Assembly - TM-10-3930-633-340137

TM 10-3930-633-34

CAUTION

(a) No damage or dents on propeller shaft

Failure to align arrows will cause ex-

tubing which could cause unbalance. If the dents

are severe enough they can weaken the tube and a

cessive shaft vibration and rapid failure.

failure might occur under torque load.

(3) Work the bearing journal into place in

each yoke, and install bearings (5) through the

(b) Splines should slide freely with slight

drag from spline seal.

eyes of each yoke.

(4) Install snap rings to secure bearings in

excessive bind. A slight drag is the most desirable

yoke.

condition on a new universal joint. This drag is

(5) Lubricate the shaft assembly by applying

from the bearing seals. When rotating, yoke lug

proper lubricant (LO 10-3930-633-12) with a

deflections cause some additional clearance.

grease gun to the fittings on each bearing journal

Excessive looseness is not desirable due to the

and on the slip yoke. Grease should be added until

resulting unbalance.

it begins to extrude through the bearing and slip

yoke seals.

(d) Mounting flanges and pilots should be

free from burrs and paint which would not allow

(6) Check the assembly before installation for

proper seating at assembly.

the following conditions:

8-3