Kalkhoff Derby Instruction Manual - page 42
Chain sprockets, rear sprockets, bottom bracket and gear shift rollers
In the case of bicycles with chain gear shifter, the chain sprockets, rear sprockets,
bottom bracket and gear shift rollers are subject to wear. The level of wear is
dependant on the care, maintenance and usage of the bicycle (mileage, riding
in the rain, dirt, salt, etc).
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In order to prolong the service lifetime, clean and oil these parts regularly.
➢
Have them replaced by a dealer if the wear limit has been reached.
Lighting system lamps
Light bulbs and other light sources are subject to wear.
For this reason, replacement may be necessary.
➢
Always carry replacement light bulbs, so that defective bulbs can be replaced.
Handlebar tapes and grip covers
Handlebar tapes and grip covers are subject to wear.
For this reason, regular replacement may be necessary.
➢
Check regularly that the grips are seated tightly.
Hydraulic oils and lubricants
Hydraulic oils and grease lose their efficiency over a period of time.
Failure to exchange lubricants regularly will result in greater wear of the affected
parts and bearings.
➢
Clean and lubricate all relevant parts and bearings regularly.
Gear shift and brake cables
➢
Maintain all Bowden cables regularly.
➢
Have defective parts replaced by a dealer.
This can be especially necessary when the bicycle is often parked in the open and is
subject to weather influences.
Paintwork
The paintwork requires regular maintenance. This preserves the optical appearance
of your bicycle.
➢
Check the paintwork regularly for damage and repair it immediately.
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Consumable parts
Have your bicycle checked regularly by a dealer and the consumable parts
replaced.
Your bicycle is a technical product which must be checked regularly. Many parts
of your bicycle are subject to higher wear, depending on their function and use.
Tyres
The bicycle tyres are subject to wear. This is dependant on the usage of the bicycle. It
can be significantly influenced by the rider.
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Do not brake so hard that the wheels lock.
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Check the tyre pressures regularly.
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If necessary, pump up the tyres to the tyre manufacturer’s specified tyre pressure.
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Avoid prolonged exposure to sunlight, petrol, oil, etc, which can damage the tyres.
Wheel rims in conjunction with brakes
Due to the interaction between the brake and the wheel rim, not only the brake pad
but also the wheel rim is subject to wear. If fine cracks appear or the wheel rims
deform when the tyre pressure is increased, this indicates increased wear. Wheel rims
with wear indicators make it possible to easily determine the amount of wear.
➢
Check the wheel rims regularly for wear (see chapter “Checking the wheel rims”,
page 34).
Brake pads and shoes
The brake pads of wheel rim, roller, drum and disc brakes are subject to wear, depen-
ding on the usage of the bicycle. When riding in hilly country or when the bicycle is
used for sporting purposes, replacement of the brake pads may be necessary at shorter
intervals. Check the brake pads regularly for wear and have them replaced by a dealer
if necessary.
Bicycle chains and toothed belts
The bicycle chain is subject to wear. The level of wear is dependant on the care, main-
tenance and usage of the bicycle (mileage, riding in the rain, dirt, salt, etc).
➢
In order to prolong the service lifetime, clean and oil bicycle chains and toothed
belts regularly.
➢
Have them replaced by a dealer if the wear limit has been reached (see chapter
“Bicycle chain maintenance”, page 24).
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DCW BedienA_GB UNI.qxd 24.10.2007 12:50 Uhr Seite 43