JLG Telehandler 8042 / 10042 / 10054 Service Manual
Comprehensive service and repair manual for JLG 8042, 10042, and 10054 telehandlers. Covers all maintenance, troubleshooting, and part replacement procedures. PN: 8990396 C.
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Models Covered & Key Technical Specifications
JLG Telehandler Service Manual: 8042, 10042, 10054 - Diagnostics, Safety & Maintenance Hydraulic-Guide
Integrated Documentary Specification | Kit. Design Specs: 41' 11" maximum lift height, boom extended for vertical reach Capability. Nominal Velocity Specs: 0-20 mph (0-32.2 km/hr) defines the maximum travel speed Parameters. Technical Velocity Specs: 225.25" (5.721 mm) length without attachment establishes the overall machine dimension Standards. Standard Specs: 18.0" (457 mm) ground clearance for operational movement Margin. Principal Specifications: 68.5° maximum boom lift angle dictates the steepest angle Architecture. Key Specs: 102.0" (2.591 mm) width (outriggers up) represents the machine's stowed size Norms.
Professional Workshop Service Manual & Technical Specifications
JLG Telehandler Service Manual: 8042, 10042, 10054 - Diagnostics, Safety & Maintenance Hydraulic-Guide
Series-Validation: JLG Telehandlers // Equipment-Series: 8042, 10042, 10054 Legacy // Series-Validation: Telehandler
| Metric | Technical-Path | Architecture |
|---|---|---|
| Model | 8042, 10042, 10054 | Component Terminology |
| Safety | Practices | Information |
| General | Information & Specifications | Data |
| Boom | Systems | Components |
| Axles, Drive Shafts, Wheels and Tires | Specifications | Data |
Coverage is segmented into:
Safety Practices
Provides essential safety information, including hazard statements, warnings, and precautions. Covers personal and equipment hazards, as well as general and operational safety considerations. Outlines procedures for accident prevention and emergency information decal locations.
General Information and Specifications
Details component terminology, service methods, and essential specifications for the JLG telehandler models. Includes torque values, metric conversion factors, vehicle dimensions, and tire information. Also covers fluids, lubricants, capacities, and electrical system specifications.
Boom
Covers the boom system for four-section booms (10054), including system description, operation, and maintenance. Details boom chain inspection and adjustment for both three-section and four-section booms, with specific procedures for extend and retract chains.
Engine: Cummins 4BT3.9 and 4BTA3.9
Provides engine manufacturer specifications, including horsepower, displacement, and fuel delivery. Details engine oil and cooling system requirements, as well as fuel tank capacity and specifications.
Hydraulic System
Covers hydraulic fluid specifications, system capacity, and reservoir capacity. Details hydraulic relief valve settings for different models and includes information on hydraulic systems, pumps, cylinders, and troubleshooting. ...documents torque specifications for various components to ensure proper oscillation integrity.
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