Drum brakes work on a very simple principle. The brake arm is pulled by the cable, attached to the brake lever on the handlebar. This causes the brake pads to clamshell open and rub against the internal sides of the wheel brake drum. The wheel slows down or completely stops, depending on the pressure of the brake handle. Brake dust is caused by the friction of the drum against the Abestos brake pads. As the brakes wear, more brake dust accumulates in the brake drum area. Clean the area with soap and water along with all parts. Never use oil of any kind on the brake pads. NEVER.. Oily brake pads will cause the brakes to instantly stick to the drums, the moment they are applied. Brake-Kleen is an excellent pad cleaner. Spray it on and just let it drip off and it evaporates very fast like ether.
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