Exactly which is why I suggested a good solid head for the power tool. Stupidity, carelessness or the wrong sized bits during usage is what causes messed up heads. Use the right sized screw driver or bit for the screw slot. If the screw heads are stripped badly, I wouldn't bother putting them in again for the next person. That next person just might be YOU. Replace them if possible. Might be a bit of a pain to do it but, for the most part, those screws are the same width so carry some along with you. There are plenty of them out there to work on. You can have them all if you want? :-) -----Original Message----- From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Ron Nossaman Sent: Sunday, November 15, 2009 10:05 PM To: pianotech at ptg.org Subject: Re: [pianotech] Kimball Console Action Holddown Screws John Ross wrote: > I thought I had read that the heads were slightly damaged. > But then again, I have had mis-thoughts before. :-( > Sometimes, I have just managed to get a damaged screw out, and it goes back > in fine, because, I am bearing against, the undamaged part of the screw. I've found that the damage was done in the driving, spinning the bit in the head with a power tool, so getting it back in (and seated) will likely be harder than getting it out. If lubricating it will allow it to go back in by hand, it'll likely come back out at least as easily - someday. >I > am thinking of mainly Phillips. But the next guy/gal might have a problem, > trying to remove them. Yes, they're Phillips. It's tough to spin a bit in a slotted or Robertson screw to the point that they're hard to remove. A large part of the problem removing them is that they were installed so bloody tight that the bit spun in the head in the first place. Hence the lubrication. If that doesn't make it possible, then you replace them at whatever expense is incurred. > Naturally, if the head were undamaged, I would lubricate and replace. > Sometimes a damaged head can be made better with a hacksaw or file. There's no such thing as an undamaged Kimball screw. It's like Nessie or Elvis sightings. The point is, how perfect does the head have to be to get the screw back in or out the VERY few times this will be necessary in the piano's lifetime? If lubrication will enable this with the existing screw, why spend the customer's money for chasing down replacement screws that won't do anything the originals don't? I seem to be in an extremely narrow minority here. Ron N _____ avast! Antivirus <http://www.avast.com> : Outbound message clean. Virus Database (VPS): 091115-1, 11/15/2009 Tested on: 11/15/2009 10:05:36 PM avast! - copyright (c) 1988-2009 ALWIL Software.
This PTG archive page provided courtesy of Moy Piano Service, LLC