Shimano BR-R550 Serviceanleitung Handbuch - Seite 2

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SI-8A20A-003-00

General Safety Information

WARNING

– To avoid serious injuries:

• Improper use of your bicycle's brake system may result in a loss of control

or an accident, which could lead to a severe injury. Because each bicycle

may handle differently, be sure to learn the proper braking technique

(including brake lever pressure and bicycle control characteristics) for your

bicycle. Consult your bicycle dealer and the bicycle's owners manual, and

practice your riding and braking technique.

• If the front brake is applied too strongly, the wheel may lock and the

bicycle may fall forward, and serious injury may result.

• Brakes designed for use as rear brakes should not be used as front

brakes.

• Obtain and read the service instructions carefully prior to installing the

parts. Loose, worn or damaged parts may cause the bicycle to fall over

and serious injury may occur as a result. We strongly recommend only

using genuine Shimano replacement parts.

• Be careful not to allow any oil or grease to get onto the brake shoes. If

any oil or grease do get on the shoes, you should replace the shoes,

otherwise the brakes may not work correctly.

• Check the brake cable for rust and fraying, and replace the cable

immediately if any such problems are found. If this is not done, the brakes

may not work correctly.

• Always make sure that the front and rear brakes are working correctly

before you ride the bicycle.

• The required braking distance will be longer during wet weather. Reduce

your speed and apply the brakes early and gently.

• If the road surface is wet, the tires will skid more easily. If the tires skid,

you may fall off the bicycle. To avoid this, reduce your speed and apply the

brakes early and gently.

• Read these Technical Service Instructions carefully, and keep them in a

safe place for later reference.

Note

• The optimum efficiency of the Multi-Condition Brake System can be

realized by using the brakes and brake levers in the recommended set.

• If the brake shoes have worn down until the grooves are no longer visible,

they should be replaced.

• Different brake shoes have their own characteristics. Ask the place of

purchase for details when purchasing the brake shoes.

• 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 maintenance, please

contact the place of purchase.

Technical Service Instructions

SI-8A20A-003

Multi-Condition

Brake System

Multi-Condition Brake System

By providing superior wet weather braking performance (control and

modulation), braking performance will not vary in a multitude of conditions

when using this brake system.

In order to realize the best performance, we recommend that the

following combination be used.

BL-R600 / BL-R440 / ST-R600 / BL-R550 / BL-R770

ST-5600 / ST-5601 / ST-5603

Brake lever

ST-4500 / ST-4501 / ST-4503 / ST-3400 / ST-R500

(Clamp diameter: 23.8 mm/22.2 mm *1)

BR-R550

Cantilever brake

Brake cable

*1, *2 : BL-R440

Installation of the brake lever

Use a 5 mm Allen key to install the brake lever.

5 mm Allen key

Tightening torque:

6 – 8 N·m {52 – 69 in. lbs.}

Use a handlebar grip with a

5 mm Allen key

maximum outer diameter of 32 mm.

Tightening torque:

6 – 8 N·m {52 – 69 in. lbs.}

When installing the

components to carbon

frame/handle bar surfaces,

verify with the manufacturer

of the carbon frame/parts for

their recommendation on

tightening torque in order to prevent over tightening that can

cause damage to the carbon material and/or under tightening

that can cause lack of fixing strength for the components.

Installation of the cantilever brake

Insert the stopper pin of the brake body into the center spring

hole in the frame mounting boss, and then secure the brake

body to the frame with the link fixing bolt.

5 mm Allen key

Tightening torque:

5 – 7 N·m {43 – 61 in. lbs.}

Link fixing bolt

Spring hole

Stopper pin

Set the inner cable onto the cable carrier.

Temporarily tighten the inner cable so that the cable carrier is

at the position in the illustration.

Cable fixing bolt temporary

tightening torque:

0.5 – 1 N·m {5 – 8 in. lbs.}

Touching

5 mm Allen key

Turn the spring tension adjustment screw so that the cable

carrier comes to a position directly below the outer casing

holder.

Spring tension

adjustment screw

While holding the shoe against the rim, adjust the amount of

shoe protrusion by changing over the washer B (thick or thin).

Washer B (thin)

Washer B (thick)

Shoe fixing nut

10.

Adjustment

Washer

washer

Washer A

Shoe fixing link

While holding the shoe against the rim, tighten the shoe fixing

nut.

Tightening torque:

6 – 8 N·m {52 – 69 in. lbs.}

11.

5 mm Allen key

Loosen the cable fixing bolt, move the brake body so that the

clearance is 2 – 3 mm, and then secure the inner cable.

Flexible pipe

Tightening torque:

6 – 8 N·m {52 – 69 in. lbs.}

5 mm Allen key

Adjust the flexible pipe so that it touches the cantilever brake

Replacement of the cartridge shoe

body.

Remove the shoe fixing pin, and then slide the shoe along the

Outer casing holder

groove to remove it from the shoe holder.

20 mm or more

Cable carrier

Flexible pipe

Touching

There are two different types of shoe and shoe holder to be

used in the left and right positions respectively. Slide the new

shoes into the grooves on the shoe holders while taking note

of the correct directions and pin hole positions.

If the cable carrier is in the position in the illustration, then

setting is complete. Check to be sure that there is a clearance

of 20 mm or more between the outer casing holder and the

cable carrier as shown in the illustration for step 8. This is to

ensure that the cable carrier does not touch the outer casing

holder. If it does touch, the brakes will not work.

Shoe holder

Insertion of shoe fixing pin is very critical to keep shoe

properly fixed in place.

If balance adjustment is necessary, adjust with the spring

tension adjustment screw.

Spring tension

adjustment screw

Depress the brake lever about 10 times as far as the grip

and check that everything is operating correctly and that the

shoe clearance is correct before using the brakes.

Depress about

10 times

One Holland, Irvine, California 92618, U.S.A. Phone: +1-949-951-5003

Depress about

10 times

Industrieweg 24, 8071 CT Nunspeet, The Netherlands Phone: +31-341-272222

3-77 Oimatsu-cho, Sakai-ku, Sakai-shi, Osaka 590-8577, Japan

* Service Instructions in further languages are available at :

http://techdocs.shimano.com

Please note: specifications are subject to change for improvement without notice. (English)

Shoe fixing pin

Shoe

For the left

For the right

Same at front and rear

Front

Shoe

Shoe holder

Shoe

insertion

Shoe fixing pin

direction