JLG 120HX Boom Lift Parts Manual

Name: JLG 120HX Boom Lift Parts Manual
Brand: MidWestTech
SKU: 3120687
Price: 69.51 USD
Availability: InStock

210 pages · Publication 3120687

$69.51

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Models: 120HX
Manual type: Parts Manual
Pages: 210
Publication: 3120687
Condition: Brand new

JLG 120HX Boom Lift Parts Manual, publication 3120687

What's inside

From the manual's own table of contents: 71 sections, 80 entries. See sample pages (PDF, 491 KB)

Search the contents

General1 topic

TABLE OF CONTENTS SECTION 1 - FRAME

FRAME, VALVES AND SHIELDS INSTALLATION

VALVE ASSEMBLY - HYDRO AIR

STEERING AND AXLES INSTALLATION

TIRE AND WHEEL DRIVE INSTALLATIONS

DRIVE HUB ASSEMBLY

DRIVE BRAKE ASSEMBLY

DRIVE MOTOR ASSEMBLY - REXROTH

JACK CYLINDER INSTALLATION

SECTION 2 - TURNTABLE

TURNTABLE, BOOM AND SWITCHES INSTALLATION

VALVES INSTALLATION - TURNTABLE MOUNTED

VALVES ASSEMBLY - HYDRO AIR (PRIOR TO S/N 38697)

VALVES ASSEMBLY - HYDRO AIR (S/N 38697 TO PRESENT)

ROTARY COULPING AND COLLECTOR RING ASSEMBLY AND INSTALLATION

SWING DRIVE AND BEARING INSTALLATION

SWING MOTOR ASSEMBLY

SWING BRAKE ASSEMBLY

SWING HUB ASSEMBLY

LOAD MANAGEMENT INSTALLATION

GROUND CONTROLS INSTALLATION

REMOTE DRIVE CONTROL BOX ASSEMBLY (PRIOR TO JULY 1992)

REMOTE DRIVE CONTROL BOX ASSEMBLY (JULY 1992 TO PRESENT)

DEUTZ F4L-912 ENGINE INSTALLATION

Show all 72 sections

GENERATOR INSTALLATION- DEUTZ

PUMP COUPLING INSTALLATION

PUMP ASSEMBLY - SUNSTRAND

PUMP ASSEMBLY - BARNES (OCTOBER 1992 TO S/N 38697)

PUMP ASSEMBLY - HYDRO-AIR (S/N 38697 TO PRESENT)

TANKS INSTALLATION

HOOD INSTALLATION

OIL COOLER INSTALLATION

SECTION 3 - BOOM

BOOM ASSEMBLY COMPONENTS INSTALLATION

CHAIN ADJUSTER ASSEMBLIES

JIB BOOM INSTALLATION

EXTEND-A-REACH INSTALLATION

BOOM LENGTH INDICATOR AND LIMIT SWITCHES INSTALLATION

BOOM WIPERS INSTALLATION

SECTION 4 - PLATFORMS

PLATFORM COMPONENTS INSTALLATION (LOW MOUNT)

ROTATOR MOTOR ASSEMBLY

PLATFORM CONSOLE ASSEMBLY

OPTIONAL PLATFORM MOUNTED COMPONENTS

SECTION 5 - CYLINDERS

AXLE EXTENSION CYLINDER ASSEMBLY

BOOM LIFT CYLINDER ASSEMBLY

EXTEND-A-REACH LEVEL CYLINDER ASSEMBLY

EXTEND-A-REACH LIFT CYLINDER ASSEMBLY

JACK CYLINDER ASSEMBLY

MASTER CYLINDER ASSEMBLY

STEER CYLINDER ASSEMBLY

TELESCOPE CYLINDER ASSEMBLY

CYLINDER BELLOWS INSTALLATION (OPTIONAL)

SECTION 6 - HYDRAULICS

HYDRAULIC DIAGRAM - STANDARD (PRIOR TO S/N 38697)

HYDRAULIC DIAGRAM - STANDARD (S/N 38697 TO PRESENT)

HYDRAULIC DIAGRAM LIST

SECTION 7 - ELECTRICAL

ELECTRICAL DIAGRAM - BOOM LENGTH INDICATOR

ELECTRICAL DIAGRAM - 4WS

ELECTRICAL DIAGRAM - FRAME

ELECTRICAL DIAGRAM - PLATFORM. (PRIOR TO S/N 38697)

ELECTRICAL DIAGRAM - PLATFORM (S/N 38697 TO PRESENT) (SHEET 1 OF 2)

ELECTRICAL DIAGRAM - STANDARD (PRIOR TO S/N 38697) (SHEET 1 OF 4)

ELECTRICAL DIAGRAM - STANDARD (S/N 38697 TO PRESENT) (SHEET 1 OF 4)

ELECTRICAL COMPONENTS AND DIAGRAM CHART

SECTION 8 - DECALS

DECALS INSTALLATION

SECTION 9 - RECOMMENDED SERVICE PARTS STOCK

SECTION 10 - SPECIAL OPTIONS

FRAME8 topics

FRAME, VALVES AND SHIELDS INSTALLATIONS
VALVE ASSEMBLY - HYDRO AIR
STEERING AND AXLES INSTALLATION
WHEEL DRIVE INSTALLATION
DRIVE HUB ASSEMBLY
DRIVE BRAKE ASSEMBLY
DRIVE MOTOR ASSEMBLY - REXROTH
JACK CYLINDER INSTALLATION

Inside this manual

Real pages from this parts manual (210 pages). Open the sample pages (PDF, 490 KB)

Sample pages from the JLG 120HX Boom Lift Parts Manual: Parts illustration, Parts illustration, Parts illustration

Parts illustration, page 119: SECTION 3 BOOM
Parts illustration, page 155: SECTION 5 CYLINDERS
Parts illustration, page 194: SECTION 7 ELECTRICAL

Other manuals for this machine

Save 10% on 2 manuals, 15% on 3 or more. Other manuals for the 120HX 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 3120687$69.51

Service manuals

Service Manual 3120686 · 114 pagesCovers 120HX$69.73Details

Service Manual 3120819 · 116 pagesCovers 120HX$69.79Details

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).