CHAPTER 1 GENERAL INFORMATION, EQUIPMENT DESCRIPTION, AND THEORY OF OPERATION
GENERAL INFORMATION
LIST OF ABBREVIATIONS/ACRONYMS
SAFETY, CARE, AND HANDLING
EQUIPMENT DESCRIPTION AND DATA
Figure 1. Hydraulic Diagnostic Center (HDC) Control Box.
EQUIPMENT CHARACTERISTICS, CAPABILITIES, AND FEATURES
Figure 2. Hydraulic Diagnostic Center (HDC) Control Box Locator.
Figure 3. M9 ACE Hydraulic System Major Components.
LOCATION AND DESCRIPTION OF MAJOR COMPONENTS
EQUIPMENT DATA
THEORY OF OPERATION
Figure 1. Main Hydraulic Accumulator.
Figure 2. Bowl Area Major Components.
Figure 3. Hydraulic Suspension Components.
Hydraulic Control Valve Operation
Right Suspension Control Valve (3R/17R)
Figure 4. DCV Bank.
CHAPTER 2 TROUBLESHOOTING PROCEDURES
INTRODUCTION TO USING THE HYDRAULIC DIAGNOSTIC CENTER (HDC) SYSTEM TO TROUBLESHOOT THE M9 ACE HYDRAULIC SYSTEM
GENERAL HYDRAULIC SYSTEM TROUBLESHOOTING PROCEDURES
SUSPENDING THE M9 ACE FOR SUSPENSION SYSTEM CHECKS
Figure 1. Hydraulic Diagnostic Center (HDC) Control Box Installation.
Figure 2. Wiring Harness W4 (Umbilical Cable W4) Installation.
HDC CONTROL BOX INSTALLATION
Figure 4. Wiring Harness W4 (Umbilical Cable W4) Removal.
HDC CONTROL BOX INSTALLATION - Continued
Figure 6. Stowage of Hydraulic Diagnostic Center (HDC) Control Box.
TROUBLESHOOTING INDEX
TROUBLESHOOTING PROCEDURES - ALL HYDRAULIC FUNCTIONS INOPERATIVE
Figure 1. Hydraulic Return Line Filter.
Figure 2. Main Pump.
Figure 3. Hydraulic Diagnostic Center (HDC) Control Box.
Figure 4. Directional Control Valve (DCV) Bank.
ALL HYDRAULIC FUNCTIONS INOPERATIVE
Figure 6. Directional Control Valve (DCV) Bank.
Figure 7. Main Pump Relief Valve 13R.
ALL HYDRAULIC FUNCTIONS INOPERATIVE - Continued
ALL HYDRAULIC FUNCTIONS INOPERATIVE - Continued
ALL HYDRAULIC FUNCTIONS INOPERATIVE - Continued
ALL HYDRAULIC FUNCTIONS INOPERATIVE - Continued
Figure 13. Main Pump Relief Valve 13L.
ALL HYDRAULIC FUNCTIONS INOPERATIVE - Continued
ALL HYDRAULIC FUNCTIONS INOPERATIVE - Continued
ALL HYDRAULIC FUNCTIONS INOPERATIVE - Continued
ALL HYDRAULIC FUNCTIONS INOPERATIVE - Continued
ALL HYDRAULIC FUNCTIONS INOPERATIVE - Continued
TROUBLESHOOTING PROCEDURES - APRON AND LEFT-HAND WHEEL CONTROL INOPERATIVE
APRON AND LEFT-HAND WHEEL CONTROL INOPERATIVE
APRON AND LEFT-HAND WHEEL CONTROL INOPERATIVE - Continued
APRON AND LEFT-HAND WHEEL CONTROL INOPERATIVE - Continued
APRON AND LEFT-HAND WHEEL CONTROL INOPERATIVE - Continued
APRON AND LEFT-HAND WHEEL CONTROL INOPERATIVE - Continued
APRON AND LEFT-HAND WHEEL CONTROL INOPERATIVE - Continued
TROUBLESHOOTING PROCEDURES - APRON WILL NOT RAISE
APRON WILL NOT RAISE - Continued
APRON WILL NOT RAISE - Continued
APRON WILL NOT RAISE - Continued
APRON WILL NOT RAISE - Continued
APRON WILL NOT RAISE - Continued
Figure 5. Apron Control Pressure Relief Valve.
APRON WILL NOT RAISE - Continued
Figure 8. Apron Cylinders Operation Check.
APRON WILL NOT RAISE - Continued
Figure 9. Apron Cylinders Oil Flow Test.
Figure 10. Apron Cylinders Leakage Test.
APRON WILL NOT RAISE - Continued
TROUBLESHOOTING PROCEDURES - BUMP STOPS INOPERATIVE
Figure 1. Left Front Bump Stop.
TROUBLESHOOTING PROCEDURES - BUMP STOPS INOPERATIVE - Continued
TROUBLESHOOTING PROCEDURES - BUMP STOPS INOPERATIVE - Continued
TROUBLESHOOTING PROCEDURES - BUMP STOPS INOPERATIVE - Continued
TROUBLESHOOTING PROCEDURES - BUMP STOPS INOPERATIVE - Continued
TROUBLESHOOTING PROCEDURES - BUMP STOPS INOPERATIVE - Continued
TROUBLESHOOTING PROCEDURES - BUMP STOPS INOPERATIVE - Continued
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TROUBLESHOOTING PROCEDURES - EJECTOR CREEPS
Figure 1. Ejector Control Valve Linkage.
EJECTOR CREEPS
EJECTOR CREEPS - Continued
EJECTOR CREEPS - Continued
EJECTOR CREEPS - Continued
EJECTOR CREEPS - Continued
EJECTOR CREEPS - Continued
Figure 9. Ejector Relief Valve Adjustment.
EJECTOR CREEPS - Continued
EJECTOR CREEPS - Continued
TROUBLESHOOTING PROCEDURES - EJECTOR DOES NOT EXTEND OR RETRACT
EJECTOR DOES NOT EXTEND OR RETRACT
Figure 1. Ejector.
Figure 3. Suction Strainer.
EJECTOR DOES NOT EXTEND OR RETRACT - Continued
EJECTOR DOES NOT EXTEND OR RETRACT - Continued
EJECTOR DOES NOT EXTEND OR RETRACT - Continued
EJECTOR DOES NOT EXTEND OR RETRACT - Continued
Figure 9. Main Relief Valve 13L and 13R.
EJECTOR DOES NOT EXTEND OR RETRACT - Continued
EJECTOR DOES NOT EXTEND OR RETRACT - Continued
Figure 12. Suction Tubes and Hoses.
EJECTOR DOES NOT EXTEND OR RETRACT - Continued
Figure 14. Ejector Control.
EJECTOR DOES NOT EXTEND OR RETRACT - Continued
EJECTOR DOES NOT EXTEND OR RETRACT - Continued
EJECTOR DOES NOT EXTEND OR RETRACT - Continued
EJECTOR DOES NOT EXTEND OR RETRACT - Continued
Figure 20. Ejector Control Valve.
EJECTOR DOES NOT EXTEND OR RETRACT - Continued
EJECTOR DOES NOT EXTEND OR RETRACT - Continued
EJECTOR DOES NOT EXTEND OR RETRACT - Continued
EJECTOR DOES NOT EXTEND OR RETRACT - Continued
TROUBLESHOOTING PROCEDURES - FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
Figure 2. Control Valve Linkage.
Figure 3. SPRUNG/UNSPRUNG Control Valve Linkage.
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
Figure 10. Circuit 3 Components, Hoses and Lines.
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
Figure 12. Circuit 11 Components, Hoses and Lines.
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
Figure 14. Main Pump Suction Hose Blockage Test.
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
Figure 17. Main Relief Valve.
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
TROUBLESHOOTING PROCEDURES - FRONT CORNER (LEFT OR RIGHT) RAISES IN UNSPRUNG, BUT NOT SPRUNG MODE
FRONT CORNER (LEFT OR RIGHT) RAISES IN UNSPRUNG, BUT NOT SPRUNG MODE
FRONT CORNER (LEFT OR RIGHT) RAISES IN UNSPRUNG, BUT NOT SPRUNG MODE - Continued
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Figure 2. No. 1 Right Actuator.
FRONT CORNER (LEFT OR RIGHT) RAISES IN UNSPRUNG, BUT NOT SPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN UNSPRUNG, BUT NOT SPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN UNSPRUNG, BUT NOT SPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN UNSPRUNG, BUT NOT SPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN UNSPRUNG, BUT NOT SPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN UNSPRUNG, BUT NOT SPRUNG MODE - Continued
Figure 8. Manifold Inlet/Outlet Port 9.
TROUBLESHOOTING PROCEDURES - FRONT CORNER (LEFT OR RIGHT) DOES NOT RAISE IN SPRUNG
FRONT CORNER (LEFT OR RIGHT) DOES NOT RAISE IN SPRUNG OR UNSPRUNG MODE
Figure 2. No. 1 Right Actuator Depicted.
FRONT CORNER (LEFT OR RIGHT) DOES NOT RAISE IN SPRUNG OR UNSPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) DOES NOT RAISE IN SPRUNG OR UNSPRUNG MODE - Continued
TROUBLESHOOTING PROCEDURES - HYDRAULIC OIL OVERHEATS
HYDRAULIC OIL OVERHEATS
HYDRAULIC OIL OVERHEATS - Continued
Figure 3. Manifold Hoses.
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
Figure 4. Compensating Pump.
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
Figure 9. Suspension Relief Valve.
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
Figure 15. Main Pump Relief Valves.
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
Figure 20. Suspension Relief Valve Port 3L and Port 3R.
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
Figure 25. Ejector Relief Valve.
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
Figure 29. Apron Relief Valve.
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
Figure 32. Apron Control Valve.
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
Figure 33. Apron Cylinder Leakage Test.
Figure 33. Apron Cylinder Leakage Test.
Figure 34. Main Hydraulic Accumulator.
HYDRAULIC OIL OVERHEATS - Continued
Figure 36. Main Accumulator Charging.
HYDRAULIC OIL OVERHEATS - Continued
Figure 37. Compensating Pump.
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
Figure 44. Suspension Raise/Lower Relief Valve 3L and Relief Valve 3R.
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HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
Figure 47. Actuator Accumulator Pressure Test.
Figure 48. Actuator Accumulator Pressure Test.
Figure 49. Actuator Accumulator Charging.
HYDRAULIC OIL OVERHEATS - Continued
TROUBLESHOOTING PROCEDURES - LEFT REAR CORNER DOES NOT RAISE IN SPRUNG OR UNSPRUNG
LEFT REAR CORNER DOES NOT RAISE IN SPRUNG OR UNSPRUNG MODE
Figure 1. No. 4 Left Actuator.
LEFT REAR CORNER DOES NOT RAISE IN SPRUNG OR UNSPRUNG MODE - Continued
Figure 4. No. 3 Left Actuator.
LEFT REAR CORNER DOES NOT RAISE IN SPRUNG OR UNSPRUNG MODE - Continued
TROUBLESHOOTING PROCEDURES - REAR OF VEHICLE RAISES IN SPRUNG, BUT NOT UNSPRUNG
REAR OF VEHICLE RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
Figure 1. No. 4 Left Actuator Port 8 Check Valve.
REAR OF VEHICLE RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
REAR OF VEHICLE RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
REAR OF VEHICLE RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
Figure 4. SPRUNG/UNSPRUNG Control Valve Linkage.
REAR OF VEHICLE RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
REAR OF VEHICLE RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
REAR OF VEHICLE RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
REAR OF VEHICLE RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
TROUBLESHOOTING PROCEDURES - VEHICLE DOES NOT RESPOND TO OPERATOR CONTROLS
Figure 1. High-Pressure Filter Inlet Port 13R.
Figure 3. Main Hydraulic Pump Suction Hose.
VEHICLE DOES NOT RESPOND TO OPERATOR CONTROLS - Continued
VEHICLE DOES NOT RESPOND TO OPERATOR CONTROLS - Continued
Figure 6. Hydraulic System Sample Control Valve.
VEHICLE DOES NOT RESPOND TO OPERATOR CONTROLS - Continued
VEHICLE DOES NOT RESPOND TO OPERATOR CONTROLS - Continued
VEHICLE DOES NOT RESPOND TO OPERATOR CONTROLS - Continued
VEHICLE DOES NOT RESPOND TO OPERATOR CONTROLS - Continued
VEHICLE DOES NOT RESPOND TO OPERATOR CONTROLS - Continued
VEHICLE DOES NOT RESPOND TO OPERATOR CONTROLS - Continued
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GENERAL INFORMATION
LIST OF ABBREVIATIONS/ACRONYMS
SAFETY, CARE, AND HANDLING
EQUIPMENT DESCRIPTION AND DATA
Figure 1. Hydraulic Diagnostic Center (HDC) Control Box.
EQUIPMENT CHARACTERISTICS, CAPABILITIES, AND FEATURES
Figure 2. Hydraulic Diagnostic Center (HDC) Control Box Locator.
Figure 3. M9 ACE Hydraulic System Major Components.
LOCATION AND DESCRIPTION OF MAJOR COMPONENTS
EQUIPMENT DATA
THEORY OF OPERATION
Figure 1. Main Hydraulic Accumulator.
Figure 2. Bowl Area Major Components.
Figure 3. Hydraulic Suspension Components.
Hydraulic Control Valve Operation
Right Suspension Control Valve (3R/17R)
Figure 4. DCV Bank.
CHAPTER 2 TROUBLESHOOTING PROCEDURES
INTRODUCTION TO USING THE HYDRAULIC DIAGNOSTIC CENTER (HDC) SYSTEM TO TROUBLESHOOT THE M9 ACE HYDRAULIC SYSTEM
GENERAL HYDRAULIC SYSTEM TROUBLESHOOTING PROCEDURES
SUSPENDING THE M9 ACE FOR SUSPENSION SYSTEM CHECKS
Figure 1. Hydraulic Diagnostic Center (HDC) Control Box Installation.
Figure 2. Wiring Harness W4 (Umbilical Cable W4) Installation.
HDC CONTROL BOX INSTALLATION
Figure 4. Wiring Harness W4 (Umbilical Cable W4) Removal.
HDC CONTROL BOX INSTALLATION - Continued
Figure 6. Stowage of Hydraulic Diagnostic Center (HDC) Control Box.
TROUBLESHOOTING INDEX
TROUBLESHOOTING PROCEDURES - ALL HYDRAULIC FUNCTIONS INOPERATIVE
Figure 1. Hydraulic Return Line Filter.
Figure 2. Main Pump.
Figure 3. Hydraulic Diagnostic Center (HDC) Control Box.
Figure 4. Directional Control Valve (DCV) Bank.
ALL HYDRAULIC FUNCTIONS INOPERATIVE
Figure 6. Directional Control Valve (DCV) Bank.
Figure 7. Main Pump Relief Valve 13R.
ALL HYDRAULIC FUNCTIONS INOPERATIVE - Continued
ALL HYDRAULIC FUNCTIONS INOPERATIVE - Continued
ALL HYDRAULIC FUNCTIONS INOPERATIVE - Continued
ALL HYDRAULIC FUNCTIONS INOPERATIVE - Continued
Figure 13. Main Pump Relief Valve 13L.
ALL HYDRAULIC FUNCTIONS INOPERATIVE - Continued
ALL HYDRAULIC FUNCTIONS INOPERATIVE - Continued
ALL HYDRAULIC FUNCTIONS INOPERATIVE - Continued
ALL HYDRAULIC FUNCTIONS INOPERATIVE - Continued
ALL HYDRAULIC FUNCTIONS INOPERATIVE - Continued
TROUBLESHOOTING PROCEDURES - APRON AND LEFT-HAND WHEEL CONTROL INOPERATIVE
APRON AND LEFT-HAND WHEEL CONTROL INOPERATIVE
APRON AND LEFT-HAND WHEEL CONTROL INOPERATIVE - Continued
APRON AND LEFT-HAND WHEEL CONTROL INOPERATIVE - Continued
APRON AND LEFT-HAND WHEEL CONTROL INOPERATIVE - Continued
APRON AND LEFT-HAND WHEEL CONTROL INOPERATIVE - Continued
APRON AND LEFT-HAND WHEEL CONTROL INOPERATIVE - Continued
TROUBLESHOOTING PROCEDURES - APRON WILL NOT RAISE
APRON WILL NOT RAISE - Continued
APRON WILL NOT RAISE - Continued
APRON WILL NOT RAISE - Continued
APRON WILL NOT RAISE - Continued
APRON WILL NOT RAISE - Continued
Figure 5. Apron Control Pressure Relief Valve.
APRON WILL NOT RAISE - Continued
Figure 8. Apron Cylinders Operation Check.
APRON WILL NOT RAISE - Continued
Figure 9. Apron Cylinders Oil Flow Test.
Figure 10. Apron Cylinders Leakage Test.
APRON WILL NOT RAISE - Continued
TROUBLESHOOTING PROCEDURES - BUMP STOPS INOPERATIVE
Figure 1. Left Front Bump Stop.
TROUBLESHOOTING PROCEDURES - BUMP STOPS INOPERATIVE - Continued
TROUBLESHOOTING PROCEDURES - BUMP STOPS INOPERATIVE - Continued
TROUBLESHOOTING PROCEDURES - BUMP STOPS INOPERATIVE - Continued
TROUBLESHOOTING PROCEDURES - BUMP STOPS INOPERATIVE - Continued
TROUBLESHOOTING PROCEDURES - BUMP STOPS INOPERATIVE - Continued
TROUBLESHOOTING PROCEDURES - BUMP STOPS INOPERATIVE - Continued
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TROUBLESHOOTING PROCEDURES - EJECTOR CREEPS
Figure 1. Ejector Control Valve Linkage.
EJECTOR CREEPS
EJECTOR CREEPS - Continued
EJECTOR CREEPS - Continued
EJECTOR CREEPS - Continued
EJECTOR CREEPS - Continued
EJECTOR CREEPS - Continued
Figure 9. Ejector Relief Valve Adjustment.
EJECTOR CREEPS - Continued
EJECTOR CREEPS - Continued
TROUBLESHOOTING PROCEDURES - EJECTOR DOES NOT EXTEND OR RETRACT
EJECTOR DOES NOT EXTEND OR RETRACT
Figure 1. Ejector.
Figure 3. Suction Strainer.
EJECTOR DOES NOT EXTEND OR RETRACT - Continued
EJECTOR DOES NOT EXTEND OR RETRACT - Continued
EJECTOR DOES NOT EXTEND OR RETRACT - Continued
EJECTOR DOES NOT EXTEND OR RETRACT - Continued
Figure 9. Main Relief Valve 13L and 13R.
EJECTOR DOES NOT EXTEND OR RETRACT - Continued
EJECTOR DOES NOT EXTEND OR RETRACT - Continued
Figure 12. Suction Tubes and Hoses.
EJECTOR DOES NOT EXTEND OR RETRACT - Continued
Figure 14. Ejector Control.
EJECTOR DOES NOT EXTEND OR RETRACT - Continued
EJECTOR DOES NOT EXTEND OR RETRACT - Continued
EJECTOR DOES NOT EXTEND OR RETRACT - Continued
EJECTOR DOES NOT EXTEND OR RETRACT - Continued
Figure 20. Ejector Control Valve.
EJECTOR DOES NOT EXTEND OR RETRACT - Continued
EJECTOR DOES NOT EXTEND OR RETRACT - Continued
EJECTOR DOES NOT EXTEND OR RETRACT - Continued
EJECTOR DOES NOT EXTEND OR RETRACT - Continued
TROUBLESHOOTING PROCEDURES - FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
Figure 2. Control Valve Linkage.
Figure 3. SPRUNG/UNSPRUNG Control Valve Linkage.
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
Figure 10. Circuit 3 Components, Hoses and Lines.
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
Figure 12. Circuit 11 Components, Hoses and Lines.
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
Figure 14. Main Pump Suction Hose Blockage Test.
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
Figure 17. Main Relief Valve.
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
TROUBLESHOOTING PROCEDURES - FRONT CORNER (LEFT OR RIGHT) RAISES IN UNSPRUNG, BUT NOT SPRUNG MODE
FRONT CORNER (LEFT OR RIGHT) RAISES IN UNSPRUNG, BUT NOT SPRUNG MODE
FRONT CORNER (LEFT OR RIGHT) RAISES IN UNSPRUNG, BUT NOT SPRUNG MODE - Continued
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Figure 2. No. 1 Right Actuator.
FRONT CORNER (LEFT OR RIGHT) RAISES IN UNSPRUNG, BUT NOT SPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN UNSPRUNG, BUT NOT SPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN UNSPRUNG, BUT NOT SPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN UNSPRUNG, BUT NOT SPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN UNSPRUNG, BUT NOT SPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) RAISES IN UNSPRUNG, BUT NOT SPRUNG MODE - Continued
Figure 8. Manifold Inlet/Outlet Port 9.
TROUBLESHOOTING PROCEDURES - FRONT CORNER (LEFT OR RIGHT) DOES NOT RAISE IN SPRUNG
FRONT CORNER (LEFT OR RIGHT) DOES NOT RAISE IN SPRUNG OR UNSPRUNG MODE
Figure 2. No. 1 Right Actuator Depicted.
FRONT CORNER (LEFT OR RIGHT) DOES NOT RAISE IN SPRUNG OR UNSPRUNG MODE - Continued
FRONT CORNER (LEFT OR RIGHT) DOES NOT RAISE IN SPRUNG OR UNSPRUNG MODE - Continued
TROUBLESHOOTING PROCEDURES - HYDRAULIC OIL OVERHEATS
HYDRAULIC OIL OVERHEATS
HYDRAULIC OIL OVERHEATS - Continued
Figure 3. Manifold Hoses.
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
Figure 4. Compensating Pump.
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
Figure 9. Suspension Relief Valve.
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
Figure 15. Main Pump Relief Valves.
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
Figure 20. Suspension Relief Valve Port 3L and Port 3R.
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
Figure 25. Ejector Relief Valve.
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
Figure 29. Apron Relief Valve.
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
Figure 32. Apron Control Valve.
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
Figure 33. Apron Cylinder Leakage Test.
Figure 33. Apron Cylinder Leakage Test.
Figure 34. Main Hydraulic Accumulator.
HYDRAULIC OIL OVERHEATS - Continued
Figure 36. Main Accumulator Charging.
HYDRAULIC OIL OVERHEATS - Continued
Figure 37. Compensating Pump.
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
Figure 44. Suspension Raise/Lower Relief Valve 3L and Relief Valve 3R.
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HYDRAULIC OIL OVERHEATS - Continued
HYDRAULIC OIL OVERHEATS - Continued
Figure 47. Actuator Accumulator Pressure Test.
Figure 48. Actuator Accumulator Pressure Test.
Figure 49. Actuator Accumulator Charging.
HYDRAULIC OIL OVERHEATS - Continued
TROUBLESHOOTING PROCEDURES - LEFT REAR CORNER DOES NOT RAISE IN SPRUNG OR UNSPRUNG
LEFT REAR CORNER DOES NOT RAISE IN SPRUNG OR UNSPRUNG MODE
Figure 1. No. 4 Left Actuator.
LEFT REAR CORNER DOES NOT RAISE IN SPRUNG OR UNSPRUNG MODE - Continued
Figure 4. No. 3 Left Actuator.
LEFT REAR CORNER DOES NOT RAISE IN SPRUNG OR UNSPRUNG MODE - Continued
TROUBLESHOOTING PROCEDURES - REAR OF VEHICLE RAISES IN SPRUNG, BUT NOT UNSPRUNG
REAR OF VEHICLE RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
Figure 1. No. 4 Left Actuator Port 8 Check Valve.
REAR OF VEHICLE RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
REAR OF VEHICLE RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
REAR OF VEHICLE RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
Figure 4. SPRUNG/UNSPRUNG Control Valve Linkage.
REAR OF VEHICLE RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
REAR OF VEHICLE RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
REAR OF VEHICLE RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
REAR OF VEHICLE RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE - Continued
TROUBLESHOOTING PROCEDURES - VEHICLE DOES NOT RESPOND TO OPERATOR CONTROLS
Figure 1. High-Pressure Filter Inlet Port 13R.
Figure 3. Main Hydraulic Pump Suction Hose.
VEHICLE DOES NOT RESPOND TO OPERATOR CONTROLS - Continued
VEHICLE DOES NOT RESPOND TO OPERATOR CONTROLS - Continued
Figure 6. Hydraulic System Sample Control Valve.
VEHICLE DOES NOT RESPOND TO OPERATOR CONTROLS - Continued
VEHICLE DOES NOT RESPOND TO OPERATOR CONTROLS - Continued
VEHICLE DOES NOT RESPOND TO OPERATOR CONTROLS - Continued
VEHICLE DOES NOT RESPOND TO OPERATOR CONTROLS - Continued
VEHICLE DOES NOT RESPOND TO OPERATOR CONTROLS - Continued
VEHICLE DOES NOT RESPOND TO OPERATOR CONTROLS - Continued
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