TM 5-6675-250-10
2-1. OPERATOR'S CONTROLS AND INDICATORS - Continued
(6) Brake on indicator (6). The BRAKE
ON indicator is illuminated when the
MODE SELECT switch is placed to
B R A K E ON, initiating the braking
sequence. At the completion of the
sequence, a 90-second dynamic brak-
ing of the gyro motor, the BRAKE ON
indicator light will be extinguished.
( 7 ) Theodolite brightness control (7).
Control of the theodolite lamp bright-
ness is provided through the THEO
B R T control. Rotating the control
clockwise increases the intensity of
the light.
(8) Reset switch (8). The RESET switch
enables the operator to reinitiate the
gyrocompass interval. Pressing the
R E S E T switch extinguishes the
READ AZIMUTH indicator and reini-
tiates gyrocompass action for a mini-
mum of 45 seconds.
(9) Bias control (9). Following self-test
operations, the instrument is adjust-
ed for bias through the BIAS control.
Rotating the BIAS control clockwise
will move the pointer to the right, and
counterclockwise rotation will move
the pointer to the left. Careful atten-
tion shoud be given to positioning the
pointer in the center of the scale to
ensure the highest degree of accura-
cy.
2-12
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