JLG 340AJ Service Manual User Manual
Service and maintenance manual, Model 340aj
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Table of contents
Document Outline
- Section A. INTRODUCTION - MAINTENANCE SAFETY PRECAUTIONS
- Section 1. Specifications
- Section 2. General
- Section 3. Chassis & Turntable
- 3.1 Tires and Wheels
- 3.2 Drive Orientation System
- 3.3 Beyond Transport Position - Drive Speed Cutback System
- 3.4 Drive/Steer - Boom Function Interlock System (CE ONLY)
- 3.5 Drive System
- 3.6 Drive Motor
- 3.7 Drive Hub
- Roll, Leak and Brake Testing
- Tightening and Torquing Bolts
- Measuring Rolling Torque
- Main Disassembly
- Housing-Spindle Disassembly
- Spindle-Brake Subassembly Disassembly
- Cover Disassembly
- Planet Gear Subassembly
- Spindle-Brake Subassembly
- Housing-Spindle Subassembly
- Housing-Ring Gear Subassembly
- Cover Subassembly
- Main Assembly
- Integral Brake Check Procedure
- 3.8 Oscillating Axle System
- 3.9 Chassis Tilt Indicator System
- 3.10 Swing Motor
- 3.11 Swing Drive
- 3.12 Engine Operating States
- 3.13 Engine Start Conditions
- 3.14 Engine rPM Levels
- 3.15 Engine controls
- 3.16 Engine Startup Procedure (Kubota)
- 3.17 Kubota Engine
- 3.18 GM Dual Fuel Engine
- 3.19 Fuel Reserve / Cut-Out System
- 3.20 Cold Start System (Diesel Engine)
- 3.21 Generator
- 3.22 Counterweight
- Section 4. Boom & Platform
- Section 5. Hydraulics
- 5.1 Lubricating O-Rings in the Hydraulic System
- 5.2 Hydraulic Cylinders
- 5.3 Drive Pump
- Description
- The System Circuit
- High Pressure Relief Valve (HPRV) and Charge Check
- Charge Pressure Relief Valve
- Electrical Displacement Control (EDC)
- Disassembly
- Inspection
- Assembly
- Port Locations and Gauge Installation
- Fastener Size and Torque Chart
- Plug Size and Torque Chart
- Initial Startup Procedures
- Troubleshooting
- Pump Adjustment
- Displacement Limiter Adjustment
- Control Neutral Adjustment
- Mechanical Neutral Adjustment
- Removing the Pump
- Electric Control Module
- Control Solenoids
- Shaft Seal, Roller Bearing and Shaft Replacement
- Charge Check / HPRV
- Charge Pressure Relief Valve
- Pressure Limiter Valve Replacement
- 5.4 Gear Pump
- 5.5 Pressure Setting Procedure
- 5.6 Oil Sampling
- Section 6. JLG Control System
- Section 7. Basic Electrical Information & Schematics