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TM 9-2320-364-20-4
2-3180
5. HOOK ARM EXTENDS TOO FAR IN CHU MODE (AUTO) (CONT).
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
NO
3.
WARNING
Read WARNING
on Page 2-3181
Voltage test.
If 22 to 28 vdc is not present,
either the proximity switch is
faulty or there is an open in wire
1466B from the proximity switch.
YES
Are 22 to 28 vdc measured on
wire 1466B at relay R50, posi-
tion 87?
Go to Step 4 of this
Fault.
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.
Go to Step 6 of this
Fault.
Wire 1466B of wire harness is
faulty.
Wire 1466B is faulty.
Proximity switch is faulty.
Wire 1465 is faulty.
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.
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