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Brake Cylinder rear brake
| Fig. 8.21. Details of the wheel brake cylinder 1 - Bellow; 2 - piston; 3 - sealing lip; 4 - spring; 5 - cylinder body; 6 - bleed screw; 7 - cap
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Details of the brake cylinder shown in Fig. 8.21.
Removal, repair and installation of brake cylinders workers Removing the brake cylinder of the working procedure is as follows: - Remove the brake drum;
| Fig. 8.12. Details of the drum rear brakes: 1 - the brake pads; 2 - a spring wedge; 3 - lower return spring; 4 - the upper return spring; 5 - the parking brake lever; 6 - a spring; 7 - a spring plate; 8 - tension spring; 9 - spacer strip; 10 - to take stock of the wedge pads; 11 - brake cylinder; 12 - a bolt with hexagon socket; 13 - brake board; 14 - pin; 15 - plug
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- With the help of pliers, disconnect the two brake pads upper return spring 4 (see. Fig. 8.12); - Print the upper ends of the brake pads of the slots in the piston cylinder; - Unscrew the cover of the master cylinder reservoir, close the neck of the polyethylene, and then screw the cap back to get a tight seal and thereby minimize the loss of brake fluid, or press a hose brake system, the closest to the cylinder; - Clean the surface of dirt around the nozzle of the cylinder and unscrew the union nut. Carefully remove the pipe from the cylinder and plug the tape, or close both openings to prevent dirt from entering; - On the reverse side of the brake shield, unscrew two bolts of fastening of the working cylinder and remove the cylinder. Repair of the cylinder using the following procedure: - Clean the working cylinder from dirt and dust; - Remove the rubber anthers 1 (Fig. 8.21) from the ends of the cylinder body;
A WARNING Keep the brake linings do not hit the brake fluid. |
- Piston 2 must come out under the action of the spring 4, but if it does not, then tap the end of the cylinder by a wooden block or remove the nipple 6, and air is supplied at low pressure (for example, by foot pump) into the hole nozzle, squeeze the pistons; - Check to see if the surface of the piston and cylinder bores for burrs or signs of direct contact of metal. If there is, replace the cylinder assembly; - Remove the piston sealing cuff 3 and install new, taking them from the repair kit, pre-lubricated with clean brake fluid; - Dip pistons with clean brake fluid, then set the spring 4 into the cylinder; - Rotational motion paste pistons into the cylinder; - Put anthers, tighten the fitting 6 and replace the cap 7; - Check the movement of each piston in the cylinder body. They should be easy to navigate. Cylinder installation procedure is as follows: - Clean the mating surfaces of the brake shield and the wheel cylinder; - Dissolve the top of the brake pads and replace the cylinder;
NOTE Mount the sealing cuff on the pistons so that the ends of larger diameter turned inside the cylinder. |
- Connect the brake pipe and profit union nut; - Screw the two mounting bolts of the wheel cylinder and tighten to 10 N ?� m; - Fully tighten the coupling nut of a brake tube; - Remove the clip from the brake hose or polyethylene tank of the main cylinder; - Replace the piston cylinder and the brake pads with a screwdriver, set the upper return spring; - Set the brake drum; - Check brake fluid level in the master cylinder reservoir; - Bleed the brake hydraulic system by pumping. If the loss of brake fluid were minimal, then bleed the only appropriate brake cylinder.
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