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Knabe grand action removal

  • 1.  Knabe grand action removal

    Posted 05-30-2023 17:20
    I have a customer with a 19th century Knabe grand. I need to remove the action and cannot find the screw or device keeping the action from releasing and sliding out. Anybody experienced this on old Kenabe’s?
    Sent from my iPhone


  • 2.  RE: Knabe grand action removal

    Member
    Posted 05-30-2023 19:59

    Try pressing down onA0 and looking for a screw going through the cheek block at an angle. Same thing on note 88 - screw going down through the cheek block. There also may be little pieces of wood over the pins coming out the side of the front key frame rail. one at the bass end other at treble 



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    James Kelly
    Owner- Fur Elise Piano Service
    Pawleys Island SC
    (843) 325-4357
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  • 3.  RE: Knabe grand action removal

    Registered Piano Technician
    Posted 05-31-2023 01:05

    Often there is an oversized lyre screw replacement that penetrates the action.  If you can swivel or pivot the action around a short arc you might even figure out which screw is the culpret.

    Usually the screw only protrudes a short distance into the action and sawing off the tip is enough to get back to functioning.



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    Blaine Hebert RPT
    Duarte CA
    (626) 795-5170
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  • 4.  RE: Knabe grand action removal

    Registered Piano Technician
    Posted 05-31-2023 01:35

    Is it possible that some piano mover put the wrong screws (longer) in the side legs and screwed the keyframe to the keybed? I have seen this several times over the years.



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    Tremaine Parsons RPT
    Georgetown CA
    (530) 333-9299
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  • 5.  RE: Knabe grand action removal

    Posted 05-31-2023 09:55
    I'll take a look at that, I'll be there later this afternoon. Trying to figure this out. Got a couple of great suggestions from this forum.

    Sent from my iPhone





  • 6.  RE: Knabe grand action removal

    Registered Piano Technician
    Posted 05-31-2023 22:04

    Please let us know.  We don't know how long we can hold our breath!



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    Blaine Hebert RPT
    Duarte CA
    (626) 795-5170
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  • 7.  RE: Knabe grand action removal

    Posted 06-01-2023 00:22
    Don't hold your breath, I can't find any way to get this thing out. Can't find a screw anywhere on the side of the keyped. Screws have been replaced in the lyre, backing them out, hasn't helped. Anyone with an additional suggestion as welcome.

    Sent from my iPhone





  • 8.  RE: Knabe grand action removal

    Registered Piano Technician
    Posted 06-01-2023 00:43

    Keep at it.  Where there is a will there is a way.  Just try not to destroy the piano while finding that way.



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    Blaine Hebert RPT
    Duarte CA
    (626) 795-5170
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  • 9.  RE: Knabe grand action removal

    Registered Piano Technician
    Posted 06-01-2023 02:16

    Would this piano be a former player?  Was the trapwork modified at some point?  Is there a slot or holes in the keybed where plungers were formerly installed?  If so, you will need to remove the pedals/lyre.  With a flashlight, look up into the action cavity and you'll find a block of wood with some screws holding it in place.  Remove the screws and the wood block.  Then the action will come out.



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    Paul McCloud, RPT
    Accutone Piano Service
    www.AccutonePianoService.com
    pavadasa@gmail.com
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  • 10.  RE: Knabe grand action removal

    Registered Piano Technician
    Posted 06-01-2023 07:53

    Does the action shift. Can you use a thin blade to lift the front rail to find out where it is attached.



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    Larry Messerly, RPT
    Bringing Harmony to Homes
    www.lacrossepianotuning.com
    ljmesserly@gmail.com
    928-899-7292
    ------------------------------



  • 11.  RE: Knabe grand action removal

    Posted 06-01-2023 11:49
    Thank you

    Sent from my iPhone





  • 12.  RE: Knabe grand action removal

    Registered Piano Technician
    Posted 06-01-2023 10:34

    The purpose of the block of wood as I mentioned is to provide a new contact point for the unacorda lever.  The lever had to be moved because of the plungers and pneumatic actuators.  If I'm correct, this block will be visible in a large cutout which may or may not be visible with the lyre attached.  If you remove the lyre and find this large cutout, shine a flashlight up in there and you'll see this block attached with screws to the underside of the keyframe.  That's what's preventing the action from coming out.  I had a Knabe with a player that had this arrangement, as well as a Weber and another player that I recently serviced.  The block looked identical in each case, and the same type of screws.

    If it's not a player, see if you can remove the unacorda lever.  That may be what's preventing the action from coming out.  In any case, if the action seems to be moving out a little, but not all the way, I'm quite sure there's this block in there that you need to remove.

     



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    Paul McCloud, RPT
    Accutone Piano Service
    www.AccutonePianoService.com
    pavadasa@gmail.com
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  • 13.  RE: Knabe grand action removal

    Registered Piano Technician
    Posted 06-01-2023 10:49
    I like this idea, I’ve seen it several times as well as 19th C grands where the una corda lever simply has to be dropped down to let the action come out.


    ---Dave
    New Orleans

    Sent from my phone, forgive typos!




  • 14.  RE: Knabe grand action removal

    Member
    Posted 06-01-2023 08:58

    Take some good pictures with good lighting into the action cavity check under the keybed for any screws past the lyre that are countersunk. Look straight down from above the strings to see if there are screws going down through the keyframe . Get a thin strip of metal or take the end off  tape measure insert it under the front rail and above the keybed and move it around to see if it hits a screw. If the piano has una chorda left or right shift lever it could be hanging up on the slot/action rail. If none of these things work fuhgetaboutit



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    James Kelly
    Owner- Fur Elise Piano Service
    Pawleys Island SC
    (843) 325-4357
    ------------------------------



  • 15.  RE: Knabe grand action removal

    Posted 06-01-2023 10:00
    I have seen older actions that had to be lifted before coming out.






  • 16.  RE: Knabe grand action removal

    Posted 06-01-2023 11:49
    I'm going to try all of those, and after two trips to this Piano, if that doesn't do it, I will forget about it

    Sent from my iPhone





  • 17.  RE: Knabe grand action removal

    Registered Piano Technician
    Posted 06-02-2023 08:09
    Hi, 
    Sorry if I'm repeating anything.  I had a grand moved to my shop and had the same situation.  I took a good study of the legs and found that they had a hole to access the screws that hold the key block down through the the key bed. But the legs had been mixed up by the movers.  I had to take the legs off to find the screws. And put the legs back on in the right place.  

    If your knabe was a player piano ( by its age I'd say it's not) an x-player might have the soft pedal trap work binding and you might have to remove the lyre to pull the action. 

    With enough light and time you'll figure it out.  Good luck

    --
    Sent from Gmail Mobile





  • 18.  RE: Knabe grand action removal

    Posted 06-02-2023 09:24
    Thanks Jessica for taking the time, the date I haven't figured it out on the other hand I have lost most of my hair

    Sent from my iPad





  • 19.  RE: Knabe grand action removal

    Posted 06-01-2023 08:39

    In a 19th century Knabe with an open face pinblock, examine the block and plate structure. If the pinblock is twisting down, it may be jamming against the action.



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    Ed Sutton
    ed440@me.com
    (980) 254-7413
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  • 20.  RE: Knabe grand action removal

    Posted 06-01-2023 11:49
    Thank you, I will give that a good look

    Sent from my iPhone





  • 21.  RE: Knabe grand action removal

    Registered Piano Technician
    Posted 06-02-2023 09:11
    I have also run into Knabes that had small, semicircular spring clips screwed into the keybed, maybe an inch in diameter. Their purpose was to clamp down on either the balance rail (or the front rail, i don't remember).
    The action could be pulled out a little and then had to be lifted over these clips. 
    Once successful, I removed the little clips and did not replace them.
    Nancy Salmon, RPT





  • 22.  RE: Knabe grand action removal

    Registered Piano Technician
    Posted 06-01-2023 10:53

    Some early Bosendorfer actions have to be carefully lifted and pulled out at an angle  (1844)



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    Parker Leigh
    Winchester VA
    (540) 722-3865
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  • 23.  RE: Knabe grand action removal

    Posted 06-01-2023 12:47
    Thank you very much, I will certainly try everything and appreciate you taking the time

    Sent from my iPhone





  • 24.  RE: Knabe grand action removal

    Registered Piano Technician
    Posted 06-01-2023 13:04

    I had an early 1900's grand where the front rail of the keyframe was screwed to the keybed in 3 or 4 places about an inch behind and below the key slip. Designed to use a tuning lever to unscrew the screws.



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    Tremaine Parsons RPT
    Georgetown CA
    (530) 333-9299
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  • 25.  RE: Knabe grand action removal

    Posted 06-02-2023 14:28
    Thank you, that's one I wasn't expecting

    Sent from my iPhone





  • 26.  RE: Knabe grand action removal

    Posted 06-02-2023 16:11
    Thanks Dave the unicorda I may well be the problem 

    Sent from my iPhone

    On Jun 2, 2023, at 12:27 PM, dennis van valkenburgh <dennisv44@yahoo.com> wrote:

    Thank you, that's one I wasn't expecting

    Sent from my iPhone





  • 27.  RE: Knabe grand action removal

    Member
    Posted 06-05-2023 09:17

    Please let us know if you get it freed up. My vote is for the una chorda lever which you can drop from under the piano, the screws mentioned by Tremaine through the key frame. If you can pry up the front rail and get a very thin piece of spring steel like the soundboard cleaning wand you may be able to hit screwsyou can not see. Nancy is also right about spring clips which can have a real clamping grip especially if rusted. 

    Do you have a serial number and model number for the Knabe ?



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    James Kelly
    Owner- Fur Elise Piano Service
    Pawleys Island SC
    (843) 325-4357
    ------------------------------



  • 28.  RE: Knabe grand action removal

    Posted 06-05-2023 10:18
    I will let you know what I find, searching for screws with the cleaning wand is my next move. No serial number in sight 

    Sent from my iPhone





  • 29.  RE: Knabe grand action removal

    Registered Piano Technician
    Posted 06-06-2023 13:52

    A client has a Knabe from around 1897 that I'll be working on soon, so I'm definitely interested in your findings.  FYI, on these older model Knabe grands, the serial number is usually printed right under the soundboard decal.  Hope this helps!



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    Tim Foster
    New Oxford PA
    (470) 231-6074
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  • 30.  RE: Knabe grand action removal

    Posted 06-06-2023 16:41
    It does. Thank you.

    Sent from my iPhone