Youin AMSTERDAM Manual De Usuario página 25

Service & Maintenance Schedule
Charge your batteries and make sure they are protected from water. Batteries should
be charged every 30 days to avoid capacity loss. Don't cover the bicycle with plastic
as "sweating" will result and it may cause rusting. Please notice that your bicycle
warranty does not cover paint damage (except as outlined in the warranty section of
this manual),rust, corrosion, dry rot or theft.
Problems and Remedy
Problem
Gear shifts not working
properly
Slipping chain
Chain jumping off freewheel
sprocket or chain ring
Constant clicking noises
when pedaling
Grinding noise when pedaling
Freewheel does not rotate
Possible Cause
- Derailleur
cables sticking/stretched/
damaged
- Front or rear derailleur not
adjusted properly
- Indexed shifting not adjusted
properly
- Excessively worn/chipped
chain ring or freewheel
sprocket teeth
- Chain worn. stretched
- Stiff link in chain
- Non-compatible chain/chain
ring/freewheel
- Chain ring out of true
- Chain ring loose
- Chain ring 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
- 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
Remedy
- Lubricate/tighten/replace
cables
- Adjust derailleurs
- Adjust indexing
- Replace chain ring, sprockets
and chain
- Replace chain
- Lubricate or replace link
- Seek advice at a bicycle sho
- Re-true if possible, or replace
- Tighten mounting bolts
- Repair or replace chain ring/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
- Lubricate. If problem persists,
replace freewheel
ENGLISH 25