5-2 888-2406-002
WARNING: Disconnect primary power prior to servicing.
Maintenance and Alignment
5.2.2.2 Transmitter Logbook
As a minimum performance characteristic, the transmitter should be monitored
(using front panel metering and the Diagnostic Display) and the results recorded in
the transmitter logbook at least once a day.
5.2.2.3 Maintenance Logbook
The maintenance logbook should contain a complete description of all maintenance
activities required to keep the transmitter operational. A list of maintenance
information to be recorded and analyzed to provide a database for a failure reporting
system is as follows:
DISCREPANCY
Describe the nature of the malfunction. Include all observable symptoms and
performance characteristics.
CORRECTIVE ACTION
Describe the repair procedure used to correct the malfunction.
DEFECTIVE PART(S)
List all parts and components replaced or repaired. Include the following details:
a. COMPONENT TIME IN USE
b. COMPONENT PART NUMBER
c. COMPONENT SCHEMATIC NUMBER
d. COMPONENT ASSEMBLY NUMBER
e. COMPONENT REFERENCE DESIGNATOR
SYSTEM ELAPSED TIME
Total transmitter time on.
NAME OF REPAIRMAN
Person who actually made the repair.
STATION ENGINEER
Indicates chief engineer noted and approved the transmitter repair.
5.2.3 Cleaning
Proper airflow is essential in keeping the transmitter in top working condition. If
outside air is brought into the building it should be well filtered to keep dirt out of
the building and the transmitter.
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