A.E.S. changes
RESTRICTED
A.
Changes In
Order To
Render
A. E. S.
Inoperat-
ive C.L.l.
B-43-20
(Cont 'd)
B.
Check For
Roller
Slippage
N. O.P.
#649
pgs.
53.
Remove the centering piece
from the A. E.S.
bail
magnet lever and
bend the lower arm of the
centering piece
amount
sufficient to lock the
centering peice
the "v" slot of the bail lock
centering plate.
5. Replace the centering piece.
Center the weight by using the, 969 gauge.
(31/32" ) .
7. Enter in Log Book.
Each time the
unit is inspected,
except the
pre-flight inspection,
check the position of the
weight with the . 969 guage because if in the main-
tenance of the
unit or in any undue vibration of
the unit while in use, the lead screw gear has been
ever so slightly, the gyro will be out of
balance.
Be sure to check and see whether brake is oD-
eratiing on the Solenoid shaft.
When locking the bail, check bail
and see that
the roller is centered
and not riding on cork
surfaces.
If the A.E.S. has not been removed keep gears
operating from
rotor shaft free
from dust and
dirt to prevent
binding.
Remove
the dust with
alcohol moistened
cotton
swab. Clean gears with
sharpened
orange stick.
CAUTION:
DO NOT clean
the gears while the
gyro is
running.
Remove
in the top of
the A.E.S. roller and oil with one drop of
light
bombsight oil every fifty (50) hours.
Oilthe
bearing on top of the bronze gear with one drop
oil every fifty (50) hours.
1.
I t
is possible to detect roller slippage by
positioning the roller so that one revolution of
disc wili cause
one revolution of the roller.
2.
Steps to
Follow:
(a)
Set rate indicator to 1.0 on the tangent
scale.
(b)
Set T-arm to 7 mils.
(c)
Remove
rate cover plate, make a pencil
mark on
the roller and disc to note their relative
positions.
an
in
6.
moved
a
the
of
the
171