Instructions
1. Remove brake drum.Brake drum inspection is one of the most relevant safety inspections for a vehivle. Your brakes compulsion to job properly to point your van. The brake drums absorb heat and dissipate it, so they can be weakened whether their cooling surface sphere is reduced by distortion.
You'll catch the drum's maximum calibre stamped onto the elsewhere of it.
2. Sponge absent dust with damp cloth. You'll call for an approved brake cleaner being brake dust may embrace Asbestos. When you Stop using the cloth, dispose of it.
3. Peep drum. You need to check for cracks, deep grooves, roughness or scoring. These may appear to be small discolored areas.
4. Smooth slight scores with fine emery cloth. Light scoring of the drum of less than .020 inches in depth won't affect your brake's operation. A mechanic should resurface heavy or extensive scoring.
5. Measure drum for taper and out-of-roundness. You need To gauge with a drum micrometer at the open and closed edges of the friction surface and at right angles to each other. Even though you may not see the out-of-roundness with a visual inspection, you may find the measurements show it has an egg shape.
