9.7. Working cylinder of coupling

Removal

 PERFORMANCE ORDER

  1. Disconnect a hydraulic tube of coupling.
  2. Turn out bolts of fastening of the working cylinder of coupling.

Check

 PERFORMANCE ORDER

  1. Clear the dismantled details in solvent and blow all details and channels compressed air.
  2. Check the working cylinder of coupling and covers for absence of damage.

Dismantling

 PERFORMANCE ORDER

  1. Pick up the phone, a valve plate, a spring, a pusher and a cover.
  2. Remove dirt from an open opening for connection of a hydraulic tube.
  1. Remove the piston and a sealing ring (cuff), giving compressed air through an opening for connection of a hydraulic tube.
  1. Close an opening of the working cylinder pure rags to catch the piston which is pushed out by compressed air.
  2. For an exception of spraying of brake fluid give air slowly.

Check

 PERFORMANCE ORDER

  1. Check the working cylinder of coupling for absence of damage.
  2. Check covers for absence of damage.
  1. Measure the internal diameter of the main cylinder of coupling. If the gap between the piston and the cylinder exceeds admissible value, replace the main cylinder and / or the piston assembled.

You take measurement of internal diameter of the main cylinder of coupling in three sections (in the basis, the center and top) in two perpendicular directions. Gap: 0,15 mm.

Assembly

 PERFORMANCE ORDER

  1. Before assembly grease with liquid for coupling the piston and diameter of boring of the cylinder and install the piston assembled. Liquid: DOT 3 or DOT 4 brake fluid.
  1. Establish a valve plate, a pusher and a cover.

Installation

 PERFORMANCE ORDER

  1. Before installation grease the plug, a pin, a washer and a pin with a head and an opening under the forelock. Lubricant: CASMOLY L9508.
  1. Install the cylinder of switching off of coupling and connect to it a hydraulic tube.