TM 11-5840-281-12-1
4-27.
PRELIMINARY SERVICING AND ADJUSTMENT. (CONT)
CHECKING INSTALLATION (CONT)
Elevation Antenna and Servo Actuator
Check lower elevation support pin (1) and make sure clip (2) is installed. Manually rotate elevation antenna through its
entire scan cycle by either turning knurled end of motor shaft or pushing on actuator arm crank (on left side of elevation
antenna drive). Observe that there are no restrictions to movements or unusual noises. Check two pins (3 and 4) in
servo actuator and ensure they are secure.
Control-Indicators
Verify that red ventilation covers (1) on back of both control-indicators (master and slave) are removed.
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