We pump the power steering system after depressurization associated with the repair of its individual elements, and with a decrease in the efficiency of the system due to air entering it.
Before pumping, it is necessary to eliminate the cause of air ingress into the system.
Pumping is performed in the following sequence.
1. Turning the steering wheel to the left until it stops, open the cover of the power steering reservoir and add working fluid to the reservoir to the MIN·mark.
2. Start the engine. We check the fluid level in the tank when the engine is running at medium speed. Top up if necessary up to the MIN·mark.
3. Turn the steering wheel left and right several times, but not all the way, making sure that the level of the working fluid in the tank does not fall below the minimum allowable level.
4. We return the steered wheels to the position of rectilinear movement and let the engine run for another 2–3 minutes.
5. We check the operation of the hydraulic booster when the car is moving.
Normal operation of the hydraulic booster should not be accompanied by noise.
6. Check the liquid level in the tank again, as indicated in paragraphs 1 and 2.
After warming up and stabilization of the temperature of the working fluid, its level should be at the MAX mark, and in a cold state it should not fall below the MIN·mark. If necessary, add fluid up to the MIN·mark.