Subj : Hakko FR-301
To   : Moondog
From : MRO
Date : Sun May 17 2020 11:38 pm

  Re: Hakko FR-301
  By: Moondog to Dr. What on Mon May 11 2020 08:31 pm

 >   Re: Hakko FR-301
 >   By: Dr. What to All on Mon May 11 2020 09:52 am

 >  > So I was finally able to play with my Hakko FR-301 desoldering tool.

 >  > Overall, it was a breeze to use and I'll be using this for many future pr
 >  > (like the replacement of my Tandy 1400LT battery) soon.

 >  > The solder "tip" has a hole in it. You put the tip on the solder point so
 >  > the leg is inside the hole.  You also want the tip slightly offset so tha
 >  > heating the leg - not the pad as much.

 >  > I usually move the tip to the side a bit to tell me if the solder has mel
 >  > then I press the vacuum button and I now have a clean solder point.

 >  > Of course, it's not magically perfect.
 >  > Sometimes you need to add some extra solder to get a good seal on the vac
 >  > And it doesn't suck the solder all the way to the other side of the board
 >  > the chips do need a bit of coaxing to get off because of the residual sol
 >  > the other side of the hole.

 >  > But I was able to desolder 3 chips (2 memory chips and a 80C85 CPU) in a 
 >  > short time with no damage to the board or the chips.



those vaccum desoldering tools can be tricky. i prefer the manual tools over
those things. you can rip pads off boards.
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