Schwinn HYBRID BICYCLE Owner's Manual page 65

Problem
Freewheel does not
rotate
Brakes not working
effectively
When applying the
brakes they squeal/
squeak
Knocking or shuddering
when applying brakes
Wobbling wheel
Possible Cause
• Freewheel internal pawl pins are jammed
• Brake pads worn down
• Brake pads/rim greasy, wet or dirty
• Brake cables are binding/stretched/damaged
• Brake levers are binding
• Brakes out of adjustment
• Brake pads worn down
• Brake pads toe-in incorrect
• Brake pads/rim dirty or wet
• Brake arms loose
• Bulge in the rim or rim out of true
• Brake mounting bolts loose
• Brakes out of adjustment
• Fork loose in head tube
• Axle broken
• Wheel out of true
• Hub comes loose
• Headset binding
• Hub bearings collapsed
• Quick-release mechanism loose
Remedy
• Lubricate. If problem persists, replace freewheel
• Replace brake pads
• Clean pads and rim
• Clean/adjust/replace cables
• Adjust brake levers
• Center brakes
• Replace pads
• Correct pads toe-in
• Clean pads and rim
• Tighten mounting bolts
• True wheel or take to a bike shop for repair
• Tighten bolts
• Center brakes and/or adjust brake pads toe-in
• Tighten headset
• Replace axle
• True wheel
• Adjust hub bearings
• Adjust headset
• Replace bearings
• Adjust quick-release mechanism
Maintenance 6
63