Brake Drum: Service and Repair

REMOVAL
1) Hoist vehicle and remove wheel.
2) Remove brake drum screws (2 pcs).





3) Release parking brake lever.
4) Remove parking brake lever cover and loosen parking brake cable locking nut.





5) Remove back plate plug attached to the back side of brake back plate so as to increase clearance between brake shoe and brake drum.
Insert a screwdriver into plug hole till its tip contacts shoe hold down spring and push screwdriver in the arrow direction.
With this push, hold down spring is pushed up and releases parking shoe lever from hold down spring, resulting in larger clearance.





6) Pull brake drum off by using 8 mm bolts (2 pcs).






INSTALLATION

1) Before installing brake drum, to maximize brake shoe-to drum clearance, put screwdriver between rod and ratchet and push down ratchet as shown in figure.





NOTE: Left figure shows ratchet position where brake shoe-to drum clearance is maximum.





2) Put brake shoe hold down spring back to its original position as shown. (Put shoe hold down spring in place by moving shoe lever so that shoe lever comes to the side of shoe hold down spring.)
3) Install brake drum after making sure that inside of brake drum and brake shoes are free from dirt and oil.
4) Tighten brake drum screws.
5) Upon completion of all jobs, depress brake pedal with about 30 kg (66 lbs) load three to five times so as to obtain proper drum-to-shoe clearance.
Adjust parking brake cable.
6) Install parking brake lever cover.





7) Install wheel and tighten wheel nuts to specified torque.

Tightening Torque
(a): 85 Am (8.5 kg-m, 61.5 ft. lbs.)

8) Check to ensure that brake drum is free from dragging and proper braking is obtained. Then remove vehicle from hoist and perform brake test (foot brake and parking brake).