TM-9-2520-215-34
CROSS-DRIVE TRANSMISSION ASSEMBLY
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
DECEMBER 2005
TM-9-2520-215-34 - Page 37 of 508
TM 9--2520--215--34
0005 00--9
THEORY OF OPERATION -- CONTINUED
0005 00
HYDRAULIC SYSTEM – Continued
Action of Hydraulic System in High Range, Lockup Drive, Left Steer
NOTE
Refer to Torque Path in High Range, Left Steer Schematic View for the torque path through
the transmission.
When in high range, lockup drive, left steer, the system is the same as described for intermediate range operation,
above. The only difference is that the range selector valve directs pressure to the high range clutch instead of the in-
termediate range clutch. The converter lockup valve is controlled by throttle position. Refer to description in inter-
mediate range operation.
In high range, the shift inhibitor will prevent a downshift to intermediate range (or low and reverse range) until vehicle
speed is reduced to a safe level.
Torque Path in High Range, Lockup Drive, Left Steer Schematic View
LOCKUP CLUTCH APPLIED
HIGH RANGE
CLUTCH APPLIED
LEFT STEER
CLUTCH APPLIED
SLOWER ROTATION
DIRECTION OF TRAVEL
FASTER ROTATION
07i214m
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