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TM 9-2320-364-20-3
2-2748
11 LOSS OF CRANE FUNCTIONS (SWING, TELESCOPE, BOOM AND HOIST) (CONT).
WINCH/CRANE switch in
CRANE position.
Main hydraulic reservoir full.
Outriggers operate.
Outriggers down with weight off
truck suspension.
Crane tubes and hoses OK.
Accumulator and tube OK.
Hose 2776 OK.
White jumper wire from terminal
19 to 20 OK.
Outrigger proximity switch (RH)
OK.
Outrigger proximity switch (LH)
OK.
Red wire from terminal 5 to
control lockout relay OK.
Black wire from crane terminal 1
to control lockout relay OK.
Green wire from control lockout
relay to black wire OK.
Control lockout relay OK.
Blue wire from control lockout
relay to crane terminal 8 OK.
Crane system hydraulic
pressure valve harness
connector white wire OK.
Crane system hydraulic
pressure valve harness
connector black wire OK.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Verify repair.
NO
Fault not corrected.
Notify DS
Maintenance.
15.
Does crane operate normally?
Fault corrected.
If crane operates normally, fault
has been corrected.
YES
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