Figure 1-10. Removing Output Shaft and Gear

TM 10-3930-644-14&P

installing the oil filter screen in housing.

2. Make sure output shaft is installed with the

internal splines facing towards the outside of the

gear case.

3. Make sure that the machined reliefs in the idler

shaft cap are positioned down so that the oil in

the cap will drain into housing.

4. As the gears and bearings are being installed,

coat all surfaces with an acceptable lubricant

and make sure they rotate freely in their

respective locations.

Figure 1-10. Removing Output Shaft and Gear

5. When installing the bearing retainer, be certain

a. Remove capscrews holding output shaft

to align the match marks made during

cap to housing.

disassembly. Make sure seal rings rotate on the

bearing retainer and that rings are properly

b. Remove output shaft and cap, while

hooked together at ends.

holding output gear inside gear box. It

may be necessary to tap the output shaft

6. When installing the forward and reverse drive

from inside the clutch housing to facilitate

shafts and gears, check to make sure that the

removal.

snap rings holding the gears on the shafts are

properly installed and seated.

c. Remove output gear.

7. Care should be exercised when installing the

11. Remove sump screen by removi ng sump screen

converter housing on the turbine shaft of the

plug (Fig. 1-8). Remove screen and spring

drum, so that misalignment does not occur

through plug hole.

during reassembly. Make sure that the snap

ring holding the converter housing to the turbine

E. INSPECTION

shaft is properly seated.

Wash all parts, except oil seals, with suitable solvent.

8. When Installing the converter housing and drum

Blow out passages in housings with compressed air.

(as a unit) into transmission housing, care

Inspect bearings, seal rings, splined shafts, and gears

should be exercised so: as not to damage the

for wear or damage. Inspect sump screen for clogged or

collector rings fitting into the drum. Damage to

damaged screen. Install new replacement gaskets.

these rings will cause the reverse piston and

drum to be inoperative.

NOTE

Thoroughly clean the intake screen.

9. Use new gasket when replacing control valve.

in addition to soaking and washing,

Use new gaskets whenever old gaskets have

air streams should be directed from

been removed.

the inside toward the outside to

remove material clogged in the

10. Connect tube assembly to valve and converter

screen.

housing.

F. REASSEMBLY

G. INSTALLATION

To reassemble the transmission, reverse the

1. Attach lift chain and chain hoist to transmission

disassembly procedure and take note of the following

assembly and maneuver transmission into

precautionary measures:

position for installation.

1. Make certain spring is in place when

R-171-1

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