power steering SSANGYONG NEW ACTYON SPORTS 2013 Owner's Manual

12-114610-01
2) Steering Gear Linkage
Linkage assembly - gear & operation ball
joint
Bolt (100 ~ 130 Nm)
Nut (100~130 Nm)
Bolt (100 ~ 130 Nm)
Nut (100~130 Nm)
Bolt (100 ~ 130 Nm)
Pin 1.
2.
3.
4.
5.
6.
7.Nut
End assembly - tie rod
Boot kit - power steering gear box
Nut
SSPS module
Clamp - mounting
Rubber - MTG 8.
9.
10.
11.
12.
14.
15.

12-174610-01
Oil Change ▶
Open the power fluid reservoir cap and drain
the fluid completely with oil suction device. To
make it easy, turn the steering wheel to its
both ends several times.
Fill up the specified fluid into fluid reservoir
and bleed air from the steering system. 1.
2. Oil Level Check ▶
Place the vehicle on a level ground and start
the engine and let it run at idle speed.
Turn the steering wheel several times so that
the oil temperature reaches to normal
operating level (75~85˚C).
Place the steering wheel at straight ahead
direction.
Check the oil level in the power steering oil
reservoir. Adjust the oil level between MAX
and MIN. 1.
2.
3.
4.
If the difference between two measurements
is below 5 mm and the level is between MAX
and MIN level, it's normal. If it is over 5 mm,
bleed air from the system. Check the fluid level on a level ground with the
engine turned off. The fluid level should be
between the MIN and MAX marks on the
reservoir cap gauge.
below 5 mm
Engine idling Engine running
Oil typeS-PSF-3
Capacityapprox. 1ℓ (including
reservoir)

12-18
Air Bleeding ▶
Lift up the vehicle very carefully.
Turn the steering wheel to its both ends
several times and add the oil up to MAX line
in the steering oil reservoir.
Periodically crank the starting motor and turn
the steering wheel to its both ends without
any interruption.
Check the oil level again. If the oil level is
fluctuated, repeat the procedures from step 3
to step 5.
Start the engine.
Turn the steering wheel to its both ends until
any bubble can be found in the steering oil
reservoir.
Perform the test drive and check the steering
wheel for normal operation and noise.
If the oil level abruptly goes up, bleed the air
from the system again. 1.
2.
3.
4.
5.
6.
7.
8.
The air bleeding should be done after servicing
the power steering system and when the
difference between two measurements (cooled
and normal temperature) is prominent.
Max
Min
Normal Abnormal
If the air bleeding is not properly performed,
the life span of the power steering pump
may be shortened. -

12-194610-01
Oil Pump Pressure Check ▶
Unscrew the pressure line fitting in power
steering pump.
Install the pressure gauge between the
power steering pump and the power steering
oil pressure line.
Place the shift lever to neutral position. Apply
the parking brake.
Open the valve in pressure gauge. Start the
engine and let it run at idle speed.
Turn the steering wheel several times so that
the oil temperature reaches to normal
operating level. 1.
2.
3.
4.
5.
Before checking the pressure, check the oil
level and belt tension. Prepare the empty
container to collect the spilled oil during the
service. Check the oil pump pressure to locate any
defect in oil pump.
Fully close the valve in pressure gauge and
measure the oil pressure. 6.
Relief pressure
90 ± 3 bar
Oil pump
Steering gear box
To prevent internal damage, do not close
the gauge valve over 10 seconds.
Keep the oil temperature at proper range. -
-

12-20
Measure the oil pressure with the gauge valve
fully open. 7.
Pressure at no load
3 to 5 bar
If the pump pressure is in specified range, the
pump is normal. If not, replace the power
steering pump 8.
Turn the steering wheel right or left until it
stops with the engine idling and valve fully
open. 9.
Oil pressure78 to 83 bar
To prevent the internal damage, do not close
the gauge valve for over 10 seconds.
Keep the oil temperature at proper range. -
-

12-214610-01
1. SYSTEM DESCRIPTION
The power steering has been designed to make the wheel move more easily than in a manual steering
system. The hydraulic power assists the process utilizing hydraulic fluid. The fluid increases pressure in
the power steering pump and aids the movement of the steering mechanism. The power steering
system consists of pump, oil reservoir, rack and gear box. The power steering pump is a vane type and
delivers hydraulic pressure to operate the power steering system. The pressure relief valve in the pump
controls the discharging pressure. The rotary valve in the rack and the pinion gear directs the oil from the
power steering pump to one side of the rack piston. The integrated rack piston converts the hydraulic
pressure to linear movement. The operating force of the rack moves the wheels through the tie rod, the
tie rod end and the steering knuckle. Even though the hydraulic pressure cannot be generated, a driver
can steer the vehicle without power assist but it needs very high steering force. In this case, the
operating force of the steering wheel is conveyed to the pinion, and the movement of the pinion moves
the rack through the pinion gear combined to the rack gear.

12-22
2. SYSTEM LAYOUT
The steering pump is driven by the engine power through a belt. This pump circulates the power steering
oil from the reservoir -> steering pump -> oil supply pipe -> steering gear box -> oil return pipe ->
reservoir to perform steering operations
Return hose & tube
Steering pump &
reservoir
High pressure hose
Linkage gear box Steering wheel
Lower shaft Column & shaft
Return hose & tube
Steering pump &
reservoir
High pressure hose
Linkage gear box Steering wheel
Lower shaft Column & shaft
HPS model
SSPS model

13-34620-01
1. SPECIFICATIONS
Item Item Specification
SSPS solenoid valveRated voltage DC 12 V
Rated voltage 1.0 A
Resistance6.7 ±1 Ω
Power steering oil pump
(with SSPS)Operating temperature-40℃~150℃
Release pressure 90 bar
Displacement 9.3 cc/rev
Flow velocity 9.75~6 l/mn
Pulley sizeØ115
Pulley type 6 groove
Housing material Aluminium
Power steering fluid reservoir
(with SSPS)Fracture pressuremin 8kgf/㎠
Air leakage2 kgf/㎠×min
Cap open torque 9.8 to 14.2 Nm
Oil capacity FULL 550cc
Power steering gear box
(with SSPS)Gear type Rack & pinion type
Gear ratio 40.245
Fixed rack 3.78
Gear weight 12.800 kg
Steering angleInner36.2°
Outer32.4°

13-54620-01
1. OVERVIEW
The speed-sensitive power-assisted steering system can automatically adjust the boosts according to
the speed changes, automatically induct the high-speed or low-speed status, and relatively adjust the
reasonable steering boosts, enhance the operation precision, reduce the driving pressure of drivers. No
matter for steering, parking or reversing, it becomes much easier. The adjustable safety steering column
attached possesses the functions of electrically adjusting height and transverse position, has brought
much more abundant and comfortable spaces for legs, and has provided the great convenience to get in
or out the car.
The Speed Sensitive Power Steering (SSPS) unit controls the SSPS solenoid vale in steering gear box
to get proper power steering force.

13-6
Power steering gearbox &
solenoid valve for SSPS model
SSPS control unit
Installed view Unit components
It is installed at the bottom of the ECU inside the passenger's floor mat
foot protector cover and receives data related to the vehicle speed and
throttle position through the CAN communication and controls the
solenoid valves to obtain optimal steering force.
SSPS Solenoid Valve
Tie Rod End
Tie Rod
Bellows
SSPS Solenoid Valve
Valve Assembly
Feed Tube
Mounting Bracket
Cylinder Tube
Rack Housing
Adjusting Plug 1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
2. LAYOUT