Cisco Model D-PCG1000 PowerKEY CAS Gateway Installation Guide
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Routine Maintenance
78-545617-01 Rev F
37
Replacing the Fan
This section provides instructions for obtaining and replacing the cooling fan unit on
the QPSK demodulator.
Notes:
Notes:
Replace the fan unit only with a genuine replacement fan unit from Cisco. The
part number for the replacement fan unit is 4016501. The part number for the
replacement fan kit is 4017943. Contact Cisco to obtain replacement fans.
You must power off the demodulator in order to replace the cooling fan.
Complete these steps to replace the cooling fan on the back panel of the QPSK
demodulator.
1 Power off the QPSK demodulator.
2 On the back panel of the QPSK demodulator, unplug the fan from the
1 Power off the QPSK demodulator.
2 On the back panel of the QPSK demodulator, unplug the fan from the
connection.
3 Remove the retaining screws using a Phillips screwdriver and set the non-
functioning fan and screws aside.
Note: Be sure not to drop or misplace the screws. You will need them to replace
Note: Be sure not to drop or misplace the screws. You will need them to replace
the fan.
4 Attach the replacement fan to the back panel using the same screws you
removed previously making sure that you orient the fan so that the airflow
blows outward.
Note: Be sure to use a torque of approximately 4-6 in.-lb.
Note: Be sure to use a torque of approximately 4-6 in.-lb.
5 Plug the replacement fan into the power connection provided on the back panel.
6 Power on the QPSK demodulator.
7 Verify that the replacement fan is operating correctly. If the replacement fan does
6 Power on the QPSK demodulator.
7 Verify that the replacement fan is operating correctly. If the replacement fan does
not operate correctly, contact Cisco Services for assistance.