Re: [cw_bugs] Key Cleaning / Maintenance
- Thanks for the nice advice, which I followed and trusted without much question, after having read several descriptions.Ordered, let's see what it gives once on my workbench-in-buildingThanks again for support, THIS is ham radio73 DE F8GRY#15969
De : walt shipman - KI4OYH <ki4oyh@...>
À : "firstname.lastname@example.org" <email@example.com>
Envoyé le : Lundi 17 juin 2013 9h00
Objet : Re: [cw_bugs] Key Cleaning / Maintenance
Thank you, a very good post. The only difference I can find between the two attachments was the addition of the following to the BUG ADJUSTMENT Section - included in the first attachment:
"The trunnion screws (they hold the lever and allow it to swing) should NOT be lubricated. Lubrication of such a small bearing causes more problems than help. It attracts dirt, dander and dust, and on some keys that have been "oiled" the lubricant had gotten between the main lever and the dash lever. This sticky residue causes the levers to stick when the dash lever is used. This problem is much more common than most people realize! Clean off the lubrication with ammonia then water and let dry for a few hours before reassembling. Moisture will weld your screws to the frame when the water turns iron to rust!Also take a strand of stranded wire or a pin and clean out the trunnion screw cavity. I use a cheap ultrasonic cleaner with ammonia or Formula 409 to degrease and clean. I usually follow up with another 5 minutes of water and Dawn dish detergent then five more minutes with just water. Dry for a few hours and reassemble.When tightening the trunnion screws, they should be adjusted with the key set wide so you can feel the drag. If the lever drags no matter what, it is rough and should be smoothed with 600 then 800 then 3000 grit wet/dry sandpaper (or other) and tried again. The correct adjustment is the best of "minimum up and down play with minimum drag" - when adjusted correctly, the lever will move slightly up and down as if it is tightened too much it will bind."72/73Walt
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From: "D.J.J. Ring, Jr." <n1ea@...>
Sent: Sunday, June 16, 2013 9:39 PM
Subject: Re: [cw_bugs] Key Cleaning / Maintenance [2 Attachments]
Benoît,I also attach the files - see if they go with the message.À bientôt & 73, mon ami,DR