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GWFLORID Maintenance Manual 106 4. Remove the dust cover. If necessary to replace the dust cover, replace it using the following steps. (a) Twist off the rod clevis. (b) Screw off the nut. (c) Pull out the split ring. (d) Pull out the dust cover. Removal of the vacuum booster with brake cylinder assembly is now complete. Vacuum booster with brake cylinder assem- 1. Install the brake cylinder assembly. Tighten the cover of the brake reservoir, place the outlet port of the brake reservoir against the master cylinder inlet, push the brake reservoir assembly into the master cylinder assembly, and then insert the cylindrical pin to complete the installation. Caution: Check and ensure the cleanliness of the reservoir outlet port and master cylinder inlet. Do not lose the sealing ring inside the master cylinder inlet. 2. Installation of the vacuum booster assembly. Install each part of booster using the following steps. (a) Install the check valve seat. (b) Install the check valve. (c) Install the dust cover. (d) Install the split ring. (e) Install the lock nut. (f) Install the rod clevis. 3. Installaion of the vacuum booster assembly and brake cylinder assembly. (a) Install the rectangular sealing ring, and then place the brake pump assembly into the front case’s housing. Pay attention when pushing the booster's push rod head into the first piston hole. (b) Put the two holes of the cylinder body’s flange surface into the front case bolts of the vacuum booster, and then tighten the nuts with a torque wrench. Tightening torque: 20-26 N·m 4. The installation of the vacuum booster with brake cylinder assembly is the reversed procedure of its removal. Hence no more elaboration will be provided here. Tightening torque of the four lock bolts on the brake pedal: 23±3 N·m Tightening torque of master cylinder outlet port rigid pipe: 15 N·m Rod clevis Nut Split ring Dust cover Elastic cylindrical pin Check valve Check valve seat Lock nut Rod clevis Split ring Dust cover Rectangular sealing ring First piston |