JLG Scissor Lift RT4069 RT4769 ERT4069 ERT4769 Service & Maintenance Manual 31219169

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JLG Scissor Lift RT4069 RT4769 ERT4069 ERT4769 Service & Maintenance Manual 31219169
Size: 94.05 MB
Format: PDF
Language: English
Brand: JLG
Type of Machine: Scissor Lift
Type of Manual: Service & Maintenance Manual, Electrical and Hydraulic Diagrams
Model: JLG RT4069 RT4769 ERT4069 ERT4769 Scissor Lift
Part Number: 31219169
Publication Date: 2024
Number of Pages: 452 Pages

Contents:

Section 1. Specifications​

1.1 Specifications​

1.2 Serial Number Location​

1.3 Lubrication​

1.4 Hydraulic Pressure Settings​

1.5 Hydraulic Cylinder Specifications​

1.6 Engine Specifications​

1.7 Battery Charger (ERT Machines)​

1.8 Elevation/Tilt Limit Settings​

1.9 Threadlocking Compound​

1.10 Torque Charts​

Section 2. General​

2.1 Machine Preparation, Inspection, and Maintenance​

2.2 Preventive Maintenance and Inspection Schedule​

2.3 Service and Guidelines​

2.4 Lubrication and Information​

2.5 Service Maintenance Components​

2.6 Cylinder Drift Test​

2.7 Pins and Composite Bearing Repair Guidelines​

Section 3. Chassis, Platform, & Scissor Arms​

3.1 Operating Characteristics​

3.2 Tires, Wheels & Drive Assembly​

3.3 Drive Hub (2WD For RT)​

3.4 Drive Hub (4WD For RT)​

3.5 Drive Hub (For ERT)​

3.6 Drive Motor (Sauer)​

3.7 Axle Installation​

3.8 Steer Installation​

3.9 Leveling Jacks (If Equipped)​

3.10 Platform​

3.11 Scissor Arms​

3.12 Side Compartment Covers​

3.13 Ground Control Station​

3.14 Battery​

3.15 Tank​

3.16 Battery Charger​

Section 4. Basic Hydraulic Information & Schematics​

4.1 Cylinders - Theory of Operation​

4.2 Valves - Theory of Operation​

4.3 Cylinder Checking Procedure​

4.4 Oscillating Axle - Lockout Cylinder Test​

4.5 Gear Pump Priming​

4.6 Hydraulic Component Start-Up Procedures & Recommendations​

4.7 Hydraulic Connection Assembly and Torque Specification​

4.8 Hydraulic Valves​

4.9 Gear Pump​

4.10 Cylinder Repair​

4.11 Cylinder Assemblies​

4.12 Hydraulic Schematics (For RT)​

4.13 Hydraulic Schematics (For ERT)​

Section 5. JLG Control System​

5.1 Analyzer​

5.2 Analyzer Menu Flow Chart (For RT)​

5.3 Analyzer Menu Flow Chart (For ERT)​

5.4 Diagnostic Troubleshooting Codes (DTC’s) and Flash Codes Description (For RT)​

5.5 Diagnostic Troubleshooting Codes (DTC’s) and Flash Codes Description (For ERT)​

5.6 Chassis Tilt Sensor Installation​

5.7 Location of Additional Sensors​

5.8 Calibration Procedures​

5.9 Service Mode Procedures​

5.10 Machine Configuration and Programming Settings (For RT)​

5.11 Machine Configuration and Programming Settings (For ERT)​

Section 6. LSS Setup/Calibration/Service​

6.1 Connecting the JLG Control System Analyzer​

6.2 Help Menu & Fault Codes​

6.3 Machine Setup Menu​

6.4 Service​

6.5 Calibration​

6.6 Troubleshooting​

Section 7. General Electrical Information & Schematics​

7.1 General​

7.2 Multimeter Basics​

7.3 Applying Silicone Dielectric Compound to Electrical Connections​

7.4 Dielectric Grease Application​

7.5 AMP Connector​

7.6 Working with Deutsch Connectors​

7.7 Switches​

7.8 Electrical Schematics (For RT)​

7.9 Electrical Schematics (For ERT)​