TM 55-1510-220-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
throughout the third range marks. Note new position of TILT control. It should not be more
than two degrees below that noted in step (5).
(11) If the differences between steps (10) and (5) or steps (9) and (5) are greater than two
degrees, recalibrate roll stabilization circuitry to the gyro using the following procedure:
(a) Reset the TILT control under the flight conditions of step (5) with stab on. Then roll the
aircraft 20° right.
(b) If the pattern shifts to the right around the second range mark, slowly adjust the ROLL
TRIM potentiometer until the terrain band is displayed throughout the third range marks.
Usually a clockwise adjustment is required.
(c) If the pattern shifts to the left around the second range mark, slowly adjust the ROLL TRIM
potentiometer until the terrain band is displayed throughout the third
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