Power Flow - Drive 1 - SSANGYONG 2004 Rexton 2.7XDi Workshop Manual

Power flow - Drive 1

In Drive 1, transmission drive is via the input shaft to the
forward clutch cylinder. The elements of the transmission
function as follows:
• The C2 clutch is engaged to drive the forward sun gear
via the 3-4 OWC.
• The forward sun gear drives the short pinion anti-
clockwise.
• The short pinion drives the long pinion clockwise.
• The 1-2 OWC prevents the planetary gear carrier from
rotating under reaction force and the long pinion rotates
on its axis driving the internal ring gear and output
shaft in a clockwise or forward direction.
• There is no engine braking on overrun.
Gear State
Drive 1
BTRA 4 AUTO TRANSMISSION
REXTON SM - 2004.4
C1 C2 C3
- X -
Control
To maintain this arrangement in the steady state sole-
noids and valves are activated as follows:
• Solenoids S1 and S2 are switched ON.
• The 1-2, 2-3, and 3-4 shift valves are held in their first
gear positions by line 500 pressure.
• Drive (line pressure) oil from the manual valve en-gages
the C2 clutch.
ELEMENTS ENGAGED
C4 B1 B2
- - -
3A2-27
1-2 3-4 LU
OWC OWC CLUTCH
X X -
Y220_3A2380
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN