Brake Shoe: Adjustments

Fig. 4 Rear Brake Drum Assembly:

Drum Brake Assembly:

Fig. 5 Initial Brake Adjustment:

Fig. 6 Rear Wheel Bearing Assembly:

BRAKE ADJUSTMENTS
Although the brakes are self-adjusting, Figs. 7 and 8, an initial adjustment will be necessary after a brake repair. The initial adjustment can be obtained as follows:
1. On 7 in. brakes, pivot adjuster quadrant until it meshes with knurled pin and is in third or fourth notch of the outboard end of the quadrant, Fig. 9.
2. On 8 in. brakes, determine inside diameter of drum brake surface using brake shoe gauge tool D81L-1103-A or equivalent. Adjust brake shoe diameter to fit gauge. Hold automatic adjusting lever out of engagement while rotating adjusting screw and ensure that screw rotates freely.
3. Install drum and wheel assembly, then adjust wheel bearings as described in Fig. 10.
4. Complete adjustment by applying brakes several times, then check brake operation by making several stops from varying speeds. If brake drum cannot be removed for brake servicing, remove rubber plug from backing plate inspection hole. On 7 in. brakes, insert a suitable tool into the hole until it contacts adjuster assembly pivot. apply pressure sideways on the pivot point allowing adjuster quadrant to ratchet and release the brake adjustment. On 8 in. brakes remove the brake line to axle retention bracket. This will allow sufficient room for insertion of a suitable tool to disengage adjusting lever and back off the adjusting screw.