User guide

Installaon Procedure

Install the Universal Sostenuto Assembly...

Not used

Idenfy the piano’s Sostenuto type.

 Push ‐ TheSostenutoisengagedwhentheactuatorrisestowardthestrings.

 Pull ‐ TheSostenutoisengagedwhentheactuatordescendsawayfromthestrings.

 Steinway ‐ Partoftheassemblyisbuiltintotheacon.

Youwillneedtoorder theSteinwaySostenutoAssemblyfromQRS.



Part#70897

Drill hole here to pinch the staple.

Clamp to the Sostenuto rod here.

Use one of these three

holes for the “L” shaped

thread-rod.

TheseinstruconsexplainaPullTypeSostenutoinstallaon.

RemovetheexisngactuatoraachedtotheSostenutoblade.

Drillaholeinthenewactuatorforthestaple.



ConnecttheactuatortothestapleontheSostenutobar.Clamptheactuator

overthebarsothestapleispinchedbytheholejustdrilledandthelarge

holeclampsaroundtherod.Tightentheactuatorscrew.

Pushthe“L”shapedthreadrodthroughoneofthethreeholesin

theactua‐

torandsecurewiththelock‐nut.