TM 9-2320-366-20-4
NOTE
Over time a ridge will form on the outer edge of the brake shoes. This is normal and does not affect
brake shoe serviceability.
(3) Inspect rear brake shoes for OUT-OF-SERVICE and IN-SERVICE criteria as shown in Figure 11-2. Rear Brake
Shoe Service Criteria.
OUT-OF-SERVICE
IN-SERVICE
Cracks or voids that exceed 1/16 in. in width.
Vertical or horizontal cracks in lining edge not exceeding
1/16 in. in width or not exceeding 1-1/2 in. in length.
Cracks that exceed 1-1/2 in. in length.
Portion of lining missing that exposes a fastening device.
Corner segment missing with no fastening device (rivet or
bolt) exposed.
Cracks across the lining face that extend through the lining
Surface cracks in lining face that can extend from hole to
edges.
hole.
Pitting and material erosion on the lining face.