Apollo Radius - Manual (Page 68)

TROUBLESHOOTING
66
Problem Possible Reason Possible Solution
Slipping chain Excessively worn or chipped
chainring or freewheel
sprocket teeth
Chain worn/stretched
Stiff link in chain
Non compatible chain/
chainring/freewheel
Replace chainring/sprockets/
chain
Replace chain
Oil or replace link
Consult a professional
bicycle mechanic
Brake not working correctly Brake blocks worn down Replace brake blocks
Brake blocks/rim greasy, wet
or dirty
Clean blocks and rim
Brake cables are binding/
stretched/damaged
Clean/adjust/replace cables
Brake levers are binding Alter brake levers
Brakes out of adjustment Centre brakes
Frequent punctures Inner tube old or faulty
Tyre tread/casing worn
Tyre incompatible to rim
Tyre not checked after
previous puncture
Tyre pressure too low
Spoke protruding into rim
Replace inner tube
Replace tyre
Replace with correct tyre
Remove any sharp objects
from tyre
Inflate tyre to correct
pressure
File down spoke
When the brakes are applied Brake blocks worn Replace brake blocks
they squeal/squeak Brake blocks/rim greasy, wet
or dirty
Clean blocks and rim
Brake block toe-in incorrect Correct block toe-in
Brake arms loose Secure mounting bolts
Wobbling wheel Axle broken
Wheel out of true
Hub cones loose
Headset bindings
Hub bearings collapsed
Replace axle
True wheel
Tighten hub bearings
Alter headset
Replace bearings
Knocking or shuddering
when brakes applied
Bulge in the rim or rim out
of true
True wheel or consult a bike
mechanic
Brake mounting bolts loose Secure bolts
Brakes out of adjustment Centre brakes and/or adjust
brake block toe-in
Forks loose in head tube Secure headset
Constant clicking noises
when pedalling Stiff chain link
Loose pedal axle/bearings
Loose bottom bracket/
bearings
Bent bottom bracket or pedal
axle
Loose crankset
Oil chain
Alter bearings/axle nut
Alter bottom bracket
Replace bottom bracket or
pedals
Tighten crank bolts
RAOM0507 Apollo Bicycle Company Pty. Ltd. ABN: 60 001 914 469 Updated 23/05/07