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TM 9-2350-287-34
10-3. PERSONNEL AIR DUCT VENTILATING FAN REPAIR (continued).
d.
1.
2.
3.
4.
5.
6.
TEST
Use extreme care when working
WARNING
with live circuits. Remove all jewelry prior to
testing. Failure to follow this warning can result in electrical shock and severe injury
or death.
When testing fan rotation, keep hands away from impeller blade. Failure to follow
this warning can result in severe injury.
NOTE
The following steps test clockwise rotation of ventilating fan.
Connect positive lead of 24-vdc power supply to pin B (40) of fan receptacle.
Connect jumper wire from pin A (39) to pin C (45) on fan receptacle.
Connect negative lead of power supply to pin D (38) of fan receptacle.
NOTE
The following steps test counterclockwise rotation of ventilating fan.
Connect positive lead of power supply to pin A (39) of fan receptacle.
Connect jumper wire from pin B (40) to pin C (45) on fan receptacle.
Connect negative lead of power supply to pin D (38) of fan receptacle.
FOLLOW-ON TASKS:
• Install personnel ventilating air duct fan (refer to TM 9-2350-287-20-2).
10-15
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