Shimano SG-8C20 Instrukcja serwisowa - Strona 6

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General Safety Information

WARNING

• It is important to completely understand

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 sever injury. Because each bicycle may

handle differently, be sure to learn the

proper braking technique (including

bicycle control characteristics) and

operation of your bicycle. This can be

done by consulting your professional

bicycle dealer and the bicycle owner's

manual, and by practicing your riding

and braking technique.

• When securing the brake arm to the

frame, be sure to use a brake arm clip

that matches the size of the chainstay,

and securely tighten them with the clip

screw and clip nut to the specified

tightening torque.

Use a lock nut with a nylon insert (self-

locking nut) for the clip nut. It is re-

commended that standard Shimano parts

be used for the clip screw, clip nut and

brake arm clip. In addition, use a brake

arm clip that matches the size of the

chainstay.

If the clip nut comes off the brake arm,

or if the clip screw or brake arm clip

becomes damaged, the brake arm may

rotate on the chainstay and cause the

handlebars to jerk suddenly, or the

bicycle wheel may lock and the bicycle

may fall over, causing serious injury.

• When installing the hub to the frame,

be sure to install the correct non-turn

washers to the left and right sides, and

securely tighten the hub nuts to the

specified torques. If the non-turn washers

are installed to one side only, or if the

hub nuts are not tightened sufficiently,

the non-turn washer may fall out, which

could cause the hub axle to rotate and

the cassette joint to turn. This may then

cause the handlebars to be accidentally

pulled by the shifting cable, and an

extremely serious accident could result.

• 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.

• Check that the wheels are fastened

securely before riding the bicycle. If the

wheels are loose in any way, they may

come off the bicycle and serious injury

may result.

• Read these Technical Service Instructions

carefully, and keep them in a safe place

for later reference.

– To avoid serious

injuries:

• Avoid continuous application of the

brakes when riding down long slopes, as

this will cause the internal brake parts to

become very hot, and this may weaken

braking performance. It may also cause a

reduction in the amount of brake grease

inside the brake, and this can lead to

problems such as abnormally sudden

braking.

• Spin the wheel and confirm that the

braking force of the coaster brake is

correct.

• If the brakes are used frequently, the

brake drum may become hot. Do not

touch the brake drum for at least

30 minutes after you finish riding the

bicycle.

NOTE:

• You can shift gears while pedaling, but

on rare occasions the pawls and ratchet

inside the hub may produce some noise

afterwards as part of normal gear shift-

ing operation.

• The CJ-8S20 cassette joint should only be

used with sprockets from 16T to 23T.

• If the wheel becomes stiff and difficult to

turn, you should replace the brake shoes

or lubricate with grease.

• Do not apply any lubricant to the inside

of the hub, otherwise the grease will

come out.

• You should periodically wash the sprock-

ets in a neutral detergent and then

lubricate them again. In addition, clean-

ing the chain with neutral detergent and

lubricating it can be a effective way of

extending the useful life of the sprockets

and the chain.

• If the chain keeps coming off the sprock-

ets during use, replace the sprockets and

the chain.

• 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

handling or adjustment, please contact

the place of purchase.

– To avoid serious

CAUTION

injuries:

Brake drum

INTER-8 Hub

SG-8C20

with Coaster Brake

CJ-8S20

Cassette Joint

Technical Service Instructions

Be sure to read these service instructions in

conjunction with the service instructions for

the INTER-8 shifting lever before use.

Installation of the cassette joint

to the hub

Install the driver cap to the driver on the

right side of the hub body.

Driver cap

Driver

Driver cap

Turn the cassette joint pulley in the

direction of the arrow in the illustration

to align the red ● marks on the pulley

and the bracket. With the cassette joint

in this condition, install it so that the

red ● mark on the cassette joint is

aligned with the red ● mark on the

right side of the hub body.

Should be aligned

Pulley

Bracket

CJ-8S20

JAPAN

Cassette joint

CJ-8S20

JAPAN

Align the

red ● marks

to install.

Right side of

the hub body

SI-35P0A

Note the

direction

Align the

red ● marks

to install.