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TM 9-2320-364-20-3
2-2690
10. OUTRIGGERS DO NOT OPERATE (CONT).
10.
Power switch faulty.
Noify DS
Maintenance.
YES
NO
WINCH/CRANE switch in
CRANE position.
Self recovery winch operates.
Hose 2902 OK.
Crane hoses and tubes OK.
Wire 1738 OK.
White wire from truck connector
MC29 to rectifier OK.
Rectifier OK.
White wire from rectifier to
POWER switch OK.
POWER switch faulty.
Black wire from POWER
switch to OSS faulty.
OSS faulty.
Red wire from OSS to crane
junction box, terminal 19 faulty.
Outrigger/mast shutdown valve
harness connector white wire
faulty.
Outrigger/mast shutdown valve
harness connector black wire
faulty.
WINCH/CRANE switch faulty.
Wire 1731 faulty.
Black wire from truck connector
MC29 to system shutdown
relay faulty.
System shutdown relay faulty.
White wire from system
shutdown relay to crane
junction box, terminal 3 faulty.
Main hydraulic pressure valve
harness connector white wire
faulty.
Main hydraulic pressure valve
harness connector black wire
faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Voltage test.
STE/ICE-R #89.
If switch is faulty, 22 to 28 vdc
will not be input to
outrigger/mast shutdown valve
solenoid.
WARNING
Are 22 to 28 vdc measured at
crane POWER switch black
wire with ENGINE switch ON
and crane POWER switch
ON?
Read WARNING
on Page 2-2691
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