clock SSANGYONG KORANDO 1997 Service User Guide

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

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

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

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

AUTOMATIC TRANSMISSION 5A-35
SSANGYONG MY2002
Power Flow - Drive 4 (Overdrive)
In Drive 4 (Overdrive), transmission drive is via the
input shaft to the forward clutch cylinder.
The elements of the transmission function as follows;
The C1 clutch is applied to drive the planet carrier
clockwise.
The B1 band is applied to hold the reverse sun gear
stationary.
As the planet carrier tuns, the long pinion walks
around the stationary reverse sun gear and rotates
around its axis driving the internal ring gear and
output shaft in a clockwise or forward direction at a
speed faster than the input shaft i.e. in overdrive
ratio.
The forward sun gear is also driven faster than the
input shaft and overruns the 3-4 OWC.
The C2 clutch is engaged to reduce the speed differ-
ential across the 3-4 OWC.
Control
To maintain this arrangement in the steady state sole-
noids and valves are activated as follows;
Solenoid S1 is switched ON. S2 is switched OFF.
With S1 switched ON, the 3-4 shift valve is held in
the fourth gear position by line 500 pressure on the
small end of the valve.
With S2 switched OFF, the 2-3 shift valve is held in
the fourth gear position by line 500 pressure on the
large end of the valve.
The 1-2 shift valve is held in the fourth gear position
by 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 inner apply area of the front servo piston via
the 3-4 shift valve
- the 1-2 shift valve to provide an exhaust port
when the transmission is shifted to first 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 C1 clutch
- the 4-3 sequence valve
Drive oil (line pressure) from the manual valve en-
gages the C2 clutch.
Gear State
Drive 4 Overdrive
C1
XC2
XC3
-C4
-B1
XB2
-1-2
OWC
-3-4
OWC
-LU
CLUTCH
- ELEMENTS ENGAGED
KAA5A460

5A-166 AUTOMATIC TRANSMISSION
SSANGYONG MY2002
9. Invert the clutch cylinder and remove the C4 clutch
sleeve, clutch plates and the two wave washers.
The 3 - 4 one way clutch is located between the
C2 and C4 clutch hubs, and the hubs may be
separated by rotating one hub clockwise and
withdrawing it from the other.
10. Remove the thrust block from the C4 clutch
cylinder hub.
11. Mount the clutch cylinder on clutch spring
compressor 0555-336259 with the C2/C4 end
uppermost and compress the piston return spring.
Remove the spring retaining circlip. Release the
tool and remove the circlip, keeper and spring.
Notice: Make sure that the spring keeper is not
caught in the circlip groove, and that all the spring
pressure is released, before removing the tool.
12. Invert the clutch cylinder on the compressor tool
and removethe C1 clutch piston return spring in
asimilar manner.
13. To remove the clutch pistons from the clutch
cylinder, apply air pressure to the apply ports in
the bore of the cylinder.
C3 Clutch Cylinder
Tools Required
0555-336259Clutch Spring Compressor
1. Remove the forward sun gear, No. 7 needle
bearing (2) thrust washer (1) and lipped thrust
washer (3) from the C3 clutch cylinder.
2. Remove the thrust plate (4), No. 6 needle bearing
(5), thrust plate (6) and nylon thrust plate (7) from
the clutch cylinder hub.
3. Remove the clutch plate retaining circlip and re-
move the clutch plates.
KAA5A680
KAA5A690
KAA5A700
KAA5A720

AUTOMATIC TRANSMISSION 5A-167
SSANGYONG MY2002
4. Mount the clutch assembly on clutch spring com-
pressor 0555-336259 and compress the piston re-
turn spring.
5. Remove the circlip and release the spring.
6. Remove the tool, circlip, keeper and spring.
Notice: Make sure that the spring keeper has not
been caught in the circlip groove, and that all spring
pressure has been released, before removing the tool.
7. Remove the sealing rings from the C3 clutch
cylinder.
8. To remove the clutch piston from the clutch cylinder,
apply air pressure to the port between the iron
sealing rings on the bearing journals of the cylinder.
9. Remove the reverse sun gear and C3 washer from
the cylinder.
Planet Carrier Assembly and Centre
Support
1. Remove the No. 9 (2) needle bearing and washer
(1) from the output shaft and the planet carrier.
2. Separate the centre support from the planet carrier
by rotating it anti-clockwise.
3. Lift the one way clutch (1) from the planet carrier
(5).
4. Remove the circlip (2) retaining the one way clutch
outer race (3) in the planet carrier and remove the
race.
5. Remove the one way clutch retainer (4) from the
planet carrier.
KAA5A750 KAA5A740 KAA5A730
KAA5A760

5A-176 AUTOMATIC TRANSMISSION
SSANGYONG MY2002
Planet Carrier Assembly and Centre Support
1. Check the carrier and planet assembly for any
damage or irregularity and ensure that all pinions
rotate freely and that the pinion end float is within
0.10 mm - 0.50 mm.
2. Install the One Way Clutch (OWC) retainer (1) to
the planet carrier with the inner edge pointing down-
wards. Inspect the OWC race and the sprag
assemblies for wear or damage. Replace if
necessary.
3. Install the outer (3) race in the drum. Press the
race to the bottom of the drum and install the
retaining circlip (2). Ensure the circlip is firmly
seated in its groove.
4. Install the OWC (1) into the outer race with the lip
edge uppermost. Lubricate the sprags with auto-
matic transmission fluid.
5. Check that the plugs are fitted to the centre
support, then assemble the centre support into
the OWC, ensuring that the support will rotate in
an anti-clock-wise direction only.
6. Lubricate the No. 9 needle bearing and washer
with petroleum jelly and fit them to the rear face
of the planet carrier.
7. In s t a l l th e
KAA5A0A0
KAA5A760
KAA5A750
KAA5A560
Tightening Torque20 - 27 Nm
(15 - 20 lb-ft)

5A-182 AUTOMATIC TRANSMISSION
SSANGYONG MY2002
26. Check the clutch pack clearance using only the
weight from 0555-336260 clutch pack clearance
kit.
Notice: With the clutch pack supporting a 2
kgweight, the dimension from the C3 clutch hub
locating step to the friction plate is to be between
0.80 - 1.05 mm.
27. Use selective plates to achieve the correct
specifica-tion. If new friction plates are being
fitted, remove the clutch pack and soak the friction
plates in ATF for a minimum of 5 minutes prior to
reassembly.
Notice: The clutch pack clearance must be taken
before the elements are soaked in ATF.
28. Lubricate and fit the 3-4 OWC and end caps to
the C2 hub.
32. Apply petroleum jelly to the No. 5 needle bearing
and fit it to the C4 hub.
33. Remove the C2 clutch plates from the clutch cylin-
der.
34. Fit the thrust plate over the cylinder inner hub.
35. Engage the C2/C4 clutch hub assembly in the C4
clutch plates.
36. Install the C2 clutch plates.
37. Install the C3 hub and secure it with the circlip,
ensuring that the circlip is firmly seated in its
groove. 29. Align the tangs and fit the nylon thrust washer
onto the C4 hub.
30. Align and fit the C4 hub to the C2 clutch and the
OWC assembly.
31. Check the rotation of the C2 hub. While holding
the C4 hub, the C2 hub should rotate in the
clockwise direction and lockup in the anti-
clockwise direction when viewed from the C2 hub.
KAA5A0M0
KAA5A0N0
KAA5A0O0