SSANGYONG ACTYON 2006.03 Manual page 766

STEERING
1. OVERVIEW
When a driver turns the steering wheel, the front wheels are steered and the vehicle moves to
the desired direction.
However, there is a certain limitation to increase the steering efficiency only with the
mechanical methods. A steering system using hydraulic pressure has been introduced to
decrease the driver's steering effort while using the normal gear ratio.
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 control valve in the rack and 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.
2. SPECIFICATIONS
09-3
4610-01
4610-01
POWER STEERING
ACTYON 2006.03