Troubleshooting - Diamondback SHEPPARD CYCLES Owner's Manual

TROUBLESHOOTING

Problem
Gear shifts not working properly
Slipping chain
Chain jumping off freewheel
sprocket or chainring
Constant clicking noises when
pedalling
Grinding noise when pedalling
Freewheel does not freewheel
Brakes not working effectively
Possible Cause
Derailleur cables sticking/stretched/damaged
Front or rear derailleur not adjusted properly
Indexed shifting not adjusted properly
Front derailleur not correctly aligned
Excessively worn/chipped chainring
or freewheel sprocket teeth
Chain worn/stretched
Stiff link in chain
Non compatible chain/chainring/freewheel
Chainring out of true
Chainring loose
Chainring teeth bent or broken
Rear or front derailleur side-to-side
travel out of adjustment
Stiff chain link
Loose pedal axle/bearings
Loose bottom bracket axle/bearings
Bent bottom bracket or pedal axle
Loosen crankset
Pedal bearings too tight
Bottom bracket bearings too tight
Chain fouling derailleurs
Derailleur jockey wheels dirty/binding
Freewheel internal pawl pins are jammed
Brake blocks worn down
Brake blocks/rim greasy, wet or dirty
Brake cables are binding/stretched/damaged
Brake levers are binding
Brakes out of adjustment
Usual Remedy
Lubricate/tighten/replace cables
Adjust derailleurs
Adjust indexing
Loosen mounting nut and re-align
Replace chainring, 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 chainring/set
Adjust derailleur travel
Lubricate chain
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
Lubricate. If problem persists,
replace freewheel
Replace brake blocks
Clean blocks and rim
Clean/adjust/replace cables
Adjust brake levers
Centre brakes
SC/2012
SHEPPARD CYCLES ABN 60 082 376 289
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