Remove the wheel and hub cap using the tool shown in Figure 411, although a screwdriver will do.

Remove cotter pin 2 (figure 412), locking nut and remove the nut.
Figure 412. Rear wheel hub: 1 - hub cap; 2 - cotter pin; 3 - shaped washer; 4 - adjusting nut; 5 - washer; 6 - outer bearing; 7 - outer bearing race; 8 - brake drum with hub; 9 - outer bearing race; 10 - inner bearing; 11 - oil seal
Unscrew the hub nuts and remove the washers.
Remove the brake drum together with the outer bearing.
Place the drum in a vice and knock out the rear bearing and seal. Knock out the bearing race from the drum.
Install new outer bearing races and grease the new bearings. Insert the inner races and press them flush with the edge of the seal. Catch any grease that squeezes out.
Place the brake drum on the hub axle. On the outside of the drum, install the parts shown in Figure 412.
Adjust the bearing clearance:
- Tighten the nut firmly, rotating it in different directions with the drum, this is necessary to install the bearings in the cages. Loosen the nut again.
- Tighten the nut so that you can still move the nut washer with a screwdriver, as shown in Figure 413.
- In this position, put on the castle nut and insert a new cotter pin. If the cotter pin cannot be inserted, the nut should be slightly tightened, but the washer under the nut must move.


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