User manual SHIMANO BR-R450 TECHNICAL INSTRUCTIONS

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Manual abstract: user guide SHIMANO BR-R450TECHNICAL INSTRUCTIONS

Detailed instructions for use are in the User's Guide.

 [. . . ] SI-8EV0A-002-00

General Safety Information
WARNING -Toavoidseriousinjuries:
· Improperuseofyourbicycle'sbrakesystemmayresultina lossofcontroloranaccident, whichcouldleadtoasevere injury. Becauseeachbicyclemayhandledifferently, besureto learntheproperbrakingtechnique(includingbrakelever pressureandbicyclecontrolcharacteristics)foryourbicycle.  Consultyourbicycledealerandthebicycle'sownersmanual,  andpracticeyourridingandbrakingtechnique. · Ifthefrontbrakeisappliedtoostrongly, thewheelmaylock andthebicyclemayfallforward, andseriousinjurymayresult.  [. . . ] · Checkthebrakecableforrustandfraying, andreplacethe cableimmediatelyifanysuchproblemsarefound. Ifthisisnot done, thebrakesmaynotworkcorrectly. · Alwaysmakesurethatthefrontandrearbrakesareworking correctlybeforeyouridethebicycle. · Therequiredbrakingdistancewillbelongerduringwet weather.  Reduceyourspeedandapplythebrakesearlyandgently. · Iftheroadsurfaceiswet, thetireswillskidmoreeasily. Ifthe tiresskid, youmayfalloffthebicycle. Toavoidthis, reduce yourspeedandapplythebrakesearlyandgently. · ReadtheseTechnicalServiceInstructionscarefully, andkeep theminasafeplaceforlaterreference. 
Outercasing Innercableend Outercasing

SI-8EV0A-002

3. Temporarilysecuretheoutercasingtothehandlebar(by usingtapeorsimilarmaterial). 
Outercasing

2. Brake shoe setting position

BR-R450

CaliperBrake

Afteradjustingthebrakeshoepositionsothattheshoe surfaceandtherimsurfaceareasshownintheillustration,  tightentheshoefixingbolt. 

6. Check

Depressthebrakeleverabout10timesasfarasthegripand checkthateverythingisoperatingcorrectlyandthattheshoe clearanceiscorrectbeforeusingthebrakes. 

FOR WARD

Direction of rim rotation Direction of rim rotation Depress about 10 times

Technical Service Instructions
Tape

Toe-in 0. 5 mm

Inordertorealizethebestperformance, werecommendthatthe followingcombinationbeused. 
Brakelever CaliperBrake Brakecable

ST-4500 / ST-3400 / ST-2200

4. Thenwrapthehandlebarwithhandlebartape. 
Note:
· Cutthecableatthelengthatwhichitisnotpulledtight whenthehandlebaristurnedallthewaytotheleftand right. · Ifasqueakingnoiseoccursafteralongperiodofuse,  lubricatetheparts. A

Note:
TheBR-R450allowstheangleofcontactbetweenthe shoeandtherim(toe-in)tobeadjusted. Adjustingthe toe-inmakesitpossibletoobtainsmootherbraking operation. 

BR-R450

Installation of the brake lever

1. 
FOR WARD

1 mm or more
A A
Shoefixingbolt

5mmAllenkey

4mmAllenkey

Tightening torque: 6 ­ 8 N·m {52 ­ 69 in. lbs. }

Tightening torque: 5 ­ 7 N·m {43 ­ 61 in. Cable connection 2. 
Cablehook Innercableend

Setthequickreleaselevertotheclosedposition;thenadjust theshoeclearance(asshownintheillustrationbelow)and securethecable. 

Installation of the brake

Cable bolt tightening torque: 6 ­ 8 N·m {52 ­ 69 in.  [. . . ] · Foranyquestionsregardingmethodsofhandlingor maintenance, pleasecontacttheplaceofpurchase. 
Installationbolt Cablehook

2

1

2

1

5. Readjustment of the shoe clearance
Cableadjustmentbolt

Turnthecableadjustmentbolttoreadjusttheshoeclearance. 

3 4
One Holland,  Irvine,  California 92618,  U. S. A. Phone: +1-949-951-5003 Industrieweg 24,  8071 CT Nunspeet,  The Netherlands Phone: +31-341-272222

A=B A + B = 3 -- 4 mm

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

* erviceInstructionsinfurtherlanguagesare S availableat:http://techdocs. shimano. com
Pleasenote:specificationsaresubjecttochangeforimprovementwithout notice. (English) ©Nov. 2010byShimanoInc. XBCIZMPrintedinMalaysia. 

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