015, 0300065028, 0300065031, 0300065032, 0300065046, 0300065049, 0300065050, 0300065063, 0300065066, 0300065067, 0300065078

Manual type

Parts Manual

Pages

266

Publication

3120750

Condition

Brand new

JLG 450A, 450AJ Boom Lift Parts Manual, publication 3120750

What's inside

From the manual's own table of contents: 26 sections, 78 entries. See sample pages (PDF, 506 KB)

Search the contents

General52 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 INSTALLATIONS
FIGURE 1-5. DRIVE BRAKE ASSEMBLY
FIGURE 1-6. DRIVE HUB ASSEMBLY (Prior to SN 0300039594)
FIGURE 1-8. DRIVE MOTOR ASSEMBLY - REAR
FIGURE 1-9. DRIVE MOTOR ASSEMBLY - FRONT
FIGURE 1-10. DRIVE VALVES INSTALLATIONS
FIGURE 1-11. TOW BAR INSTALLATION
FIGURE 1-12. SEMI-TRACK INSTALLATION
SECTION 2 - TURNTABLE
FIGURE 2-1. CONTROL VALVES INSTALLATIONS
FIGURE 2-2. MAIN CONTROL VALVE ASSEMBLY - PROPORTIONAL
FIGURE 2-3. TURNTABLE AND SWING DRIVE INSTALLATIONS
FIGURE 2-4. SWING MOTOR ASSEMBLY
FIGURE 2-5. SWING BEARING ASSEMBLY
FIGURE 2-6. DEUTZ ENGINE INSTALLATION
FIGURE 2-7. GENERATOR INSTALLATION - DEUTZ MACHINES (OPTIONAL)
FIGURE 2-8. FORD ENGINE INSTALLATION (WITH CARBURETOR) (Prior to SN 0300046089)
FIGURE 2-10. DUAL FUEL INSTALLATIONS (FORD MACHINE OPTION) (Prior to SN 0300046089)
FIGURE 2-11. DUAL FUEL INSTALLATIONS (FORD MACHINE OPTION) (SN 0300046089 through 0300065080)
FIGURE 2-12. GENERATOR INSTALLATION - FORD MACHINES (OPTIONAL)
FIGURE 2-13. ISUZU ENGINE INSTALLATION
FIGURE 2-14. GENERATOR INSTALLATION - ISUZU MACHINES (OPTIONAL)
FIGURE 2-15. PISTON PUMP ASSEMBLY
FIGURE 2-16. TANK INSTALLATIONS
FIGURE 2-17. GROUND CONTROL BOX ASSEMBLY
FIGURE 2-18. ELECTRICAL OPTIONS INSTALLATION (TURNTABLE MOUNTED)
FIGURE 2-19. HOODS INSTALLATION
SECTION 3 - BOOM
FIGURE 3-1. TOWER/MID BOOMS AND CYLINDERS INSTALLATION
FIGURE 3-2. MAIN BOOM AND CYLINDERS INSTALLATION - 450A
FIGURE 3-3. MAIN BOOM AND CYLINDERS INSTALLATION - 450AJ
FIGURE 3-4. MAIN BOOM ASSEMBLIES
FIGURE 3-5. BOOM COVERS, CABLES AND CLAMPS INSTALLATION
SECTION 4 - PLATFORM
FIGURE 4-1. PLATFORM INSTALLATION
FIGURE 4-2. PLATFORM CONSOLE ASSEMBLY
FIGURE 4-3. CONTROLLER ASSEMBLY (LIFT AND SWING) (Prior to SN 0300039857)
FIGURE 4-5. CONTROLLER ASSEMBLY (DRIVE AND STEER) (Prior to SN 0300039857)
FIGURE 4-7. CONTROLLER ASSEMBLY (SPEED)
SECTION 5 - CYLINDER
FIGURE 5-1. AXLE LOCKOUT CYLINDER ASSEMBLY
FIGURE 5-2. PLATFORM LEVEL CYLINDER ASSEMBLY
FIGURE 5-3. LIFT CYLINDER ASSEMBLY - JIB (450AJ ONLY)
FIGURE 5-4. LIFT CYLINDER ASSEMBLY - MAIN
FIGURE 5-5. LIFT CYLINDER ASSEMBLY - MID
FIGURE 5-6. LIFT CYLINDER ASSEMBLY - TOWER
FIGURE 5-7. ROTATOR CYLINDER ASSEMBLY - PLATFORM
FIGURE 5-8. STEER CYLINDER ASSEMBLY (ORIGINAL EQUIPMENT)

FIGURE 5-9. STEER CYLINDER ASSEMBLY (SERVICE REPLACEMENT)

FIGURE 5-10. TELESCOPE CYLINDER ASSEMBLY

SECTION 6 - HYDRAULIC

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

FIGURE 6-2. TOW BAR HYDRAULIC DIAGRAM

FIGURE 6-3. AXLE LOCKOUT HYDRAULIC DIAGRAM - 4WD

FIGURE 6-4. DRIVE HYDRAULIC DIAGRAM - 2WD

FIGURE 6-5. DRIVE HYDRAULIC DIAGRAM - 4WD

FIGURE 6-6. STANDARD HYDRAULIC DIAGRAM

FIGURE 6-7. HYDRAULIC DIAGRAM LIST

SECTION 7 - ELECTRICAL

FIGURE 7-1. ELECTRICAL DIAGRAM LIST

FIGURE 7-2. ELECTRICAL SCHEMATIC - DEUTZ ENGINE MACHINES

FIGURE 7-3. ELECTRICAL SCHEMATIC - FORD ENGINE MACHINES WITH CARBURETOR

FIGURE 7-4. ELECTRICAL SCHEMATIC - FORD ENGINE MACHINES WITH EFI

FIGURE 7-5. ELECTRICAL SCHEMATIC - ISUZU ENGINE MACHINES

FIGURE 7-6. HARNESS COMPONENTS INSTALLATION

SECTION 8 - DECALS

FIGURE 8-1. DECALS INSTALLATION (STANDARD)

FIGURE 8-2. DECALS INSTALLATION (COUNTRY SPECS)

SECTION 9 - RECOMMENDED SERVICE PARTS STOCK

FIGURE 9-1. MODELS 450A/450AJ WITH PROPORTIONAL CONTROLS STANDARD PARTS

FIGURE 9-2. MODELS 450A/450AJ WITH PROPORTIONAL CONTROLS VARIABLE PARTS

Show all 27 sections

SECTION 10 - SPECIAL OPTIONS

FIGURE 10-1. SPECIAL OPTIONS

PART NUMBER INDEX

Inside this manual

Real pages from this parts manual (266 pages). Open the sample pages (PDF, 505 KB)

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

Parts illustration, page 101: FIGURE 2-15. PISTON PUMP ASSEMBLY
Parts illustration, page 129: SECTION 3 - BOOM
Parts illustration, page 141: SECTION 4 - PLATFORM

Other manuals for this machine

Save 10% on 2 manuals, 15% on 3 or more. Other manuals for the 450A, 450AJ 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 3120750$69.87

Service manuals

Service Manual 3120749 · 152 pagesCovers 450A, 450AJSerial: Prior to 0300065080, Exclude Serial Number Range: 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, 0300064924, 0300064927, 0300064928, 0300064933, 0300064934, 0300065012, 0300065014, 0300065015, 0300065028, 0300065031, 0300065032, 0300065046, 0300065049, 0300065050, 0300065063, 0300065066, 0300065067, 0300065078$69.85Details

Service Manual 3120869 · 116 pagesCovers 450A, 450AJSerial: Prior to 0300065080, Exclude Serial Number Range: 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, 0300064924, 0300064927, 0300064928, 0300064933, 0300064934, 0300065012, 0300065014, 0300065015, 0300065028, 0300065031, 0300065032, 0300065046, 0300065049, 0300065050, 0300065063, 0300065066, 0300065067, 0300065078$69.69Details

Service Manual 3121659 · 652 pagesCovers 450A, 450AJSerial: Prior to B300005761, 0300199221-0300199224, 0300200428, 0300201105-0300201109, 0300201481, 0300201482, 0300201528, 0300201529, 0300201575-0300201577, 0300201623, 0300201624, 0300201668, 0300201811-0300201814, 0300201858-0300201862, 0300201906-0300201910, 0300201954-0300201958, 0300201991-0300272317, 1300007279-1300007373, E300002833-E300007990, Exclude Serial Number Range: 0300272185-0300272190, B300005569, E300007814$69.61Details

Service Manual 31215022 · 686 pagesCovers 450A, 450AJ$69.65Details

Service Manual 31217149 · 688 pagesCovers 450A, 450AJ$69.53Details

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, 266 pages

Quantity one is the manual described above.

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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

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).