Brake linings contain asbestos, which has been determined to be a cancer-causing agent. Never clean the brake surfaces with compressed air. Avoid inhaling dust from any brake surface. When cleaning brake surfaces, use a commercially available brake cleaning fluid.
REMOVAL & INSTALLATION
See Figures 1 and 2
Fig. Fig. 1: Clean the brake line fitting before trying to loosen it
Fig. Fig. 2: The wheel cylinder is held by two bolts on the rear of the backing plate
Remove the wheel and remove the brake drum.
Remove the brake shoe assembly.
Disconnect the brake line from the wheel cylinder at the backing plate.
Remove the wheel cylinder attaching bolts and the wheel cylinder.
Installation is the reverse of removal. Tighten the brake cylinder attaching bolts to 10--20 ft. Lbs. (14-28 Nm)
Bleed the brake system.