Disconnect the pressure hose from the hydraulic pump and connect the following special tool to the gap.
- МВ990662: measuring fluid pressure in the system.
- МВ991548: adapter for measuring the pressure of the working fluid in the system (from the hydraulic pump).
- МВ991549: adapter for measuring the pressure of the working fluid in the system (from the hose side).
Remove air from the system, rotate the steering wheel several times with the vehicle stationary to raise the temperature of the working fluid in the system to 50-60°C.
The engine must be running at idle.
Disconnect the pressure switch connector, connect an ohmmeter to the switch connector.
Gradually closing the shut-off valve of the pressure gauge, increase the pressure in the system, then check whether the pressure in the system of the sensor-switch activates or not at the nominal value of its operation.
Rated value: 1.5–2.0 MPa.
Gradually open the shut-off valve of the pressure gauge and reduce the pressure in the system, then check whether the pressure in the system of the sensor-switch activates or not at the nominal value of its operation.
Rated value: 0.7–2.0 MPa
Disconnect the special tool (for pressure measurement) and secure the discharge hose with the rated torque.
Rated tightening torque: 57 + 7 Nm
Remove air from the system.