In this case, the screw head is on one side of the pc board and the washer is on the other side of the pc board! The trick is to move the board in to position vertically and start in the threads without jiggling the washer off of the screw.
That's where a small dab of wax or petroleum jelly on the screw threads after the washer has been placed on the screw will help hold the washer in place. Another way of doing is to use a well-magnetized screwdriver. The magnetism will hold both the screw on the screwdriver and the washer on the screw on the opposite side of the board while starting the screw in the threads. Bill, NR4C, noted that he uses a small strip of paper, about 1/4" (0.6cm) wide and about 2" (5 cm) long with a small hole punched through it near one end. After placing the screw through the pc board with the washers in place, the screw is then threaded through the small hole in the paper strip. The paper will keep the lock washer on the side of the pc board opposite the screw head from falling off as the board is moved into position. And then, after the screw is started in the threads, the paper can be torn off of the screw. If the hole is near one end, it tear away cleanly without leaving any scraps behind. Bill said he worked that technique out installing the K3 synthesizer boards that also have lock washers on the opposite side of the board from the screw head. 73, Ron AC7AC -----Original Message----- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Geoffrey Mackenzie-Kennedy Sent: Sunday, July 21, 2013 8:53 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3EXREF query The most useful tool, which I have found for this type of application, is the simple screw "Grabber". Not only can this tool be used to hold a screw and washer(s) while starting the thread, but also while removing a screw and washers. It can also be used to retrieve bits of wire, screws, washers and other small items which may have fallen into "difficult to reach" places. The tool requires only one hand to hold it during use, and is operated by the thumb of that hand. It is also very inexpensive, about $2, and is available from most of the major stockists. 73, Geoff LX2AO ______________________________________________________________ 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
