Comtech EF Data HPCST-5000 - Manual (Page 128)

TWT Amplifiers High-Power TWTA Satellite Terminals
4–10 Rev. 1
4.2 Maintenance and Service
4.2.1 Preventive Maintenance
Periodic preventive maintenance should be performed on the amplifiers.
1. Check the integrity of the mounting bolts. Tighten as necessary.
2. Check the integrity of the output waveguide flange mounting bolts. Tighten as
necessary.
3. Check the air inlet and exhaust ports for cleanliness. Ensure that the screens are
intact, and there is no debris in the heat fins. Use high pressure air to blow dust
and debris out of the bottom cover.