TCM FB15-7 - 5.2.4 OPERATION TEST OF AUTOMATIC CLEARANCE ADJUSTER

5. BRAKE SYSTEM
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5.2.4 OPERATION TEST OF AUTOMATIC CLEARANCE ADJUSTER
(1) Set the outer diameter of the brake shoe to nearly the normal mounting dimension. Push up the
adjuster lever and adjust the diameter, turning the teeth of the adjuster.
 Whenyourngerisreleased,theteethoftheadjusterdonotturnandtheadjusterleverreturnsto
the original position.
Note: If the teeth of the adjuster return with the lever, they are adjusted properly after mounting the
brake system on the truck.
(2) If the operation described above does not occur by pushing up the adjuster lever, take the following
measures:
(a) Check that the adjuster lever, adjuster, adjuster sprint, adjuster cable and shoe return spring are
securely installed.
(b) Check the shoe return spring and adjuster spring for deterioration, the adjuster for rotation, damaged
tooth or damage of the contact area with the teeth of the adjuster lever, and replace any defective
parts.
Fig. 5.28
Expanding part