10.2.4. Pumping of coupling and its executive cylinder

Pumping of the hydraulic drive of coupling


  1. Uncover the tank of brake fluid and if necessary bring liquid level to the required level.
  1. Give the union of pumping (3) and connect to it a device hose for pumping.
  1. Give compressed air to the device for pumping (5) and let's leave brake fluid before disappearance of bubbles then tighten the union.
  1. Install the special adapter on a cover of the tank of brake fluid and, holding a device hose for pumping on the union, pump over the tank within minute or time necessary in order that air bubbles rose to the surface.
  2. In conclusion check coupling work.

Pumping of the executive cylinder


For pumping of the main cylinder of coupling of RKPP it has to be removed.

  1. Connect to the union (1) of the giving tube of the executive cylinder a piece of a transparent hose with a diameter of 8 mm and 450 mm long.
  1. Completely press and release the release bearing (2). The piston of the executive cylinder has to remain in the domestic situation.
  2. Fill a hose with brake fluid on 350 mm and connect to it the manual pump.
  3. Create pressure necessary in order that the piston of the cylinder started and brake fluid began to move in the cylinder.

Do not allow a piston exit from the cylinder further of its full speed.

  1. Remove the pump and accurately press the piston against the stop. Let's leave liquids with air bubbles.
  2. Repeat the actions described in paragraphs 9 and 10 before disappearance in the coming-out liquid of air bubbles.
  3. After the end of pumping leave the piston in its domestic situation.