Re: [Elecraft] Problem with a K3 screw
This is s off topic, but I once worked in a carpentry shop where acetone was used to clean contact cement from veneer. On my first day at work, I sat down to eat lunch with my co-workers. After a few seconds, I suddenly felt like my butt was on fire! I jumped up to roars of laughter to find that one of the guys had put a rag that had traces of acetone on it on my chair. I wonder if there are latent defects after all these years? On 12/29/2012 11:16 AM, Fred Townsend wrote: I have shut down production lines because someone snuck acetone onto the line for cleaning. It doesn't have to come in contact to damage plastics and other encapsulating materials used for electronic parts. The vapors are enough to cause latent defects that may take years to mature. -- Vic, K2VCO Fresno CA http://www.qsl.net/k2vco/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Problem with a K3 screw
Ron, Great advice... Thank You!!! 73, Bill K9YEQ K2 FT, KX1 FT, KX3 FT, KAT500 FT -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ron D'Eau Claire Sent: Friday, December 28, 2012 1:09 PM To: 'P.J.Hicks'; elecraft@mailman.qth.net Subject: Re: [Elecraft] Problem with a K3 screw Be careful with locktight. It v-e-r-y s-l-o-w-l-y dissolves many plastics. Some years ago I applied some to a screw securing a plastic part and over the next six months the plastic gradually disintegrated starting from the point where I applied the Locktight. ! I now consider it for use ONLY on metal parts. Instead I borrow a trick from my post WWII aircraft service days: paint. A drop of fingernail polish between the nut what it tightens against works very well. If you don't want it visible, paint the threads with some and then put the nut on over it, or paint the face of the nut that presses against the fan with black fingernail polish (a common color nowadays :-) and screw it in place before it dries. It's not so strong that you can't remove the nut, but it should prevent loosening due to fan vibration. And then there's always lock washers. 73, Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of P.J.Hicks As long as we are talking screws I thought I'd mention a situation that occurred last night. While moving my K3 to get at the rear panel I noticed that one of the acorn nuts from one of the fans had fallen off. In checking the rest of them I found them in various stages of looseness. I suspect that the minor fan vibration caused them to loosen. I retightened them and plan on adding a bit of locktight in the next few days. Just a heads up. PJ, N7PXY __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Problem with a K3 screw
Gentlemen: I have my doubts about acetone being used in nail polish but it's possible some manufacturers are using it to cheapen their products. It's a poor solvent for this purpose. However there is no doubt acetone is used in almost every nail polish remover. I keep some in the medical cabinet to unstick fingers bonded together with crazy glue. That being said acetone should never be anywhere near any electronics. I have shut down production lines because someone snuck acetone onto the line for cleaning. It doesn't have to come in contact to damage plastics and other encapsulating materials used for electronic parts. The vapors are enough to cause latent defects that may take years to mature. It particularly damages polystyrene used in some high stability capacitors. Wonder why your VFO drifts? It may be because someone used acetone on it years before. If you must use a solvent for cleaning, say flux, use isopropyl alcohol. Loctite is corrosive. Read the label. It is not recommended for some metals or plastics. If you most use Loctite in electronics use the blue (mild) colored product. Some Loctite is used for chemical welding and can never be undone. Glyptal is the favorite of the military, Collins, and FAA. However xylene has been banned in electronics in many countries. Ever heard of glue sniffing zombies? It does brain damage and it's a mild carcinogen. There may be a xylene free Glyptal out there; I don't know. My bottle is 50 years old. A little dab will do you if you keep the cap on tight. None chemical means such as the formally mentioned Nyloc nuts or mechanical locking hardware is the preferred technic for locking parts and they don't void your warranty. (See Eric's earlier post on corrosionX.) 73 Fred, AE6QL -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ron D'Eau Claire Sent: Friday, December 28, 2012 5:37 PM To: k2...@kanafi.org; 'Elecraft' Subject: Re: [Elecraft] Problem with a K3 screw Fingernail polish uses acetone which, of course, will soften *some* plastics, but unlike the solvent in Loctite, acetone evaporates completely and the end result is quick-drying, chemically stable coating. Of course there is always Glyptal which uses xylene for its solvent. That, too, will soften some plastics. But it, too, dries to a chemically stable state, unlike Loctite. I don't know what Loctite uses. 73 Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Phil Kane Sent: Friday, December 28, 2012 3:42 PM To: Elecraft Subject: Re: [Elecraft] Problem with a K3 screw On 12/28/2012 11:08 AM, Ron D'Eau Claire wrote: Instead I borrow a trick from my post WWII aircraft service days: paint. A drop of fingernail polish between the nut what it tightens against works very well. If you don't want it visible, paint the threads with some and then put the nut on over it, or paint the face of the nut that presses against the fan with black fingernail polish (a common color nowadays :-) and screw it in place before it dries. It's not so strong that you can't remove the nut, but it should prevent loosening due to fan vibration. And then there's always lock washers. How much and what type of solvent does the fingernail polish carry as compared to LockTite? My preferred solution is to use nylon-insert stop nuts, which I learned about when I worked at the Douglas Airplane Works for a brief time. The local ACE Hardware outlet carries them in all sizes. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Problem with a K3 screw
As long as we are talking screws I thought I'd mention a situation that occurred last night. While moving my K3 to get at the rear panel I noticed that one of the acorn nuts from one of the fans had fallen off. In checking the rest of them I found them in various stages of looseness. I suspect that the minor fan vibration caused them to loosen. I retightened them and plan on adding a bit of locktight in the next few days. Just a heads up. PJ, N7PXY __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Problem with a K3 screw
Be careful with locktight. It v-e-r-y s-l-o-w-l-y dissolves many plastics. Some years ago I applied some to a screw securing a plastic part and over the next six months the plastic gradually disintegrated starting from the point where I applied the Locktight. ! I now consider it for use ONLY on metal parts. Instead I borrow a trick from my post WWII aircraft service days: paint. A drop of fingernail polish between the nut what it tightens against works very well. If you don't want it visible, paint the threads with some and then put the nut on over it, or paint the face of the nut that presses against the fan with black fingernail polish (a common color nowadays :-) and screw it in place before it dries. It's not so strong that you can't remove the nut, but it should prevent loosening due to fan vibration. And then there's always lock washers. 73, Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of P.J.Hicks Sent: Friday, December 28, 2012 9:19 AM To: elecraft@mailman.qth.net Subject: [Elecraft] Problem with a K3 screw As long as we are talking screws I thought I'd mention a situation that occurred last night. While moving my K3 to get at the rear panel I noticed that one of the acorn nuts from one of the fans had fallen off. In checking the rest of them I found them in various stages of looseness. I suspect that the minor fan vibration caused them to loosen. I retightened them and plan on adding a bit of locktight in the next few days. Just a heads up. PJ, N7PXY __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Problem with a K3 screw
Wow, that was interesting about the Locktite. I mentioned the issue to my XYL to see if she'd seen any black fingernail polish, and she wondered why clear polish (e.g., Sally's Beauty Supply Hard As Nails) wouldn't be more feasible/desireable... __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Problem with a K3 screw
I have used teflon tape (type for plumbing) for this. It is thin so a few turns around a screw don't put much pressure on small parts but, even though it is slippery, it fills in microscopic imperfections so parts don't loosen by vibration. Scott AA0AA Sent from my iPhone On Dec 28, 2012, at 12:08, Ron D'Eau Claire r...@cobi.biz wrote: Be careful with locktight. It v-e-r-y s-l-o-w-l-y dissolves many plastics. Some years ago I applied some to a screw securing a plastic part and over the next six months the plastic gradually disintegrated starting from the point where I applied the Locktight. ! I now consider it for use ONLY on metal parts. Instead I borrow a trick from my post WWII aircraft service days: paint. A drop of fingernail polish between the nut what it tightens against works very well. If you don't want it visible, paint the threads with some and then put the nut on over it, or paint the face of the nut that presses against the fan with black fingernail polish (a common color nowadays :-) and screw it in place before it dries. It's not so strong that you can't remove the nut, but it should prevent loosening due to fan vibration. And then there's always lock washers. 73, Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of P.J.Hicks Sent: Friday, December 28, 2012 9:19 AM To: elecraft@mailman.qth.net Subject: [Elecraft] Problem with a K3 screw As long as we are talking screws I thought I'd mention a situation that occurred last night. While moving my K3 to get at the rear panel I noticed that one of the acorn nuts from one of the fans had fallen off. In checking the rest of them I found them in various stages of looseness. I suspect that the minor fan vibration caused them to loosen. I retightened them and plan on adding a bit of locktight in the next few days. Just a heads up. PJ, N7PXY __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Problem with a K3 screw
We traditionally used colored nail polish to match the special paint the USAF used on hardware. I think the color was there to make it obvious that the fasteners had been treated. I would expect clear would work as well, although it will certainly be visible because it'll be glossy. 73, Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bayard Coolidge Sent: Friday, December 28, 2012 11:52 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Problem with a K3 screw Wow, that was interesting about the Locktite. I mentioned the issue to my XYL to see if she'd seen any black fingernail polish, and she wondered why clear polish (e.g., Sally's Beauty Supply Hard As Nails) wouldn't be more feasible/desireable... __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Problem with a K3 screw
On Fri, 28 Dec 2012 11:51:52 -0800 (PST), Bayard Coolidge wrote: I mentioned the issue to my XYL to see if she'd seen any black fingernail polish, and she wondered why clear polish (e.g., Sally's Beauty Supply Hard As Nails) wouldn't be more feasible/desireable... I've used clear for decades. Helps keep things where you put them. Most all military stuff I used to work on had red or Glyptal on threads to keep them tight. Gary -- http://ag0n.net 3055: http://ag0n.net/irlp/3055 NodeOp Help Page: http://ag0n.net/irlp __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Problem with a K3 screw
On 12/28/2012 11:08 AM, Ron D'Eau Claire wrote: Instead I borrow a trick from my post WWII aircraft service days: paint. A drop of fingernail polish between the nut what it tightens against works very well. If you don't want it visible, paint the threads with some and then put the nut on over it, or paint the face of the nut that presses against the fan with black fingernail polish (a common color nowadays :-) and screw it in place before it dries. It's not so strong that you can't remove the nut, but it should prevent loosening due to fan vibration. And then there's always lock washers. How much and what type of solvent does the fingernail polish carry as compared to LockTite? My preferred solution is to use nylon-insert stop nuts, which I learned about when I worked at the Douglas Airplane Works for a brief time. The local ACE Hardware outlet carries them in all sizes. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Problem with a K3 screw
Fingernail polish smells like acetone, don't know about LockTite. Acetone and some plastics make a fairly big and unwelcome mess. On 12/28/2012 3:41 PM, Phil Kane wrote: How much and what type of solvent does the fingernail polish carry as compared to LockTite? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Problem with a K3 screw
Fingernail polish uses acetone which, of course, will soften *some* plastics, but unlike the solvent in Loctite, acetone evaporates completely and the end result is quick-drying, chemically stable coating. Of course there is always Glyptal which uses xylene for its solvent. That, too, will soften some plastics. But it, too, dries to a chemically stable state, unlike Loctite. I don't know what Loctite uses. 73 Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Phil Kane Sent: Friday, December 28, 2012 3:42 PM To: Elecraft Subject: Re: [Elecraft] Problem with a K3 screw On 12/28/2012 11:08 AM, Ron D'Eau Claire wrote: Instead I borrow a trick from my post WWII aircraft service days: paint. A drop of fingernail polish between the nut what it tightens against works very well. If you don't want it visible, paint the threads with some and then put the nut on over it, or paint the face of the nut that presses against the fan with black fingernail polish (a common color nowadays :-) and screw it in place before it dries. It's not so strong that you can't remove the nut, but it should prevent loosening due to fan vibration. And then there's always lock washers. How much and what type of solvent does the fingernail polish carry as compared to LockTite? My preferred solution is to use nylon-insert stop nuts, which I learned about when I worked at the Douglas Airplane Works for a brief time. The local ACE Hardware outlet carries them in all sizes. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Problem with a K3 screw - suggestions needed
Don spoke the truth about screwdrivers you Must use the proper size for what screw size your working on. The small sizes I buy 3 at a time and at the first sign of a problem with them in the trash they go. This goes for Phillips and common head or all other special ones. I was taught this my very first year of Gun Smithing School working on guns. Custom made guns and foreign made and many different screw head sizes and even designs. In turn we had to make screwdrivers to match each of them so that what your photo shows did not happen on a sometimes $25-30,000 custom made shotgun. If you come across a screw that is stuck like that first off get a small mallet and strike the screwdriver handle while holding it very straight and tight against the screw. On a radio DO NOT strike it really hard but a few taps will sometimes break loose a stubborn one for easy removal. But nothing replaces the proper screwdriver to begin with. 73, Fred/N0AZZ -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Don Wilhelm Sent: Wednesday, December 26, 2012 5:15 PM To: Fabio IZ4AFW / NZ1W Cc: Elecraft@mailman.qth.net Subject: Re: [Elecraft] Problem with a K3 screw - suggestions needed Fabio, That screw in into a 2D connector. You will be able to remove the front panel by removing the other 2 screws in the 2D connector, and then you should be able to rotate the 2D connector body in a direction that will loosen the screw threads. Elecraft does have replacement screws. You do not have to purchase the SS kit, just order by the part number listed in the assembly manual - you can order one or any multiple you want. The proper size screwdriver is a #1 Phillips which should be available worldwide. Do not use a worn Phillips screwdriver, it is certain to slip and strip out the screwhead. If you have had trouble, I suggest you invest in a new screwdriver. I use my #1 Phillips more than most in my Elecraft repair activities, but if I find my screwdriver does not firmly hold a screw when the screwdriver shaft is held horizontally, that tip is worn sufficiently that it should be replaced. I do not want to strip out the screwheads on my customer's equipment. In other words, do not use worn screwdriver tips and all should be well. 73, Don W3FPR On 12/26/2012 5:46 PM, Fabio IZ4AFW / NZ1W wrote: Hi guys, today I decided to try to apply a mod (Audio Low Pass filter) to my beloved K3. My K3 was born in September, 2009 and I bought it factory assembled. Up till now, I just added a couple of additional filters and the KV3A board; so, I never unassembled the front panel before. Today I found that one of the upper front panel screws was probably overtightened (or defective). I tried to unscrew the screw with several phillips screwdrivers (little and big), to no avail. The side effect of my (unsuccessful) tentatives was that: 1) I was not able to unscrew the screw 2) now the screw head is damaged (see pic at https://picasaweb.google.com/lh/photo/V1aTCoSq5qkgs3y-beE_DdMTjNZETYmy PJy0liipFm0?feat=directlink) I got to unassemble the front panel unscrewing a couple of screws more, but I'd like to solve this little problem (moreover, it's ugly). Before going with some more destructive methods (I am thinking about drilling the screw??), I'd like to have some savy suggestion from the community... Moreover, do you know if Elecraft has an additional screw kit available (I don't need the stainless steel ones)? As a side note, I found that almost all the flat-head screws were very soft and damage-prone (differently from the other round-head screws). __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Problem with a K3 screw - suggestions needed
I have found Screw Grab helpful for situations like this: http://www.screwgrab.com/screwgrab.html Barry W2UP -- View this message in context: http://elecraft.365791.n2.nabble.com/Problem-with-a-K3-screw-suggestions-needed-tp7567729p7567750.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Problem with a K3 screw - suggestions needed
Sorry you had trouble Fabio. Recall that this instruction was included in the installation instructions for the KXV3A board: Whenever you remove screws from a panel, if one screw seems too tight to loosen without damaging it, first loosen the other screws and then try again. Sometimes one screw binds in its hole when the other screws are tightened. That may save you trouble if you open up your K3 again. 73, Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Fabio IZ4AFW / NZ1W Sent: Wednesday, December 26, 2012 2:47 PM To: Elecraft@mailman.qth.net Subject: [Elecraft] Problem with a K3 screw - suggestions needed Hi guys, today I decided to try to apply a mod (Audio Low Pass filter) to my beloved K3. My K3 was born in September, 2009 and I bought it factory assembled. Up till now, I just added a couple of additional filters and the KV3A board; so, I never unassembled the front panel before. Today I found that one of the upper front panel screws was probably overtightened (or defective). I tried to unscrew the screw with several phillips screwdrivers (little and big), to no avail. The side effect of my (unsuccessful) tentatives was that: 1) I was not able to unscrew the screw 2) now the screw head is damaged (see pic at https://picasaweb.google.com/lh/photo/V1aTCoSq5qkgs3y-beE_DdMTjNZETYmyPJy0li ipFm0?feat=directlink) I got to unassemble the front panel unscrewing a couple of screws more, but I'd like to solve this little problem (moreover, it's ugly). Before going with some more destructive methods (I am thinking about drilling the screw??), I'd like to have some savy suggestion from the community... Moreover, do you know if Elecraft has an additional screw kit available (I don't need the stainless steel ones)? As a side note, I found that almost all the flat-head screws were very soft and damage-prone (differently from the other round-head screws). Thanks in advance for your suggestions, 73 Ciao Fabio IZ4AFW - NZ1W - HI9/IZ4AFW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Problem with a K3 screw - suggestions needed
Good advice Don. Another thing that will destroy Phillips head screws is the use of a reed and prince screw driver, so verify that you are REALY using a Phillips screw driver. The very tip of a Phillips screw driver is blunt, not sharp, but a reed and prince screw driver (which looks very much like a Phillips) is sharp on the tip and will not seat completely in a Phillips screw, thus slipping and destroying the socket. Beware when buying inexpensive screw drivers that are call Phillips screw drivers. Check the tip and make sure it's not sharp. 73, Tom Amateur Radio Operator N5GE ARRL Lifetime Member QCWA Lifetime Member On Wed, 26 Dec 2012 18:15:05 -0500, Don Wilhelm w3...@embarqmail.com wrote: Fabio, That screw in into a 2D connector. You will be able to remove the front panel by removing the other 2 screws in the 2D connector, and then you should be able to rotate the 2D connector body in a direction that will loosen the screw threads. Elecraft does have replacement screws. You do not have to purchase the SS kit, just order by the part number listed in the assembly manual - you can order one or any multiple you want. The proper size screwdriver is a #1 Phillips which should be available worldwide. Do not use a worn Phillips screwdriver, it is certain to slip and strip out the screwhead. If you have had trouble, I suggest you invest in a new screwdriver. I use my #1 Phillips more than most in my Elecraft repair activities, but if I find my screwdriver does not firmly hold a screw when the screwdriver shaft is held horizontally, that tip is worn sufficiently that it should be replaced. I do not want to strip out the screwheads on my customer's equipment. In other words, do not use worn screwdriver tips and all should be well. 73, Don W3FPR On 12/26/2012 5:46 PM, Fabio IZ4AFW / NZ1W wrote: Hi guys, today I decided to try to apply a mod (Audio Low Pass filter) to my beloved K3. My K3 was born in September, 2009 and I bought it factory assembled. Up till now, I just added a couple of additional filters and the KV3A board; so, I never unassembled the front panel before. Today I found that one of the upper front panel screws was probably overtightened (or defective). I tried to unscrew the screw with several phillips screwdrivers (little and big), to no avail. The side effect of my (unsuccessful) tentatives was that: 1) I was not able to unscrew the screw 2) now the screw head is damaged (see pic at https://picasaweb.google.com/lh/photo/V1aTCoSq5qkgs3y-beE_DdMTjNZETYmyPJy0liipFm0?feat=directlink) I got to unassemble the front panel unscrewing a couple of screws more, but I'd like to solve this little problem (moreover, it's ugly). Before going with some more destructive methods (I am thinking about drilling the screw??), I'd like to have some savy suggestion from the community... Moreover, do you know if Elecraft has an additional screw kit available (I don't need the stainless steel ones)? As a side note, I found that almost all the flat-head screws were very soft and damage-prone (differently from the other round-head screws). __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html 73, Tom Amateur Radio Operator N5GE ARRL Lifetime Member QCWA Lifetime Member __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Problem with a K3 screw - suggestions needed
In Europe, make sure you are not using a Pozidriv screwdriver. A Pozidriv #1 screwdriver will kind-of work with the Phillips screws in the K3... right up to the moment when a screw gets stuck. Beyond that moment, a Pozidriv screwdriver is very likely to do damage. Even with a good-quality Phillips #1 driver, my 700-series K3 is now on its second set of case screws. The originals were worn out by opening up the K3 to show it to people :-) 73 from Ian GM3SEK http://www.ifwtech.co.uk/g3sek Tom H Childers wrote: Good advice Don. Another thing that will destroy Phillips head screws is the use of a reed and prince screw driver, so verify that you are REALY using a Phillips screw driver. The very tip of a Phillips screw driver is blunt, not sharp, but a reed and prince screw driver (which looks very much like a Phillips) is sharp on the tip and will not seat completely in a Phillips screw, thus slipping and destroying the socket. Beware when buying inexpensive screw drivers that are call Phillips screw drivers. Check the tip and make sure it's not sharp. 73, Tom Amateur Radio Operator N5GE ARRL Lifetime Member QCWA Lifetime Member On Wed, 26 Dec 2012 18:15:05 -0500, Don Wilhelm w3...@embarqmail.com wrote: Fabio, That screw in into a 2D connector. You will be able to remove the front panel by removing the other 2 screws in the 2D connector, and then you should be able to rotate the 2D connector body in a direction that will loosen the screw threads. Elecraft does have replacement screws. You do not have to purchase the SS kit, just order by the part number listed in the assembly manual - you can order one or any multiple you want. The proper size screwdriver is a #1 Phillips which should be available worldwide. Do not use a worn Phillips screwdriver, it is certain to slip and strip out the screwhead. If you have had trouble, I suggest you invest in a new screwdriver. I use my #1 Phillips more than most in my Elecraft repair activities, but if I find my screwdriver does not firmly hold a screw when the screwdriver shaft is held horizontally, that tip is worn sufficiently that it should be replaced. I do not want to strip out the screwheads on my customer's equipment. In other words, do not use worn screwdriver tips and all should be well. 73, Don W3FPR On 12/26/2012 5:46 PM, Fabio IZ4AFW / NZ1W wrote: Hi guys, today I decided to try to apply a mod (Audio Low Pass filter) to my beloved K3. My K3 was born in September, 2009 and I bought it factory assembled. Up till now, I just added a couple of additional filters and the KV3A board; so, I never unassembled the front panel before. Today I found that one of the upper front panel screws was probably overtightened (or defective). I tried to unscrew the screw with several phillips screwdrivers (little and big), to no avail. The side effect of my (unsuccessful) tentatives was that: 1) I was not able to unscrew the screw 2) now the screw head is damaged (see pic at https://picasaweb.google.com/lh/photo/V1aTCoSq5qkgs3y-beE_DdMTjNZETYmy PJy0liipFm0?feat=directlink) I got to unassemble the front panel unscrewing a couple of screws more, but I'd like to solve this little problem (moreover, it's ugly). Before going with some more destructive methods (I am thinking about drilling the screw??), I'd like to have some savy suggestion from the community... Moreover, do you know if Elecraft has an additional screw kit available (I don't need the stainless steel ones)? As a side note, I found that almost all the flat-head screws were very soft and damage-prone (differently from the other round-head screws). -- __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Problem with a K3 screw - suggestions needed
I found that JIS bits fit the screws really well. What bits do they use at Elecraft for assembly? 73, doug On 27-Dec-12 17:21, Ian White GM3SEK wrote: In Europe, make sure you are not using a Pozidriv screwdriver. A Pozidriv #1 screwdriver will kind-of work with the Phillips screws in the K3... right up to the moment when a screw gets stuck. Beyond that moment, a Pozidriv screwdriver is very likely to do damage. Even with a good-quality Phillips #1 driver, my 700-series K3 is now on its second set of case screws. The originals were worn out by opening up the K3 to show it to people :-) 73 from Ian GM3SEK http://www.ifwtech.co.uk/g3sek Tom H Childers wrote: Good advice Don. Another thing that will destroy Phillips head screws is the use of a reed and prince screw driver, so verify that you are REALY using a Phillips screw driver. The very tip of a Phillips screw driver is blunt, not sharp, but a reed and prince screw driver (which looks very much like a Phillips) is sharp on the tip and will not seat completely in a Phillips screw, thus slipping and destroying the socket. Beware when buying inexpensive screw drivers that are call Phillips screw drivers. Check the tip and make sure it's not sharp. 73, Tom Amateur Radio Operator N5GE ARRL Lifetime Member QCWA Lifetime Member On Wed, 26 Dec 2012 18:15:05 -0500, Don Wilhelm w3...@embarqmail.com wrote: Fabio, That screw in into a 2D connector. You will be able to remove the front panel by removing the other 2 screws in the 2D connector, and then you should be able to rotate the 2D connector body in a direction that will loosen the screw threads. Elecraft does have replacement screws. You do not have to purchase the SS kit, just order by the part number listed in the assembly manual - you can order one or any multiple you want. The proper size screwdriver is a #1 Phillips which should be available worldwide. Do not use a worn Phillips screwdriver, it is certain to slip and strip out the screwhead. If you have had trouble, I suggest you invest in a new screwdriver. I use my #1 Phillips more than most in my Elecraft repair activities, but if I find my screwdriver does not firmly hold a screw when the screwdriver shaft is held horizontally, that tip is worn sufficiently that it should be replaced. I do not want to strip out the screwheads on my customer's equipment. In other words, do not use worn screwdriver tips and all should be well. 73, Don W3FPR On 12/26/2012 5:46 PM, Fabio IZ4AFW / NZ1W wrote: Hi guys, today I decided to try to apply a mod (Audio Low Pass filter) to my beloved K3. My K3 was born in September, 2009 and I bought it factory assembled. Up till now, I just added a couple of additional filters and the KV3A board; so, I never unassembled the front panel before. Today I found that one of the upper front panel screws was probably overtightened (or defective). I tried to unscrew the screw with several phillips screwdrivers (little and big), to no avail. The side effect of my (unsuccessful) tentatives was that: 1) I was not able to unscrew the screw 2) now the screw head is damaged (see pic at https://picasaweb.google.com/lh/photo/V1aTCoSq5qkgs3y-beE_DdMTjNZETYmy PJy0liipFm0?feat=directlink) I got to unassemble the front panel unscrewing a couple of screws more, but I'd like to solve this little problem (moreover, it's ugly). Before going with some more destructive methods (I am thinking about drilling the screw??), I'd like to have some savy suggestion from the community... Moreover, do you know if Elecraft has an additional screw kit available (I don't need the stainless steel ones)? As a side note, I found that almost all the flat-head screws were very soft and damage-prone (differently from the other round-head screws). __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Problem with a K3 screw - suggestions needed
What your looking for perhaps is the stainless steel screw sets available, these will probably withstand the harsh treatment you guys are handing out to the screws. Ken..G0ORH - M3i Sent from my iPhone 4 CW4EVER On 27 Dec 2012, at 19:13, Doug Faunt N6TQS +1-510-717-1197 fa...@panix.com wrote: I found that JIS bits fit the screws really well. What bits do they use at Elecraft for assembly? 73, doug On 27-Dec-12 17:21, Ian White GM3SEK wrote: In Europe, make sure you are not using a Pozidriv screwdriver. A Pozidriv #1 screwdriver will kind-of work with the Phillips screws in the K3... right up to the moment when a screw gets stuck. Beyond that moment, a Pozidriv screwdriver is very likely to do damage. Even with a good-quality Phillips #1 driver, my 700-series K3 is now on its second set of case screws. The originals were worn out by opening up the K3 to show it to people :-) 73 from Ian GM3SEK http://www.ifwtech.co.uk/g3sek Tom H Childers wrote: Good advice Don. Another thing that will destroy Phillips head screws is the use of a reed and prince screw driver, so verify that you are REALY using a Phillips screw driver. The very tip of a Phillips screw driver is blunt, not sharp, but a reed and prince screw driver (which looks very much like a Phillips) is sharp on the tip and will not seat completely in a Phillips screw, thus slipping and destroying the socket. Beware when buying inexpensive screw drivers that are call Phillips screw drivers. Check the tip and make sure it's not sharp. 73, Tom Amateur Radio Operator N5GE ARRL Lifetime Member QCWA Lifetime Member On Wed, 26 Dec 2012 18:15:05 -0500, Don Wilhelm w3...@embarqmail.com wrote: Fabio, That screw in into a 2D connector. You will be able to remove the front panel by removing the other 2 screws in the 2D connector, and then you should be able to rotate the 2D connector body in a direction that will loosen the screw threads. Elecraft does have replacement screws. You do not have to purchase the SS kit, just order by the part number listed in the assembly manual - you can order one or any multiple you want. The proper size screwdriver is a #1 Phillips which should be available worldwide. Do not use a worn Phillips screwdriver, it is certain to slip and strip out the screwhead. If you have had trouble, I suggest you invest in a new screwdriver. I use my #1 Phillips more than most in my Elecraft repair activities, but if I find my screwdriver does not firmly hold a screw when the screwdriver shaft is held horizontally, that tip is worn sufficiently that it should be replaced. I do not want to strip out the screwheads on my customer's equipment. In other words, do not use worn screwdriver tips and all should be well. 73, Don W3FPR On 12/26/2012 5:46 PM, Fabio IZ4AFW / NZ1W wrote: Hi guys, today I decided to try to apply a mod (Audio Low Pass filter) to my beloved K3. My K3 was born in September, 2009 and I bought it factory assembled. Up till now, I just added a couple of additional filters and the KV3A board; so, I never unassembled the front panel before. Today I found that one of the upper front panel screws was probably overtightened (or defective). I tried to unscrew the screw with several phillips screwdrivers (little and big), to no avail. The side effect of my (unsuccessful) tentatives was that: 1) I was not able to unscrew the screw 2) now the screw head is damaged (see pic at https://picasaweb.google.com/lh/photo/V1aTCoSq5qkgs3y-beE_DdMTjNZETYmy PJy0liipFm0?feat=directlink) I got to unassemble the front panel unscrewing a couple of screws more, but I'd like to solve this little problem (moreover, it's ugly). Before going with some more destructive methods (I am thinking about drilling the screw??), I'd like to have some savy suggestion from the community... Moreover, do you know if Elecraft has an additional screw kit available (I don't need the stainless steel ones)? As a side note, I found that almost all the flat-head screws were very soft and damage-prone (differently from the other round-head screws). __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Problem with a K3 screw - suggestions needed
Hi guys, today I decided to try to apply a mod (Audio Low Pass filter) to my beloved K3. My K3 was born in September, 2009 and I bought it factory assembled. Up till now, I just added a couple of additional filters and the KV3A board; so, I never unassembled the front panel before. Today I found that one of the upper front panel screws was probably overtightened (or defective). I tried to unscrew the screw with several phillips screwdrivers (little and big), to no avail. The side effect of my (unsuccessful) tentatives was that: 1) I was not able to unscrew the screw 2) now the screw head is damaged (see pic at https://picasaweb.google.com/lh/photo/V1aTCoSq5qkgs3y-beE_DdMTjNZETYmyPJy0liipFm0?feat=directlink) I got to unassemble the front panel unscrewing a couple of screws more, but I'd like to solve this little problem (moreover, it's ugly). Before going with some more destructive methods (I am thinking about drilling the screw??), I'd like to have some savy suggestion from the community... Moreover, do you know if Elecraft has an additional screw kit available (I don't need the stainless steel ones)? As a side note, I found that almost all the flat-head screws were very soft and damage-prone (differently from the other round-head screws). Thanks in advance for your suggestions, 73 Ciao Fabio IZ4AFW - NZ1W - HI9/IZ4AFW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Problem with a K3 screw - suggestions needed
Fabio, That screw in into a 2D connector. You will be able to remove the front panel by removing the other 2 screws in the 2D connector, and then you should be able to rotate the 2D connector body in a direction that will loosen the screw threads. Elecraft does have replacement screws. You do not have to purchase the SS kit, just order by the part number listed in the assembly manual - you can order one or any multiple you want. The proper size screwdriver is a #1 Phillips which should be available worldwide. Do not use a worn Phillips screwdriver, it is certain to slip and strip out the screwhead. If you have had trouble, I suggest you invest in a new screwdriver. I use my #1 Phillips more than most in my Elecraft repair activities, but if I find my screwdriver does not firmly hold a screw when the screwdriver shaft is held horizontally, that tip is worn sufficiently that it should be replaced. I do not want to strip out the screwheads on my customer's equipment. In other words, do not use worn screwdriver tips and all should be well. 73, Don W3FPR On 12/26/2012 5:46 PM, Fabio IZ4AFW / NZ1W wrote: Hi guys, today I decided to try to apply a mod (Audio Low Pass filter) to my beloved K3. My K3 was born in September, 2009 and I bought it factory assembled. Up till now, I just added a couple of additional filters and the KV3A board; so, I never unassembled the front panel before. Today I found that one of the upper front panel screws was probably overtightened (or defective). I tried to unscrew the screw with several phillips screwdrivers (little and big), to no avail. The side effect of my (unsuccessful) tentatives was that: 1) I was not able to unscrew the screw 2) now the screw head is damaged (see pic at https://picasaweb.google.com/lh/photo/V1aTCoSq5qkgs3y-beE_DdMTjNZETYmyPJy0liipFm0?feat=directlink) I got to unassemble the front panel unscrewing a couple of screws more, but I'd like to solve this little problem (moreover, it's ugly). Before going with some more destructive methods (I am thinking about drilling the screw??), I'd like to have some savy suggestion from the community... Moreover, do you know if Elecraft has an additional screw kit available (I don't need the stainless steel ones)? As a side note, I found that almost all the flat-head screws were very soft and damage-prone (differently from the other round-head screws). __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Problem with a K3 screw - suggestions needed
On Wed, Dec 26, 2012 at 4:46 PM, Fabio IZ4AFW / NZ1W iz4...@iz4afw.orgwrote: ...2) now the screw head is damaged... === Fabio, I did this on my K3 the first day I got it. The solution provided by the Elecraft service stars was to take off the side panel and take all the other screws out of the little corner joiner. Then you can get the panel off, and even if damaged the screw will come out of the joiner okay. Tony KT0NY -- http://www.isb.edu/faculty/facultydir.aspx?ddlFaculty=352 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Problem with a K3 screw - suggestions needed
Hi Fabio, I think I can help you. I had exactly the same problem and posted this message some time ago: I wanted to share a very successful procedure to remove one of the flat head 4-40 cover screws from my K3. The screw head was damaged beyond use. There was a long thread on the subject last year and one poster suggested using a left hand drill bit. I purchased a 3/32 left hand bit, chucked it into my hand drill, masked off the screw to avoid any cover damage, drilled very slowly, and 5 seconds later the drill bit with the entire screw was in my hands. The threads of the 2-D fastener were totally undamaged and a new screw was easily put into place. My thanks to the poster that made the recommendation. 73, Mike K2MK Fabio IZ4AFW / NZ1W wrote Hi guys, today I decided to try to apply a mod (Audio Low Pass filter) to my beloved K3. My K3 was born in September, 2009 and I bought it factory assembled. Up till now, I just added a couple of additional filters and the KV3A board; so, I never unassembled the front panel before. Today I found that one of the upper front panel screws was probably overtightened (or defective). I tried to unscrew the screw with several phillips screwdrivers (little and big), to no avail. The side effect of my (unsuccessful) tentatives was that: 1) I was not able to unscrew the screw 2) now the screw head is damaged (see pic at https://picasaweb.google.com/lh/photo/V1aTCoSq5qkgs3y-beE_DdMTjNZETYmyPJy0liipFm0?feat=directlink) I got to unassemble the front panel unscrewing a couple of screws more, but I'd like to solve this little problem (moreover, it's ugly). Before going with some more destructive methods (I am thinking about drilling the screw??), I'd like to have some savy suggestion from the community... Moreover, do you know if Elecraft has an additional screw kit available (I don't need the stainless steel ones)? As a side note, I found that almost all the flat-head screws were very soft and damage-prone (differently from the other round-head screws). Thanks in advance for your suggestions, 73 Ciao Fabio IZ4AFW - NZ1W - HI9/IZ4AFW -- View this message in context: http://elecraft.365791.n2.nabble.com/Problem-with-a-K3-screw-suggestions-needed-tp7567729p7567738.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
