View Full Version : Need help
WB5RVV
04-03-2007, 02:51 AM
I did a real stuip thing.But, My eye sight tricked me.Upon replacing a knob on a TS-520 Kenwood.I screwed the wrong end of the allen screw in first.How it went in so far,I do not understand.Anyway, anyone have an ideal how I can get it to come out so I can turn it around and screw it in right?
w4pjh
04-03-2007, 02:56 AM
Easy, super glue a toothpick or anything similar to it, let it set up, then unscrew it, break it off, cleean off the glue and screw it in RIGHT. http://www.qrz.com/iB_html/non-cgi/emoticons/tounge.gif Use ONLY ENOUGH GLUE TO STICK THE TOOTHPICK OR WHATEVER YOU USE TO THE SCREW!!!! Too much, and you're um... well... SCREWED!!!
WB5RVV
04-03-2007, 03:02 AM
Grat,never thought of that.Will let you know THANKS!!!
IT WORKED!!! THANKS TO ALL WHO TRIED TO HELP>
73s
Can you continue to screw it in so it comes out the middle of the knob and you can start again?
KI4HDW:
I had almost finished writing a post about the toothpick/super glue trick and you beat me to it.
I was going to suggest using a steel rod instead of a toothpick. Acetone-based nail polish remover will dissolve the glue and allow the screw to be reused.
There's a good chance the knob's internal threads were damaged by all of this, so you might have to go to a larger-diameter Allen screw for the repair.
ve2nsm
04-03-2007, 03:42 AM
the super glue idea is risky, but I'm not coming up with anything better so far http://www.qrz.com/iB_html/non-cgi/emoticons/tounge.gif
wa9cwx
04-03-2007, 03:42 AM
HOW did you get it scewed in? was the hollow point small enough for an allen wrench to fit in??
W0UZR
04-03-2007, 04:15 AM
On my fuel oil furnace there was these little plastic plugs that were in the oil holes. The "Flange" where you stick your finger nail under to pull it out broke off. Then on trying to get the thing out, it got pushed way into the hole.
So I took a small drill bit, put a teeny drop of super glue on the end that goes in the drill making sure that the little drop was exactly in the middle of the bit. Shoved it in the hole, ran a tape over the bit and to the motor and let it sit for a few days. Went back and took my pair of needle nose vise grips and clamped on and CARRRFULLLY pulled.
Didn't work! it came off,, It was too snug of a fit in there but it almost worked. But if that were an allen screw, I'm sure I would have been able to unscrew it.
W0UZR
04-03-2007, 04:19 AM
Quote[/b] (wa9cwx @ April 02 2007,21:42)]HOW did you get it scewed in? was the hollow pont small enough for an allen wrench to fit in??
Yes, and how DID you get that in backwards. I'm assuming you screwed it in by hand. What I do with allen set screws is put the screw on the allen wrench and put it up to the hole and screw it in.
VE4CFR
04-03-2007, 04:40 AM
Actually the fix is easy ... turn the knob inside out!!
OK seriously I think the superglue will work.
This is similar to getting broken cribbage board pegs out. Heat a straightened out paperclip and push it into the remains of the plastic peg. Wait till the plastic hardens back up and remove it.
J
k6jpd
04-03-2007, 10:55 AM
can you continue to screw it in until it goes all the way through?
or
use the allen wrench from the other side of the screw? (you may have to cut off part of the "L" on the wrench to fit inside the inner diameter hole of the knob).
or
drill a "centering" hole in the setscrew and then use an "easy-out".
or
drill and tap for a larger setscrew
or
buy a new knob
VE4CFR
04-03-2007, 11:50 AM
Quote[/b] (k6jpd @ April 02 2007,04:55)]drill a "centering" hole in the setscrew and then use an "easy-out".
Set screws are one of the hardest steels you will find. #I suspect a drill will just dance on it and probably break.
J
k6jpd
04-03-2007, 12:06 PM
Quote[/b] (VE4CFR @ April 03 2007,04:50)]Quote[/b] (k6jpd @ April 02 2007,04:55)]drill a "centering" hole in the setscrew and then use an "easy-out".
Set screws are one of the hardest steels you will find. #I suspect a drill will just dance on it and probably break.
J
yes, if it is a "real" setscrew made with hardened steel, but there are some that are made from soft metals like alum. #for low torque requirements.
#thinking of that, a few years ago, i used a device we called a "disintegrater". it was actually a "reverse" arc welder, and was great for removing screws/blowing holes in metal. http://www.qrz.com/iB_html/non-cgi/emoticons/tounge.gif(obviously, this is not a viable option in this case)
another idea, can you drill a small hole through the knob exactly 180 degrees opposite the set screw? then insert a longer allen wrench through it and just screw the set screw back out. good luck
K8MHZ
04-03-2007, 01:01 PM
Have you tried using a magnet?
KA4DPO
04-03-2007, 01:25 PM
These guys don't know anything about real radio repair. Knock the knob off with a hammer then buy a new rig.
Problem solved....
ve2nsm
04-03-2007, 01:32 PM
Quote[/b] (k6jpd @ April 03 2007,06:55)]can you continue to screw it in until it goes all the way through?
or
use the allen wrench from the other side of the screw? (you may have to cut off part of the "L" on the wrench to fit inside the inner diameter hole of the knob).
or
drill a "centering" hole in the setscrew and then use an "easy-out".
or
drill and tap for a larger setscrew
or
buy a new knob
Or drill a small hole exactly 180 degrees apart from the set screw hole so you can insert the allen wrench all the way through the knob.
Score:
Football - 10
Monkey - 0
W0UZR
04-03-2007, 06:19 PM
Quote[/b] (AG4YO @ April 03 2007,08:07)]Score:
Football - 10
Monkey #- #0
HuH ??
w4pjh
04-03-2007, 06:28 PM
Quote[/b] (w0uzr @ April 03 2007,11:19)]Quote[/b] (AG4YO @ April 03 2007,08:07)]Score:
Football - 10
Monkey - 0
HuH ??
It's just his usual self.... His way of calling everyone stupid. I wouldn't put much weight in it.
W0UZR
04-03-2007, 06:32 PM
oh
kl7aj
04-03-2007, 07:09 PM
Try the other end of the allen wrench. http://www.qrz.com/iB_html/non-cgi/emoticons/smile.gif
(Sorry...I couldn't resist.)
Eric
Quote[/b] (w0uzr @ April 03 2007,11:19)]Quote[/b] (AG4YO @ April 03 2007,08:07)]Score:
Football - 10
Monkey - 0
HuH ??
Nobody is "stupid". It's a joke. Watching this post is like watching a monkey trying to have amorous relations with a football. It's all over the field and the football is winning.
KA4DPO
04-03-2007, 08:32 PM
Quote[/b] (AG4YO @ April 03 2007,14:47)]Quote[/b] (w0uzr @ April 03 2007,11:19)]Quote[/b] (AG4YO @ April 03 2007,08:07)]Score:
Football - 10
Monkey #- #0
HuH ??
Nobody is "stupid". It's a joke. Watching this post is like watching a monkey trying to have amorous relations with a football. It's all over the field and the football is winning.
Knock that sucker off with a hammer..... http://www.qrz.com/iB_html/non-cgi/emoticons/smile.gif
ad1os
04-03-2007, 10:56 PM
I've used a lefthanded twist drill, at low speed, just nudging it into the screw end. It may take a lite bite and start it outward bound.
N4AUD
04-03-2007, 11:01 PM
Do you have an explosives contractor in your area? http://www.qrz.com/iB_html/non-cgi/emoticons/wink.gif
wa9cwx
04-03-2007, 11:11 PM
OK, I am going to hijack this thread with a little side note that was actually useful.
A few years ago, I had a very loose on/off switch on my Henry 2K4 Amp.
It 'worked' but the silly thing bugged me, it was very loose, and would turn the switch about 1/5th the way around before being stopped by the wireing, and switching on or off. The set scew was somehow welded on the hard bakelite(plastic?) knob, I BROKE a spline driver trying to unscrew it ( remember spline set scews?) !! It bugged me every time I used it.
The space BEHIND the knob was WAY to thin to get a wrench of any type around the switch securing nut.
Finall, it dawned on me to leave the knob where it was, it WAS doing its' job, and figure out just how to tighten the nut.
I cut one of those fake credit cards that come with credit applications in the mail to the size of the nut, slipped it behind the knob, and it fit so tight, that I was able to completely tighten the nut without even flexing the card.
Problem solved.
Now back to the regular program....
VE4CFR
04-04-2007, 12:43 AM
WB5RVV
The suspense is killing me !!! Did you manage to get it out?
Jeff
ai4ep
04-04-2007, 12:55 AM
cwx --- you did good. You used spare things lying around the house and fixed a problem.
That type of situation( fixing things yourself ) is becoming rare these days, and may not change any time soon.
There is no telling how many folks had / have a similar problem and modifying YOUR idea inspired them to come up with a way to fix what ever their little problem may be.
We all could use more posts like yours.
THANK YOU for sharing it with the rest of us.
k6jpd
04-04-2007, 11:23 AM
Quote[/b] (AG4YO @ April 03 2007,12:47)]Quote[/b] (w0uzr @ April 03 2007,11:19)]Quote[/b] (AG4YO @ April 03 2007,08:07)]Score:
Football - 10
Monkey #- #0
HuH ??
Nobody is "stupid". It's a joke. Watching this post is like watching a monkey trying to have amorous relations with a football. It's all over the field and the football is winning.
actually, some of the comments are standard practice and procedure in good machine shops (mine included).
however, a few of them are "OTL".
I have a sign in my shop, words to the effect:
$25.00/hour if I do it
$75.00/hour if you help
K7KBN
04-04-2007, 11:29 AM
I've seen that sign with an extra middle step:
"$50.00/hour if you watch."
N8CPA
04-04-2007, 11:50 AM
Quote[/b] (AG4YO @ April 03 2007,10:07)]Score:
Football - 10
Monkey #- #0
I've heard two versions of that. One involves the football. The other is the monkey singing,
"I got a loverly bunch a' coconuts"
http://www.qrz.com/iB_html/non-cgi/emoticons/biggrin.gif
kl7aj
04-04-2007, 03:33 PM
Quote[/b] (k7kbn @ April 04 2007,04:29)]I've seen that sign with an extra middle step:
"$50.00/hour if you watch."
Answers $1.00
Correct Answers $10.00
kl7aj
04-04-2007, 03:36 PM
Quote[/b] (kl7aj @ April 04 2007,08:33)]Quote[/b] (k7kbn @ April 04 2007,04:29)]I've seen that sign with an extra middle step:
"$50.00/hour if you watch."
Answers $1.00
Correct Answers $10.00
I s'pose this should be QRZ's motto. http://www.qrz.com/iB_html/non-cgi/emoticons/smile.gif
ka5piu
04-07-2007, 10:52 AM
Quote[/b] (w0uzr @ April 02 2007,21:15)]On my fuel oil furnace there was these little plastic plugs that were in the oil holes. The #"Flange" #where you stick your finger nail under to pull it out broke off. #Then on trying to get the thing out, it got pushed way into the hole.
So I took a small drill bit, put a teeny drop of super glue on the end that goes in the drill making sure that the little drop was exactly in the middle of the bit. Shoved it in the hole, ran a tape over the bit and to the motor and let it sit for a few days. #Went back and took my pair of needle nose vise grips and clamped on and #CARRRFULLLY #pulled.
# # # # # #Didn't work! it came off,, It was too snug of a fit in there but it almost worked. #But if that were an allen screw, I'm sure I would have been able to unscrew it.
Hello.
That is easy to get out.
Get a paper clip and make it straight.
Now, with a torch, make it hot and stick this into the center of the plug, making a hole.
After the paper clip cools you can put a bit of a bend in it with a visegrip and stick it back into the hole.
Carefully pull this cap out and you are all set.
Sometimes the plastic is so old that it will crack.
The soultion is to use a screw that is just a touch smaller than the hole but big enough to grip the plastic.
Make the screw a bit hot, just enough to make the plastic soft and screw this in.
Now, with a wet rag cool the screw.
Once the screw is fully cool, use it to pull the plastic out.
And, to remove superglue, make the item hot, just a bit above boiling will work fine.