GF46.50-P-2500GZ Speed-Sensitive Power Steering, Function With Vehicle Stationary

GF46.50-P-2500GZ Speed-sensitive power steering, function with vehicle stationary

Component Identification:

Vehicle speed v = 0 km/h
The SPS [PML] solenoid valve is energized to a maximum and as a result closed against the force of the integrated pressure spring. The pressure ratios in the reaction chambers are identical, since the pressure oil supply is stopped. No force is exerted on the reaction balls (4) and no additional moment is produced on the v-shaped surfaces of the rotary slide (12).

The steering turns easily because the steering moment which the driver must apply to overcome the force of the torsion bar (10) is very low. The oil passes virtually unpressurized via the constant constriction orifice (8) to the supply reservoir of the power steering pump.