General Safety Information

WARNING

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Becarefulnottoletthecuffsofyourclothesgetcaughtinthechainwhileriding,otherwiseyoumayfalloffthe

bicycle.

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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.

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Obtain and read the service instructions carefully prior to installing the parts.Ifadjustmentsarenotcarriedout

correctly,thechainmaycomeoffandthismaycauseyoutofalloffthebicyclewhichcouldresultinserious

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Iftheamountofloosenessinthelinksissogreatthatadjustmentisnotpossible,youshouldreplacethe

derailleur.

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Whenthechainisinthepositionshownintheillustration,the

chainmaycontactthefrontchainringsorfrontderailleurand

generatenoise.Ifthenoiseisaproblem,shiftthechainontothe

next-largerrearsprocketortheoneafterifthechainisinthe

positionshowninFigure1.Shiftthechainontothenext-smaller

sprocketortheoneafterifitisinthepositionshowninFigure2.

Fig.1 Fig.2

Front

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Shimanodoesnotprovidethebottombracketmountxingbolts.

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Forsmoothoperation,usethespeciedoutercasingandthebottombracketcableguide.

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Partsarenotguaranteedagainstnaturalwearordeteriorationresultingfromnormaluse.

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FormaximumperformancewehighlyrecommendShimanolubricantsandmaintenanceproducts.

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Foranyquestionsregardingmethodsofinstallation,adjustment,maintenanceoroperation,pleasecontacta

professionalbicycledealer.

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BesuretoreadtheserviceinstructionsfortheFrontDriveSysteminconjunctionwiththeseserviceinstructions.

Technical Service Instructions SI-5N30A-001

FD-M780 / FD-M780-E

FD-M781 / FD-M781-D

Frontchainwheeltoothdifference 18T

Min.differencebetweentopandintermediate 10T

Frontderailleurinstallationbanddiameter S,M,L – S,M,L –

Chainstayangle(α) 66°-69°

Applicablechainline 50mm

Applicablefrontchainwheel Fortriplechainwheelonly(42-32-24T)

Installation of the front derailleur

For bracket type

Installasshownintheillustration.

FrontDerailleur

Bolt

AdapterAdapter

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xingstrengthforthecomponents.

Aftertakinguptheinitialslackinthecable,re-securetothefrontderailleur

asshownintheillustration.

< Normal type > < Top route type >

Smallest

sprocket

Largest

chainring

tothelargestsprocket,andatthefront,set

thechaintotheintermediatechainring.

Adjustusingtheoutercasingadjustment

barrelsothattheclearancebetweenthechain

guideinnerplateandthechainis0-0.5mm.

Chain

Largest

sprocket

Intermediate

chainring

Ifthechainfallstothecrankside. Tightenthetopadjustmentscrew

clockwise(about1/4turn).

Ifshiftingisdifcultfromthe

intermediatechainringtothe

largestchainring.

Loosenthetopadjustmentscrew

counterclockwise

(about1/8turn).

Ifshiftingisdifcultfromthe

intermediatechainringtothe

smallestchainring.

Loosenthelowadjustmentscrew

counterclockwise

(about1/4turn).

Ifthechaindoesnotshift

smoothlyfromtheintermediate

Turntheoutercasingadjustment

barrelabout1/4ofaturn

eventhoughthelowadjustment

bolthasbeenadjusted.

Ifthereisinterferencebetween

thechainandthefrontderailleur

innerplateatthelargest

chainring.

Tightenthetopadjustmentscrew

clockwise(about1/8turn).

Ifthereisinterferencebetween

thechainandthefrontderailleur

outerplateatthelargest

chainring.

Loosenthetopadjustmentscrew

counterclockwise

(about1/8turn).

isshiftedtothelargestsprocket

whenthechainwheelisatthe

intermediatechainringposition.

Ifthechainfallstothebottom

bracketside.

Tightenthelowadjustmentscrew

clockwise(about1/2turn).

Iftheleverisstiffwhenshifting

fromtheintermediatechainringto

thelargestchainring.

Loosenthetopadjustmentscrew

counterclockwise(about1/4turn).

Installtheinnerholecoverbyturningitas

shownintheillustrationuntilitstops.

FD-M780

FD-M780-E

Lowadjustment

screw

Donotforcethemodeselectswitchtoturn.Ifyouforceittoturn,itwill

break.

Innercable

Lever(B)

Innerholecover

One Holland, Irvine, California 92618, U.S.A. Phone: +1-949-951-5003 Industrieweg 24, 8071 CT Nunspeet, The Netherlands Phone: +31-341-272222 3-77 Oimatsu-cho, Sakai-ku, Sakai-shi, Osaka 590-8577, Japan

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ServiceInstructionsinfurtherlanguagesareavailableat:http://si.shimano.com

Pleasenote:specicationsaresubjecttochangeforimprovementwithoutnotice.(English)©Nov.2014byShimanoInc.HTR