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Malfunction
Test or Inspection
Corrective Action
TM 9-2320-304-14&P
5-8
Direct Support and General Support Maintenance (Cont)
5-7. DIRECT/GENERAL SUPPORT TROUBLESHOOTING PROCEDURES (CONT).
Table 5-2. Direct Support/General Support Troubleshooting (CONT)
LOAD HANDLING SYSTEM (LHS)
1. LOSS OF HOOK ARM SAFE LOWERING (CONT).
WARNING
Do not get under LHS when disconnecting or connecting connectors and hoses. A hydraulic
malfunction could cause LHS to lower causing serious injury or death.
NOTE
Both hook arm manifold safe lowering solenoid valves are tested the same way. Both hook
arm manifold safe lowering solenoid valves must be tested. Right side is shown.
Step 5. Remove safe lowering solenoid valve from port VB on RH hook arm manifold. Push poppet
into valve toward solenoid coil.
If poppet does not move, replace safe lowering solenoid valve (Para 5-36).
Step 6. With engine switch ON, push hook arm safe lowering button, and check for proper
electrical operation of the safe lowering solenoid valve in port VB on RH hook arm
manifold.
If poppet does not move, replace safe lowering solenoid valve (Para 5-36) and go to
Step 7. of this Fault.
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