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TM 9-2320-364-20-4
2-3150
3. LHS DOES NOT UNLOAD IN CHU MODE.
INITIAL SETUP
1.
START
YES
NO
Rear container locks are not
installed.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
2-38. CHU TROUBLESHOOTING (CONT)
Tools and Special Tools
Tool Kit, General Mechanic’s: Automotive
(Item 74, Appendix G)
Multimeter (Item 44, Appendix G)
Equipment Condition
Engine OFF, (TM 9-2320-364-10)
Parking brake applied, (TM 9-2320-364-10)
Wheels chocked, (TM 9-2320-364-10)
WARNING
Read WARNING
on Page 2-3151
Are circuits open at rear lock
limit switches?
Replace rear lock limit
switch (Para 21-26).
Verify repair, go to
Step 7 of this Fault.
Continuity test.
Rear lock limit switches control
interlock function which prohibits
unload function when container
locks are installed. If switch has
continuity with lock removed,
LHS will not unload.
Rear lock limit switch faulty.
Wires 1495 and/or 1496 shorted
to connector MC190.
Wire 1464 open.
Relay R51 faulty.
Wire 1464 from connector
MC82B to relay R51 open.
Wire 1496 from connector MC185
to connector MC190 faulty.
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