db57d230

8.5. Working cylinder of coupling

1 – hollow connecting bolt;
2 – laying;
3 – connector;
4 – valve plate;
5 – spring;
6 – working cylinder of coupling;
7 – the union for removal of air;
8 – returnable spring;
9 – piston;
10 – cover;
11 – pusher;
12 – case of the working cylinder of coupling;
13 – the union for removal of air;
14 – cover;
15 – pusher;
16 – hydraulic tube.

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.
3. Remove the piston and a sealing ring (cuff), giving compressed air through an opening for connection of a hydraulic tube.

Prevention

Close an opening of the working cylinder pure rags to catch the piston which is pushed out by compressed air.



Check


PERFORMANCE ORDER
1. Check the working cylinder of coupling for absence of damage.
2. Check covers for absence of damage.
3. 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.

Gap: 0,15 mm

Prevention

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.



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 brake fluid

2. 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: MOLYWHITE TA No. 2

2. Install the cylinder of switching off of coupling and connect to it a hydraulic tube.