Should separation occur, repeated brake operation maydamage the wheel brake cylinder dust boot, allowing water or dust intrusion andsubsequent piston contamination.

Service Brakes, Hydraulic — Foundation Components — Drum — Shoes/Linings

Date Announced
DEC 29, 1987
Vehicles Affected
14,807
NHTSA Campaign #
87V196000
Summary
Vehicles equipped with rear brake drums transported by train may experience separation of the brake shoe from the wheel brake cylinder piston.
Actions
All vehicles will be inspected and if no separation is found grease will be applied to the component interface to lower friction and avoid subsequent relative motion. If separation is found the wheel brake cylinder dust boot will be replaced.
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