TM 9-2520-272-34&P
1-4. NOMENCLATURE CROSS-REFERENCE LIST
This list matches common names used in this manual with official nomenclature used in
description column of Repair Parts and Special Tools List (RPSTL), Appendix B.
Common Name
Official Nomenclature
hydrostat
thrust washer
clutch backing plate
external-tanged clutch plate
reaction plate
internal-splined clutch plate
friction-faced clutch plate
lube tube
scavenge tube
filter-in tube
filter-out tube
sump communication tube
range input shaft
cam shaft
helical coil insert
petroleum jelly
hydrostatic pump and motor assembly
thrust washer bearing
clutch disk
clutch disk
clutch disk
clutch disk
clutch disk
metallic tube
metallic tube
metallic tube
metallic tube
metallic tube
shouldered shaft
control cam
screw thread insert
petrolatum
1-5. REPORTING EQUIPMENT IMPROVEMENT RECOMMENDATIONS (EIR)
If your transmission needs improvement, let us know. Send us an EIR. You, the user, are the
only one who can tell us what you don’t like about your equipment. Let us know why yOU don’t
like the design. Put it on an SF 368 (Quality Deficiency Report). Mail it to us at:
Commander
U.S. Army Tank-Automotive Command
AMSTA-QRT
Warren, Michigan 48397-5000
We’ll send you a reply.
1-6. FUNCTIONS OF THE TRANSMISSION
Vehicle Drive Power. Power is transmitted from engine to transmission through the torque
converter. The torque converter is a fluid C O Upling and torque multiplier. The increased torque
from the torque converter is extended through selected planetary gears to output shafts.
Left and right output shafts transmit power to the final drive assemblies The final drive units
operate sprocket drive shafts for left and right tracks.
A clutch arrangement in the transmission enables gear selection.
Steerinq. Steering is accomplished through the transmission.
Braking.
Braking is accomplished through the transmission.
1-2
Para. 1-4
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