Steering Gear Box; Operation; When Steering Wheel Held At Straight Position; When Steering Wheel Turned (To The Right) - Suzuki Baleno Manual

1. Pin
2. Stub shaft (Rotor)
3. Torsion bar
4. Sleeve
5. Bearing
6. Pinion
7. Gear box
8. Rack
9. Ferrule
10. Valve case
Fluid flow when steering turned to the right.
P : Pump port
T : Tank port
R : Right cylinder port
L : Left cylinder port

STEERING GEAR BOX

The steering gear box consists of two sections: one including a cyl-
inder and the other a valve. Main components of the cylinder sec-
tion are a gear box, a rack and a tube and those of the valve section
are a valve case, a sleeve and a stub shaft. The sleeve is linked
with the pinion through a pin and the valve and stub shaft are inte-
grated into one unit. Then the pinion and the stub shaft are linked
to each other by means of the torsion bar.
Thus, when the stub shaft moves, the valve changes its position,
thereby switching the hydraulic passage from the pump to the cyl-
inder to help steering operation.
When turning the steering wheel feels heavy due to P/S fluid leak-
age or for some other reason (i.e., when in the manual steering
mode), the stub shaft and pinion are in direct linkage and the force
is output directly through the pinion and rack.

OPERATION

When Steering Wheel Held at Straight Position

When the steering wheel is not turned, the valve is held at the neu-
tral position by the torsion bar and the fluid from the pump flow
through the valve back to the tank. (See page 3B1-2.)

When Steering Wheel Turned (to the right)

Turning the steering wheel clockwise will cause the stub shaft to
Valve section
turn clockwise, twisting the torsion bar.
Then the valve is switched to allow the fluid pressure to be applied
to the cylinder which then pushes the rack.
Cylinder
As the rack moves, the pinion turns clockwise to actuate the torsion
section
bar which then causes the valve to return to the neutral position.
This is called the feed back operation of the power steering system.
1. Pump
2. Tank
POWER STEERING (P/S) SYSTEM 3B1-3