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Page Title:
CAB BLOWER DOES NOT OPERATE - continued |
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 TM 10-3930-673-20-1
VOLTAGE TEST
ORANGE
W
IRE
(1) Set multimeter to volts dc.
LT BLUE
W
(2) Connect multimeter positive lead (+) to
IRE
fan blower motor connector J1 where
YELLOW
W
high (orange wire), medium (light blue
IRE
wire), low (yellow wire) connects.
(3) Connect multimeter negative lead () to
known good ground.
(4) Turn engine start switch to ON position,
BUT DO NOT START ENGINE
(TM 10-3930-673-10).
(5) Turn heater/air conditioner switch to
Heat (TM 10-3930-673-10)
(6) Cycle through all the fan speeds, High,
Medium, Low (TM 10-3930-673-10).
(a) If voltage is present, replace fan
motor (Para 17-10).
(b) If voltage is not present, notify
Direct Support to replace fan
resistor pack.
(7) Turn heater/air conditioner switch OFF
(TM 10-3930-673-10).
(8) Turn engine start switch to OFF
RESIPTOR
S
position (TM 10-3930-673-10).
ACK
(9) Install seat (Para 16-12).
TR01117
2-467
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