Troubleshooting Guide - Schwinn HYBRID BICYCLE Owner's Manual

6 Maintenance

TROUBLESHOOTING GUIDE

Problem
Gear shifts not • Derailleur cables sticking/stretched/ damaged
working properly
• Front or rear derailleur not adjusted properly
• Indexed shifting not adjusted properly
Slipping chain • Excessively worn/chipped chain wheel or freewheel sprocket
• Chain worn/stretched
• Stiff link in chain
• Non compatible chain/chain wheel freewheel
Chain jumping off • Chain wheel out of true
freewheel sprocket or
• Chain wheel loose
chain wheel
• Chain wheel teeth bent or broken
• Rear or front derailleur side-to-side travel out of adjustment
• Cross chaining and shifting under load
Constant clicking • Stiff chain link
noises when pedaling
• Loose pedal axle/bearing
• Loose bottom bracket axle/bearings
• Bent bottom bracket or pedal axle
• Loose crankset
Grinding noise when • Pedal bearings too tight
pedaling
• Bottom bracket bearings too tight
• Chain fouling derailleurs
• Derailleur jockey wheels dirty/binding
62
Possible Cause
teeth
Remedy
• Lubricate/tighten/replace cables
• Adjust derailleurs
• Adjust indexing
• Replace chain wheel, sprockets and
chain
• Replace chain
• Lubricate or replace link
• Seek advice at a bicycle shop
• Re-true if possible, or replace
• Tighten mounting bolts
• Repair or replace chain wheel/set
• Adjust derailleur travel
• Lubricate chain/adjust chain link
• Adjust bearings/axle nut
• Adjust bottom bracket
• Replace bottom bracket axle or pedals
• Tighten crank bolts
• Adjust bearings
• Adjust bearings
• Adjust chain line
• Clean and lubricate jockey wheels