Shimano SG-8C20 Service Manual - Page 10

Browse online or download pdf Service Manual for Industrial Equipment Shimano SG-8C20. Shimano SG-8C20 36 pages. Inter-8 coaster hub
Also for Shimano SG-8C20: Technical Service Instruction (4 pages)

Print Page

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 sprock-

ets, 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.

CJ-8S40

Technical Service Instructions

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.

4 0

-8 S

C J

P A

Set the shifting lever to

Set to

Hold the rubber cover and pull the outer casing

holder 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.

Remove the

rubber bellows

from the slit

Note:

Do not remove the cable by pulling the outer

casing.

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 wash-

ers are available for use with standard and

reversed fork ends. Use whichever non-turn

washers are suitable.

Fork end

Standard

Reversed

(full chain

case)

7 R

• The projecting parts should be

SI-74Y0A

on the fork end side.

• Install the non-turn washers so that the project-

ing parts are securely in the fork end grooves

Cassette Joint

on either side of the hub axle.

Remove the inner cable fixing bolt unit from

the cassette joint pulley.

Cassette joint

➀ ➀

If it is difficult to pull the outer casing holder

➀ ➀

out from the outer casing holder section of the

cassette joint, insert a 2mm 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.

Remove the inner

cable fixing bolt unit

Rubber bellows

Pull out the

outer casing

holder

Turn the

Rubber cover

pulley

Note:

If reusing the cable, refer to steps 6 to 8 in

"Installation of the shifting cable".

Non-turn washer

Mark/Color

Size

Right

Left

θ θ

5R/Yellow

5L/Brown

θ θ

7R/ Black

7L/Gray

θ θ = 0

6R/Silver

6L/White

θ θ = 0

5R/Yellow

5L/Brown

Mark

Inner cable fixing bolt unit

Cassette joint pulley

CJ-8S40

JAPAN

Remove the

outer casing

holder

CJ-8S40

JAPAN

Pulley hole

2mm Allen key

or #14 spoke

Installation of the shifting cable

Use a shifting cable with one inner cable drum.

SIS-SP (4 mm or 5 mm dia.)

Shifting lever end

Shield cap

Note:

Make sure that the shield cap is at the shifting

lever end.

■ Shifting lever side

Connect the shifting cable to the shifting lever.

Refer to the Service Instructions which are

provided with the INTER-8 shifting lever.

■ Cassette joint side

Set the shifting lever to

Install the rubber cover and rubber bellows to

the outer casing holder.

Rubber bellows

Wipe away any grease which may be on the inner

cable, and then pass the inner cable through the

rubber bellows. After this, insert the outer casing

into the rubber cover and set it into the outer

casing holder.

Use a new inner cable. Do not use a cable

which has had the end cut off.

Be careful of the inner cable end.

1) While holding the end of the rubber bellows, insert

the inner cable. Be careful not to pierce the rubber

bellows with the end of the inner cable at this time.

End of rubber bellows

2) Slide the rubber bellows onto the inner cable.

Cassette joint end

➀

➀ ➀

Set to

Outer casing

Rubber cover

holder

Not OK

Inner cable

Rubber bellows