[pianotech] Installing Twin Dollies

Rob McCall rob at mccallpiano.com
Tue Nov 3 19:48:25 MST 2009


Thanks Joe!

That's a really great idea obviously borne on experience!  :-)

My issue for tomorrow is that I don't have a tilter.  It's on my list,  
but just getting started in this business, it's not quite budgeted for  
yet...  Soon, I hope.

I'm going to save this and make the stackers when I get my tilter.

Thanks again!

Rob McCall
McCall Piano Service, LLC
Murrieta, CA

rob at mccallpiano.com
www.mccallpiano.com
951-698-1875



On Nov 03, 2009, at 07:46 , Joseph Garrett wrote:

>
> Rob McCall asked: "This Wednesday, I'll be installing my first set  
> of piano dollies for
> an upright. It's for a Yamaha P22 at a nearby Middle School. I
> ordered and have the Schaff #4009 twin dollies to install. (NOT the
> heavyweight one).
> I plan on mounting them permanently and would appreciate any tips,
> advice, tricks, caveats, provisos, stipulations, etc. that you are
> willing to share.
> Thanks in advance...
> Regards,"
>
> Rob,
>
> I've found it's best to put the piano on it's back, i.e. on a  
> tilter. That way you can attach the "saddles" to the bottom board  
> and the back with strong #12 or #16 round head Screws, like it was  
> designed. If you only attach to the back cross span the dolley will  
> be a bit unstable and will work loose after the many thresholds, etc.
> However putting the piano back on it's feet, with the new casters  
> sticking out, beyond the back of the piano, presents a stability  
> problem. This problem is best solved with two 4" x 6"ers or my  
> favorite spacers that I call "Stackers". I'll explain what those  
> are. Stackers are 2 (two) pieces of 3/4" plywood, (the cheap kind),  
> approximately 5 1/2" x 9". These are covered with carpet on one  
> side. AND 2" x 6"ers cut 9" long. These are drilled, through, while  
> stacked, with 3/8" drill in two places approximately 2" from the  
> length ends. When you drill the stack of 2" x 6"es, also put the  
> piece of 3/4" plywood in the stack and drill it half way through,  
> (3/8"). In each 2x6 glue 1" long  3/8" dowels into the 2"x6"s holes.  
> Insert them so that a 1/2" of the dowel is sticking out. Let set up.  
> Then, redrill the remaining part of the holes with a 13/32" drill  
> bit. This will allow the dowels to easily fit into the holes when  
> you stack the pieces. Now you can have a stacker that can be 2 1/4",  
> 4" or 5 1/2" tall. You need two of these to do the job at hand.
> When you start to tip the piano back on it's "feet", you'll find  
> there is a "balance point" where the piano is approximately at a 45  
> degree angle. At that point place the stackers on the floor in line  
> with where the bottom board will contact the top of the stacker  
> that's been placed the long way, front to back. Tip the piano onto  
> the stackers. I usually only use the 4" height for doing the regular  
> Twin Dolleys. For the large Twin Dolleys you may need to use eht 5  
> 1/2".
> The whole idea is to take the castor out of the contact point when  
> you are tipping it back to a vertical position. Once the piano is  
> vertical, again, then simply lift one end of the piano and remove  
> the stacker and set the piano on that twin dolley, at that end. Go  
> to the other end and repeat. Now the piano is safely on it's feet.  
> If you like you can remove just one stacker layer at a time and  
> bring the piano down in increments. I would advise having a helper.  
> It can be done by one person, but it'll be a lot safer with two.
> I hope this helps
> Joe
>
> Joseph Garrett, R.P.T. (Oregon)
> Captain, Tool Police
> Squares R I
>
>
>



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