JLG Boom Lift T500J, ET500J Service & Maintenance Manual 3122567500 2026

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JLG Boom Lift T500J, ET500J Service & Maintenance Manual 3122567500 2026
Size: 24.59 MB
Format: PDF
Language: English
Brand: JLG
Type of Machine: Boom Lift
Type of Manual: Service & Maintenance Manual, Electrical and Hydraulic Diagrams
Model: JLG T500J, ET500J Boom Lift
Part Number: 3122567500
Publication Date: 2026
Number of Pages: 344 Pages

Contents:
Safety

General​

1.1.1 Disclaimer​

1.1.2 Operation & Safety Manual​

Safety Information​

1.2.1 Safety Alert System and Signal Words​

Safety Hazards​

1.3.1 Personal Hazards​

1.3.2 Equipment Hazards​

1.3.3 General Hazards​

1.3.4 Operational Hazards​

Safety Decals​

Machine Verification​

General Machine Information and Specifications

Specifications​

2.1.1 Machine Specifications​

2.1.2 Machine Dimensional Data​

2.1.3 Engine​

2.1.4 Tires​

2.1.5 Component Weights​

2.1.6 Pressure Settings​

2.1.7 Electric Power Unit​

2.1.8 Battery​

2.1.9 Batteries (Electric Machines)​

Machine Temperature Chart​

Serial Number Location​

Fluids and Lubrication​

2.4.1 Hydraulic System​

2.4.2 Hydraulic Oil​

2.4.3 Changing Hydraulic Oil​

2.4.4 Lubrication Specifications​

2.4.5 Fluids​

2.4.6 Capacities​

2.4.7 Lubrication Schedule​

Machine Characteristics​

2.5.1 Side Entry Platform​

2.5.2 Platform Control Enable System (Trigger)​

2.5.3 Boom Sensors​

2.5.4 Outrigger Limit Switch​

2.5.5 Automatic Leveling Sensing System​

2.5.6 Hydraulic Manual Descent System​

Maintenance and Inspection Schedules

Machine Preparation, Inspection, and Maintenance​

3.1.1 General​

3.1.2 Preparation, Inspection, and Maintenance​

3.1.3 Pre-Start Inspection​

3.1.4 Pre-Delivery Inspection and Frequent Inspection​

3.1.5 Annual Machine Inspection​

3.1.6 Preventative Maintenance​

3.1.7 Major Structural Inspection​

Service and Guidelines​

3.2.1 General​

3.2.2 Safety and Workmanship​

3.2.3 Cleanliness​

3.2.4 Components Removal and Installation​

3.2.5 Component Disassembly and Reassembly​

3.2.6 Pressure-Fit Parts​

3.2.7 Bearings​

3.2.8 Gaskets​

3.2.9 Bolt Usage and Torque Application​

3.2.10 Hydraulic Lines and Electrical Wiring​

3.2.11 Hydraulic System​

3.2.12 Lubrication​

3.2.13 Battery​

3.2.14 Welding on JLG Equipment​

Preventive Maintenance and Inspection Schedule​

3.3.1 Preventative Maintenance​

Pins and Composite Bearing Repair Guidelines​

Tires and Wheels​

3.5.1 Tire Inflation​

3.5.2 Tire Wear​

Fuel Tank Inspection​

Boom Inspection and Maintenance​

3.7.1 Boom Cleanliness Guidelines​

Hydraulic Filter Replacement​

Turntable Bearing Inspection​

3.9.1 Turntable Bearing Mounting Bolt Condition Check​

3.9.2 Wear Tolerance​

Engine General Inspection​

3.10.1 Throttle & Choke Adjustment​

3.10.2 Fuel Valve Lever​

3.10.3 Checking RPM Level​

3.10.4 Choke Actuator​

3.10.5 Checking Oil Level​

Generator Inspection​

Battery Maintenance and Charging​

3.12.1 Batteries (Electric Machines)​

3.12.2 Quarterly Battery Maintenance​

Battery Charger​

3.13.1 Operating Instructions​

3.13.2 Maintenance Instructions​

3.13.3 Battery Charger Fault Codes​

Testing, Calibrations and Special Procedures

Special Tools​

4.1.1 Multimeter Basics​

4.1.2 Threadlocking Compound​

4.1.3 Tools Catalog​

4.1.4 Checking Switches​

Testing Procedures​

4.2.1 Test from the Platform​

4.2.2 Test from the Ground Station​

Calibration Procedures​

4.3.1 Leveling, Tilt Sensor Calibration​

Special Procedures​

4.4.1 Cylinder Drift​

4.4.2 Breaking-in a New Trailer​

4.4.3 Trailer inspection and Service Instructions​

4.4.4 Hydraulic (Surge) Brakes​

4.4.5 Mechanical Brake Maintenance​

4.4.6 Hubs, Drums and Wheel Bearings​

4.4.7 Coupler Assembly​

4.4.8 Procedure for Retracting Outriggers Using Service Harness (Optional)​

Swing Drive​

System Software

Load Sensing System (LSS)​

JLG Analyzer​

5.2.1 Introduction​

5.2.2 To Connect the JLG Control System Analyzer​

5.2.3 Changing Access Level​

5.2.4 Adjust Parameters​

5.2.5 Machine Setup​

5.2.6 Analyzer Software Versions​

Analyzer Software Accessibility​

5.3.1 Machine Set-Up​

5.3.2 Personalities​

Function Test​

CANBUS Communications​

Service Mode​

Fault Codes

Fault Codes Introduction​

Engine Diagnostic​

Machine Fault Codes​

6.3.1 General​

6.3.2 System Messages​

Machine Diagnostics Parameters​

Hydraulics

General Information and Safety​

Theories of Operation​

7.2.1 Cylinders​

7.2.2 Valves​

7.2.3 Lubricating O-Rings in the Hydraulic System​

Hydraulic Components​

7.3.1 Hydraulic Oil Fill at Startup​

7.3.2 Pressure Setting Procedure​

7.3.3 Valves Identification​

Torque Values​

7.4.1 Cylinder Torque Specification​

7.4.2 Valve Torque Specifications​

Standard Hydraulic Diagram - Boom And Turntable​

Hydraulic Diagram - Chassis​

Electricals

General Information​

8.1.1 Applying Silicone Dielectric Compound to Electrical Connections​

8.1.2 Installation of Dielectric Grease​

8.1.3 Deutsch HD, DT, DTM, DRC Series​

8.1.4 AMP Seal​

8.1.5 AMP Mate-N-Lok​

8.1.6 DIN Connectors​

8.1.7 Exclusions​

8.1.8 Brad Harrison/phoenix Contact M12​

8.1.9 Engine Control Unit Connectors​

Electrical Connectors​

8.2.1 Deutsch Connectors​

Electrical Component Terminology​

Harness Layouts​

Board Layouts​

8.5.1 Ground Control Module​

AMP Connector​

8.6.1 Applying Silicone Dielectric Compound to AMP Connectors​

8.6.2 Assembly​

8.6.3 Disassembly​

8.6.4 Wedge Lock​

8.6.5 Service - Voltage Reading​

Wiring Harness and Connector Label Diagrams​

Telematics Gateway​

Removal and Installation

Wheel and Tire​

9.1.1 Tire Replacement​

9.1.2 Wheel Replacement​

9.1.3 Wheel Installation​

9.1.4 Lug Nuts (Bolts)​

Chassis/Frame Assembly​

9.2.1 Axle Assembly​

9.2.2 Tongue Installation​

9.2.3 Brake replacement​

9.2.4 Hubs, Drums, Wheel Bearings​

Boom​

9.3.1 Main Boom Powertrack​

9.3.2 Boom and Cylinder Assembly​

9.3.3 Main Boom Assembly​

Platform​

9.4.1 Removal​

9.4.2 Installation​

Engine​

Transmission​

Hydraulic Cylinders​

9.7.1 Outrigger Cylinder and Stabilizer​

9.7.2 Master Cylinder​

9.7.3 Main lift cylinder​

9.7.4 Platform Level Cylinder​

9.7.5 Jib Cylinder​

Hydraulic Valves​

Hydraulic Pumps​

9.9.1 Hydraulic Pump (Gear)​

Electrical Components​

9.10.1 Battery​

Tilt Sensor​

9.11.1 Tilt Sensor​

Turntable​

9.12.1 Swing Motor​

9.12.2 Swing Bearing​

Generator and Pulley​

Trailer Jack​

9.14.1 Installation​

9.14.2 Operation​

9.14.3 Maintenance​

9.14.4 Assembly​

Disassembly and Assembly

Boom and Jib Assembly​

10.1.1 Main Boom Assembly​

Platform​

Engine Components​

10.3.1 Engine Disassembly, Inspection and Service​

10.3.2 Fuel Tank​

Pumps​

Hydraulic Cylinders​

10.5.1 Platform, Lift, Telescope, Master and Jib Cylinder​

10.5.2 Outrigger Cylinder​

Hydraulic Valves​

Hydraulic Components​

Turntable​

10.8.1 Swing Motor​

Generator Disassembly and Assembly​

Powertrack​

10.10.1 Remove Link​

10.10.2 Install New Link​

10.10.3 Replace Fixed End Brackets​

10.10.4 Replace Moving End Brackets​

Torque/Connection Information

Hydraulic Fittings​

11.1.1 Tapered Thread Types​

11.1.2 Straight Thread Types, Tube and Hose Connections​

11.1.3 Straight Thread Types, Port Connections​

11.1.4 Flange Connection Types​

11.1.5 Tightening Methods​

11.1.6 Assembly and Torque Specifications​

11.1.7 General Tube Type Fitting Assembly Instructions​

11.1.8 Assembly Instructions for American Standard Pipe Thread Tapered Connections.​

11.1.9 Assembly Instructions for British Standard Pipe Thread Tapered Connections​

11.1.10 Assembly Instructions for 37° (JIC) Flare Fittings​

11.1.11 Assembly Instructions for 45° SAE Flare Fittings​

11.1.12 Assembly Instructions for O-Ring Face Seal (ORFS) Fittings​

11.1.13 Assembly Instructions for DIN 24° Flare Bite Type Fittings (MBTL and MBTS)​

11.1.14 Assembly Instructions for Bulkhead (BH) Fittings​

11.1.15 Assembly Instructions for O-Ring Boss (ORB) Fittings​

11.1.16 Assembly Instructions for Adjustable Port End Metric Fittings​

11.1.17 Assembly Instructions for Metric ISO 6149 (MPP) Port Assembly Stud Ends​

11.1.18 Assembly instructions for Adjustable Port End (BSPP) Fittings​

11.1.19 Assembly Instructions for Flange Connections: (FL61 and FL62)​

11.1.20 Double Wrench Method​

11.1.21 FFWR and TFFT Methods​

11.1.22 Adjustable Stud End Assembly​

11.1.23 O-ring Installation (Replacement)​

Torque Charts​

11.2.1 SAE Fastener Torque Chart​

11.2.2 Metric Fastener Torque Chart​

Schematics

Hydraulic Schematics​

Electrical Schematics​