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TM 9-2320-364-20-3
2-2530
2. HOIST WILL NOT LOWER USING REMOTE CONTROL UNIT (CONT).
2.
Repair wire(s) 2, 8, 15
or 16 (see schematic
Fig 2-58) or notify
DS Maintenance.
Verify repair, go to
Step 9 of this Fault.
YES
NO
Hoist operates using manual
control lever mounted on
crane.
At least one other remote
function operates.
Remote control unit harness
faulty.
Controller switch faulty.
Controller circuit card faulty.
Remote control unit cable faulty.
Wire from truck remote control
connector outlet to terminal 16
faulty.
Wire from terminal 16 to
solenoid faulty.
Solenoid black wire faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Continuity test.
STE/ICE-R #91.
If wire is loose, faulty, or shorted
to ground, 22 to 28 vdc will not
be present at crane junction
box.
WARNING
Is conti-
nuity meas-
ured between
terminals H, B,
F, and G and wires 8, 2, 15, and
16 from remote control unit
hookup to four terminal
connector with EMERGENCY
STOP switch turned ON?
Read WARNING
on Page 2-2531
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