FITFIU FITNESS VINTAGE Manuel D'utilisation page 62

Problem
Constant clicking
noises
when pedalling
Grinding noise when
pedalling
Freewheel does not
rotate
Brakes not working
effectively
When braking you feel
a knock or tremor
Wheel wobbles/dances
Inaccurate address
Frequently punctured
wheels
Possible Cause
• Stiff chain link
• Loose pedal axle/bearings
• Loose bottom bracket axle/bearings
• Bent bottom bracket or pedal axle
• Loose crank set
• Pedal bearings too tight
• Bottom bracket bearings too tight
• Chain fouling derailleurs
• Derailleur jockey wheels dirt/binding
• Freewheel internal pawl pins are
jammed
• Brake blocks worn down
• Brake blocks/rim greasy, wet or dirty
• Brake cables are binding/stretched/
damaged
• Brakes levers are binding
• Brakes out of adjustment
• Dent in the tire or the tire is off the
bracket
• Brake mount bolts are loose
• The brakes are not properly adjusted
• Gap in the fork of the head tube
• The shaft is broken
• Wheel off hub
• Steering tube joins
• Collapsed shaft bearings
• Quick release mechanism is loose
• The wheels are not aligned in the frame
• Loose or blocked steering tube
• Front forks or bent frame
• The inner tube is old or defective
• The tyre tread is worn
• The tyre is not suitable for the rim
• The tyre was not checked after a
puncture
• Tyre pressure is too low
• Radius protruding from the rim
• 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
• Lubricate. If problem persists, replace
freewheel
• Replace brake blocks
• Clean blocks an rim
• Clean/adjust/replace cables
• Adjust brake levers
• Centre brakes
• Place the rim on the bracket correctly
or take the bicycle to a store for repair.
• Tighten the bolts
• Center the brakes and/or adjust the
brake lock
• Squeeze it.
• Replace shaft
• Adjust the wheel hub
• Adjust shaft bearings
• Adjust Steering Tube
• Replace bearings
• Adjust the quick release mechanism
• Align the wheels correctly
• Adjusting / tightening the head tube
• Take the bicycle to a bicycle workshop
for possible realignment of the frame
• Replace the inner tube
• Replace tire
• Replace with a correct tire
• Remove the punctured object from
the tyre
• Correct wheel pressure
• Lime the radius
62
Possible solution