TM-9-2320-273-34

TRUCK TRACTOR, LINE HAUL; LIGHT EQUIPMENT TRANSPORTER; TRUCK CHASSIS; MEDIUM EQUIPMENT TRANSPORTER

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE

DECEMBER 1980

TM-9-2320-273-34 - Page 180 of 801

TM9-2320-273-34

TA 074052

Figure 7-1. Transmission Components.

rear gear group, The output brake has a plate and two disks that are cooled by oil. Air pressure is used to

engage the brake. Spring force is used to release the brake. When the brake is engaged, the rotation of the

rear gear group is stopped.

(5) Output Clutch Group.

The output clutch group connects the gear group to the output shaft

of the transmission. The clutch group has several plates and disks that are cooled by oil. The output clutch

is engaged by air pressure. Spring force is used to release the clutch. When the clutch is engaged, power is

sent from the gear group to the output shaft and to the drive line of the truck,

(6) Transmission Control Group.

The transmission control group has air cylinders that move the

shift forks. These air cylinders are activated in the correct sequence for the desired transmission ratio by

air pressure signals sent from the ratio selector.

7-2