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Malfunction
Test or Inspection
Corrective Action
TM 9-2320-304-14&P
4-66
Organizational Maintenance Instructions (Cont)
4-18. TROUBLESHOOTING INSTRUCTIONS (CONT).
Table 4-3. Load Handling System (LHS) Troubleshooting (CONT)
LOAD HANDLING SYSTEM (LHS) (CONT)
9. LOSS OF MAIN FRAME SAFE LOWERING FUNCTION (CONT).
WARNING
Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry or tools contact positive
electrical circuits, a direct short may result. Damage to equipment and injury or death to
personnel may occur.
CAUTION
Do not allow the LHS main junction box cover to hang from console by the wire connections
to the main junction box. Failure to comply will damage the wire connections.
NOTE
Tag and mark all wires prior to disconnecting.
Step 7. Disconnect all wires from rectifier.
Step 8. Set multimeter select switch to diode position.
Step 9. Connect positive (+) multimeter lead at negative terminal.
Step 10. Connect negative (--) multimeter lead at each AC terminal.
If there is not any Vdc present at both AC terminals, replace rectifier (Para 4-40).
If there is any Vdc present at both AC terminals, perform Step 11. and Step 12.
below.
Step 11. Connect negative (--) multimeter lead at positive terminal on rectifier.
Step 12. Connect positive (+) multimeter lead at each AC terminal.
If there is not any Vdc present at both AC terminals, replace rectifier (Para 4-40)
and perform Step 13. below.
If there is any Vdc present, rectifier is OK.
Step 13. Connect wires to rectifier.
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