Forward and Second Clutch Reassembly.

TM 10-3930-634-34

necessary to tap the gear with a rawhide mallet as

(5) Install seal rings (17 and 18) in grooves of

shown in figure 4-57, B, to seat the gear properly.

piston (16) and carefully install piston in drum and

(9) Position outer bearing (8, fig, 4-46) over drum

hub (21).

shaft with shielded side of bearing facing away from

(6) Position return spring (10), retainer (9) and re-

clutch assembly. Drive the bearing with mallet and

taining ring (8) over shaft (23). Compress the return

brass sleeve against the inner race as shown in figure

spring (10) as shown in figure 4-52, D, and seat retain-

4-57, C.

ing ring (8, fig. 4-48) in proper groove on shaft.

(10) Install retaining ring (5, fig. 4-46) on drum

(7) Install one outer disc (15) and one inner disc

shaft.

(14). Alternate outer and inner discs until six of each

(11) Install bearing (3) on drum shaft as shown in

type are installed.

figure 4-57, D.

(8) Position inner bearing (6) over shaft (23).

(12) Install retaining ring (2) and seal rings (1) on

Drive the bearing with mallet and brass sleeve against

end of shaft.

inner race as shown in figure 4-56, A. Seat the bearing

against retaining ring (8, fig. 4-48). Install spacer (7)

(13) Install front bearing retaining ring (4) in

front cover housing (fig. 4-34, C).

next to bearing (6).

u. Front Cover and Tubes Reassembly. Reassemble

(9) Position seal ring (11) in groove inside splined

the front cover in reverse of instructions for disassem-

end of gear (5).

bly, (e above).

(10) Carefully install gear (5), splined end first,

v. Reassembly of Sub-Assemblies.

over shaft (23), engaging splines of inner discs (14).

(1) Install items (1 through 9, fig. 4-44) into

Seat gear on inner bearing (6).

transmission case in reverse of numerical sequence

(11) Position outer bearing (6) over shaft (23).

shown.

Drive the bearing with mallet and brass sleeve against

(2) Figure 4-58, A, provides a typical view of an

inner sleeve as shown in figure 4-56, B. Seat the bear-

assembled output shaft with gear, spacer and tapered

ing into the gear (5, fig. 4-48). Install inner retaining

roller bearing as they would be assembled in the trans-

ring (3).

mission case.

(12) Position front bearing (4) over shaft (23).

(3) Preassemble shaft (34, fig. 4-42), pilot bush-

Drive bearing with mallet and brass sleeve against in-

ing (33), bearing cone (31) and spacer (32).

ner sleeve as shown in figure 4-56, C. Seat the bearing

(4) Position output gear (29) in transmission case

against retaining ring (3, fig. 4-48).

with protruding hub toward front cover end of case.

(13) Install outer retaining ring (3) and three seal

(5) Insert preassembled output shaft (34) into the

rings (2).

front of the case and through output gear.

t. Forward and Second Clutch Reassembly.

(6) Install front bearing cup (30).

(1) Starting with one end of clutch, position new

(7) Block the output shaft assembly (34) and

seal rings (20 and 21, fig. 4-46) into grooves of piston

install bearing cone (28) with large diameter of bearing

(19). Insert piston (19) into clutch drum, using care not

toward the interior of the transmission as shown in.

to damage the seal rings.

figure 4-58, B, Install rear bearing cup (27, fig. 4-42).

(2) Position return spring (14), retainer (13) and

(8) Using new preformed packings (25 and 26) in-

retaining ring (12) over drum shaft. Compress the

stall bearing cap (24). Lubrication opening in the

return spring (14) as shown in figure 4-47, D, and seat

bearing cap must be alined with lubrication opening in

retaining ring (12, fig. 4-46) in proper groove on shaft.

the transmission case.

(3) Install one outer disc (18) and one inner disc

(9) Install screws (22) with lockwashers (23).

(17), Alternate outer and inner discs until six of each

Tighten screws to 86 lb-ft of torque.

type have been installed.

(10) Temporarily install disconnect housing (7);

(4) Install end plate (16) and retaining ring (15).

torque screws (5) to 86 lb-ft and rock the output shaft

(5) Repeat steps (1) through (4) above for identical

to seat both the front and rear taper roller bearings.

clutch pack in opposite end of clutch drum and shaft

(11) Using an inch-pound torque wrench with

(22).

splined adapter as shown in figure 4-58, C, determine

(6) Position inner bearing (10) over grooved end of

the rolling torque of the output shaft and record.

drum shaft (22). Drive the bearing with a mallet and

(12) Loosen screws (5, fig. 4-42) and repeat (11)

brass sleeve against the inner race a shown in figure

above. Desired operational rolling torque of output

4-57, A. Seat the bearing against shoulder on shaft.

shaft is 6 to 8 lb-in more than reading recorded with

(7) Install retaining rings (9 and 11, fig. 4-46) and

screws loose. Compare the two recorded readings and

seal ring (7) in gear (6).

select shims (9) to provide desired rolling torque with

(8) Carefully position the gear (6), protruding end

screw torqued to 86 lb-ft. Remove the disconnect

first, over the drum shaft, engaging splines of inner

housing (7) and set selected shims (9) aside.

discs (17) and seating on bearing (10). It may be

4-24