JLG 1043, 1055, 1255, 642, 742, 943 Telehandler Service Manual
566 pages · Publication 31211033
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What's inside
From the manual's own table of contents: 8 sections, 95 entries. See sample pages (PDF, 537 KB)
Safety Practices7 topics
- Introduction
- Disclaimer
- Operation & Safety Manual
- Do Not Operate Tags
- Safety Information
- Safety Instructions
- Safety Decals
General Information and Specifications8 topics
- Replacement Parts and Warranty Information
- Specifications
- Fluid and Lubricant Capacities
- Service and Maintenance Schedules
- Lubrication Schedule
- Thread Locking Compound
- Torque Charts
- Hydraulic Connection Assembly and Torque Specification
Boom19 topics
- Boom System Component Terminology
- Boom System
- Boom Removal/Installation
- Third Boom Section Removal/Installation Only - 642, 742, 943, 1043
- Boom Assembly Maintenance - 1055, 1255
- Fourth Boom Section Removal/Installation Only - 1055, 1255
- Hose Carrier Assembly - 1055, 1255
- Boom Sections Adjustment - 1055, 1255
- Boom Extend and Retract Chains
- Boom Wear Pads
- Quick Coupler
- Forks
- Emergency Boom Lowering Procedure
- Troubleshooting
- Operator Cab Component Terminology
- Operator Cab
- Cab Components
- Cab Removal
- Cab Installation
Axles, Drive Shafts, Wheels and Tires10 topics
- Axle, Drive Shaft and Wheel Component Terminology
- Axle Serial Number
- Axle Specifications and Maintenance Information
- Axle Replacement
- Brake Inspection
- Steering Angle Adjustment
- Axle Assembly and Drive Shaft Troubleshooting
- Drive Shafts
- Wheels and Tires
- Towing a Disabled Machine
Transmission8 topics
- Transmission Assembly Component Terminology
- Transmission Serial Number
- Specifications and Maintenance Information
- Transmission Replacement
- Transmission Fluid/Filter Replacement
- Transmission Fluid Level Check
- Transmission Cooler Thermal By-Pass Valve
- Torque Converter Diaphragm
Engine7 topics
- Engine Serial Number
- Engine Cooling System
- Engine Electrical System
- Fuel System
- Engine Exhaust System
- Air Cleaner Assembly
- Engine Replacement
Hydraulic System11 topics
- Hydraulic Component Terminology
- Hydraulic Pressure Diagnosis
- Hydraulic Circuits
- Hydraulic Schematic
- Hydraulic Reservoir
- Implement Pump
- Control Valves
- Rear Axle Stabilization (RAS) System
- Precision Gravity Lower System (PGLS)
- Boom Ride Control
- Hydraulic Cylinders
Electrical System17 topics
- Electrical Component Terminology
- Power Distribution Boards
- Electrical System Schematics
- Dielectric Grease Application
- Engine Start Circuit
- Battery
- Electrical Master Switch
- Window Wiper System (if equipped)
- Solenoids, Sensors and Senders
- Dash Switches
- Machine Data
- Analyzer Software Accessibility
- Telematics Gateway
- Multifunction Display
- Fault Codes
- Machine Fault Codes
- Engine Diagnostic
Inside this manual
Real pages from this service manual (566 pages). Open the sample pages (PDF, 536 KB)
- Specifications, page 25: General Information and Specifications
- Diagram, page 321: Cab Harness Electrical Schematic (3 of 4)
- Troubleshooting, page 409: 4. Press center of the Navigation button to start the
- Color page, page 350: Electrical System
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.
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This is a service 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.
Parts manual
Illustrated diagrams with factory part numbers for identifying components and ordering parts. Repair procedures are in the service manual.
Engine service manuals are sometimes sold separately, since certain machine models were offered with more than one engine option.
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, 566 pages
Quantity one is the manual described above.
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60-day returns
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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).