User guide

Installaon Procedure
12
Preparing the Key Solenoid Rail
In this chapter, we determine the throw of the key solenoid plunger in relaon to the piano acon’s key‐tail  travel.
We also  walk through the process of key solenoid alignment with respect to the piano acons keytails.When this
chapter’s work has been done, the solenoid rail
 will have  the  proper rail height and plunger throw.The mounng
bracketswillbeinplaceandreadyformounngtothepiano.

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Toolsneededincludethe2oponalrailsupportbracketsa11/32"nutdriver,
two rail bracket mounng screws, screwdriver, hacksaw, metal file, ruler
 and a pencil.The piano acon is on your
workbenchandthekeysarefacingawayfromyou.
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ThePianomaonKeySolenoidRailisshipped assembled.
Itscomponentpartsareasfollows:
Key Solenoid Plunger Throw...
Step 1.TotakeadvantageofPNOmaon'sbestreproducingcapabilies,itisessenalthattheplung‐
erthrowisslightlygreaterthanthekeytailli.

Notethefollowingmeasurements:
B.MeasuretheboomofthekeytailtothekeybedattheKEYTAILUPposion.
A.MeasuretheboomofthekeytailtothekeybedattheKEYTAILDOWNposion.
A
B
Keybed
Keyframe
Step 2. Takethekeylimeasurement“C”aboveandadd1/16"tocompensateforthefeltplung‐
erp.Thisisthemeasurementusedtofindtherestposionoftheplunger.
B=___________
A=___________

B‐A(C)=__________
Plunger Throw = C + 1/16” ______________