Figure 4-32.transmission parking brake, disassembly and reassembly

TM 10-3930-634-34

transmission case as shown in figure 4-36.

passageway for oil Under pressure to enter the shaft.

(7) Remove rear cover from transmission case (fig.

Oil pressure sealing rings are located on the clutch

4-37).

shaft to direct oil under pressure to a desired clutch.

(8) Remove low clutch rear bearing as shown in

Pressure of the oil forces the piston and discs against

figure 4-38.

the heavy backup plate. The discs, with teeth on the

(9) Remove fourth speed clutch assembly by with-

outer diameter clamping against discs with teeth on

drawing toward rear of transmission as shown in

the inner diameter, enable the hub and clutch shaft to

figure 4-39.

be locked together and allow them to drive as a unit.

NOTE

(4) There are bleed balls on the clutch piston

Do not lose rear bearing lock ball.

which allow quick escape for oil when the pressure to

(10) Remove low speed drive gear (fig. 4-40, A).

the piston is released.

(11) Carefully grasp the reverse and third speed

b. Removal. Remove the transmission assembly

clutch and withdraw from transmission case (fig.

from the forklift truck (para 2 -6).

4-40, B).

c. Disassembly into Subassemblies.

(12) Remove the low clutch as shown in figure

(1) Remove transmission control valve (para 4-7).

4-41.

(2) Remove transmission parking brake (para

(13) Block output shaft and remove flange nut (1,

4-8).

fig. 4-42), washer (2), packing (3), and output flange

(3) Remove input shaft flange and front cover

(4) from the disconnect shaft (16).

plug (fig. 4-33).

(14) Remove four screws (5), washers (6) and re-

(4) Remove front cover from transmission case

move disconnect assembly from the transmission.

(fig. 4-34).

(15) Remove preformed packing (8) from the dis-

(5) Remove input shaft and gear from front cover

connect housing (7).

(fig. 4-35).

(16) Remove shim (9) and oil seal (10).

(6) Carefully grasp the forward and second clutch

(17) Remove cup plug (11) for access to setscrew

assembly and withdraw from the front end of the

4-19