JLG 340AJ Boom Lift Parts Manual

Name: JLG 340AJ Boom Lift Parts Manual
Brand: MidWestTech
SKU: 3121260
Price: 69.83 USD
Availability: InStock

210 pages · Publication 3121260

$69.83

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Models: 340AJ
Serial coverage: Prior to 0300200802
Manual type: Parts Manual
Pages: 210
Publication: 3121260
Condition: Brand new

JLG 340AJ Boom Lift Parts Manual, publication 3121260

What's inside

From the manual's own table of contents: 14 sections, 67 entries. See sample pages (PDF, 470 KB)

Search the contents

General53 topics

SECTION 1 - FRAME
FIGURE 1-1. AXLE AND STEERING INSTALLATION
FIGURE 1-2. TIRE AND WHEEL DRIVE INSTALLATION
FIGURE 1-3. DRIVE MOTOR ASSEMBLY
FIGURE 1-4. DRIVE HUB/BRAKE ASSEMBLY
FIGURE 1-5. DRIVE VALVES AND FRAME SHIELDS INSTALLATIONS
SECTION 2 - TURNTABLE
FIGURE 2-1. CONTROL VALVE AND CHARGE FILTER 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. TURNTABLE BEARING ASSEMBLY
FIGURE 2-6. GM ENGINE INSTALLATION
FIGURE 2-7. KUBOTA ENGINE INSTALLATION
FIGURE 2-8. AXIAL PUMP ASSEMBLY
FIGURE 2-9. GEAR PUMP ASSEMBLY
FIGURE 2-10. TANK INSTALLATIONS
FIGURE 2-11. ELECTRICAL COMPONENTS INSTALLATION (TURNTABLE MOUNTED)
FIGURE 2-12. GROUND CONTROL ASSEMBLY
FIGURE 2-13. HOODS INSTALLATION
FIGURE 2-14. GENERATOR INSTALLATION - GM ENGINE MACHINES (OPTIONAL)
FIGURE 2-15. GENERATOR INSTALLATION - KUBOTA ENGINE MACHINES (OPTIONAL)
FIGURE 2-16. 220V/50HZ 4000W GENERATOR INSTALLATION - KUBOTA ENGINE MACHINES (OPTIONAL)
FIGURE 2-17. 110V/60HZ 4000W GENERATOR INSTALLATION - KUBOTA ENGINE MACHINES (OPTIONAL)
SECTION 3 - BOOM
FIGURE 3-1. BOOM AND CYLINDERS INSTALLATION
FIGURE 3-2. TOWER BOOM ASSEMBLY
FIGURE 3-3. MAIN BOOM ASSEMBLY
FIGURE 3-4. JIB ASSEMBLY AND PLATFORM SUPPORT INSTALLATION
FIGURE 3-5. PLATFORM ROTATOR ASSEMBLY
FIGURE 3-6. PLATFORM SUPPORT INSTALLATION - WITH LSS
FIGURE 3-7. BOOM VALVES INSTALLATION
FIGURE 3-8. BOOM VALVE ASSEMBLIES
FIGURE 3-9. BOOM CABLES AND CLAMPS INSTALLATION - 4000W, 50HZ
FIGURE 3-10. BOOM CABLES AND CLAMPS INSTALLATION - 4000W, 60HZ
SECTION 4 - PLATFORM
FIGURE 4-1. PLATFORM ASSEMBLY
FIGURE 4-2. PLATFORM CONSOLE ASSEMBLY
FIGURE 4-3. CONTROLLER ASSEMBLY (LIFT AND SWING) (Prior to SN 0300188632)
FIGURE 4-5. CONTROLLER ASSEMBLY (DRIVE AND STEER) (Prior to SN 0300188632)
FIGURE 4-7. RAIL EXTENSION (30IN X 60IN)
SECTION 5 - CYLINDER
FIGURE 5-1. AXLE LOCKOUT CYLINDER ASSEMBLY
FIGURE 5-2. LEVEL (PLATFORM SLAVE) CYLINDER ASSEMBLY (ORIGINAL EQUIPMENT)
FIGURE 5-3. LEVEL (PLATFORM SLAVE) CYLINDER ASSEMBLY (SERVICE REPLACEMENT)
FIGURE 5-4. LIFT (JIB) CYLINDER ASSEMBLY
FIGURE 5-5. LIFT (MAIN BOOM) CYLINDER ASSEMBLY
FIGURE 5-6. LIFT (TOWER BOOM) CYLINDER ASSEMBLY
FIGURE 5-7. MASTER CYLINDER ASSEMBLY
FIGURE 5-8. STEER CYLINDER ASSEMBLY
FIGURE 5-9. TELESCOPE CYLINDER ASSEMBLY
SECTION 6 - HYDRAULIC
FIGURE 6-1. HYDRAULIC INSTALLATION

FIGURE 6-2. HYDRAULIC DIAGRAM LIST

SECTION 7 - ELECTRICAL

FIGURE 7-1. ELECTRICAL DIAGRAM LIST

FIGURE 7-2. HARNESS COMPONENTS INSTALLATION

SECTION 8 - DECALS

FIGURE 8-1. DECAL INSTALLATION - ANSI SPEC

FIGURE 8-2. DECAL INSTALLATION - ANSI EXPORT SPEC

FIGURE 8-3. DECAL INSTALLATION - AUSTRALIAN AND CE SPECS

SECTION 9 - RECOMMENDED SERVICE PARTS STOCK

FIGURE 9-1. MODEL 340AJ STANDARD PARTS

FIGURE 9-2. MODEL 340AJ VARIABLE PARTS

SECTION 10 - SPECIAL OPTIONS

FIGURE 10-1. SPECIAL OPTIONS

PART NUMBER INDEX

Inside this manual

Real pages from this parts manual (210 pages). Open the sample pages (PDF, 470 KB)

Sample pages from the JLG 340AJ Boom Lift Parts Manual: Parts illustration, Parts illustration, Parts illustration

Parts illustration, page 44: FIGURE 2-7. KUBOTA ENGINE INSTALLATION
Parts illustration, page 182: SECTION 8 - DECALS
Parts illustration, page 200: SECTION 10 - SPECIAL OPTIONS

Other manuals for this machine

Save 10% on 2 manuals, 15% on 3 or more. Other manuals for the 340AJ 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 3121260$69.83

Service manuals

Service Manual 3121259 · 404 pagesCovers 340AJSerial: Prior to 0300272222, Exclude Serial Number Range: 0300272191-0300292192$69.55Details

Service Manual 31215004 · 430 pagesCovers 340AJ$69.57Details

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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.

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, 210 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).