Section VII. BRAKES
a. General. Brake adjustment to compensate for normal wear
new linings are installed, each brake shoe must be adjusted
to center brake shoe arc in relation to the brake drum. This
is called "major adjustment. "
Note. Always check wheel bearing adjustment (par. 53c(2)) before ad-
justing brakes. A satisfactory brake adjustment cannot be obtained unless
wheel healings are in proper adjustment. Do not adjust brakcs when drums
(1) G e n e r a l .
of brake spider and dust shield inclosure of the brake
Each shaft provides the lining clearance
adjustment for one brake shoe.
Figure 41. Brake adjusting shaft-semitrailer M270A1.
(2) B r a k e l i n i n g c l e a r a n c e a d j u s t m e n t .
on semitrailer so that wheels may be rotated freely.
(b) Engage each adjusting shaft with a 3/8-inch hex or