Chrysler Conquest 1988 Service Manual page 1158

21-34
AUTOMATIC TRANSMISSION - General Information
Element in Use at Each Position of Selector Lever
HYDRAULIC CONTROL SYSTEM
The hydraulic control system consists of~an oil pump that generates hydraulrc pressure, the valve body
assembly incorporating a hydraulic pressure control valve, oil passage change-over valve, etc., hydraulic
piston to operate the clutches and brakes, etc. These elements are operated erther manually or hydraulically
tom controlLthepIanetary gears.
OIL PUMP
The oif pump generates hydraulic pressure to supply oil to the torque converter or control the hydraulic control
system and to lubricate the planetary gear sets, overrunnrng-clutch and Qther parts requiring lubrication.
The oil pump is an internal/external gear pump of which drive gear is driven by the pump drive hub welded at
the center of the torque converter shell, constantly developing hydraulic pressure while the engine is running.