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• DEPARTMENT OF THE ARMY TECHNICAL MANUAL
• WARNING
• DIRECT AND GENERAL SUPPORT MAINTENANCE MANUAL
• TABLE OF CONTENTS
• TABLE OF CONTENTS - CONT
• LIST OF ILLUSTRATIONS
• LIST OF ILLUSTRATIONS - CONT
• CHAPTER 1 INTRODUCTION
• Identification and Tabulated Data
• CHAPTER 2 DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE INSTRUCTIONS
• Table 2-1. Troubleshooting-Continued
• Table 2-1. Troubleshooting-Continued
• Section IV. REMOVAL AND INSTALLATION OF MAJOR COMPONENTS AND ASSEMBLIES
• Figure 2-1. Underside of truck.
•  Drive Axle
•  Steering Valve Unit
• Hydraulic Pump and Motor
• Side Shift Carriage
• Side Shift Carriage - CONT
• Figure 2-5. Side shift carriage.
• Mast Assembly
• Electrical Controls
• Static panel.
• Contactor panel.
• CHAPTER 3 REPAIR OF AXLES
• Figure 3-2. Steering axle, exploded view.
• Cleaning, Inspection, and Repair
• Section II. DRIVE AXLE
• Axle Shaft
• Figure 3-5. Drive axle, exploded view.
• Spindle
• Differential Assembly
• Figure 3-8. Differential carrier, exploded view.
• Figure 3-9. Differential carrier and differential case.
• Figure 3-11. Differential assembly, exploded view.
• Assembly.
• Figure 3-13. Measuring for bearing shims.
• Figure 3-14. Adjusting backlash.
• Section III. WHEELS AND TIRES
• Figure 3-16. Drive wheel, exploded view.
• Steer Wheels
• Figure 3-19. Installing cushion tire.
• CHAPTER 4 REPAIR OF BRAKES
• Figure 4-1. Parking brake, installed view.
• Cleaning, Inspection and Repair.
• Figure 4-3. Parking brake linkage, exploded view.
• Section II. SERVICE BRAKES
• Figure 4-4. Service brake linkage, exploded view.
• Master Cylinder
• Cleaning, Inspection and Repair.
• Cleaning, Inspection and Repair.
• Brake Assembly and Brake Drum
• Figure 4-8. Improper lining wear.
• CHAPTER 5 REPAIR OF STEERING- SYSTEM
• Figure 5-2. Power steering pump, exploded view.
• Section II. STEERING PUMP AND CYLINDER
• Power Steering Cylinder and Drag Link
• Figure 5-3. Steering cylinder and drag link.
• Section III. STEERING VALVE UNIT AND HYDRAULIC LINES
• Figure 5-4. Steering valve unit, exploded view.
• Cleaning, Inspection and Repair.
• Assembly
• Steering Hydraulc System
• Figure 5-8. Steering hydraulic system, exploded view.
• Installation.
• CHAPTER 6 REPAIR OF FRAME AND COVERS
• Figure 6-1. Frame and covers, exploded view.
• Frame
• CHAPTER 7 REPAIR OF HYDRAULIC LIFT COMPONENTS
• Figure 7-1. Hydraulic lift system, schematic diagram.
• Hydraulic Pump
• Figure 7-2. Hydraulic pump, exploded view.
• Assembly.
• Section II. CONTROL VALVE
• Hydraulic Control Valve
• Figure 7-6. Control Valve, removal and installation.
• Figure 7-7. Control valve, explode view.
• Cleaning, Inspection and Repair.
• Control Valve Linkage
• Figure 7-8. Control valve linkage, exploded view.
• Section III. HYDRAULIC CYLINDERS
• Figure 7-9. Tilt cylinder, exploded view.
• Hoist Cylinders
• Figure 7-11. Mast assembly, exploded view.
• Disassembly.
• Figure 7-12. Cluster cylinder, exploded view.
• Remove pin (3) from tube.
• Figure 7-13. Single hoist cylinder, exploded view.
• Section IV. SIDE SHIFT INSTALLATION
• Side Shift Cylinder
• Side Shift Carriage
• Figure 7-15. Side shift carriage, exploded view.
• Figure 7-16. Carriage roller stud locations.
• Side Shift Hoses
• Figure 7-18. Side shift hoses, exploded view.
• Section V. MAST 7-14. Description
• Figure 7-21. Mast bearing stud locations.
• Assembly.
• Section VI. HYDRAULIC RESERVOIR AND HOSES
• Figure 7-23. Hydraulic hoses, exploded view.
• Hydraulic Reservoir
• Figure 7-24. Hydraulic reservoir, exploded view.
• Disassembly.
• CHAPTER 8 REPAIR OF ELECTRIC MOTORS
• Removal.
• Figure 8-3. Drive motor, exploded view.
• Cleaning. Inspection and Repair.
• Figure 8-7. Undercutting mica.
• Section II. HYDRAULIC PUMP MOTOR
• Figure 8-10. Hydraulic pump motor, exploded view.
• Disassembly.
• Section III. POWER STEERING PUMP MOTOR
• Cleaning, Inspection and Repair.
• CHAPTER 9 REPAIR OF DRIVE CONTROL COMPONENTS
• Figure 9-1. Wiring diagram.
• Drive Control Components
• Contactor Panel
• Operation
• Figure 9-4. Control cycles.
• Hydraulic Pump Circuit.
• Section II. DRIVE CONTROL TESTS AND ADJUSTMENTS
• Ground Test
• Power Switch Module Test
• Figure 9-6. Static panel, top and side view.
• Control Board Output Test
• Drive Regulator Module Test
• Mechanical Switching Tests
• Plugging Potentiometer Adjustment
• Table 9-1. Diode Suppressor Module Tests
• Pump Contactor Point Check
• Section III. REPAIR OF DRIVE CONTROL COMPONENTS
• Figure 9-14. Accelerator control, exploded view.
• Disassembly.
• Figure 9-15. Accelerator control box, exploded view.
• Assembly.
• Forward and Reverse Switch
• Figure 9-16. Instrument panel and control lever, exploded view.
• Disassembly.
• Figure 9-17. Forward and reverse switch, exploded view.
• Contactor Panel
• Figure 9-18. Contactor panel harness wiring diagram.
• Figure 9-19. Cable diagram.
• Figure 9-20. Wiring harness.
• Remove screws
• Figure 9-21. Contactor panel, exploded view.
• Hydraulic Pump and Emergency Cutout Contactors
• Figure 9-22. Pump and emergency cutout contactors, exploded view.
• Forward and Reverse Contactors
• Figure 9-23. Forward and reverse contactor, exploded view.
•  Diode and Resistor Assembly
• Figure 9-24. Diode and resistor assembly, exploded view.
• Static Panel
• Figure 9-25. Static panel assembly, exploded view.
• Battery Receptacle
• INDEX
• INDEX - CONT
• APPENDIX A REFERENCES
• RECOMMENDED CHANGE TO EQUIPMENT TECHNICAL PUBLICATION
• TM-10-3930-631-34
• BLANK PAGE
• By Order of the Secretary of the Army:
• By Order of the Secretary of the Army: