GF46.25-P-3400A | Rack-and-pinion steering, function when steering | 18.3.08 |
MODEL 171.4, 203
with CODE (213) Speed-sensitive power steering
up to Model Year 08 /modification year 07
MODEL 209, 211 with CODE (213) Speed-sensitive power steering
MODEL 215, 220
MODEL 230 up to Model Year 08 /Modification Year 07
P46.20-2019-79
Illustrated on model 220, left wheel lock
P46.20-2020-79
Illustrated on model 220, right wheel lock
I Right working cylinder (left steer)
II Left working cylinder (right steer)
A Pressurized
B Unpressurized
C Readjusted pressure downstream of solenoid valve (Y10)
Y10 SPS [PML] solenoid valve
4a Stabilizer bar
4b Drive pinion
4i Pilot bushing
4j Rack
4k Rotary valve
When the steering wheel is turned, the drive pinion (4b) rests on the gear rack (4j). The rotary valve (4k) is twisted against the pilot bushing (4i) surrounding it via the stabilizer bar (4a) and thus changes the position of the control grooves relative to each other. The pressure oil flow now reaches the right working cylinder (left steer) (I) or the left working cylinder (right steer) (II) and causes the axial movement of the toothed rack (4j) to the right or left.
The oil from the unpressurized working cylinder is displaced. It flows back into the power steering pump reservoir via the open return flow grooves of the pilot bushing (4i).
Speed-sensitive power steering, function with vehicle stationary | |||
Speed-sensitive power steering, function at vehicle speeds 0-100 km/h when steering | |||
Speed-sensitive power steering, function at vehicle speeds >100 km/h when steering | |||
SPS electrically controlled centering, function | Model 171.4 | ||
Models 203, 209, 211, 215, 220, 230 |
Referenced documents
- gf4650p2400aa SPS electrically controlled centering, function
- gf4650p2400sk SPS electrically controlled centering, function
- gf4650p2500a Speed-sensitive power steering, function with vehicle stationary
- gf4650p2600a Speed-sensitive power steering at vehicle speeds 0-100 km/h when steering, function
- gf4650p2700a Speed-sensitive power steering at vehicle speeds >100 km/h when steering, function