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TM 9-2320-364-20-3
2-2782
19. CRANE HIGH IDLE NOT WORKING (CONT).
5.
Are 22 to 28 VDC measured
on throttle relay blue wire?
Notify DS
Maintenance.
YES
NO
Crane operates.
Red wire from terminal 17 to
relay OK.
Green wire from relay to
ground OK.
Black wire from terminal 3 to
relay OK.
Relay faulty.
Blue wire from relay to diode
faulty.
Diode faulty.
Red wire from diode to HIGH
IDLE switch faulty.
Green jumper wire on HIGH
IDLE switch faulty.
HIGH IDLE switch faulty.
Wire 231 faulty.
Relay R22 faulty.
Black wire from power switch to
HIGH IDLE switch faulty.
HIGH IDLE switch faulty.
Green wire from HIGH IDLE
switch to terminal 17 faulty.
White wire from terminal 17 to
crane connector faulty.
Wire 1737 faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Voltage test.
STE/ICE-R #89.
If throttle relay is faulty, 22 to
28 VDC will not be measured.
WARNING
Read WARNING
on Page 2-2783
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