Yeah, I looked for that after I got it off and I was lucky: the knob was barely on, apparently (enough to be a pain, though!).
The old setscrew had rusty threads about halfway down from the top. It should serve to remind everyone that, when cleaning these old knobs, it's the best idea to remove the setscrews completely and not reinsert them until everything is bone dry. I'll be taking a night off from cleaning this rig while my XYL and I go to a Durham Bulls game tonight... 73, Steve, W1ES/4 -----Original Message----- >From: Garey Barrell <k4...@mindspring.com> >Sent: Sep 7, 2011 10:51 PM >To: Steve Wedge <w1es1...@earthlink.net> >Cc: drakelist@zerobeat.net >Subject: Re: [Drakelist] Stuck screw in PTO knob. > >Steve - > >Be sure and inspect that shaft before you put the knob on again. Twisting >one off like that will >often leave a spiral groove with raised edges on the shaft. Burnish it down >until smooth with fine >sandpaper or steel wool. > >73, Garey - K4OAH >Glen Allen, VA > >Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line >and TR-4/C Service Supplement CDs ><www.k4oah.com> > > >Steve Wedge wrote: >> We have a winner! >> I could not get that screw to back out with PB Blaster, WD40, heat from the >> hair dryer, or freeze >> spray. I noticed the knob wasn't on overly tight (a good thing this time). >> I wiggled it and it >> loosened up a little, then held (gently) the shaft inside the frame (just >> inside of the ball >> bearings) with a stout needle-nosed pliers and turned whilst pulling. It >> came off! >> The screw was stripped in the CCW direction. I hit it with a little more PB >> Blaster, then >> heat-soaked it in a 250* oven for half an hour. Still no CCW, so turned it >> CW until it wouldn't >> go any further (the screw was so long, it hit the other side of the hole! >> With a little more PB, I >> coaxed it back in and got it out finally. Had some more setscrews in my >> hardware cabinet, so I'm >> all set with this one! >> Thanks to all for the suggestions. I was lucky to be able to twist the knob >> off so that I could >> turn the screw further in. >> 73, >> Steve Wedge, W1ES/4 >> "I can't complain, but sometimes I still do." >> - Joe Walsh >> If the above message appears, it came from Steve's Son of Laptop! >> >> ----- Original Message ----- >> *From:* Chuck Grandgent <mailto:ch...@chuckg.com> >> *To:* Steve Wedge <mailto:w1es1...@earthlink.net> >> *Sent:* Tuesday, September 06, 2011 9:22 PM >> *Subject:* Re: [Drakelist] Stuck screw in PTO knob. >> >> Hi Steve, >> >> WD-40 is not really a lubricant, it is a "water dispersal" (hence the >> "WD" in the name) >> mixture, though it has some lubricant properties. I have made that >> mistake myself, for >> example trying to use it to lubricate the hinges on the doors in the >> house, where 3-in-1 oil >> was clearly the better choice. >> >> I dunno what would be the recommended thing for your predicament, but >> I'm sure folk will chime in. >> >> For loosening up stuff on the 1950's tractors I got, "PB Blaster" is the >> chosen stuff, though >> it might be totally inappropriate here. Actually, another thing does >> come to mind... I >> rotate my own truck tires, and when the shop tightened them too much, >> Marvel Mystery Oil >> really did the trick, let it sit a few hours. >> >> Good luck, >> >> Chuck, K1OM >> >> On Tue, Sep 6, 2011 at 9:06 PM, Steve Wedge <w1es1...@earthlink.net >> <mailto:w1es1...@earthlink.net>> wrote: >> >> I've put a couple of drops of WD-40 down the hole after bending one >> screwdriver trying to >> get the setscrew backed out. >> Has anyone used anything else to free a stuck screw? I'm now >> wondering if the WD-40 might >> not swell the plastic, exacerbating the problem... >> _______________________________________________ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
