1997 SSANGYONG KORANDO manual transmission

AUTOMATIC TRANSMISSION 5A-23
SSANGYONG MY2002
Power Flow - Reverse
In Reverse, transmission drive is via the input shaft
and the forward clutch cylinder to the hub of the C3
clutch. The elements of the transmission function as
follows;
The C3 clutch is engaged and drives the reverse
sun gear in a clock-wise direction.
The B2 band is engaged and holds the planetary
gear carrier stationary causing the long pinion to
rotate anti-clockwise about its axis on the pinion
shaft.
The long pinion drives the internal ring gear in the
same direction.
The internal ring being splined to the output shaft
drives it in an anti-clockwise or reverse direction.Control
To maintain this arrangement in the steady state sole-
noids and valves are activated as follows;
Solenoids S1 and S2 are switched OFF.
Line pressure is directed through the reverse lockout
valve to both the inner and outer apply areas of the
rear servo piston for B2 band application.
Line pressure feeds the reverse oil circuit via the
manual valve.
Reverse oil is routed from the manual valve to the
C3 clutch.
Reverse oil is also applied to the spring end of the
primary regulator valve to assist the spring and to
boost the line pressure value.
All other clutch and band apply circuits are open to
exhaust.
C3
X
Gear State
ReverseC1
-C2
-C4
-B1
-B2
X1-2
OWC
-3-4
OWC
-LU
CLUTCH
- ELEMENTS ENGAGED
KAA5A340

5A-24 AUTOMATIC TRANSMISSION
SSANGYONG MY2002
MANUAL 1
KAA5A35A

AUTOMATIC TRANSMISSION 5A-25
SSANGYONG MY2002
Power Flow - Manual 1
In Manual 1, transmission drive is via the input shaft
to the forward clutch cylinder. The elements of the
trans-mission function as follows;
The C2 clutch is engaged to drive the forward sun
gear, via the 3-4 OWC.
The B2 band is engaged to hold the planetary gear
carrier stationary.
The forward sun gear drives the short pinion anti-
clockwise.
The short pinion drives the long pinion clockwise.
The long pinion rotating about its axis drives the
inter-nal ring gear and the output shaft in a clockwise
or forward direction.
The C4 clutch provides engine braking through the
3-4 OWC on overrun.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.
Lo-1st (line pressure) oil is routed through the 1-2
shift valve to the C4 clutch, and to the inner apply
area of the rear servo piston for B2 band application.
ELEMENTS ENGAGED
Gear State
Manual 1C1
-C2
XC3
-C4
XB1
-B2
X1-2
OWC
-3-4
OWC
XLU
CLUTCH
-
KAA5A360

AUTOMATIC TRANSMISSION 5A-27
SSANGYONG MY2002
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.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.
Gear State
Drive 1C1
-
C2
XC3
-C4
-B1
-B2
-1-2
OWC
X3-4
OWC
XLU
CLUTCH
- ELEMENTS ENGAGED
KAA5A380

5A-28 AUTOMATIC TRANSMISSION
SSANGYONG MY2002
DRIVE 2 AND MANUAL 2
KAA5A39A

AUTOMATIC TRANSMISSION 5A-29
SSANGYONG MY2002
Power Flow - Drive 2 and Manual 2
In Drive 2 and Manual 2, transmission drive is via the
input shaft and forward clutch cylinder. The elements
of the transmission function as follows;
The C2 clutch is applied to drive the forward sun
gear.
The forward sun gear drives the short pinion anti-
clockwise.
The short pinion drives the long pinion clockwise.
The B1 band is applied holding the reverse sun
gear stationary therefore the long pinion walks
around the reverse sun gear taking the internal ring
gear and output shaft with it in a clockwise or
forward direction.
The C4 clutch is applied to bypass the 3-4 OWC
and provide engine braking on overrun.
Control
To maintain this arrangement in the steady state sole-
noids and valves are activated as follows;
Solenoid S1 is switched OFF. S2 is switched ON.
Drive (line pressure) oil from the manual valve en-
gages the C2 clutch.
When S1 switches OFF, S1 oil pressure, which is
derived from line 500 pressure, moves the 3-4 shift
valve to the left. At the same time S1 oil is directed
to the 1-2 shift valve which moves the valve to the
second gear position.
2nd oil (line pressure) from the 1-2 shift valve is di-
rected to the band apply regulator valve, and to
the 2-3 shift valve.
The band apply feed regulator valve supplies 2nd
oil (regulated to line pressure multiplied by the valve
ratio) to the Band Apply Feed (BAF) circuit.
Band apply feed oil is directed to;
- The outer apply area of the front servo
- The 1-2 shift valve to provide an exhaust port
when the transmission is shifted to first gear
- The 3-4 shift valve for use when the transmission
is shifted into fourth gear
Drive (line pressure) is routed through the 3-4 shift
valve to apply the C4 clutch.
Gear State
Drive 2 and Manual 2ELEMENTS ENGAGEDC1
-C2
XC3
-C4
XB1
XB2
-1-2
OWC
-3-4
OWC
XLU
CLUTCH
-
KAA5A400

5A-30 AUTOMATIC TRANSMISSION
SSANGYONG MY2002
DRIVE 3 AND MANUAL 3
KAA5A41A

AUTOMATIC TRANSMISSION 5A-31
SSANGYONG MY2002
Power Flow - Drive 3 and Manual 3
In Drive 2 and Manual 2, transmission drive is via the
input shaft and forward clutch cylinder. The elements
of the transmission function as follows;
The C2 clutch is engaged to drive the forward sun
gear.
The C1 clutch is engaged to drive the planet carrier.
The short pinion drives the long pinion clockwise.
The forward sun gear and the planet carrier are driv-
en clockwise at the same speed therefore there is
no relative motion between the sun gear and the
pinions.
The ring gear and output shaft are driven in a clock-
wise or forward direction at input shaft speed.
The C4 clutch is applied to bypass the 3-4 OWC
and provide engine braking on overrun.
Control
To maintain this arrangement in the steady state sole-
noids and valves are activated as follows:
Solenoid S1 is switched OFF. S2 is switched OFF.
With S1 and S2 switched OFF, the 2-3 and 3-4 shift
valves are held in the third gear position by line
500 pressure.
The 1-2 shift valve is held in the third gear position
by S1-S2 oil pressure.
2nd oil (line pressure) from the 1-2 shift valve is di-
rected to the band apply feed regulator valve and
to the 2-3 shift valve.
The band apply feed regulator valve supplies 2nd
oil (regulated to line pressure multiplied by the valve
ra-tio) to the Band Apply Feed (BAF) circuit.
Band apply feed oil is directed to;
- The outer apply area of the front servo
- The 1-2 shift valve to provide an exhaust port
when the transmission is shifted to first gear
- The 3-4 shift valve for use when the transmission
is shifted into fourth gear
2nd oil at the 2-3 shift valve is directed to the 3rd
oil circuit.
3rd oil from the 2-3 shift valve is directed to the
clutch apply regulator valve, and to the 4-3
sequence valve.
The clutch apply regulator valve supplies oil (regu-
lated to line 500 pressure multiplied by the valve
ratio) to the Clutch Apply Feed (CAF) circuit.
The CAF oil is directed to;
- The C1clutch
- The 4-3 sequence valve
At the 4-3 sequence valve the CAF oil becomes
Band 1 Release Feed (B1R-F) oil, and is directed
through the 3-4 shift valve to the spring end of the
4-3 sequence valve, and to the release side of the
front servo piston to hold band 1 OFF.
Drive (line pressure) is routed through the 3-4 shift
valve to apply the C4 clutch.
3-4
OWC
XLU
CLUTCH
- ELEMENTS ENGAGED
Gear State
Drive 3 and Manual 3C1
XC2
XC3
-C4
XB1
-B2
-1-2
OWC
-
KAA5A420