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a. Remove the handwheels, four screws holding the meter panel to the gear box, and the six screws
securing the front panel to the chassis. Lower the front panel.
b. Reenergize the equipment and while scanning a small sector at a slow rate, loosen the three allen-
head screws holding the antenna position potentiometer, R4, in position. Slowly rotate R4 on the Control Indicator until
the sector scanned is equal on either side of 000.0 degree within 5 degrees.
c. Tighten the allen-head screws loosened in step b. Care should be taken when tightening these
screws to keep the potentiometer from slipping.
d. Reinstall the hardware removed in step a.
(4) If, when scanning, the minimum sector scanned is not approximately 5 degrees, rotate potentiometer
A1R8 on the Control Indicator until the minimum sector scanned reaches these limits.
6. OPERATING PRECAUTIONS
A. No special precautions are to be observed during operation of the Antenna System. Operating procedures which
are essential to highlight are supplemented by notes in the operating procedures contained in paragraph 7 of this section.
The following CAUTION is to be observed prior to operation:
CAUTION
Do not operate the system until the green PRESSURE SAFE indicator light on the Antenna
Control Power Supply illuminates when the ANTENNA SYSTEMS POWER circuit breaker, CB3, is
in the ON position. The radome pressure meter should indicate approximately 0.5 PSI.
NOTE
During operation, the AZ ORIENT control should be in the position recorded in paragraph 3.A of
this section.
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