Comtech EF Data TRP500 - Manual (Page 63)

5–1
Chapter 5. MAINTENANCE
5.1 Scheduled Maintenance
Once a year (or more often depending upon environmental conditions), the SSPA should be
checked for proper operation.
• Verify the fans and vents are free of debris or anything that would impede the airflow to
cool the amplifier.
• Verify connections have remained sealed and appear to be watertight.
• Disconnect power from the SSPA.
• Remove the fan assembly (see procedure below).
• Using compressed air, blow through the SSPA heatsinks to remove any foreign objects
or debris that may have accumulated. This will help maintain heatsink efficiency.
• Re-install the fan assembly.
5.2 Fan Removal
The fans utilized by the TRP500 are designed for long life even in a harsh environment. They are
still mechanical devices subject to wear and may need replacement after several years. In dusty
environments, their removal facilitates clearing the heat sink of accumulated dust. To remove the
fan assembly:
• Disconnect power from the SSPA
• Loosen the 8 fasteners (6 shoulder screws and 2 pan head screws) holding the fan
assembly to the amplifier (See Figure 5-1).
• Carefully remove the fan assembly far enough to gain access to the 3 circular fan
connectors.
• Disconnect the circular fan connectors and remove the fan assembly.
• Replace the faulty fan(s) as necessary. (Replacements are available from Comtech).
• To re-assemble, use care to ensure that the connectors are properly engaged and that the
fan cables are not pinched.