23
NOTE:
If the chain is in the position shown, it could rub against
the chain rings or the front derailleur and make a noise.
If this is the case, you can shift the chain onto the sec-
ond or next largest sprocket.
XI-3.2: Cleaning
•
Whenever possible, avoid using cleaning agents on the chain. If you use cleaning agents,
such as rust remover, this may wash lubricant out of the chain which could lead to malfunc-
tions.
•
The chain rings and sprockets should be cleaned regularly using a neutral cleaning agent.
•
You should clean the derailleur and lubricate the moving parts (mechanism and rollers) at
regular intervals.
XII. Bike chain
There are two types of bike chain:
•
A wide bike chain (½ x 3/32”) for hub gears
•
A narrow bike chain for derailleur gears. These are available in different widths, depending
on how many sprockets are on the cassette. Only use chains that are approved for precisely
the number of sprocket wheels on your bike. •Clean and lubricate your bike chain regularly.
•
To prevent premature wear of the bike chain when using derailleur gears, select gears that
keep the chain skew as marginal as possible.
To check the wear in the bike chain, proceed as follows:
•
Take the section of the chain that rests on the front chain ring between your thumb and
forefinger.
• Pull the bike chain o’ the chain ring. If the bike chain can be lifted by a significant amount, it
is worn and must be replaced by a new one.
•
With hub gears, the chain tension must be adjusted so that vertical play of one to two
centimeters is present in the unsupported chain span between the chain ring and sprocket
wheel.
•
To take up the slack in the bike chain, proceed as follows.
•
Loosen the rear wheel nuts.
•
Pull the wheel back into the dropouts until only the permissible amount of play is present in
the bike chain.
•
Tighten all screw connections carefully clockwise.
WARNING:
Tighten all screws to the prescribed torque as otherwise screws could shear o' and com-
ponents could come loose or detach altogether (see 'Technical data").
Maintenance of bike chains:
Bike chains are wear parts. Bike chains with hub gears wear out after roughly 2000km, and after
roughly 1000km with derailleur gears.
WARNING:
If the bike chain is worn, it can break and cause a crash. If your bike chain is worn, have
it replaced by your specialist cycle shop before using the bike again.
