Comtech EF Data LPOD-R - Manual (Page 149)

LPOD-R Outdoor Amplifier / Block Up Converter MN-LPODR
Appendix B Revision 1
B–9
B.4 Cleaning the LPOD-R PS 1.5 Heat Sinks (FUTURE)
Follow these steps to clean the LPOD-R PS 1.5 Heat Sinks:
Step Task
1 Disconnect power from the LPOD-R.
2 Remove the screws from all four sides of the LPOD-R as needed – see Figure B-13.
Be sure to use an appropriate screwdriver, such as the one provided with the LPOD-R,
to avoid damaging the screws.
The length of the four screws indicated in green are longer than those indicated
elsewhere. Be sure to re-install these longer screws at the same locations.
The two screws located behind the waveguide may be difficult to remove without first
removing the waveguide from the chassis.
3 Lift the fan shroud assembly far enough off the chassis to expose the heat sink and access the fan
power supply connections – see Figure B-14.
4 Disconnect each fan power supply by carefully pulling the mated connector components straight
apart – see Figure B-15.
Do not twist the mated cable connection when disconnecting the cable assemblies.
5 Visually inspect the exposed LPOD-R heat sink, located on the top of the chassis, for any
accumulated debris or blockage that may be obstructing airflow. Use compressed air to clear and
clean the heat sink as needed – see Figure B-16.
Be sure to blow between the heat sink fins to remove any foreign object accumulation.
6 Reconnect each fan power supply. First, align the male and female connector’s tabs. Then, push
the connectors together until the connection locks – see Figure B-17
Do not twist the mated cable connections when reconnecting the fan power
supplies.
The fan power supply cables are labeled Fan 1 and Fan 2. Make sure to
connect the chassis Fan 1 cable to the fan shroud Fan 1 cable, and the chassis
Fan 2 cable to the fan shroud Fan 2 cable.
7 Re-install the fan shroud onto the chassis – Be sure to keep the fan power supply cables clear of
the fan and heat sink surfaces. Then, re-install all screws as described in Step 2, making sure to
re-install the four longer screws at their same locations.
Torque the screws to 8 ±1 inch lbs.
8 Reconnect the power source to the LPOD-R.