JLG Scissor Lift 3394RT 4394RT Service & Maintenance Manual 3121133 2025

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JLG Scissor Lift 3394RT 4394RT Service & Maintenance Manual 3121133 2025
Size: 11.10 MB
Format: PDF
Language: English
Brand: JLG
Type of Machine: Scissor Lift
Type of Manual: Service & Maintenance Manual, Electrical and Hydraulic Diagrams
Model: JLG 3394RT, 4394RT Scissor Lift
Part Number: 3121133
Publication Date: 2025
Number of Pages: 228 Pages

Contents:
Service & Maintenance Manual

Section A. Introduction - Maintenance Safety Precautions​

A.A General​

A.B Hydraulic System Safety​

A.C Maintenance​

Section 1. Specifications​

1.1 Specifications​

1.2 Capacities​

1.3 Engines​

1.4 Tires​

1.5 Machine Dimensions​

1.6 Pressure Settings​

1.7 Serial Number Locations​

1.8 Sensors​

1.9 Cylinder Specifications​

1.10 Major Component Weights​

1.11 Critical Stability Weights​

1.12 Lubrication Specifications​

1.13 Operator Maintenance​

1.14 Torque Charts​

Section 2. General​

2.1 Machine Preparation, Inspection, and Maintenance​

2.2 Service and Guidelines​

2.3 Lubrication and Information​

2.4 Cylinder Drift Test​

2.5 Pins and Composite Bearing Repair Guidelines​

2.6 Preventive Maintenance and Inspection Schedule​

Section 3. Chassis & Scissor Arms​

3.1 Operating Characteristics​

3.2 Calibrations​

3.3 Level Sensor and Analyzer Connections​

3.4 Integrated Torque/drive hub​

3.5 Dual Fuel/LPG System​

3.6 Ford EFI Engine​

3.7 Generator - Ford Engine​

3.8 Deutz EMR 2 (S/N 0200138634 to Present)​

3.9 Generator - Duetz Engine​

3.10 GM Engine General Maintenance​

3.11 Generator - GM Engine​

3.12 GM Engine Dual Fuel System​

3.13 GM Engine Fuel System Repair​

3.14 GM Engine LPG Fuel System Diagnosis​

3.15 Joystick Controller​

Section 4. Hydraulics​

4.1 Cylinders - Theory of Operation​

4.2 Valves - Theory of Operation​

4.3 Component Functional Description​

4.4 Cylinder Checking Procedure​

4.5 Cylinder Repair​

4.6 Drive Pump Start-up Procedure​

4.7 Hydraulic Component Start-Up Procedures and Recommendations​

4.8 Hydraulic Gear Pump​

4.9 Main Valve​

4.10 Drive Header Valve (2WD)​

4.11 Drive Header Valve (4WD)​

4.12 Header Valves (4WD)​

4.13 dIRECTIONAL vALVE​

4.14 pOWER dECK sANDWICH vALVE​

4.15 Power Deck Manifold Valve​

4.16 Hydraulic Pump​

4.17 Cylinder Assemblies​

Section 5. JLG Control System​

5.1 Hand Held Analyzer​

5.2 Flash Codes and Descriptions​

Section 6. General Electrical Information & Schematics​

6.1 General​

6.2 Multimeter Basics​

6.3 Applying Silicone Dielectric Compound To Amp Connectors​

6.4 Working With Deutsch Connectors​

6.5 Switches​

6.6 Schematics​