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Casters repositioned

  • 1.  Casters repositioned

    Registered Piano Technician
    Posted 24 days ago
    Hello all,
    I'm working on an old upright, and when I tipped it I found this situation:

    At some point, someone put on the new wheels without taking off the old ones, necessitating putting them in a different position.  Does this have any effect on the piano structurally or otherwise?  Should I try to move them to where the original wheels were, or just leave well enough alone?
    Thanks!

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    Laura Wright, RPT
    Ivory Keys Piano Service
    Durango CO
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  • 2.  RE: Casters repositioned

    Member
    Posted 24 days ago
    No problem, just higher. I hope the old casters do not vibrate at certain frequencies.

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    Regards,

    Jon Page
    mailto:jonpage@comcast.net
    http://www.pianocapecod.com
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  • 3.  RE: Casters repositioned

    Registered Piano Technician
    Posted 24 days ago

    The pedals will also be higher, and even a fairly small increase in pedal height can make pedaling uncomfortable for some players.

     

    Sent from Mail for Windows 10

     






  • 4.  RE: Casters repositioned

    Member
    Posted 24 days ago
    Agreed. I spent a fair amount of time trying to figure out how to change out older yamaha U1 casters trying to avoid the height issue, which was really present to a number of the pianists who use this piano. Finally got some from OEM old stock from Roger Gable. After trying numerous ideas out, maintaining existing height was necessary for the pianists, both in terms of keyboard height, and pedal height.  The organizers of the dance where is is used wanted it to move easily and the pianists didn't want anything changed...fair amount of sturm un drang...the old OEM caster saved the day.

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    Jim Ialeggio
    grandpianosolutions.com
    Shirley, MA
    978 425-9026
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  • 5.  RE: Casters repositioned

    Posted 23 days ago
    On these big old ones,,, to recess the double wheel Darnall casters,, I take a 3 1/4 or 3 1/2 hole saw (narrower than the width of the front leg base) and drill a hole in a piece of plywood.
    I use to do this with my Makita right angle drill. Now the larger cordless drills have a 1/2 inch chuck. Put your cordless on high speed and set the clutch. You won't break the pilot bit or your wrist.
    Take the piece of plywood and screw it centered over the wheel hole. Remove the pilot bit and using the plywood hole as a guide, cut to 1/2 inch depth and chisel out the edge. set your router depth and take out the center 1/2 to 3/4 inch. I think the Darnall casters raise the piano 3/4 inch over the old metal ones.
    Usually there is plenty of wood in these spots to recess that deep though the bottom board gets in the way and might have to be cut back first.
    Remember,, the back wheels on an upright are 1/4 inch higher than the front. Don't try and make it level,,, the back tilts to the front for a reason

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    Keith Roberts
    owner
    Hathaway Pines CA
    209-770-4312
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  • 6.  RE: Casters repositioned

    Registered Piano Technician
    Posted 22 days ago
    Thanks for the responses thus far, I always appreciate any input.
    However, I think my main question was misconstrued.  The newer casters were installed years and years ago by the client's father, probably just to make the big old thing easier to move.  I am less concerned with the height change (they are used to it or not really concerned); my question is to do with the different placement of the wheels, especially the back ones.
    I assume there was a reason back in the day for setting them in from the side of the piano as opposed to right on the edge as the new ones are.  I was wondering if this might have any effect on the body of the piano, such as stress on the plate or soundboard, etc., or if it has any affect on the actual balance of the piano.
    Thanks!

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    Laura Wright, RPT
    Ivory Keys Piano Service
    Durango CO
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