Drum Brakes: Inspection
- Pull back wheel cylinder dust boots and check for evidence of leakage. If evidence of leakage is noted, cylinder should be disassembled, inspected and overhauled.
- Polish brake support plate ledges with fine emery cloth and inspect for grooves that could restrict shoe movement. If grooves exist after polishing, support plate must be replaced.
- Inspect lining wear pattern. If wear across width of lining is uneven, drums should be checked for distortion, shoes for correct positioning, and support plate for distortion.
- Inspect all springs for evidence of overheating and fractures. Self-adjusting cables should be inspected for kinks, fraying, or elongation of eyelet. Inspect adjuster screws for freedom of rotation, and adjuster lever for wear and distortion. Replace all defective brake parts.