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The assembly and adjustment of the vacuum booster

Before assembly, all parts amplifier must be absolutely clean. If necessary, all the details of the amplifier, with the exception O-ring 27 covers the amplifier can be washed in clean gasoline and dried with compressed air. Keep the parts in gasoline should be the minimum time necessary. Assembly and adjustment is made in the sequence listed below. A. In the base case 4, insert the guide ring 10 and sealing sleeve 11, pre-lubricated with grease it CIATIM-221, GOST 9433-80. Two. With the help of the mandrel (Fig. 181) fix the position of the sealing cuff lock washer 12 (Fig. 172). Three. Screw the hull on the device. 4. The surface of the diaphragm 3 cover with a thin layer of talc and install it in the flange of the piston body 13, fixing ring 19. Five. Insert the diaphragm support ring 5. 6. Insert the envelope of the reference disk sectors, fixing their radial position of the fixing lugs washer 9. Sectors platter positioned so that sharp edge formed when cutting factory, were turned toward the locking washer. 7. Cover the surface of molybdenum disulfide powder of the central valve 8. Remove any excess powder by shaking the details. Eight. Put a washer on the valve and install a support for fixing the valve washer. 9. Put podsobranny node in the diaphragm. Then install the spring 20 and the support plate 6, insert through the holes in the valve and piston shaft 22. 10. Technological screw (Fig. 182), connect the enclosure to the piston rod, why screw the screw in the technology of the housing stock piston about 3 turns. Podsobranny node insert the base case, the working surface of piston lubricated with grease CIATIM-221. 11. Assemble the cover 1 (see Fig. 172) with a check valve body 25. 12. Install the return spring 23, pushing the diaphragm housing cover. 13. Convinced that the outer collar diaphragm correctly, without dxistortions is located between the sealing surfaces of the base, Put the connecting ring 2, lubricate its inner surface grease CIATIM-221, GOST 9433-80. 14. Install the top ring device to cover and uniformly compress the diaphragm between the lid and base. 15. Turn the ring to connect the base and cover. 16. Remove power from the device, remove the screw technology. 17. Install the unit on a special stand and move the adjuster In the pressure chamber to 0.67 kg/cm2. Then lubricate the threaded portion adjusting screw 17 sealants ANATERM-BV or ANATERM-6 protection from self and slowly screw the screw in the rod amplifier as long as the body starts to move a piston inside the amplifier. At this point, need to stop screwing and then unscrew the screw on the 1 and 3/4 turn. When turning the adjusting screw axial force on the adjusting bolt from the tool does not allowed. 18. Lubricate the special structure (see above) to protect against loosening the adjusting bolt 24 and screw it into the output shaft amplifier by setting the gap (0,35 ± 0,06) mm between the plane of the cover and end face of the bolt head (Fig. 183). Care should be taken to a special composition for the excess protection from self did not get to other parts of the amplifier. Adjustment of adjusting screws and bolts should be completed no later than 1 min after application of a special composition. 19. Insert the plunger 16 (see Fig. 172) into the housing 13 piston, screw to lock the clamping sleeve 14, install the air filter 15 and the protective cover. 20. Screw the threaded end of the pusher nut and fork. 21. At a special booth perform checksum verification amplifier for which: - Conduct a five-stroke follower amplifier, without feeding pressure. The course of the output shaft at the same time should be 30,5-33,0 mm; - Move to the check valve amplifier pressure 0.67 kg/cm2, - Take 5 seconds and then close the valve on the vacuum line. During the 15 pressure should not vary by more than 0.0035 kgf/cm2; - Move to the check valve amplifier pressure 0.67 kgf / cm attach to the pusher 36 kg load. The force on the output rod should be not less than 54 kgs. The difference moves the pusher and the output shaft should be between 1,65-2,16 mm. Notice. A device for measuring the force on the output rod amplifier must be included after the stem from the starting position moves to 2.8-3.3 mm; - Attach to the pusher force (270 5) kg, and the course of the output shaft limit in the range 3-30 mm. - Move to the check valve amplifier pressure 0.67 kgf / cm soak 5 seconds and then close the valve on the vacuum line. Within 7.5 seconds pressure should not vary by more than 0.01 kg / cm. In the absence of control and adjustment of the stand nn. 17 and 18 can be performed using the vacuum created in the intake pipe operating the engine at idle, and the need to use device (see Fig. 183). Control check of the amplifier (p.21) spend in the next volume. A. Secure the amplifier device. Two. Spend five-stroke pushrod amplifier without feed pressure. The course of the output shaft at the same time must be equal to 30,5-33,0 mm. Three. Collect power to the main brake cylinder. 4. Fixing the rod down the amplifier, set the pressure gauge 5 (Fig. 184) and stop the other findings in the master cylinder threaded plugs and gaskets. Five. Fill the brake fluid in the tank. 6. Loosen the stem and make the amplifier pumping installation using a pumping valve. 7. Attach to the pusher 50 kgf load. The pressure on the gauge should be at least 6.5 kgf / cm. Eight. Bring pressure to the vacuum booster check valve. 9. Attach to the pusher 36 kg load. The pressure on the gauge should be not less than 12 kgf / cm. Set the amplifier to the car in reverse order. After installation, bleed the system and properly adjust the brake pedal, as described in the relevant sections. Москвич-412 Москвич-412 Москвич-412 Москвич-412
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