Inspect PCU Heat Sink Holding Fixture

TM 9-4931-381-14&P

FRAME 13

Inspect PCU Heat Sink Holding Fixture:

Make sure PCU heat sink holding fixture ON-OFF switch (1) is set to OFF.

2. Connect PCU heat sink fan cable (2) to 115 V 60 Hz power.

WARNING

Be careful when handling the PCU heat sink when the fan

is working. You could injure yourself if you touch the fan

blades. Keep your fingers outside the finger guard at all

times.

Set ON-OFF switch (1) to ON.

Make sure fan (3) is working right. If bad, replace fan, cable or switch (as required);

refer to volume IV, para. 3-7.

END OF PREPARATION FOR OPERATION PROCEDURES

Volume I

4-25

Para. 4- 17