User guide

Installaon Procedure
14
Key Solenoid Rail Assembly ‐ Solenoid to Key Alignment
Withthepianoacononyourworkbenchandthefrontsofthekeysfacingawayfromyou.Placethesolenoidrailon
theworkbenchinfrontofthekeytailsandputtheplungersinsidethesolenoids.Turnthesolenoidrailassemblyonits
side, sothat the plungers arenow
 parallel to the workbench surfaceand the felt plungerps are touching the back
endsofthepianokeys.Thefirstplungershouldstartallthewaytothelesideoftherail.Securetherailandacon
withthe twoclamps so theywill not moveduring
the alignment process.Markwhich side isbassand treble.Make
sureallthesolenoidplatesarefreemoving.Iftheyarenot,usean11/32”nutdrivertoloosenthem.

Thespacing betweenseconshas beenheld in checkby theintroducon of solenoidassemblypairs adjacent
to the
breaks.Becausenotallseconsona pianowillhaveaneven numberofnotes playedinthem, those which  havean
oddnumber willrequireamodifiedsolenoidassemblytoprovidetheaddionalnoterequired,andthismodifiednote
willbeplacedadjacent
toaseconbreakorateitherend.

Countthenumberofkeystobeplayedineachsecon.Ifthere isanevennumber,alignthesolenoidswithplungers
alreadyontherailwiththecentersoftheirrespecvekeytails.Ifthenumberofkeysto
beplayedisodd,simplyre‐
moveoneofthesolenoidsfromthedoublemounngbracketandconnuetothealignmentofthenextsecon.
Ifnecessary,cutawaytheunusedporonoftherail ends with a hacksawandfileoffallburrswith
ametalfile.Be
carefulnottocutawaytherailbracketmounngholes,orcutanysolenoidwires.

Mountall8railsupportbracketstotherailwiththe10‐32X7/16"screwsand#10externalstarwashers.
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Note: The distance from the boom of the keybed to the boom of the keytail felt should be equal to the distance
from the top of the solenoid plunger to the top of the rail mounng brackets.

At this stage,
the keysolenoids have been matched up with their corresponding keytails.The rail has been cut to
length,andtherailbracketsaachedinplace.Puttherailasideforfutureinstallaoninthepiano.
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