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11.13.2.2. Main brake GMF cylinder

Main brake GMF cylinder
1 – cylinder,
2 – consolidation of a popolnitelny tank,
3 – brackets of fastening of a popolnitelny tank,
4 – popolnitelny tank,
5 – cover of a popolnitelny tank
(with the sensor of level of brake fluid),
7 – spring,
8 – spring emphasis,
9 – sealing ring of secondary
piston,

10 – restrictive washer,
11 – secondary piston,
12 – sealing ring
primary piston,
13 – lock ring,
14 – spring plug,
15 – spring,
16 – spring emphasis,
17 – primary piston,
18 – lock ring

PERFORMANCE ORDER
1. Remove the main brake cylinder.
2. Fix the main brake cylinder in a vice with soft sponges.
3. In the presence unscrew valves of adjustment of pressure from the basis of the main brake cylinder.
4. Using a screw-driver edge as the lever, remove a sealing ring from an end face of the main brake cylinder.
5. A wooden or plastic stick press primary piston into the main brake cylinder and in this position of the piston insert a steel core with a diameter of 3 mm through an opening of installation of a nutritious tank into the main brake cylinder.
6. Take a lock ring from the channel of the main brake cylinder.
7. Take the steel core with a diameter of 3 mm fixing the piston in the pressed situation.
8. Take primary piston from the main brake cylinder for what turn the main brake cylinder and knock with it about a board.
9. Give to the main brake cylinder air under low pressure through an opening for installation of a nutritious tank and squeeze out the secondary piston from the main brake cylinder.
10. Clear all details of the main brake cylinder in pure brake fluid or methyl alcohol and check their state.
11. Check pistons and the channel of the cylinder for existence of scratches and pointed corrosion.
12. At wear of the cylinder replace the main brake cylinder assembled.
13. Grease the channel of the cylinder with a thin layer of pure brake fluid, then fix the cylinder in horizontal position in a vice with soft sponges.
14. Using details of a repair kit, remove a stopper from the end of an auxiliary tube and insert a short part of a tube into the canal of the main brake cylinder.
15. Using a wooden or plastic stick, push out a repair kit of details from a tube to the canal of the main brake cylinder.
16. A stick press primary piston and, using a steel midstream with a diameter of 3 mm fix the piston in the pressed situation.
17. Install a new lock ring in the channel of the cylinder. Check that the lock ring accurately was established in a flute of the cylinder and the piston freely moves in the cylinder.
18. Press primary piston and take the steel core holding the piston in the pressed situation.
19. Establish a new sealing ring on an end face of the main brake cylinder.
20. In the presence screw in valves of adjustment of pressure.
21. Install the main brake cylinder.