Shimano SG-8C20 Service-Handbuch - Seite 8

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Auch für Shimano SG-8C20: Anleitung für den technischen Service (4 seiten)

Shimano SG-8C20 Service-Handbuch
General Safety Information
– To avoid serious
WARNING
injuries:
• Obtain and read the service instruc-
tions 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.
• It is important to completely under-
stand the operation of your bicycle's
brake system. Improper use of your
bicycle's brake system may result in a
loss of control or an accident, which
could lead to severe injury. Because
each bicycle may handle differently,
be sure to learn the proper braking
technique (including brake lever
pressure and bicycle control charac-
teristics) and operation of your bicy-
cle. This can be done by consulting
your professional bicycle dealer and
the bicycle's owners manual, and by
practicing your riding and braking
technique.
• These brake levers are equipped
with a mode switching mechanism
to make them compatible with
cantilever brakes and Roller Brakes
or V-Brakes with power modulator.
If the incorrect mode is selected it
may cause either excessive or insuffi-
cient braking force to occur, which
could result in dangerous accidents.
Be sure to select the mode in accor-
dance with the instructions given in
the table below.
Mode
Applicable
position
brake
C/R position
• Cantilever
brakes
• Roller
The C indicates the
mode position for com-
Brakes
patibility with can-
tilever brakes.
The R indicates the
mode position for com-
patibility with Roller
Brakes.
V position
• V-Brakes
with
power
modulator
The V indicates the
mode position for
compatibility with
V-Brakes with power
modulator.
Use the brake levers with mode
switching mechanism in the combina-
tions given above.
• Read these Technical Service
Instructions carefully, and keep them
in a safe place for later reference.
– To avoid
CAUTION
serious injuries:
Be sure to shift the lever one gear at
a time, and reduce the force being
applied to the pedals during shifting.
If you try to force operation of the
shifting lever while the pedals are
being turned strongly, your feet may
come off the pedals and the bicycle
may topple over, which could result
in serious injury.
NOTE:
• For maximum performance we high-
ly recommend Shimano lubricants
and maintenance products.
• Parts are not guaranteed against
natural wear or deterioration result-
ing from normal use.
8
SI-6FD0A
Revo-shift
SL-8S20
Lever
BL-IM65
Brake Lever
CJ-8S20
Cassette Joint
Technical Service Instructions
Be sure to read these service
instructions in conjunction with
the service instructions for the
Inter-8 hub before use.
Revo-shift lever operation
Turn the Revo-shift lever to shift to
each of the eight gears.
Pedaling becomes heavier
Indicator moves toward
Indicator
Revo-shift lever
Pedaling becomes lighter
➀ ➀
Indicator moves toward
Installation of the lever
Install the lever as shown in the illustra-
tion.
In case of using Shimano
Leave a gap
half grip, the straight
of 0.5 mm
section of the handlebar
between the
should be 166 mm or
Revo-shift
more in length; attach
lever and the
the Revo-shift lever to
half grip.
this straight section.
Clamp bolt
1
Handlebar
3
Tighten
3 mm Allen
22.2 mm
key
Tightening torque:
Half grip
2 – 2.5 N·m
{20 – 25 kgf·cm}
Clamp bolt
1
3
2
Tighten
5 mm Allen
22.2 mm
Tightening torque:
6 – 8 N·m {60 – 80 kgf·cm}
Grip
Disconnecting the shifting cable
when removing the rear wheel from
the frame
Disconnect the cable from the
cassette joint when removing the
rear wheel from the frame.
0 2
8 -
S
C
J
N
P
A
A J
1.
Set the Revo-shift lever to
➀ ➀
Set to
2.
Pull the outer casing out from
the outer casing holder of the
cassette joint, and then remove
➇ ➇
the inner cable from the slit in
the bracket.
Bracket
Outer casing holder
Pull out from
C
J
8 -
S
0 2
outer casing
A J
P
A
N
holder.
Slit
2
Remove from the slit.
3.
Remove the inner cable fixing
bolt unit from the cassette joint
pulley.
Inner cable fixing bolt unit
Cassette joint pulley
CJ-8S20
If it is difficult to pull the outer
casing out from the outer casing
holder of the cassette joint, insert
a 2 mm Allen key or a #14 spoke
into the hole in the cassette joint
pulley, and then turn the pulley
to loosen the inner cable. Then
remove the inner cable fixing bolt
unit from the pulley first, and
after this remove the outer casing
from the outer casing holder.
2
2
Remove the
inner cable fix-
ing bolt unit
1
Turn the
2 mm Allen key or
pulley
#14 spoke
NOTE:
key
If reusing the cable, refer to steps
7 to 9 in "Installation of the shift-
ing cable".
Installation of the
shifting cable
Use a shifting cable with one
inner cable drum.
Cable with one inner cable drum /
SIS-SP40 (4 mm dia.)
1.
Set the Revo-shift lever to
Set to
Cassette
joint
➀ ➀
.
■ Revo-shift lever side
2.
Loosen the cover fixing screw, and
then remove the upper cover.
1
3.
Pass the inner cable from the hole
in the winder unit through the
hole in the cable adjustment bolt.
Next, insert the inner cable into
the groove of the cable guide,
and pull the inner cable so that
the inner cable drum fits into the
recess in the winder unit.
Hole in cable
adjustment bolt
2
Groove in cable guide
JAPAN
3
Recess in winder unit
Pull out
from the
4.
outer casing
Replace the upper cover and
holder
tighten the cover fixing screw.
Tightening torque:
CJ-8S20
JAPAN
0.1 – 0.2 N·m {1 – 2 kgf·cm}
Pulley hole
➀ ➀
.
➀ ➀
Cover fixing screw
Upper cover
3
Hole in
winder unit
1
4
Cover fixing screw
Upper cover