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TM 9-2320-364-20-3
2-2520
1. NO CRANE FUNCTIONS WORK USING REMOTE CONTROL (CONT).
All crane functions operate
using controls mounted on
crane.
Violet wire from terminal 8 to
remote control connector outlet
terminal H OK.
Green wire from remote control
connector, terminal B to crane
junction box ground faulty.
Remote control unit cable faulty.
Remote control unit wire 4
faulty.
ON/OFF EMERGENCY STOP
switch faulty.
Remote control unit wire 8 from
ON/OFF switch to four terminal
connector faulty.
Remote control unit wire 2
faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Continuity test.
STE/ICE-R #91.
If terminal H wire is loose, faulty
or shorted, 22 to 28 vdc will not
be input to remote control unit.
If terminal B wire is loose, faulty
or shorted, remote control unit
will not be grounded.
YES
NO
Replace cable.
Verify repair, go to
Step 8 of this Fault.
3.
2.
Repair green wire
(see schematic
Fig 2-58) or notify
DS Maintenance.
Verify repair, go to
Step 8 of this Fault.
YES
NO
All crane functions operate
using controls mounted on
crane.
Violet wire from terminal 8 to
remote control connector outlet
terminal H OK.
Green wire from remote control
connector, terminal B to crane
junction box ground faulty.
Remote control unit cable faulty.
Remote control unit wire 4
faulty.
ON/OFF EMERGENCY STOP
switch faulty.
Remote control unit wire 8 from
ON/OFF switch to four terminal
connector faulty.
Remote control unit wire 2
faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Continuity test.
STE/ICE-R #91.
If green ground wire from truck
hookup to crane junction box
ground terminal faulty, remote
control unit will not be grounded.
WARNING
WARNING
Is continuity measured
between remote control
connector (truck RH or LH)
terminal B and ground?
Is continuity measured from
terminals H and B on one
connector to terminals H and
B on other connector?
Read WARNING
on Page 2-2521
Read WARNING
on Page 2-2521
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