Reverse-1 Gear-Straight Travel

TM 9-2520-249-34&P

e. Reverse-1 Gear-Straight Travel (fig. 2-19).

Figure 2-19. Reverse-1 gear, straight travel operation-torque path.

(1) In reverse-1 gear, the low-range clutch

connected, through the steer planetary carriers, to the

is engaged. This transmits torque to the cross shaft as

output shafts.

explained in a(1), above. In the output sections, the

(2) The output shafts transmit torque to

the transmission outputs by means of the output transfer

reverse-range clutches are engaged. This holds the

reduction gears. The total mechanical speed reduction

reverse-range planetary carriers stationary.

The

from the engine through the transmission outputs is

reverse-range sun gears are splined to the cross shaft.

28.098 to 1. At output stall, the total torque ratio

Their rotation drives the pinions in the stationary

available (output-to engine) is (2.6x28.098) 73.055 to 1.

carriers. The pinions, in turn, drive the reverse-range

ring gears in the reverse direction. The ring gears are

2-35