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TM 9-2320-364-20-3
2-2566
4. BOOM WILL NOT LOWER USING REMOTE CONTROL UNIT (CONT).
2.
Repair wire(s) 2, 8, 13
or 14 (see schematic
Fig 2-58) or notify
DS Maintenance.
Verify repair, go to
Step 9 of this Fault.
YES
NO
Boom operates using manual
control.
At least one other remote
function operates.
Remote control unit harness
faulty.
Controller switch faulty.
Controller circuit card faulty.
Remote control unit cable
faulty.
Brown Wire from truck remote
control connector outlet to
terminal 14 faulty.
White wire from terminal 14 to
solenoid faulty.
Solenoid black wire faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Continuity test.
STE/ICE-R #91.
If there is no continuity, wire
between terminals is faulty.
Is continu-
ity meas-
ured between
terminals H, B, N, and M and
wires 8, 2, 13, and 14 from
remote control unit hookup to
four terminal connector with
EMERGENCY STOP switch
turned ON?
WARNING
Read WARNING
on Page 2-2567
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