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TM 9-2320-364-20-4
2-3188
5. HOOK ARM EXTENDS TOO FAR IN CHU MODE (AUTO) (CONT).
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
NO
7.
WARNING
Read WARNING
on Page 2-3189
Continuity test.
Relay R52 will not function if
there is an open in ground circuit
(wire 1435).
YES
Is continuity present between
wire 1435 at connector
MC82A, terminal K and relay
R52, terminal 85?
CHU jumper wire harness OK.
LHS operates in MAN HA
position.
LHS operates in MAN MF
position.
Proximity switch properly
adjusted.
LED of proximity switch
illuminates.
Wire 1466B of wire harness OK.
Wire 1466B OK.
Proximity switch OK
Wire 1465 OK.
Wire 1435 is faulty.
Wire 1495 is faulty.
Wire 1496 is faulty.
Relay R52 faulty.
Relay R51 faulty.
Wire 1474 of wire harness is
faulty.
Wire 1474 is faulty.
Wire 1472 is faulty.
Wire 1435 of wire harness is
faulty.
Wire 1435 is faulty.
Repair wire 1435
(see schematic
Fig 2-79) or notify DS
Maintenance. Verify
repair, go to Step 17 of
this Fault.
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