4WD SSANGYONG NEW ACTYON SPORTS 2012 User Guide

01-8
4WD
2WD
3) Sectional Diagram
Fluid pumpClutch pack
Double planetary
gear-set
Torque converter Valve body
Fluid pumpSingle planetary
gear-set
Clutch pack
Torque converter Valve body
Single planetary
gear-setDouble planetary
gear-set

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2) Mode “M” (Manual Shift Mode)
This allows the driver to define the highest possible gear by selecting "+" or "-" on the gear
selector when the lever is in the "M" position. When the lever is first moved to the manual "M"
position the transmission will select the lowest possible gear.
When maximum engine rpm is reached the transmission will upshift automatically regardless of
the driver selected limit. 4WD models with low range will not automatically upshift when low range
is selected.
1st gear position ▶
2nd gear position ▶
3st gear position ▶
4th gear position ▶
5th gear position ▶
6th gear position ▶Use on a rugged road, mountain path and steep hill. Engine braking effect on steep hill is
available. -
Use on a long and gentle slope. 2-1 automatic kickdown shift is available. Engine braking
effect is available. -
Use on a long and gentle slope. 3-2 and 2-1 automatic kickdown shift is available.
Engine braking effect is available. -
Use on a long and gentle slope. 4-3, 4-2 and 4-1 automatic kickdown shift is available. -
5-4 and 5-3 automatic kickdown shift is available. -
6-5 and 6-4 automatic kickdown shift is available. -
Kickdown Function
If you need to accelerate rapidly, depress the accelerator pedal completely to the floor.
Then, a one- or two-lever gear will automatically be engaged. This is called the Kickdown
function.

01-16
4. LIMP HOME MODE
In case of transmission malfunction ▶
If a serious fault occurs in the automatic transmission, the TCU enters the limp home
mode to secure safe driving and protect the automatic transmission.
As power is no longer supplied to the solenoid, the current basic function (P, R, N, D) is
maintained and the 4th gear can be maintained only by the operation of the hydraulic
system without electrical operation.
The ECU communicates with other electric modules with CAN. If a serious fault occurs, the
transmission automatically enters the limp home mode for service.
The TCU monitors all factors which can affect to the performance of the transmission and
diagnose the system according to OBD II regulation. 1.
2.
3.
4.
In case of overheated transmission ▶
The TCU enters the limp home mode when the batter voltage drops below 8 V.
If the transmission is overheated, the shift pattern is changed to the hot mode to cool the
transmission more efficiently.
While the transmission is overheated, the selector lever symbol and engine temperature
warning lamp on the instrument cluster blink until the transmission is cooled down to the
normal operation temperature. If the transmission is excessively overheated, the gear
cannot be shifted but remains in the neutral position. 1.
2.
3.
Towing the vehicle with A/T ▶
The best way to transport the vehicle is to load it to a truck and transport it, especially if the
vehicle is 4WD.
If towing the vehicle with the propeller shaft connected, the transmission or oil pump of
transfer case may malfunction, resulting in internal damage due to poor lubrication. -

02-93170-01
Ring - Snap
Ring - Snap
Bearing - Ball
Pinion assembly - Main drive
Bearing - Needle roller
Ring - Synchronizer
Ring - Snap
Sleeeve - Synchronizer
Key assembly - Synchronizer
Hub - Synchronizer
Ring assembly - Triple cone
Gear assembly - 3rd speed
Bearing - Needle roller
Shaft - Main
Gear assembly - 2nd speed
Bearing - Needle roller
Ring assembly - Triple cone
Hub - Synchronizer
Sleeeve - Synchronizer 1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.Ring assembly - Triple cone
Gear assembly - 1st speed
Sleeve - 1st gear
Bearing - Double angular ball
Ring - Snap
Gear - Main shaft 5th
Spacer
Gear - Main shaft 6th
Sleeve - Reverse gear
Bearing - Needle roller
Gear assembly - Reverse speed
Ring assembly - Triple cone
Hub - Synchronizer
Sleeeve - Synchronizer
Stopper - Synchronizer key
Bearing - Ball
Flange assembly - Companion
O-ring
Nut - Locking (4WD: 245.1 ~ 264.7 Nm,
2WD: 117.6 ~ 137.2 Nm) 20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.
36.
37.
38.

05-33310-00
1. SPECIFICATION
Description Specification
Structure Universal joint with yoke arm and
spider
Number of spiders Front Part time T/C Two
Rear Three
Runout Max. 0.3mm
Unbalance Max. 18 g.cm / 4,500 rpm
Dimension of front
propeller shaft (Length x
Dia.) (mm)A/T 552.3*Φ63.5 (Compressed)
M/T 603.8*Φ63.5 (Compressed)
Dimension of front
propeller shaft (Length x
Dia.) (mm)2WD Front1136.0*Φ63.5
Rear743.*Φ63.5(Compressed)
4WD(M/T) Front785.1*Φ63.5
Rear743.*Φ63.5(Compressed)
4WD(A/T) Front836.8*Φ63.5
Rear743.*Φ63.5(Compressed)
2. TIGHTENING TORQUE
Fastener Tightening torque
Mounting bolts for front/rear axle 66.7 ~ 73.5Nm
Mounting bolts for T/M and T/C 79.4 ~ 87.2Nm
Mounting bolts for center bearing 78.4 ~93.1Nm

07-4
Side View Rear View
1. OVERVIEW
By using the planetary gear sets, two-gears shift type part time transfer case achieves direct
connection when selecting 4WD "HIGH" and 2.48 of reduction gear ratio when selecting 4WD
"LOW". The silent chain in transfer case transfers the output power to front wheels.
The simple operation of switches on instrument panel allows to shift between "2H" and "4H" easily
while driving (for 4L: stop vehicle first). The warning lamp warns the driver when the system is
defective.
Front Rear

07-53240-01
Operation ▶
Description Mode Conditions
Driving
mode2H 2 Wheel drive
(rear wheel)Rear-wheel drive mode. This is used under
normal or high-speed driving conditions on
public roads or highways.
4H 4 Wheel drive
(high speed)This is used under sandy, muddy or snow-
covered road conditions
4L 4 Wheel drive
(low speed)This is used for maximum traction.
When cornering with low speed in 4WD
condition, there could be tire dragging, some
mechanical shocks and resistances in
vehicle’s drive train. These are normal
conditions due to internal resistance in the
drive train when the 4WD system is properly
working
Mode change2H←4H2 Wheel drive
↔4 Wheel driveShifting is possible while driving at the speed
of 70 km/h or less
2H,
4H↔4L2 Wheel drive,
4 Wheel drive (high
speed)
↔4 Wheel drive
(low speed)For Automatic Transmission:
For Manual Transmission:
Stop the vehicle on level ground and
move the gear selector lever into the
“N” position. Turn the switch to the
desired position. ·
Stop the vehicle on level ground and
move the gear selector lever into the
“N” position. Then turn the switch to
the desired position while depressing
the clutch pedal. ·
To make the mode change easily, stop
the vehicle on level ground and turn the
mode switch to the desired position and
move the shift lever to "N"-"R"-"N" while
depressing the brake pedal.

07-8
3. SYSTEM LAYOUT
Indicators ▶
4H: 4WD HIGH indicator ON
4L: 4WD LOW indicator ON
2H: Indicator OFF
System failure: 4WD CHECK
warning lamp ON 4WD mode switch ▶
4H: 4 Wheel drive, high speed
4L: 4 Wheel drive, low speed
2H: 2 Wheel drive
TCCU
Solenoid valve

07-93240-01
4. IWE LOCKING HUB SYSTEM
1) Overview
The vacuum locking hub uses the IWE (Integrated Wheel End) system, and in this system, the
vacuum is generated only within the hub actuator.
It is structured to transmit power to the front section after the actuator hub is engaged following
the release of vacuum from the drive shaft end gear and the hub end gear
Locking hub actuator
Locking hub actuatorVacuum
solenoid valve
for IWE
Vacuum
pumpBooster
Electric
signalTo atmosphereTCCU Operating Process
Vacuum generation process in front hub actuator
Hub actuator (FR)
Hub actuator (FL) Vacuum pump
TCCU
to atmosphere to atmosphere
Vacuum solenoid valve
4WD mode
switch

07-10
2) Vacuum System Related to 4WD
During 2WD mode, the vacuum
pressure from vacuum pump is
continuously transmitted to the
locking hub system.
This vacuum pressure pulls in
the locking hub actuator so that
it will not be engaged with the
front end hub gear.
22WD (applying vacuum pressure to hub
actuator) The vacuum pressure pulls in the
locking hub actuator so that it will not be
engaged with the front end hub gear.The vacuum pressure is released from
the hub actuator. At this time, the front
hub end gear is engaged.
tmosphere
(in 4WD
mode) Hub actuator (LH)Hub actuator (RH)
In 4WD mode, the TCCU blocks the transferring
of vacuum pressure from vacuum pump to
locking hub by supplying the power to solenoid
valve.