Kellys Alpina MTB Manual De Instrucciones página 5

MTB / CROSS
• FRONT DERAILLEUR TUNING
Any loose of the control cable should be eliminated by releasing the fixing screw of the cable and
stretching the cable (with pliers). Tighten the fixing screw. Check the functionality.
FRONT DERAILLEUR
CHAIN
Chain transmits power from pedals to rear bicycle wheel. It is one of the most stressed parts of bicycle
therefore its maintainance requires higher attention. Rear derailleur provides correct chain tension. Life
of chain can be prolonged by periodical chain cleaning from mechanical dirt (e.g. dust, mud). Oil with
teflon is recommended for chain lubrication - your retailer will recommend you appropriate lubricant.
Chain links are sprawled by riding bicycle. Worn and damaged chain can cause damages on cassette
sprockets and chainwheels. If bicycle is used in hard terrain regularly (e.g. wet and muddy) chain should
be replaced by new one each 1000 km. Replace worn out chain by new one of the same type and with
the same amount of links like the worn out chain has.
BRAKE SYSTEM
Brake system consists of brake levers, cables, front and rear calipers, brake shoes, and is one of the most
important components of your bike. Right brake lever operates rear brake, left brake lever operates front
brake. Brakes are set by manufacturer. For your own safety do not make any brake system adjustments
until it is really necessary! Check periodically the wear of friction surfaces, brake pads and keep rims
clean. Untuned brake system has to be adjusted again or ask a special bike service for help.
top and low
adjustment screws
fixing screw
of the inner cable
chain guide
BRAKE CABLES
Brake system of bicycle will be effective only when brake cables are correctly stretched. Brake cables
can be set by adjusting screws on brake levers. Lubricate brake cables and outer casings with oil which
provides cables running smoothly. End cup should be placed on cable end to prevent its ply apart and
damage. Damaged or worn out cable must be replaced by new one.
BRAKE ADJUSTMENT
Brake shoes should be 1 mm from the rim in V-type brakes.
BRAKE
outer casing
brake arm
brake shoes
1 mm 1 mm
WARNING
Brake shoes may not touch the tire - otherwise this could cause an over-heating of the tire! Check the wear,
and if it is necessary, change them. Repleace worn out brake shoes with new one original brake shoes
matching your brake type.
1. Release the safety nut of the adjustment screw on the brake lever. If it is necessary to bring the pads
closer to the rim, turn the adjustment screw counterclockwiseout from the thread. Secure the safety
owner'smanual
cable fixing screw
inner cable end cap
brake cable
rim
GB
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