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Malfunction
Test or Inspection
Corrective Action
TM 9-2320-304-14&P
4-64
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).
Step 3. Check for 22 to 28 Vdc at main junction box terminal 9 with ENGINE switch in the ON
position.
If Vdc measurement is below specification, go to Step 1. of Fault 6 .
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 assembly. Failure to comply will damage the wire connections.
Step 4. Check for continuity at main frame safe lowering button wire connection points with button
pushed in.
If there is no continuity, replace main frame safe lowering button.
Step 5. Check for 22 to 28 Vdc on wire 1479 at main frame safe lowering button with ENGINE
switch in the ON position.
If Vdc measurement is below specification, turn ENGINE switch to OFF position
and repair wire 1479 or notify DS Maintenance.
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