12.9. A back brake drum

Removal

PERFORMANCE ORDER

1. To lift a back part of the car and to fix on supports. 2. To remove a corresponding back wheel. 3. To unscrew screws, крепящие a brake drum to a nave. 4. To check up that the manual brake is completely released and to remove a brake drum from the car. 5. The drum can badly act in film from a nave in connection with corrosion of a nave or because it is kept brake колодками. 6. In the first case for removal of a drum from a nave to knock on drum perimetre with a plastic hammer or wooden киянкой. 7. In the second case to check up that the manual brake is completely released and to execute following actions. 8. Completely to weaken a regulator of a cable of a manual brake, to receive the maximum deflection in a cable. 9. To remove a stopper from a back part of a brake board (the stopper is usually painted by dark blue colour) and, using a screw-driver to move the lever of a manual brake to brake колодке against the stop (E – position of a reference point of a stop of the lever of a manual brake). 10. Release the lever of a manual brake. 11. It will allow to take away brake pads from a brake drum therefore the drum will easily act in film from a nave.

Check

PERFORMANCE ORDER

1. Being careful to clear an internal surface of a brake drum of a brake dust and a dirt. 2. To clear an external surface of a brake drum and to check up on obvious signs of deterioration or damage, presence of cracks round apertures under bolts of fastening of a wheel. If necessary to replace a drum. 3. To check up an internal part of a brake drum. Insignificant development of a drum from action pads is the normal phenomenon. 4. To measure an internal working surface of a drum in several places. To compare results of the received measurements. 5. If results differ from each other, means, the drum has the oval form. 6. If the measured maximum size of internal diameter of a drum is in admissible limits it it is necessary перешлифовать. 7. If deterioration of a drum exceeds admissible limits, it is necessary to replace brake drums on both back wheels.

Installation

PERFORMANCE ORDER

1. At installation of a new brake drum to use solvent for removal from it a protective film. 2. If necessary, to reduce length of an adjusting lath brake pads, rotating an adjusting wheel of a lath. 3. To check up that the lever of a manual brake is established opposite to edge brake pads and that working surfaces of a brake drum and a nave pure and dry. 4. To establish a brake drum on a nave and to fix screws, tightening their demanded moment. 5. Some times to press a brake pedal, to put in action the mechanism of adjustment of a backlash brake pads. 6. To adjust a cable of a manual brake. 7. To establish a wheel and to lower the car.