>I do use Locktite as well as the washer, though the last time I assembled >one of these I couldn't find the Locktite so I ended up using some CA glue. >Seemed to work fine. > >I am curious as to what people do when the original hole is too large. You >have to plug it, of course, and I suppose I would just cut a bunch of plugs >out of pinblock material and stack them into the hole. But after drilling >the new hole for the socket screw, it would seem to make sense to tap the >hole prior to trying to screw in the new socket screw. The proximity to the >rim presents a challenge for both in terms of speed. The last time I >installed these, without having to plug, I ended up taking a hacksaw to an >allen wrench of appropriate dimension and chucking it into a brace which >speeded up the process a bit (better than turning 12 or so screws in with a >small allen wrench. Other suggestions on how to deal with this would be >appreciated. David, We cut a thread into the inner rim before fitting our plate dome nuts (which have threaded rod lengths loctited into them with 680 grade effectively to become bolts). If you take a piece of threaded rod, of suitable length to clear the top of the outer rim, you can grind a section of the end away to form a primitive tap. This approach will work fine since we are only cutting a thread into the inner-rim wood. You can lock two nuts onto the top of the threaded rod for using a spanner or socket spanner when thread cutting, or you can locktite a nut or weld it to the top and keep it is a special tool. The cut inner rim threads reduce the torque loading on the dome nuts at assembly time, which keeps the plating looking un-mangled. Ron O. -- OVERS PIANOS - SYDNEY Grand piano manufacturers ________________________ Web: http://www.overspianos.com.au Email: mailto:ron@overspianos.com.au ________________________
This PTG archive page provided courtesy of Moy Piano Service, LLC