TM-9-2350-238-34-1
HULL AND RELATED COMPONENTS, RECOVERY VEHICLE, FULL TRACKED: LIGHT, ARMORED, M578
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
MARCH 1994
TM-9-2350-238-34-1 - Page 28 of 292
TM 9-2350-238-34-1
2-4. TROUBLESHOOTING INFORMATION (CONT) .
Table 2-1. DIRECT SUPPORT TROUBLESHOOTING (CONT )
MALFUNCTIO N
TEST OR INSPECTIO N
CORRECTIVE ACTIO N
HYDRAULIC SUSPENSION LOCKOUT CYLINDER ASSEMBL Y
19. HYDRAULIC SUSPENSION LOCKOUT CYLINDER ASSEMBLY DOES NOT ACTUATE .
Step 1.
Check for low hydraulic pressure near pump and slip ring using pressur e
gage. Start engine and set HYD PUMP/PTO CLUTCH switch ON .
a. If pressure gage indicates about 450 psi, go to step 7.
b. If pressure gage indicates less than 450 psi, go to step 2. Set
HYD PUMP/PTO CLUTCH switch OFF. Stop engine. Remov e
pressure gage .
Step 2.
Check for open impact wrench manual shut-off valve .
If open, close impact wrench manual shut-off valve.
Step 3.
Check for damaged or faulty impact wrench manual shut-off valve .
If damaged or faulty, replace impact wrench manual shut-off valve.
Refer to TM 9-2350-238-20-1 .
Step
4.
Check for damaged or faulty impact wrench control check valve .
If damaged or faulty, replace impact wrench control check valve.
Refer to TM 9-2350-238-20-1 .
Step 5. Check for damaged or faulty hull hydraulic relief valve.
If damaged or faulty, replace hull hydraulic relief valve. Refer to TM
9-2350-238-20-1 .
Step 6. If problem still exists, notify general support maintenance .
Step 7. Install pressure gage to lockout cylinder manifold test port. Start engine an d
set HYD PUMP/PTO CLUTCH switch ON .
If pressure gage indicates a minimum of 450 psi, replace lockout
pressure reducing valve. Refer to TM 9-2350-238-20-1. Set HYD
PUMP/PTO CLUTCH switch OFF. Stop engine. Remove pressur e
gage .
2-1 6
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