Pianotech

Ha!  Mr. Schwartz indeed. ��

The lock mechanism does not remove easily, so don't bother trying that.  But you can check the lock plunger very easily – if you push it down a tiny bit and the buzz stops, that's the source!  Here's what to do:

• Push it down on top with the eraser end of a pencil. Check the screw on the bottom to be sure the little fallboard stop block is tight.
• Push down again on the plunger, but this time squirt a little wood glue (any kind that is slightly soft – Titebond, PVC-E are both fine) on either side (left and right side) of the plunger top.  The plunger has shoulders underneath that bear up against the underside of the lock plate. Putting some wood glue there stops the buzz quite permanently. It doesn't really stick to the metal, but it does act as a gap filler and cushion, so the plunger won't buzz any more.
• The long lid hinge is another very common source of cabinet buzzes.  You can verify this by simply lifting the fly leaf and playing – if the buzz stops, you found it! This is best fixed by first tightening all the small screws and fixing any overturned ones.  Then apply linseed oil to the gaps in the hinge – not the small joints between hinge loops, but at the open end of the hinge loops where they have been bent around the pin. Apply a bead of linseed oil there, work the hinge for a minute or so to get the oil worked in, the wipe off any excess.  Linseed oil gums up as it hardens, and will permanently stop the hinge buzzing – I've done this many times now with 100% effectiveness, including on my own piano at home.  Buzz free for about 10 years now!

Be cautious with the rags used to clean up linseed oil.  As it hardens it also gets hot, so if soaked paper towels are balled up and thrown away they can catch fire!  It is recommended that you spread rags out to dry someplace safe, then thrown them out after the oil has dried.

Good luck with this  The list of potential buzzes in pianos can go on forever, so the other advice I have with a really difficult to find buzz is to have a friend help.    2 piano tuners are definitely better than one in these cases.

Don Mannino

Kawai America

Ha!  Mr. Schwartz indeed. ��

The lock mechanism does not remove easily, so don't bother trying that.  But you can check the lock plunger very easily – if you push it down a tiny bit and the buzz stops, that's the source!  Here's what to do:

• Push it down on top with the eraser end of a pencil. Check the screw on the bottom to be sure the little fallboard stop block is tight.
• Push down again on the plunger, but this time squirt a little wood glue (any kind that is slightly soft – Titebond, PVC-E are both fine) on either side (left and right side) of the plunger top.  The plunger has shoulders underneath that bear up against the underside of the lock plate. Putting some wood glue there stops the buzz quite permanently. It doesn't really stick to the metal, but it does act as a gap filler and cushion, so the plunger won't buzz any more.
• The long lid hinge is another very common source of cabinet buzzes.  You can verify this by simply lifting the fly leaf and playing – if the buzz stops, you found it! This is best fixed by first tightening all the small screws and fixing any overturned ones.  Then apply linseed oil to the gaps in the hinge – not the small joints between hinge loops, but at the open end of the hinge loops where they have been bent around the pin. Apply a bead of linseed oil there, work the hinge for a minute or so to get the oil worked in, the wipe off any excess.  Linseed oil gums up as it hardens, and will permanently stop the hinge buzzing – I've done this many times now with 100% effectiveness, including on my own piano at home.  Buzz free for about 10 years now!

Be cautious with the rags used to clean up linseed oil.  As it hardens it also gets hot, so if soaked paper towels are balled up and thrown away they can catch fire!  It is recommended that you spread rags out to dry someplace safe, then thrown them out after the oil has dried.

Good luck with this  The list of potential buzzes in pianos can go on forever, so the other advice I have with a really difficult to find buzz is to have a friend help.    2 piano tuners are definitely better than one in these cases.

Don Mannino

Kawai America

Ha!  Mr. Schwartz indeed. ��

The lock mechanism does not remove easily, so don't bother trying that.  But you can check the lock plunger very easily – if you push it down a tiny bit and the buzz stops, that's the source!  Here's what to do:

• Push it down on top with the eraser end of a pencil. Check the screw on the bottom to be sure the little fallboard stop block is tight.
• Push down again on the plunger, but this time squirt a little wood glue (any kind that is slightly soft – Titebond, PVC-E are both fine) on either side (left and right side) of the plunger top.  The plunger has shoulders underneath that bear up against the underside of the lock plate. Putting some wood glue there stops the buzz quite permanently. It doesn't really stick to the metal, but it does act as a gap filler and cushion, so the plunger won't buzz any more.
• The long lid hinge is another very common source of cabinet buzzes.  You can verify this by simply lifting the fly leaf and playing – if the buzz stops, you found it! This is best fixed by first tightening all the small screws and fixing any overturned ones.  Then apply linseed oil to the gaps in the hinge – not the small joints between hinge loops, but at the open end of the hinge loops where they have been bent around the pin. Apply a bead of linseed oil there, work the hinge for a minute or so to get the oil worked in, the wipe off any excess.  Linseed oil gums up as it hardens, and will permanently stop the hinge buzzing – I've done this many times now with 100% effectiveness, including on my own piano at home.  Buzz free for about 10 years now!

Be cautious with the rags used to clean up linseed oil.  As it hardens it also gets hot, so if soaked paper towels are balled up and thrown away they can catch fire!  It is recommended that you spread rags out to dry someplace safe, then thrown them out after the oil has dried.

Good luck with this  The list of potential buzzes in pianos can go on forever, so the other advice I have with a really difficult to find buzz is to have a friend help.    2 piano tuners are definitely better than one in these cases.

Don Mannino

Kawai America

Ha!  Mr. Schwartz indeed. ��

The lock mechanism does not remove easily, so don't bother trying that.  But you can check the lock plunger very easily – if you push it down a tiny bit and the buzz stops, that's the source!  Here's what to do:

• Push it down on top with the eraser end of a pencil. Check the screw on the bottom to be sure the little fallboard stop block is tight.
• Push down again on the plunger, but this time squirt a little wood glue (any kind that is slightly soft – Titebond, PVC-E are both fine) on either side (left and right side) of the plunger top.  The plunger has shoulders underneath that bear up against the underside of the lock plate. Putting some wood glue there stops the buzz quite permanently. It doesn't really stick to the metal, but it does act as a gap filler and cushion, so the plunger won't buzz any more.
• The long lid hinge is another very common source of cabinet buzzes.  You can verify this by simply lifting the fly leaf and playing – if the buzz stops, you found it! This is best fixed by first tightening all the small screws and fixing any overturned ones.  Then apply linseed oil to the gaps in the hinge – not the small joints between hinge loops, but at the open end of the hinge loops where they have been bent around the pin. Apply a bead of linseed oil there, work the hinge for a minute or so to get the oil worked in, the wipe off any excess.  Linseed oil gums up as it hardens, and will permanently stop the hinge buzzing – I've done this many times now with 100% effectiveness, including on my own piano at home.  Buzz free for about 10 years now!

Be cautious with the rags used to clean up linseed oil.  As it hardens it also gets hot, so if soaked paper towels are balled up and thrown away they can catch fire!  It is recommended that you spread rags out to dry someplace safe, then thrown them out after the oil has dried.

Good luck with this  The list of potential buzzes in pianos can go on forever, so the other advice I have with a really difficult to find buzz is to have a friend help.    2 piano tuners are definitely better than one in these cases.

Don Mannino

Kawai America

Ha!  Mr. Schwartz indeed. ��

The lock mechanism does not remove easily, so don't bother trying that.  But you can check the lock plunger very easily – if you push it down a tiny bit and the buzz stops, that's the source!  Here's what to do:

• Push it down on top with the eraser end of a pencil. Check the screw on the bottom to be sure the little fallboard stop block is tight.
• Push down again on the plunger, but this time squirt a little wood glue (any kind that is slightly soft – Titebond, PVC-E are both fine) on either side (left and right side) of the plunger top.  The plunger has shoulders underneath that bear up against the underside of the lock plate. Putting some wood glue there stops the buzz quite permanently. It doesn't really stick to the metal, but it does act as a gap filler and cushion, so the plunger won't buzz any more.
• The long lid hinge is another very common source of cabinet buzzes.  You can verify this by simply lifting the fly leaf and playing – if the buzz stops, you found it! This is best fixed by first tightening all the small screws and fixing any overturned ones.  Then apply linseed oil to the gaps in the hinge – not the small joints between hinge loops, but at the open end of the hinge loops where they have been bent around the pin. Apply a bead of linseed oil there, work the hinge for a minute or so to get the oil worked in, the wipe off any excess.  Linseed oil gums up as it hardens, and will permanently stop the hinge buzzing – I've done this many times now with 100% effectiveness, including on my own piano at home.  Buzz free for about 10 years now!

Be cautious with the rags used to clean up linseed oil.  As it hardens it also gets hot, so if soaked paper towels are balled up and thrown away they can catch fire!  It is recommended that you spread rags out to dry someplace safe, then thrown them out after the oil has dried.

Good luck with this  The list of potential buzzes in pianos can go on forever, so the other advice I have with a really difficult to find buzz is to have a friend help.    2 piano tuners are definitely better than one in these cases.

Don Mannino

Kawai America

Ha!  Mr. Schwartz indeed. ��

The lock mechanism does not remove easily, so don't bother trying that.  But you can check the lock plunger very easily – if you push it down a tiny bit and the buzz stops, that's the source!  Here's what to do:

• Push it down on top with the eraser end of a pencil. Check the screw on the bottom to be sure the little fallboard stop block is tight.
• Push down again on the plunger, but this time squirt a little wood glue (any kind that is slightly soft – Titebond, PVC-E are both fine) on either side (left and right side) of the plunger top.  The plunger has shoulders underneath that bear up against the underside of the lock plate. Putting some wood glue there stops the buzz quite permanently. It doesn't really stick to the metal, but it does act as a gap filler and cushion, so the plunger won't buzz any more.
• The long lid hinge is another very common source of cabinet buzzes.  You can verify this by simply lifting the fly leaf and playing – if the buzz stops, you found it! This is best fixed by first tightening all the small screws and fixing any overturned ones.  Then apply linseed oil to the gaps in the hinge – not the small joints between hinge loops, but at the open end of the hinge loops where they have been bent around the pin. Apply a bead of linseed oil there, work the hinge for a minute or so to get the oil worked in, the wipe off any excess.  Linseed oil gums up as it hardens, and will permanently stop the hinge buzzing – I've done this many times now with 100% effectiveness, including on my own piano at home.  Buzz free for about 10 years now!

Be cautious with the rags used to clean up linseed oil.  As it hardens it also gets hot, so if soaked paper towels are balled up and thrown away they can catch fire!  It is recommended that you spread rags out to dry someplace safe, then thrown them out after the oil has dried.

Good luck with this  The list of potential buzzes in pianos can go on forever, so the other advice I have with a really difficult to find buzz is to have a friend help.    2 piano tuners are definitely better than one in these cases.

Don Mannino

Kawai America

Ha!  Mr. Schwartz indeed. ��

The lock mechanism does not remove easily, so don't bother trying that.  But you can check the lock plunger very easily – if you push it down a tiny bit and the buzz stops, that's the source!  Here's what to do:

• Push it down on top with the eraser end of a pencil. Check the screw on the bottom to be sure the little fallboard stop block is tight.
• Push down again on the plunger, but this time squirt a little wood glue (any kind that is slightly soft – Titebond, PVC-E are both fine) on either side (left and right side) of the plunger top.  The plunger has shoulders underneath that bear up against the underside of the lock plate. Putting some wood glue there stops the buzz quite permanently. It doesn't really stick to the metal, but it does act as a gap filler and cushion, so the plunger won't buzz any more.
• The long lid hinge is another very common source of cabinet buzzes.  You can verify this by simply lifting the fly leaf and playing – if the buzz stops, you found it! This is best fixed by first tightening all the small screws and fixing any overturned ones.  Then apply linseed oil to the gaps in the hinge – not the small joints between hinge loops, but at the open end of the hinge loops where they have been bent around the pin. Apply a bead of linseed oil there, work the hinge for a minute or so to get the oil worked in, the wipe off any excess.  Linseed oil gums up as it hardens, and will permanently stop the hinge buzzing – I've done this many times now with 100% effectiveness, including on my own piano at home.  Buzz free for about 10 years now!

Be cautious with the rags used to clean up linseed oil.  As it hardens it also gets hot, so if soaked paper towels are balled up and thrown away they can catch fire!  It is recommended that you spread rags out to dry someplace safe, then thrown them out after the oil has dried.

Good luck with this  The list of potential buzzes in pianos can go on forever, so the other advice I have with a really difficult to find buzz is to have a friend help.    2 piano tuners are definitely better than one in these cases.

Don Mannino

Kawai America

Ha!  Mr. Schwartz indeed. ��

The lock mechanism does not remove easily, so don't bother trying that.  But you can check the lock plunger very easily – if you push it down a tiny bit and the buzz stops, that's the source!  Here's what to do:

• Push it down on top with the eraser end of a pencil. Check the screw on the bottom to be sure the little fallboard stop block is tight.
• Push down again on the plunger, but this time squirt a little wood glue (any kind that is slightly soft – Titebond, PVC-E are both fine) on either side (left and right side) of the plunger top.  The plunger has shoulders underneath that bear up against the underside of the lock plate. Putting some wood glue there stops the buzz quite permanently. It doesn't really stick to the metal, but it does act as a gap filler and cushion, so the plunger won't buzz any more.
• The long lid hinge is another very common source of cabinet buzzes.  You can verify this by simply lifting the fly leaf and playing – if the buzz stops, you found it! This is best fixed by first tightening all the small screws and fixing any overturned ones.  Then apply linseed oil to the gaps in the hinge – not the small joints between hinge loops, but at the open end of the hinge loops where they have been bent around the pin. Apply a bead of linseed oil there, work the hinge for a minute or so to get the oil worked in, the wipe off any excess.  Linseed oil gums up as it hardens, and will permanently stop the hinge buzzing – I've done this many times now with 100% effectiveness, including on my own piano at home.  Buzz free for about 10 years now!

Be cautious with the rags used to clean up linseed oil.  As it hardens it also gets hot, so if soaked paper towels are balled up and thrown away they can catch fire!  It is recommended that you spread rags out to dry someplace safe, then thrown them out after the oil has dried.

Good luck with this  The list of potential buzzes in pianos can go on forever, so the other advice I have with a really difficult to find buzz is to have a friend help.    2 piano tuners are definitely better than one in these cases.

Don Mannino

Kawai America

Ha!  Mr. Schwartz indeed. ��

The lock mechanism does not remove easily, so don't bother trying that.  But you can check the lock plunger very easily – if you push it down a tiny bit and the buzz stops, that's the source!  Here's what to do:

• Push it down on top with the eraser end of a pencil. Check the screw on the bottom to be sure the little fallboard stop block is tight.
• Push down again on the plunger, but this time squirt a little wood glue (any kind that is slightly soft – Titebond, PVC-E are both fine) on either side (left and right side) of the plunger top.  The plunger has shoulders underneath that bear up against the underside of the lock plate. Putting some wood glue there stops the buzz quite permanently. It doesn't really stick to the metal, but it does act as a gap filler and cushion, so the plunger won't buzz any more.
• The long lid hinge is another very common source of cabinet buzzes.  You can verify this by simply lifting the fly leaf and playing – if the buzz stops, you found it! This is best fixed by first tightening all the small screws and fixing any overturned ones.  Then apply linseed oil to the gaps in the hinge – not the small joints between hinge loops, but at the open end of the hinge loops where they have been bent around the pin. Apply a bead of linseed oil there, work the hinge for a minute or so to get the oil worked in, the wipe off any excess.  Linseed oil gums up as it hardens, and will permanently stop the hinge buzzing – I've done this many times now with 100% effectiveness, including on my own piano at home.  Buzz free for about 10 years now!

Be cautious with the rags used to clean up linseed oil.  As it hardens it also gets hot, so if soaked paper towels are balled up and thrown away they can catch fire!  It is recommended that you spread rags out to dry someplace safe, then thrown them out after the oil has dried.

Good luck with this  The list of potential buzzes in pianos can go on forever, so the other advice I have with a really difficult to find buzz is to have a friend help.    2 piano tuners are definitely better than one in these cases.

Don Mannino

Kawai America

Ha!  Mr. Schwartz indeed. ��

The lock mechanism does not remove easily, so don't bother trying that.  But you can check the lock plunger very easily – if you push it down a tiny bit and the buzz stops, that's the source!  Here's what to do:

• Push it down on top with the eraser end of a pencil. Check the screw on the bottom to be sure the little fallboard stop block is tight.
• Push down again on the plunger, but this time squirt a little wood glue (any kind that is slightly soft – Titebond, PVC-E are both fine) on either side (left and right side) of the plunger top.  The plunger has shoulders underneath that bear up against the underside of the lock plate. Putting some wood glue there stops the buzz quite permanently. It doesn't really stick to the metal, but it does act as a gap filler and cushion, so the plunger won't buzz any more.
• The long lid hinge is another very common source of cabinet buzzes.  You can verify this by simply lifting the fly leaf and playing – if the buzz stops, you found it! This is best fixed by first tightening all the small screws and fixing any overturned ones.  Then apply linseed oil to the gaps in the hinge – not the small joints between hinge loops, but at the open end of the hinge loops where they have been bent around the pin. Apply a bead of linseed oil there, work the hinge for a minute or so to get the oil worked in, the wipe off any excess.  Linseed oil gums up as it hardens, and will permanently stop the hinge buzzing – I've done this many times now with 100% effectiveness, including on my own piano at home.  Buzz free for about 10 years now!

Be cautious with the rags used to clean up linseed oil.  As it hardens it also gets hot, so if soaked paper towels are balled up and thrown away they can catch fire!  It is recommended that you spread rags out to dry someplace safe, then thrown them out after the oil has dried.

Good luck with this  The list of potential buzzes in pianos can go on forever, so the other advice I have with a really difficult to find buzz is to have a friend help.    2 piano tuners are definitely better than one in these cases.

Don Mannino

Kawai America

Ha!  Mr. Schwartz indeed. ��

The lock mechanism does not remove easily, so don't bother trying that.  But you can check the lock plunger very easily – if you push it down a tiny bit and the buzz stops, that's the source!  Here's what to do:

• Push it down on top with the eraser end of a pencil. Check the screw on the bottom to be sure the little fallboard stop block is tight.
• Push down again on the plunger, but this time squirt a little wood glue (any kind that is slightly soft – Titebond, PVC-E are both fine) on either side (left and right side) of the plunger top.  The plunger has shoulders underneath that bear up against the underside of the lock plate. Putting some wood glue there stops the buzz quite permanently. It doesn't really stick to the metal, but it does act as a gap filler and cushion, so the plunger won't buzz any more.
• The long lid hinge is another very common source of cabinet buzzes.  You can verify this by simply lifting the fly leaf and playing – if the buzz stops, you found it! This is best fixed by first tightening all the small screws and fixing any overturned ones.  Then apply linseed oil to the gaps in the hinge – not the small joints between hinge loops, but at the open end of the hinge loops where they have been bent around the pin. Apply a bead of linseed oil there, work the hinge for a minute or so to get the oil worked in, the wipe off any excess.  Linseed oil gums up as it hardens, and will permanently stop the hinge buzzing – I've done this many times now with 100% effectiveness, including on my own piano at home.  Buzz free for about 10 years now!

Be cautious with the rags used to clean up linseed oil.  As it hardens it also gets hot, so if soaked paper towels are balled up and thrown away they can catch fire!  It is recommended that you spread rags out to dry someplace safe, then thrown them out after the oil has dried.

Good luck with this  The list of potential buzzes in pianos can go on forever, so the other advice I have with a really difficult to find buzz is to have a friend help.    2 piano tuners are definitely better than one in these cases.

Don Mannino

Kawai America

Ha!  Mr. Schwartz indeed. ��

The lock mechanism does not remove easily, so don't bother trying that.  But you can check the lock plunger very easily – if you push it down a tiny bit and the buzz stops, that's the source!  Here's what to do:

• Push it down on top with the eraser end of a pencil. Check the screw on the bottom to be sure the little fallboard stop block is tight.
• Push down again on the plunger, but this time squirt a little wood glue (any kind that is slightly soft – Titebond, PVC-E are both fine) on either side (left and right side) of the plunger top.  The plunger has shoulders underneath that bear up against the underside of the lock plate. Putting some wood glue there stops the buzz quite permanently. It doesn't really stick to the metal, but it does act as a gap filler and cushion, so the plunger won't buzz any more.
• The long lid hinge is another very common source of cabinet buzzes.  You can verify this by simply lifting the fly leaf and playing – if the buzz stops, you found it! This is best fixed by first tightening all the small screws and fixing any overturned ones.  Then apply linseed oil to the gaps in the hinge – not the small joints between hinge loops, but at the open end of the hinge loops where they have been bent around the pin. Apply a bead of linseed oil there, work the hinge for a minute or so to get the oil worked in, the wipe off any excess.  Linseed oil gums up as it hardens, and will permanently stop the hinge buzzing – I've done this many times now with 100% effectiveness, including on my own piano at home.  Buzz free for about 10 years now!

Be cautious with the rags used to clean up linseed oil.  As it hardens it also gets hot, so if soaked paper towels are balled up and thrown away they can catch fire!  It is recommended that you spread rags out to dry someplace safe, then thrown them out after the oil has dried.

Good luck with this  The list of potential buzzes in pianos can go on forever, so the other advice I have with a really difficult to find buzz is to have a friend help.    2 piano tuners are definitely better than one in these cases.

Don Mannino

Kawai America