Fill in in a coupling hydraulic actuator tank working liquid to the maximum mark and you watch that its level did not go down during operation performance. Remove a protective cap from the union for pumping on the main cylinder (fig. 4.5)
and put on a hose the union. Lower other end of a hose in the brake fluid poured in a transparent glass vessel. Slightly turn out the union for pumping, press against the stop a pedal of coupling and release it. Repeat this operation several times, an exit of bubbles from a hose will not stop yet. Wrap the union and put on it a cap. To execute the same operation on the working cylinder. After the end of pumping of a hydraulic actuator of coupling be convinced of accurate work of a hydraulic actuator and the correct gear shifting in the transmission.
During pumping you watch liquid level in a hydraulic actuator tank, without allowing an exposure of its bottom. The end of a hose for pumping has to be constantly shipped in liquid.