User guide

Installaon Procedure

Installing the Sustain Pedal Trapwork...

Whenyouareatthepointwhereyouarereadytostartremovingtheoriginaltrapworksystemfromthepianowerec‐

ommendthatyoutracearoundthetrapcomponentsbeforeyouactuallyremovethem.Thisisjustagoodreference

shouldyouhavequesonsaboutleverage,strokeorplacement

aeryouhaveremovedeverything.Youshouldalso

tracearoundanythingelseyouwillberemovingsuchasthepianolegs.



Itisnormallyagoodideatoinstallthenewtrapcomponents(exceptfortheSostenuto)aeryouinstallthesolenoid

railbecausethereisonlyone

correctplacetherailcanbeinstalled,whereasthetrapcomponentsaresomewhatﬂexi‐

bleintheirplacement.Theﬁrstisdecidingifyouneedtomillanyareasofthekeybedbesidestherailslotitself.The

mostlikelyplacesthatwouldrequirespecialmillingwouldbeto

millarecessfortheSostenutoactuatorassemblysoit

canbemountedabovethesolenoidrail.Anothercasewouldbetomillapocketinthekeybedtoaccommodatetheup

mostposionofthesoshileversuchasonaSteinway.Youmightbemillinga

slotperpendiculartothesolenoidslot

toﬁtabridgesupportifyo ucan’tleaveonewhenyoucutthemainslot.Dependingonthesituaonyoumayneedto

drillanewholeforthesustaindowel.Itisimportanttorealizethesepossibiliesbeforeyoucut

theslot.Youdon’t

wanttocuttheslot,cleanupthemessandinstallthesolenoidrailjusttoﬁndoutyouneedtocutmorematerialto

accommodateapieceofthetraphardware!



Onceyouhavetheslotlaidoutontheboomofthekeybed

(werecommendusingasoapstoneormedpgrease

pencil),itwillbemucheasiertoconceptualizehowyouwillconﬁgurethetrapsystem.Withthelinesdrawnexactly

wheretheslotwillbecut,youwillbeabletotellwhatobstacleswillneedtobemoves,modi

ﬁedorworkedaround.

Forinstanceifyouareinstallinga88noterail,youwillimmediatelyseewhatneedstobedonetothepianolegs.(you

shouldhavetracedaroundthelegsbeforeyouremovethem.)Youcanmeasurethetotalwidthofthesolenoidrailand

so

shileverassembly,referencethismeasurementoﬀthefrontoftheslotlineyoudrewanddecideifyouneedto

movethelyreassemblyforwards.



Thechaptersthatfollowthisoverviewwillprovideexplanaons andgraphicdetailsthatwillhelpyourealizetheideas

behindthehardwaredesign.

Forthemostpart,youwillﬁndthatthehardwarewesupplywilladapteasilytoatypical

installaonbitkeepinmindthatthehardwarewehavedesignedcanbeeasilymodiﬁedtoadapttouniqueapplica‐

ons.Ifbendingalevertoﬁtyourpar

cularinstallaonﬁtsthebill,thenbendasneeded.It’syouringenuitythatﬁnal‐

izesthehardware’sconformity.

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