TM 5-5420-226-20-1
SYSTEMS OPERATION - Continued
TRANSMISSION.
Cross-drive transmission is controlled by driver with steering and shifting
controls and brake pedal.
Transmission hydraulic torque converter multiplies engine torque
providing automatically variable torque output through planetary gear sets and hydraulically
operated clutches and bands to final drive units, sprockets, and tracks.
Refer to page 2-21.
A.
B.
c .
D.
E.
TRANSMISSION ADJUSTMENTS. Adjustments are made to mechanical linkages and valves
on exterior of engine.
TRANSMISSION MOUNTS.
Located on each side of transmission serve as powerplant
installation guides and mounts.
TRANSMISSION COOLING SYSTEM.
Cooled oil from transmission air cooler is forced
through transmission clutches and bands, through torque converter, acts as driving force in
torque converter and lubricates entire transmission.
Common oil reservoir supplies all
systems.
SHIFTING CONTROLS.
Shifting controlled by shift lever through system of mechanical
links to transmission shift valve that hydraulically controls transmission driving range
servosystems.
TRANSMISSION OIL COOLER. Oil flowing through oil coolers on each side of engine is
cooled by air drawn in by engine cooling fans.
Cooled oil flows through main oil supply
line, and flow control thermostats in coolers stop oil circulation until oil is at operating
temperature.
2-20