For checking the health of the brake system pressure regulator-2104/05/07, it is necessary to place the vehicle over the pit or lift on the lift.
The pressure regulator on the rear axle is then removed. Under the cover is a peat connection and a piston of the pressure regulator. If there's a lash under the cover, the piston is likely to be a worker. If there is no lubrication, it is necessary to clean the piston from the dirt and ask the assistant with an effort to press the brake pedal. If you see the movement of the piston relative to the enclosure, the regulator is operational.
If the brake does not move when the brake is applied, it is rusting to the shell and the regulator needs to be replaced. If the piston is working, the lubricant (type DT-1, 5-6 grams) should be updated and the cover should be installed.
