TM-5-2350-378-23-P
ARMORED COMBAT EARTHMOVER (ACE), M9; HYDRAULIC DIAGNOSTIC CENTER
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST
JUNE 2012
TM-5-2350-378-23-P - Page 386 of 644
Table
4.
Possible Symptoms Of Failed HDC System Components - Continued.
HDC SYSTEM
POSSIBLE CONSEQUENCES
Solenoid Valve V6 - Shutoff valve - No. 3 left actuator
SPRUNG MODE:
•
No hydraulic fluid supply (9) to left rear
intermediate actuator 3.
•
Rear left of vehicle partially raised.
•
Left rear of vehicle will bottom out.
•
Possible vehicle damage.
•
Partial suspension shock absorbing capability
on rear left side.
UNSPRUNG MODE:
•
No hydraulic fluid supply (9) to left rear
intermediate actuator 3.
•
Rear left of vehicle will only be partially raised.
Solenoid Valve V7 - Shutoff valve - No. 3 actuator, left
suspension port 2
SPRUNG MODE:
•
No hydraulic fluid supply (9) to left rear
intermediate actuator 3.
•
Rear left of vehicle partially raised.
•
Left rear of vehicle will bottom out.
•
Partial suspension shock absorbing capability
on rear left side.
UNSPRUNG MODE:
•
No hydraulic fluid supply (9) to left rear
intermediate actuator 3.
•
Rear left of vehicle will only be partially raised.
Solenoid Valve V8 - Shutoff valve - No. 4 left actuator
SPRUNG MODE:
•
No hydraulic fluid return (11) from left rear wheel
valve.
•
Wheel valve in unsprung position.
•
No suspension shock absorbing capability on
rear left side.
UNSPRUNG MODE:
•
No hydraulic fluid supply (11) to left rear wheel
valve.
•
Wheel valve in sprung position.
•
Undesired suspension shock absorbing
capability on rear left side.
•
Right rear actuators maintain position or lower.
•
Rear actuators maintain sprung position.
Solenoid Valve V9 - Shutoff valve - Front left bump stop
extend
SPRUNG MODE:
TM 5-2350-378-23&P
0025
0025-28
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