3.1.1.1. Pumping of a hydraulic drive of switching off of coupling

ATTENTION Watch to spilling working liquid of a hydraulic actuator of coupling on the painted surfaces. If it happened, immediately wash away liquid water.

NOTE Do not mix various brands of working liquids of a hydraulic actuator of coupling. Do not use repeatedly merged working liquid of a hydraulic actuator of coupling.

Fig. 3.2. Pumping of a hydraulic drive of switching off of coupling: 1–transparent tube; 2–cap key; 3–a glass vessel with brake liquid; 4–working cylinder

Any hydraulic system works normally if air is removed from it.

During pumping add only pure liquid recommended by the manufacturer. Never use repeatedly the liquid which has flowed out from a hydraulic drive of switching off of coupling.

If in hydraulic system liquids of various brands casually mixed up, remove from it liquid, wash out pure liquid of demanded brand and establish new sealing rings.

At continuous leakages of liquid from a hydraulic drive or air hit in it define the reason and a leak place, eliminate damage.

Before procedure of pumping uncover a tank of a hydraulic actuator of coupling.

Pump out liquid from the tank the sucking-away pump.

Uncover the union for air removal from the working cylinder of coupling and put on a vinyl hose the union.

Place other end of a vinyl hose in the container.

Several times slowly rock a coupling pedal.

At the pressed pedal of coupling unscrew the union, using the special adaptation to let out liquid.

Tighten the union for air removal to stop a liquid exit.

Again several times repeat pumping procedure until the tube will not leave only pure liquid.

Tighten the union for air removal.

Inhaling moment: 5,9–8,8 N · m.

Add liquid in a tank to MAX mark.

Establish a cover.

Check correctness of work of coupling.