TM 55-1510-222~MTF
P R O C E D U R E
T R O U B L E S H O O T I N G
REFERENCE
G. AVIONICS FLIGHT CHECKS (CONT)
pattern
is
displayed
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. recali-
brate roll stabilization cir-
cuitry to the gyro using
the following procedure:
(a) Reset the TILT con-
trol 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 potenti-
ometer until the ter-
rain band is displayed
throughout the third
range marks. Usually
a
clockwise
adjust-
ment is required.
(c) If the pattern shifts to
the left around the
second range mark.
slowly
adjust
the
ROLL TRIM potenti-
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