Section II. DISASSEMBLY OF TRANSMISSION INTO SUBASSEMBLIES

NOTE

(2) Inspect ball seats for wear and pitting.

Some expanders may require additional

Reseat by lapping with the proper size ball. On

bending to cause them to point toward the

seats where a nylon ball is used, a steel ball of the

bottom of the groove.

same size may be used for lapping. Discard parts in

(2) While holding expander in groove, start

which the seats cannot be restored.

seal ring into groove at a point diametrically op-

n. Spool-Type Valves.

posite expander ends. No lubrication is necessary

(1) Inspect valves for wear, burs, scoring, and

for installation.

evidence of sticking. Try valves in their bores. All

(3) Install seal by hand. Tools or instruments

valves should move in their bores by their weight

might damage seal. Do not stretch seal any more

alone. Do not force valves.

than is necessary for installation.

(2) Inspect edges of all valve lands. All edges

(4) Center piston in piston bore when in-

should be square and sharp. Do not destroy these

stalling it, to prevent seal damage. Be extremely

sharp edges in cleaning or repair operations. These

careful to avoid scratching, nicking, or distorting a

sharp edges help prevent the accumulation of

Teflon seal.

substances which might cause the valve to stick in

WARNING

its bore.

Do not destroy discarded Teflon seals by

(3) Remove burs with a soft honing stone.

burning; toxic gases are produced.

Reclean valves if necessary to remove gum and dirt.

Discard all valves which have other defects.

5-4. Repair and Overhaul and (Rebuild)

o. Sheet Metal Parts.

Standards

(1) Inspect sheet metal parts for bends, cracks,

a. Clearances a n d Wear Limits. Refer to

distortion, interference with adjacent parts, and

paragraph 6-2 and 6-3 for data covering the sizes

loose-welded points.

and fits of new parts and wear limits information.

(2) Straighten bent parts. Weld cracks or loose

b. Torque Specifications. Refer to table 6-1 for

welds.

general torque specifications for bolts, screws, and

(3) Discard governor oil collector rings if any

nuts. Special torque specifications are given in the

damage is evident.

text where applicable.

p. Installation of Teflon Seals and Expanders.

c. Spring Specifications. Refer to table 6-2 for

(1) Install expander into seal ring groove so

spring specifications.

that its ends bend toward bottom of groove.

Section II. DISASSEMBLY OF TRANSMISSION INTO SUBASSEMBLIES

5-5 General

a. Pictorial Steps. This section is arranged in

consecutive pictorial steps, completely illustrating

the disassembly of the transmission. Directly

beneath each picture are simple disassembly in-

structions, keyed to the picture.

b. Transmission Component Groups. See ap-

propriate exploded view of major component

groups for parts identification and assembly

sequence.

5-6. Disassembly Steps

Drain oil from transmission, if it was not drained

before transmission was removed from vehicle.

Refer to end item lubrication order to draining

procedures. See figure 5-1 through 5-52 for

disassembly steps.

NOTE

Refer to end item organizational manual

for instructions on removing the trans-

mission from the vehicle and separating

Figure 5-1 (Step 1).

the transmission from the power pack.

Attach lifting sling 4910-572-8614 (8356184) (A)

to transmission, using four 3/8-16 x 1 bolts and plain

washers (B).

5-3