Fig. 10.18. Nave of a back wheel and brake mechanism of drum-type type: 1–an axis of a back wheel of the car which has not been equipped with ABS; 2, 15, 16 – sealing rings; 3–brake mechanism of drum-type type; 4–washer; 5–bolt; 6–fixing шплинт; 7–protective cap; 8–blocking ring; 9–nut; 10-persistent washer; 11-external bearing; 12-brake drum; 13-ABS sensor rotor; 14-internal bearing; 17-an axis of a back wheel of the car equipped with ABS

Bearings of a nave 11 and 14 back wheels are established in back brake to a drum/nave, or back brake to a disk/nave (fig. 10.18 or 12.17) .

Fig. 12.17. Support of the back brake mechanism: 1–a directing finger; 2–protective cover; 3–holder of a support; 4–dustproof cover; 5–piston; 6–cuff; 7–support; 8–самоконтрящиеся bolts; 9–pumping valve; 10-cap

Replacement make in the following order:

– Will hang out and fix on basic racks a back part of the car;

– remove back wheels and release the hand brake;

Fig. 10.19. Removal of a cover from the central part of a brake drum

– using the VW637/2 adaptation or a screw-driver, uncover the central part of a brake drum or a disk (fig. 10.19) ;

– take fixing шплинт and remove a blocking ring;

– unscrew a nut and remove a persistent washer;

– on back brakes of drum-type type turn a brake drum so that openings for bolts of fastening of a wheel settled down at an angle 45 ° from the vertical plane;

– release brake shoes for what insert a screw-driver through a forward top opening for a bolt of fastening of a wheel and move up a wedge;

– on disk back brakes remove a brake support and, using a soft wire, suspend it to a rack;

– remove a brake drum or a disk. If necessary use a universal stripper;

– wipe the internal bearing and a sealing ring;

– take from a nave an internal ring of the bearing;

– a copper drift beat out from a nave external rings of the bearing. In order to avoid a distortion of the bearing establish a drift evenly around;

– clear seats for bearings in a nave and on a pin;

Fig. 10.20. Installation of external rings of the bearing by the VW-432 adaptation

– using the VW-432 adaptation, press external rings of bearings in a brake drum or a brake disk (fig. 10.20) . In the absence of the adaptation press external rings of bearings, using a tubular opravka;

– put in a cavity of the internal bearing lithium greasing and establish it on a pin;

– put greasing on working edges of a new sealing ring and establish it in a nave;

– fill a nave with lithium greasing and establish on a pin;

– establish the external bearing and a persistent washer then wrap manually a nut of fastening of a nave;

– turn a nave for installation of bearings;

Fig. 10.21. Check люфта bearings

– tighten a nut to a contact of a persistent washer. Люфт the bearing it is adjusted correctly if a persistent washer it is possible to move a screw-driver edge in different directions (fig. 10.21) ;

– establish a blocking ring and insert new шплинт;

– fill a cover of the central part of a nave with greasing and establish a cover into place;

PREVENTION In order to avoid contact of bearings to water the cover should not be crumpled or deformed.

– further installation is made in sequence, return to removal.