12-2
BRAKE SYSTEM
MECHANICAL DRUM BRAKE
Poor brake performance
● Improperly adjusted brake
● Worn brake linings
● Worn brake drum
● Worn brake cam
● Improperly installed brake linings
● Brake cable sticking/needs lubrication
● Contaminated brake linings
● Contaminated brake drum
● Worn brake shoes at cam contact areas
● Improper engagement between brake arm and camshaft serrations
Brake lever hard or slow to return
● Worn/broken return spring
● Improperly adjusted brake
● Sticking brake drum due to contamination
● Worn brake shoes at cam contact areas
● Brake cable sticking/needs lubrication
● Worn brake cam
● Improperly installed brake linings
Brake squeaks
● Worn brake linings
● Worn brake drum
● Contaminated brake linings
● Contaminated brake drum
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