Figure 7-32. Installing Front Clutch Hub.

TM 10-3930-633-34

that does not slide freely on the serrations or that

is not flat.

(6) Check the clutch hub thrust surfaces for

scores and the clutch hub splines for wear.

(7) Inspect the turbine shaft bearing surfaces

for scores. If excessive clearance or scores are

found, discard the unit.

(8) Check the splines on the turbine shaft for

wear and replace the shaft if the splines are ex-

cessively worn. Inspect the bushing in the turbine

shaft for scores.

c. Assembly.

(1) Lubricate all parts with transmission

fluid. Install a new piston inner seal ring in the

clutch cylinder. Install a new piston outer seal in

the groove in the piston.

(2) Install the piston in the clutch housing.

Make sure the steel bearing ring is in place on the

piston.

(3) Position the release spring in the clutch

cylinder with the concave side up. Place t h e

release spring compressor on the spring, and

compress the spring with an arbor press. Then

install the snap ring as shown in figure 7-29.

Figure 7-32. Installing Front Clutch Hub.

Make sure the snap ring is fully seated in the

(6) Install the pressure plate in the clutch

groove.

cylinder with the bearing surface up (figure 7-33).

(4) Install the front clutch housing on the

Install the composition and the steel clutch plates

primary sun gear shaft by rotating the clutch

alternately, starting with a composition plate

units to mesh the rear clutch plates with the

(fig. 7-34). When new composition clutch plates

serrations on the clutch hub. Do not break the

are used, soak the plates in automatic trans -

seal rings.

mission fluid for 15 minutes before they are

(5) Install the clutch hub in the clutch

assembled.

cylinder with the deep counterbore down (fig. 7-

32). Install the thrust washer on the clutch hub.