Shimano Dura-Ace SL-BS78 Istruzioni di servizio
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General Safety Information
WARNING
– To avoid serious injuries:
Obtain and read the service instructions carefully
prior to installing the parts. Loose, worn, or damaged
parts may cause serious injury to the rider.
We strongly recommend only using genuine
Shimano replacement parts.
Read these Technical Service Instructions carefully,
and keep them in a safe place for later reference.
NOTE:
Do not turn the ring until the lever has been secured
to the body unit.
For smooth operation, use the specified outer casing
and bottom bracket cable guide.
Because the high cable resistance of a frame with
internal cable routing would impair the SIS function,
this type of frame should not be used.
The sliding surfaces of the inner cable and outer
casing should be greased before use.
The shifting lever can be installed to handlebars with
diameters of 19.0 – 22.0 mm.
Operation of the levers related to gear shifting
should be made only when the front chainwheel is
turning.
Parts are not guaranteed against natural wear or
deterioration resulting from normal use.
For any questions regarding methods of handling or
maintenance, please contact the place of purchase.
SL-BS78
Technical Service Instructions
Ring
SI-6J60A
Bar End
Shifting Lever
In order to realize the best performance, we recommend
that the following combination be used.
Series
DURA-ACE
Shifting lever
SL-BS78
Rear derailleur
RD-7800
Front derailleur
FD-7800
Outer casing
SP41 sealed outer casing
Inner cable
1.2 mm dia. (stainless steel)
Bottom bracket guide
SM-SP17
Sprockets
10
Installation of the lever
The illustration shows an explanation of the case
where the shifting lever is installed to drop handlebars.
Install the front lever in the same way.
1.
Attach the body unit to the handlebar, and then use a
6 mm Allen key to turn the body fixing bolt
counterclockwise to tighten it.
Body fixing bolt
Body unit
2.
Install the lever boss to the body unit.
6 mm Allen key
Tightening torque:
5 – 6 Nm
{43 – 52 in. lbs.}
Lever boss
t