TM-9-2520-215-34

TM 9--2520--215--34

0005 00--22

THEORY OF OPERATION -- CONTINUED

0005 00

TORQUE PATHS THROUGH TRANSMISSION – Continued

Torque Path in Intermediate Range, Lockup Drive, No Steer

NOTE

Refer to Torque Path in Intermediate Range, Lockup Drive, No Steer Schematic View and the

Action of the Hydraulic System in Intermediate Range, Lockup Drive, No Steer Schematic

View.

When in intermediate range, lockup drive, no steer, the engine transmits torque to the turbine shaft through the lockup

clutch. The action of the steer gear system is as described in Torque Path in Low Range, Converter Drive, No Steer.

The intermediate range clutch holds the intermediate planetary ring stationary. The intermediate planetary sun gear,

being splined to the turbine shaft, rotates and forces the intermediate pinions to rotate within the ring. The intermedi-

ate range planetary carrier, to which the pinions are attached, rotates. The low range planetary ring gear is connected

to the intermediate range carrier and also rotates.

The combination of rotating speed of the low range sun gear transmits torque. The torque is then transmitted through

the low range pinion to the low range planetary carrier.

The combination of two planetaries to secure a final speed ratio is called compounding. The steer clutches are re-

leased. The outer members’ clutches are freely driven by the converter turbine shaft bevel gearing, steer cross shaft,

and spur gearing. Refer to this work package for ratios of the gears involved in intermediate range operation.

Torque Path in Intermediate Range, Lockup Drive, No Steer Schematic View

LOCKUP CLUTCH APPLIED

INTERMEDIATE RANGE

CLUTCH APPLIED

DIRECTION OF TRAVEL

07i212m

TM-9-2520-215-34 - Page 50 of 508