Removal and Installation
REMOVAL1. Loosen wheel nuts, jack-up vehicle, support it with rigid racks, and remove wheel.
2. Release parking brake.
3. Remove brake drum from brake assembly.
NOTE:
- If it is difficult to remove brake drum, remove adjusting hole cover from drum, and then turn adjuster assembly pawls using a slot-type screw-driver until brake shoe separates from the drum.
- If brake drum is difficult to remove, drive it out by installing an 8-mm bolt into bolt hole in brake drum.
4. Hold hold-down pin by securing rear of back plate with your hand.
5. Disconnect hold-down cup from hold-down pin by rotating hold-down cup.
6. Disconnect lower shoe return spring from shoes.
7. Remove shoes one by one from back plate with adjuster.
CAUTION: Be careful not to bend parking brake cable excessively when removing brake shoes.
8. Disconnect parking brake cable from parking lever.
9. Unscrew the brake pipe flare nut and disconnect brake pipe.
10. Remove hub.
11. Remove brake assembly.
12. Remove the bolts installing wheel cylinder on back plate, and remove it.
INSTALLATION
1. Install wheel cylinder on back plate, and tighten bolts.
2. Clean back plate and wheel cylinder.
3. Apply grease to portions indicated by arrows in Figure.
4. Apply grease to adjusting screw and both ends of adjuster
5. Connect upper shoe return spring to shoes.
6. Connect parking brake cable to parking lever.
7. While positioning shoes (one at a time) in groove on wheel cylinder, secure shoes.
8. Fix shoes by connecting hold-down cup to hold-down pin.
9. Connect lower shoe return spring.
10. Set the outside diameter of brake shoes less than 0.5 to 0.8 mm (0.020 to 0.031 inch) in comparison with the inside diameter of brake drum.
11. Match the holes on hub and drum and install drum on hub.
12. Install hub.
13. Connect brake pipe, and tighten brake pipe flange nut.
14. Install shoes.
15. Install brake drum.
16. After installing brake assembly, bleed air from brake line.