GENERAL - TM-10-3930-607-150131

TRANSMISSION

Two multiple disc clutch packs provide the necessary

POWERSHIFT TRANSMISSION, CONTROL VALVE

coupling and uncoupling mechanism in the forward-

AND CONTROL LINKAGE

reverse shifting system. (Fig. 2) The clutch packs may

be removed from the truck without removing the

transmission assembly.

A. GENERAL

This is a single speed, constant mesh manually

Spur gears are used in the gear train, which work in

controlled transmission. (Fig. 1)

conjunction with the forward-reverse clutches. Applying

one of the clutches (never are the two clutches applied

at the same time), connects a corresponding gear to the

torque converter at the driven end of the gear train. The

driving end of the gear train drives the differential

pinion.

A crescent pump (Fig. 3) driven by the hub of the

torque converter cover, supplies the necessary oil to the

torque converter, clutches and lubrication system. It

also supplies the clutch cooling oil needed to prevent

overheating of the clutches during inching. Because

Figure 1.

Figure 2.

B-95