Shimano CJ-8S40 Technical Service Instruction
t
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:
The CJ-8S40 cassette joint should only be
used with sprockets from 16T to 23T.
When lubricating the chain or the sprockets, be
careful not to get any oil on the rubber bellows
or the rubber cover of the cassette joint.
For maximum performance we highly
recommend Shimano lubricants and
maintenance products.
Parts are not guaranteed against natural wear
or deterioration resulting from normal use.
SI-74Y0A
Installation of the cassette joint
Refer to the Service Instructions for the Inter-8 hub for
details on installation of the cassette joint to the hub and
installation of the non-turn washer.
Note:
Different types of left and right non-turn washers are
available for use with standard and reversed fork
ends. Use whichever non-turn washers are suitable.
Non-turn washer
Fork end
Standard
Reversed
Reversed
(full chain case)
Mark
7R
The projecting parts should be on the fork end
side.
Install the non-turn washers so that the
projecting parts is securely in the fork end
grooves on either side of the hub axle.
Mark / Color
Right
5R / Yellow
7R / Black 7L / Gray
6R / Silver
5R / Yellow
Left
5L / Brown
6L / White
5L / Brown
Size
20
38
= 0
= 0
CJ-8S40
Cassette Joint
Technical Service Instructions
Disconnecting the shifting cable when removing the rear wheel from the frame
Remove the inner cable fixing bolt unit from the
Disconnect the cable from the cassette joint when
removing the rear wheel from the frame.
LOCK
CJ-8S40
JAPAN
3.
cassette joint pulley.
Inner cable fixing bolt unit
Cassette joint pulley
LOCK
Cassette joint
Set to
1
1
Set the shifting lever to .
1.
Hold the rubber cover and pull the outer casing holder
2.
out from the outer casing holder section of the
cassette joint. Then remove the inner cable attached
to the rubber bellows from the slit in the bracket. Be
careful not to damage the rubber bellows at this time.
CJ-8S40
JAPAN
Rubber bellows
Pull out the
outer casing
1
holder
2
Remove the
Rubber cover
rubber bellows
from the slit
Note:
Do not remove the cable by pulling the outer
casing.
CJ-8S40
JAPAN
If it is difficult to pull the outer casing holder out
from the outer casing holder section 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 holder from the outer casing holder
section.
2
Remove the inner
cable fixing bolt unit
3
Remove the
outer casing
CJ-8S40
holder
JAPAN
LOCK
1
Turn the
pulley
Pulley hole
2 mm Allen key
or #14 spoke
Note:
If reusing the cable, refer to steps 6 to 8 in
"Installation of the shifting cable"
.
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