b. Adjusting Rear Wheel Brake ([fig. 60]). If brake operating lever stands ahead of vertical position, excessive lining wear is indicated. Brake shoes must be replaced (steps c and d below). Normal free play of brake foot pedal before brake operation is 1 inch. After brake takes effect in vehicle operation, brake foot pedal should have 1–inch reserve travel before bottoming on footboard. If brake foot pedal operation does not come within these limits, adjust rear brake rod as follows:
(1) Remove cotter pin, plain washer, and clevis pin from end of rear brake rod clevis.
(2) Loosen clevis lock nut on brake rod.
(3) Turn clevis onto (clockwise) brake rod to shorten rod and take up foot pedal free play.
(4) Turn clevis off (counterclockwise) brake rod to lengthen rod and increase foot pedal free play.
(5) After making brake adjustment, spin rear wheel and make sure brake is not dragging. When correct brake adjustment is attained, install clevis pin in clevis and brake operating lever with plain washer, and retain with cotter pin. NOTE: Cotter pin must be in good condition.
RA PD 310273
Figure 61—Rear Brake Assembly