SSANGYONG Rexton Y200 Manual page 984

5A-12 AUTOMATIC TRANSMISSION
Valve Body
Manual Valve
The manual valve is connected to the vehicle selector
mechanism and controls the flow of oil to the forward
and reverse circuits. The manual valve function is
identical in all forward gear positions except that in
the Manual 1 position an additional supply of oil is
directed to the 1-2 shift valve for application of the
rear band and the C4 overrun clutch. The manual valve
directs the line pressure into the PRND fluid circuits.
1-2 Shift Valve
The 1-2 shift valve is a two position valve that must be
switched to the 2, 3 and 4 position in order to get any
forward gear other than first gear. It is used for all 1-2
and 2-1 gearshifts.
The switching of this valve is achieved by using S1
and/ or S2.
During a 1-2 gearshift drive oil from the manual valve
passes through to the second gear circuit. During a 2-
1 gearshift the band apply feed oil is allowed to exhaust
via the 1-2 shift valve.
The 1-2 shift valve works in conjunction with the 3-4
shift valve to disengage the C4 clutch in first gear,
and engage C4 in second gear. When Manual 1 is
selected the C4 clutch and rear band (B2) are engaged.
KAA5A090
2-3 Shift Valve
The 2-3 shift valve is a two position valve. It is used
on all 2-3 and 3-2 gearshifts.
The switching of this valve is achieved by S2 which is
located at the end of the valve spool.
In the 1, 2 position, second gear oil from the 1-2 shift
valve is prevented from entering the third gear circuit.
When the valve is moved to the 3, 4 position, oil from
the second gear circuit is routed to the third gear circuit
and the transmission is changed to third gear.
KAA5A100
3-4 Shift Valve
The 3-4 shift valve is a two position valve. It is used
for all 3-4 and 4-3 gearshifts.
The switching of this valve is achieved by S1 which is
located at the end of the valve spool.
During a 3-4 gearshift the 3-4 shift valve:
•
Exhausts the front band release (B1R) circuit
thereby allowing the application of the front band
(B1).
•
Connects the inner apply area of the front servo
(B1AI) to the Band Apply Feed (BAF) circuit thus
allowing greater apply forces to the front band.
•
Exhausts the Overrun Clutch (OC) circuit which al-
lows the C4 clutch to disengage.
KAA5A110
KAA5A120
SSANGYONG Y200