Clutch Packs - SSANGYONG 2004 Rexton 2.7XDi Workshop Manual

Torque converter
The torque converter consists of a turbine, stator pump,
impeller and a lock-up damper and piston assembly. As
in conventional torque converters, the impeller is attached
to the converter cover, the turbine is splined to the input
shaft and the stator is mounted on the pump housing via a
one way clutch (sprag).
The addition of the damper and piston assembly en-ables
the torque converter to lock-up under favorable conditions.
Lock-up is only permitted to occur in third and fourth gears
under specified throttle and vehicle speed conditions.
Lock-up is achieved by applying hydraulic pressure to the
damper and piston assembly which couples the turbine to
the converter cover, locking-up the converter and eliminat-
ing unwanted slippage. Whenever lock-up occurs, improved
fuel consumption is achieved. Torsional damper springs
are provided in the damper and piston assembly to absorb
any engine torque fluctuations during lock-up.
BTRA 4 AUTO TRANSMISSION
REXTON SM - 2004.4

Clutch packs

There are four clutch packs. All clutch packs are com-
posed of multiple steel and friction plates.
C1 CLUTCH: When applied, this clutch pack allows the
input shaft to drive the planet carrier. This occurs in third
and fourth gears.
C2 CLUTCH: When applied this clutch pack allows the
input shaft to drive the forward sun gear via the 3-4 OWC.
This occurs in all forward gears.
C3 CLUTCH: When applied this clutch pack allows the
input shaft to drive the reverse sun gear. This only occurs
in reverse gear.
C4 CLUTCH: When applied this clutch provides engine
braking on overrun. This occurs in Manual 1, 2 and 3 and
also Drive 2 and Drive 3 to prevent objectionable free wheel
coasting.
Y220_3A2260
3A2-17
Y220_3A2270
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