Caster repair

[Joe And Penny Goss]

Hi Roger,
Totally agree with your last statement. Cheepo is not the way to go if replacing the casters, and the customer should pay for the tools need to do the job as they will be seldom used by most techs there after. JMO
Joe Goss RPT
Mother Goose Tools
imatunr at srvinet.com
www.mothergoosetools.com
  ----- Original Message ----- 
  From: Roger Jolly 
  To: Pianotech List 
  Sent: Friday, September 29, 2006 8:51 AM
  Subject: Re: Caster repair


  At 11:46 PM 9/28/2006, you wrote:

    Thanks, Roger.
    I had wondered, if a 3" would do it, when I was thinking of using a hole saw.
    John M. Ross
    Windsor, Nova Scotia, Canada

  Hi John,
                 The 3" works well in most cases, and gives a nice clean result.  You may have to take some extra material from the bottom of the hole  to allow for the extra height of the casters, to correct the pedal height.  This will give a clean flat surface to mount the new flange on virgin wood.
  In some cases we have had to  increase the depth of the shaft hole. I don't like those cardboard shims as it raises the height of the piano, and leads to pedal complaints.  They also compress and the caster becomes loose.
  When the shaft hole is too wide in Diameter, we drill them out in a similar manner, and plug them with 1'1/2" dowel.   Glue the dowel in with 5min epoxy. Re drill to the correct size for a snug fit. If the supply house plugs fit, you are ahead of the game, but glue them in. The shaft needs to be snug 
  Drill out and plug the old screw holes,  Drill pilot holes for new screws in a clean area of wood. A note on mounting screws. They need to be wide enough that they fill the flange mounting holes.
    The end result will be a good solid mounting that will stand up in School use.  Well! As good as anything stands up in a school situation.
  The advantage of a Forsner bit over a hole saw.  You end up with a clean flat base to mount the flange.
  I know.  Forsner bits are expensive.  This is one time a canny Scotsman needs to splurge. :-\ 
  Charge a little extra and do the job right.

  Regards Roger
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