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Table 1-6. Brake Troubleshooting CONDITION
CHECK FOR
REMEDY
Excessive lever/pedal travel or spongy feel.
Air in system.
Bleed brake(s).
Master cylinder low on fluid.
Fill master cylinder with approved brake fluid.
Brake fade
Moisture in system.
Bleed brake(s). Replace fluid in master cylinder with approved brake fluid.
Chattering sound when brake is applied.
Worn pads.
Replace brake pads.
Worn D shape bushings
Replace rotor and bushings as set.
Loose mounting bolts.
Tighten bolts.
Warped rotor.
Replace rotor and bushings as set.
Low fluid level.
Fill master cylinder with approved brake fluid, and bleed system.
Piston cup not functioning.
Rebuild cylinder.
Ineffective brake – lever/pedal travel normal.
Distorted or glazed rotor.
Replace rotor and bushings as set.
Distorted, glazed or contaminated brake pads.
Replace pads.
Brake pads drag on rotor – will not retract.
Cup in master cylinder not uncovering relief port.
Inspect master cylinder.
Rear brake pedal linkage out of adjustment.
Adjust linkage.
Ineffective brake – lever/pedal travels to limit.
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2005 Buell Lightning: Maintenance