ASSEMBLY AND INSTALLATION - TM-10-3930-607-150137

TRANSMISSION

Orifices in the housing must be open and the pipe plugs

new one to check for looseness. Wrap bearing in clean

tight. All passage ways leading to the piston chamber

paper until it is ready to be installed.

must be open. The ball plugs must fit tight on their

seats and be staked into place. The plate and spacer

If a roller bearing is defective, check its

tangs should not be worn nor their mating surfaces

mating surface for same condition. Replace the part if it

grooved. Slight grooving caused by plate or spacer

is found to be defective.

tangs is permissible. Deeply grooved surfaces would

interfere with clutch application or disengagement,

All bearings should fit tight in their bores.

Replace parts as necessary to insure proper clutch

Ball bearings should fit tight on mating shafts. Except

function, The friction material should be bonded to the

where design permits, the bearing should not rotate in

clutch plates and thickness should be within

the bore or on the shaft, If this condition exists, replace

specifications. The friction material should not be

parts as necessary.

warped, galled or torn. Check the dish of each clutch

plate on a surface. If not within specifications, or if any

Although not absolutely necessary, all O-

of the other foregoing defects are noticed, replace as

rings and seals should be replaced. The O-rings must

necessary. Refer to Specification Listing. Make sure

be free of flat surfaces, cuts, tears or any other form of

the copper tubing in the reverse shaft is tight. Replace

deterioration. Discard if any of these exist. The seal

shaft if it is loose. Compare all springs lengths with

lips should be sharp and smooth. Replace any that are

comparable new springs.

Springs should not be

not. Check the surface making contact with O-rings and

distorted, pitted or show signs of wear. Replace as

seals. The surfaces should be smooth. In most cases,

necessary. Replace the entire set in the clutch packs, if

slight imperfections can be removed with fine

signs of overheating are noticed or if springs of a given

sandpaper. Replace any part if normal service life

pack are of different lengths.

cannot be expected.

11. Check all gears and splines for nicks and

Replace seal rings if machining marks are

burrs. The teeth should not be broken or galled. Minor

worn off, broken, or do not fit correctly in their grooves.

defects can be removed with a fine India stone.

Inspect the mating surfaces; these should be flat.

Replace all parts where excessive wear is noticed.

Replace any part that has impaired sealing surfaces.

12. Check the mainshaft flange (converter

All thrust washers should be free of scores

output shaft) for runout and out-of-round. Converter

and grooves and within specifications. Replace as

must be removed to service main shaft.

necessary. Do not try to repair thrust washers.

D. ASSEMBLY AND INSTALLATION

Bushings should fit tightly in their bores.

The bearing surfaces should be free of imperfections,

and so should the mating surfaces on the shaft. Minor

NOTE:

not,

under

any

defects can be eliminated by sanding with fine

circumstances, assemble any of the

sandpaper, Bushings that are loose must be replaced.

parts dry. If the clutch friction discs

and separator plates are installed

10. Pistons in the clutch pack end covers must

dry, they will overheat and warp

slide into and out of their bores freely.

Slight

imperfections may be removed with fine sandpaper.

B-101