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TM 9-2320-364-20-3
2-2714
10. OUTRIGGERS DO NOT OPERATE (CONT).
22.
Repair white wire (see
schematic Fig 2-58)
or notify DS
Maintenance.
Verify repair, go to
Step 24 of this Fault.
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 OK.
Black wire from POWER
switch to OSS OK.
OSS OK.
Red wire from OSS to crane
junction box, terminal 19 OK.
Outrigger/mast shutdown valve
harness connector white
wire OK.
Outrigger/mast shutdown
valve harness connector
black wire OK.
Outrigger/mast shutdown valve
harness connector black
wire OK.
WINCH/CRANE switch OK.
Wire 1731 OK.
Black wire from truck connector
MC29 to system shutdown
relay OK.
System shutdown relay OK.
White wire from system
shutdown relay to crane
junction box, terminal 3 OK.
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
Continuity test.
STE/ICE-R #91.
If white wire from terminal 3 to
main hydraulic pressure valve is
faulty, 22 to 28 vdc will not be
input to main hydraulic pressure
valve.
WARNING
Is
continuity
measured between main
hydraulic pressure valve
harness connector, terminal 1
and crane junction box,
terminal 3?
Read WARNING
on Page 2-2715
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