Magentis and Optima repair since 2000 of release
1. Engines
2. Greasing system
3. Cooling system
4. Control and decrease in toxicity
5. Fuel system
6. Ignition system
7. Coupling
7.1. Specifications
7.2. Pumping of hydraulic system of a drive of coupling
7.3. Coupling pedal
7.4. Main cylinder, tube and coupling hose
7.5. Main cylinder of coupling
7.6. Working cylinder of coupling
7.7. Casing and coupling disks
7.8. Search and elimination of malfunctions
8. Transmission
9. Power shafts, axes
10. Suspension bracket
11. Steering
12. Brake system
13. Body
14. Central air
15. Electric equipment
16. Electric circuits


7.6. Working cylinder of coupling



1. Remove a coupling hose, a valve plate, a spring, a pusher and a cover.
2. Remove dirt from an opening for the piston in the coupling cylinder.

3. Remove the piston and a cuff, submitting the compressed air through an opening for connection of a hydraulic tube.

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

Submit the compressed air slowly to exclude a razbryzgivaniye of brake liquid.



1. Check the working cylinder of coupling on absence of damages.
2. Check covers on absence of damages.

3. Measure internal diameter of the working cylinder of coupling. Measurement of internal diameter of the main cylinder of coupling carry out in three sections (in the basis, the center and top) in two perpendicular directions. 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



1. Before assembly grease with liquid for coupling the piston and diameter of boring of the cylinder and establish the piston assembled.

Liquid: brake DOT 3 liquid

2. Establish a coupling hose, a valve plate, a spring, a pusher and a cover.



1. Before installation grease the plug, a pin, a washer and a pin with a head and an opening under шплинт.

Greasing: CASMOLY L9508

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

«on a step back
7.5. Main cylinder of coupling
on the following page»
7.7. Casing and coupling disks