How to pump the power steering in a car

The power steering is the necessary device of any truck, which greatly facilitates the management. If the hydraulic booster is defective, then any turn of the steering wheel requires a lot of effort. It seems to be a small mechanism, but how easy is the driver's work.

How to pump the power steering, and also for what it is needed, and is described in this article.

GUR: device and functions

The power steering is a hydraulic system that is part of the steering mechanism and facilitates the control of the machine.

The main functions of the power steering :

• Stable preservation of a given direction;
• Reduction in labor costs, which the driver applies to change the direction of the wheels;
• The presence of a stable connection between the wheel and the wheels.

The GUR includes the following systems and elements:

• The distributor responsible for controlling the flow of liquid in the system's tanks;
• Hydraulic cylinder, which is responsible for the transformation of the pressure of the fluid into the coordinated work of the rod and piston;
• Pump, which is designed to maintain the established head and fluid flow;
• Power steering fluid;
• Connection hoses combine the details of the system;
• The electronic unit regulates the operation of the hydraulic booster.

Common failures of the power steering

How to pump the power steering, we will discuss below, but for now consider some typical problems and solutions for the GRU system:

1. Unstable movement of the machine on the road, you need to periodically adjust the direction of the car with additional movements of the rudder.

Possible causes and solutions:

• The presence of the free wheeling of the steering wheel - if it exceeds the permissible threshold, adjustment is required;
• Wear of the helical pair of the steering device, if there is wear, then the screw pair must be replaced.

2. Damage to the pump filter, or littering: air has entered the hydraulic system, signs of this fact: muddy oil and the presence of foam in the tank. To solve the problem, it is necessary to flush and pump the system, then change the filter.

Boring of GUR on KAMAZ

In this part of the article we will talk about how to pump the power steering on KAMAZ. The air that remains in the hydraulic system elements after the oil change procedure may cause the power steering to malfunction. To properly pump the system, you need to do the following:

• Using a jack, fix the front wheels of the car in the air;
• Unscrew the allowance valve, which is located on the steering mechanism ;
• Turn the steering wheel to the end to the left;
• Fill the pump with new oil;
• Start the engine and fill the power steering tank with oil at the smallest turns until the air bubbles from the hoses disappear;
• Fix the intake valve on the steering device;
• Turn the steering wheel to the end to the right, then return to the left and again loosen the intake valve - to exhaust the air, and screw back;
• Perform the last described procedure until the moment when a clean oil starts to come out of the valve.

How to pump the power steering on the "Gazelle", we will describe below, and in the meantime we will consider the process of changing the GUR fluid.

Change the power steering fluid

The fluid in the GUR system is required to be changed in case of contamination, as well as after a six-year use of the machine. How to do this simple procedure?

1. First of all, it is necessary to unscrew the pressure hose that leads to the steering device, while keeping the nut from turning.
2. From the power steering system, it is necessary to bleed the fluid without starting the engine, turn the steering wheel to the right and left until it stops, until the liquid from the pressure hose stops flowing. Then reattach the hose to the pump.
3. Fresh liquid fill the system.
4. Start the engine. At this time, the liquid will leave and distribute through the system. Fill the system with liquid until the level is not the same.
5. Bleed the GUR system.

The fluid in the hydraulic booster is an oil of the PSF type, intended for the GUR.

The hydraulic fluid must have the following properties:

• Oil temperature is 110 degrees Celsius;
• Presence of additives to improve the quality of work under pressure;
• Constant viscosity at various loads;
• Absence of foam;
• Prevention of rust.

How to pump the power steering on the "Gazelle"

Prorolling of the GUR system by car "Gazelle" is required in the following cases:

• When penetrating the air system;
• After the repair, which was accompanied by a depressurization of the system.

The procedure for removing the system from the air:

1. Fill the power steering system with hydraulic fluid.
2. Lock the handbrake in the up position, place the brake stops under the rear wheels of the machine. The front of the machine is raised.
3. Set the steering wheel to the upright position. Start the engine.
4. Turn the steering wheel to the right. At this time, bubbles of air will form in the fluid reservoir.
5. Turn the steering wheel all the way to the left to exit the hydraulic system of air debris.
6. Repeat the procedure until the air bubbles stop appearing in the tank. If necessary, add the liquid to the maximum level.

With such simple procedures you will extend the life of the GUR system on your car and enjoy driving for a long time.