TM 9-2320-211-20
c. Repair.
( 8 ) If necessary, replace the split washer
and / or cork washer for the slip yoke.
(1) Inspect the cross journal bearing surfaces
for nicks, burs, and scratches. Also inspect all four
(9) Inspect all lubrication fittings for clear
shafts and bearing caps for signs of excessive wear.
passageways and signs of other damage. If
In addition, dust shields should be checked for a
necessary, replace fittings.
bent condition.
d. Assembly.
condition.
(1) Secure the propeller shaft in a suitable
vise.
(2) If any indication of damage in (1) above is
apparent, replace t h e entire u n i v e r s a l joint
(2) Slide the dust cap
(with
washers
assembly. This includes cork washers, dust shields,
positioned under cap) onto the splined end of the
bearing caps, locking plates, screws, and the cross
propeller shaft (fig. 2-171).
journal. Always replace cork washers.
(3) Position the slip yoke onto the propeller
shaft splined end, and screw the dust cap assembly
(3) Clean all parts in a drycleaning solvent or
mineral spirits paint thinner. Allow the parts to
into place on the slip yoke (fig. 2-171).
soak in solvent for a short time if possible. Use a
(4) If necessary, assemble the universa] joints
small, stiff-bristle brush to remove any remaining
by positioning the four dust shields (3, fig. 2-172),
dirt.
cork washers (2), and bearings (1) onto the cross
(4) Rinse the parts in a clean solvent and dry
journal s h a f t s ( 5 ) . I f r e m o v e d , i n s t a l l t h e
them with compressed air. Always protect the parts
lubrication fitting (4) on
the
cross
jour-
nal.
from any wind-blown dust or falling dirt until the
(5) Position the flanges of the bearing journals
parts are assembled.
to the yoke ends (fig. 2-170). Secure the universal
(5) Inspect the propeller shaft and slip yoke
joint assembly (one at each end of the shaft
splines and all threaded areas of the various parts.
assembly) to the propeller shaft yoke with two
(6) Inspect the slip yoke and propeller shaft
locking plates (7, fig, 2-172 and four capscrews (6)
for cracks, excessive wear, and bent condition. Also
e. I n s t a l l a t i o n .
check the yoke journal opening for possible
distortion.
NOTE
Always install propeller shafts so the slip
(7) If the yoke or propeller shaft is damaged,
joint is at the power input end of the shaft
replace the damaged part. If necessary, replace the
assembly.
entire slip yoke and propeller shaft assembly.
