HM Bike DHM, Руководство пользователя

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Technology
22
General Safety Informatiojn
WARNING
Use neutral detergent to clean the chain. Do not use alkali-based or acid based detergent such as •
rust cleaners as it may result in damage and/or failure of the chain.
Use the reinforced connecting pin only for connecting the narrow type of chain. •
There are two different types of reinforced connecting pins available. Be sure to check the table •
below before selecting which pin to use. If connecting pins other than reinforced connecting pins
are used, or if a reinforced connecting pin
or tool which is not suitable for the type of
chain is used, sufficient connection force
may not be obtained, which could cause the
chain to break or fall off.
If it is necessary to adjust the length of the •
chain due to a change in the number of
sprocket teeth, make the cut at some other
place than the place where the chain has
been joined using a reinforced connecting
pin or an end pin. The chain will be dama-
ged if it is cut at a place where it has been joined with a reinforced connecting pin or an end pin.
Be careful not to let the cuffs of your clothes get caught in the chain while riding, otherwise you •
may fall off the bicycle.
Check that the tension of the chain is correct and that the chain is not damaged. If the tension is •
too weak or the chain is damaged, the chain should be replaced. If this is not done, the chain may
break and cause serious injury.
Use a front chainwheel which is compatible with 9-speed chains in conjunction with Shimano •
CN-7701, CN-HG93 and CN-HG73 chains. If a chainwheel for an 8-speed chain or less is used,
front chainwheel gear shifting problems may occur, or the chain pins might fall out, causing the
chain to break.
The two left crank arm mounting bolts should be tightened alternately in stages rather than each •
bolt being fully tightened all at once. Use a torque wrench to check that the final tightening torques
are within the range of 12-14 N·m. Furthermore, after riding approximately 100 km (60 miles), use
a torque wrench to re-check the tightening torques. It is also important to periodically check the
tightening torques. If the tightening torques are too weak or if the mounting bolts are not tightened
alternately in stages, the left crank arm may come off and the bicycle may fall over, and serious
injury may occur as a result.
Check that there are no cracks in the crank arms before riding the bicycle. If there are any cracks, •
the crank arm may break and you may fall off the bicycle.
If the inner cover is not installed correctly, the axle may rust and become damaged, and the •
bicycle may fall over and serious injury may occur as a result.
Obtain and read the service instructions carefully prior to installing the parts. Loose, worn or •
damaged parts may cause the bicycle to fall over and serious injury may occur as a result.We
strongly recommend only using genuine Shimano replacement parts.
Obtain and read the service instructions carefully prior to installing the parts. If adjustments are •
not carried out correctly, the chain may come off and this may cause you to fall off the bicycle
which could result in serious injury.
Read these Technical Service Instructions carefully, and keep them in a safe place for later •
reference.
NOTE:
In addition, if pedaling performance does not feel normal, check this once more. •
Before riding the bicycle, check that there is no play or looseness in the connection. Also, be sure •
to retighten the crank arms and pedals at periodic intervals.
If a squeaking noise is heard coming from the bottom bracket axle and the left crank arm connec- •
tor, apply grease to the connector and then tighten it to the specified torque.
Do not wash the bottom bracket with high-pressure jets of water. •
If you feel any looseness in the bearings, the bottom bracket should be replaced. •
If gear shifting operations do not feel smooth, wash the derailleur and lubricate all moving parts. •
If the amount of looseness in the links is so great that adjustment is not possible, you should •
replace the derailleur.
You should periodically wash the chainrings in a neutral detergent and then lubricate them again. •
In addition, cleaning the chain with neutral detergent and lubricating it can be an effective way of
extending the useful life of the chainrings and the chain.
If the chain keeps coming off the chainrings during use, replace the chainrings and the chain. •
When the chain is in the position shown in the illustration, the •
chain may contact the front chainrings or front derailleur and
generate noise. If the noise is a problem, shift the chain onto the
next-larger rear sprocket or the one after.
Apply grease to the left and right adapters before installing them. •
For smooth operation, use the specified outer casing and the •
bottom bracket cable guide.
This front derailleur is for triple front chainwheel use only. It •
cannot be used with the double front chainwheel, as the shifting
points do not match.
When installing the top route type, choose a frame that has three •
outer casing holders as shown in the illustration at right.
Use an outer casing which still has some length to spare even •
when the handlebars are turned all the way to both sides.
Furthermore, check that the shifting lever does not touch the bicycle frame when the handlebars
are turned all the way.
A special grease is used for the gear shifting cable (SIS-SP41). Do not use DURA-ACE grease or •
other types of grease, otherwise they may cause deterioration in gear shifting performance.
Grease the inner cable and the inside of the outer casing before use to ensure that they slide •
properly.
Operation of the levers related to gear shifting should be made only when the front chainwheel is •
turning.
If the brake fluid used in the oil disc brakes is of a type which tends to adhere to the plastic parts •
of the shifting lever, this may cause the plastic parts to crack or become discolored. Therefore,
you should make sure that the brake fluid does not adhere to these plastic parts.
The mineral oil which is used in SHIMANO disc brakes does not cause cracking or discoloration •
if it adheres to plastic parts, but such parts should be cleaned with alcohol beforehand to prevent
foreign particles from adhering.
Do not disassemble the indicator and shifting lever unit, as this may damage them or cause mis- •
operation.
Parts are not guaranteed against natural wear or deterioration resulting from normal use. •
For maximum performance we highly recommend Shimano lubricants and maintenance products •
For any questions regarding methods of installation, adjustment, maintenance or operation, •
please contact a professional bicycle dealer.