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

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.

Documents (1)

• Recall Document

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