Explorer 2WD V6-245 4.0L (1994)
Brake Shoe: Testing and Inspection
WARNING: Brake assembly dust and dirt should not be removed by either blowing off with an air gun or vacuuming with a standard
industrial vacuum cleaner because a health hazard from breathing in asbestos dust may develop. Also, any machining done on brake linings or
pads should be done using proper exhaust-ventilated equipment.
NOTE: Removal of dust and dirt from brake assemblies should be done by using the Rotunda Brake and Clutch Service Vacuum 091-00001 or Rotunda
Brake Parts Washer 065-00016 or an equivalent.
INSPECTION
1. Inspect rear brake shoes and linings (2200) for excessive lining wear or shoe damage. If lining is damaged or worn within 0.79mm (1/32 inch) of
the rivet heads on riveted linings, it must be replaced. Replace any rear brake shoe and lining that has been contaminated with oil, grease or brake
fluid. Replace rear brake shoe and lining in axle sets only. Never replace just one rear brake shoe and lining of a brake assembly. Replace both
primary and secondary shoes. Prior to replacement of lining, brake drum diameter should be checked to determine that brake drum diameter is
within specification. If braking surface diameter exceeds specification, the brake drum must be replaced.
2. Check condition of rear brake shoes and linings, retracting spring, hold-down springs, and brake drum for signs of overheating. If rear brake shoe
and lining metal parts have a slight blue coloring, indicating overheating, retracting and hold-down springs should be replaced. Overheated springs
lose their tension and could allow new rear brake shoe and lining to drag and wear prematurely, if not replaced.
