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TM 9-2320-364-20-3
2-2794
19. CRANE HIGH IDLE NOT WORKING (CONT).
11.
Is there continuity on relay
R22 between terminal 30 and
terminal 87?
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 OK.
Blue wire from relay to
diode OK.
Diode OK.
Red wire from diode to HIGH
IDLE switch OK.
Green jumper wire on HIGH
IDLE switch OK.
HIGH IDLE switch OK.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Continuity test.
STE/ICE-R#91.
If there is continuity, relay is
receiving 22 to 28 VDC from
crane but DDEC circuit
component is faulty.
WARNING
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.
Go to DDEC II
troubleshooting,
Fault D4.
Go to Step 12 of this
Fault.
Read WARNING
on Page 2-2795
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