Clutch adjustment
RESTRICTED
a.
Clutch-
es
F:g.22
8. 3
5. Direct-
ional
Gyro
and
Cardan
Oiling
N.O.P.
#650
F1g.23
Never use an abrasive on the clutch surfaces.
After cleaning and oiling
the ciutches
and check
the tension at which each clutch
The bombsichi clutch should slip at
iss.
Clockwise
the collar
spring and
nut wii! increase the tension;
counter-clockwise
rotation wi!! decrease the ten-
checking the tensen have the two
marks or
are bombsignt clutch connectine red coin-
ciding with the edges of the connecting roc ciamp
bracket.
The auto-pilot clutch should siip at
10-2! !5s.
Tension adjustment is obtalmed with
adjusting screw
and
spring.
Ibs.
C.
The drift clutch
Adjust with slotted nut on end of screw.
(Tension
adjustment).
d.
when checking
have the
gyro wedged and
servo running.
reranore tensionst
right angles to radlus to which scale is attached.
Attach
scale to foliowing points:
1.
Bombsight clutch
connecting rod
pin
in outer end of bombsight
clutch
connecting rod.
2.
3.
Auto-pilot clutch operating knob.
Drift clutch; auto-pilot connect-
ing rod stud.
1.
Inspect gyro rotor bearing; if dry, place
one drop of
heavy bombsight oil directly on the
balls of
each bearing.
WARNING: DO NOT TOUCH
APPLICATOR TO ANYTHING.
b.
When
removing stabilizer bearing caps
punch
screws through paper and mark so that they
can be replaced in their correct positions.
Watch
for the
lock washer in the bearing opposite the
commutator because it sometimes sticks
to the
bearing
cap.
Check to see that the
washer is in-
stalled
before
replacing the bearing cap.
During
operation all oil except a light
is thrown out.
To check
this film.
stabilizer bearings, drag a dry
If the hair sweeps off
the ball is dry and the bearing needs oil.
hair follows the contour of the ball, the
bearing needs no cil. A cigarette paper may be
47