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TM 9-2320-364-20-3
2-2934
18.
Is throttle position switch
adjusted correctly?
Adjust throttle position
switch (Para 7-59).
Verify repair, go to
Step 19 of this Fault.
YES
NO
Heater blower motor operates,
indicating CB15 OK.
Wire 1956 OK.
Fan operates at low speed
with hydraulic selector switch
in AUTO or CRANE/SRW
position.
Fan speed does not lower with
throttle position switch
depressed.
Throttle position switch faulty
or out of adjustment.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Visual inspection.
If throttle position switch is not
adjusted correctly, switch
connector terminals A and B
will not have continuity.
Replace throttle
position switch
(Para 7-59).
Verify repair, go to
Step 19 of this Fault.
6. FAN SPEED DOES NOT LOWER FROM HIGH SPEED TO LOW SPEED (CONT).
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