JLG Articulating Boom Lift 450A 450AJ Service And Maintenance Manual 3120869 2000

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JLG Articulating Boom Lift 450A 450AJ Service And Maintenance Manual 3120869 2000
Size: 12.66 MB
Format: PDF
Language: English
Brand: JLG
Type of Machine: Articulating Boom Lift
Type of Manual: Service And Maintenance Manual, Hydraulic And Electric Wiring Diagram
Model: JLG 450A ; 450AJ Articulating Boom Lift
Date: 2000
Parts Number: 3120869
Number of Pages: 116 Pages

Contents:
SECTION A - INTRODUCTION - MAINTENANCE SAFETY PRECAUTIONS

A General​

B Hydraulic System Safety​

C Maintenance​

SECTION 1 - SPECIFICATIONS

1.1 Capacities​

1.2 Component Data​

1.3 Tires​

1.4 Specifications and Performance Data.​

1.5 Torque Requirements​

1.6 Lubrication.​

1.7 Pressure Settings - PSI (Bar).​

1.8 Major Component Weights​

1.9 Critical Stability Weights​

1.10 Cylinder Specifications​

1.11 Function Speeds (in Seconds)​

1.12 Serial Number Location.​

SECTION 2 - PROCEDURES

2.1 General​

2.2 Service and Guidelines​

2.3 Lubrication and Information​

2.4 Cylinders - Theory of Operation​

2.5 Valves - Theory of Operation.​

2.6 Boom Maintenance​

2.7 Drift Test​

2.8 Cylinder Checking Procedure.​

2.9 Cylinder Repair​

2.10 Mid and Lower Lift Cylinder Bleeding Procedure​

2.11 Hydraulic Pump (gear)​

2.12 Swing Bearing​

2.13 Worm gear.​

2.14 Boom Synchronizing Procedure.​

2.15 Extend-A-Reach.​

2.16 Adjustment Procedure For Lockout Valve​

2.17 Torque Hub (Prior to S/N 39594)​

2.18 Torque Hub (S/N 39594 to Present)​

2.19 Drive Brake (Ausco)​

2.20 Boom Limit Switches.​

2.21 Lift Up and Platform Level Down Disable Switch​

2.22 Throttle Checks and Adjustments - Deutz Engine​

2.23 Drive and Steer Controller.​

2.24 Lift and Swing Controller.​

2.25 Function Control​

2.26 Tilt Alarm Switch​

2.27 Pressure Setting Procedures​

2.28 Hydraulic Component Start-Up Procedures and Recommendations​

2.29 Semi-Track​

2.30 Preventive Maintenance and Inspection Schedule.​

SECTION 3 - TROUBLESHOOTING

3.1 General​

3.2 Troubleshooting​

3.3 Hydraulic Circuit Checks.​