SERVICE BRAKE ASSEMBLY - CONTINUED
INSPECTION CRITERIA - CONTINUED
Check brake shoe return spring tension.
Tension should be between 75 to 90
pounds pull with a spring length of 9.5
inches. Replace spring if improper
tension or elongation.
For visual inspection of the brake lining wear, the
brake linings can be grooved on the side, or
chamfered on the four inner corners. This makes it
easier to determine how much the lining has been
worn and when the vehicle should be scheduled for
Shoes for cracks.
Linings for cracks, looseness to shoes, or
a thickness of at least 1/8 inch (3.2
Rivets looseness. Rivets should also be at
least 1/16 inch (1.6 millimeters) below
the surface of the lining.