APSCO portable piano tilter

[Paul S. Larudee]

List,

I finally bit the bullet and bought a portable piano tilter from APSCO a
couple of months ago because I'm tired of the acrobatics I have to do in
my van when I take my larger one from Schaff to a job site.  Used it for
the first time last week, and it's great except that it comes with two
clamps which are supposed to be used to lock the tilter to the frame
posts.

I tried every conceivable way that I could think of to use those clamps,
without success.  For the information of those who don't have one, the
clamps are 1/2" threaded steel rods about 8" long with a small plate
roughly 1" x 2" welded on one end in a plane perpendicular to the axis
of the rod.  A piece of angle iron of roughly the same size slides
loosely along the rod by means of a hole in one arm of the angle. 
Finally, a large wing nut screws onto the free end of the rod.

The clamp is clearly designed so that the welded plate gets braced on a
post while the angle iron fastens onto the tilter and the wing nut
tightens it in place.  Problem is I can't figure out any way to make the
angle iron fasten anywhere and tighten the nut.  I can of course bypass
the problem by not using the clamps, which is what I did on this job,
and use straps instead.  If there is a right way to use them, however, I
would be interested to know.

It is almost impossible to respond to this unless you own one of these
things, because of all the dimensions of the parts and the way they fit
together (or don't).  Anybody got one and had to deal with this?

Thanks.

Paul S. Larudee, RPT
Richmond, CA