User guide
Installaon Procedure
18
Cung the Keybed Slot...
Toolsneededforthis chapterincludeacircularsaw(sabresawwithasufficientlylongblade/routermaybeused),a
powerdrillwithasharp1‐3/4"Forstnerbit(orwoodboringbit),variousscrewdrivers,aframesquare,apencil,atape
measure,andpaintthatmatchestheunderside
ofthepiano.
Atthispointthepianoisonitslegs,theaconisoutsideofthepianocaseandhasbeenmodifiedtoallowthekeytails
to protrude overthe rear of the key frame by 1‐1/4".Felts are aached to theundersides
of each key tail, andthe
originaltrapworkissllinplace.
Next, have an assistant press the sustain pedal.While he depresses it, measure the distance the pedal lyre li rod
moves and write it down.Likewise, measure the distance the damper li rail rises when the pedal
is pressed.This
measurementcanbetakenfrominsidethecase.Next,marktheexactlocaonoftheupwardextensionofthepedal
lyre'svercalrodsontothekeybedboom.Setthesemeasurementsasideforlatertrapworkinstallaon.
RepeattheabovestepwiththeSostenutopedal
(ifitexists).
Theremaybetwoormoreaconstopblocksinsidethecase. Theseblocksstoptheinseronofthegrandpianokey‐
boardattheproperlocaonandpreventitfromliingup offthekeybed.Intheevent that theseinterferewith
the
slottobecut,removebyforceappliedbyasharpchiselandhammer.
Removethelyrefromthepiano.
Turnthepianoonitsflatorbasssideandsecureit.Makeavisiblepencilmar koutliningthebassandthetreblelegs.
Next,removeeachlegmarking
themaccordingly(bass,treble,tail)andplaceinasafeareatopreventdamage.
Useapencilandmarkthelyrerodstrikepoints(wherethelyrerodshittheoriginaltrapwork)ontheboomofthe
keybed.Removealltrapwork,andotherpartsthatmayinterferewith
thekeybedmodificaonsfromtheundersideof
thepiano.
Usingatapemeasure,recordthedistancefromthefrontofthepianocasetothemarksyoupreviouslymadeinside
thecase.Dothisonboththebassandtrebleend.Callthisthedepthmeasurement.
Transferthe
slotmarksmadeontheinsideofthepianocasetotheundersideofthekeybe d.
For Upright installations, See Page 9.