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 proje (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 th the leg is inside the hole. You also want the tip slightly offset so that i 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 melted 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 vacuum 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 solder the other side of the hole.
But I was able to desolder 3 chips (2 memory chips and a 80C85 CPU) in a ver short time with no damage to the board or the chips.
... Me, indecisive? I don't think I am, do you?
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.
MRO wrote to Moondog <=-
those vaccum desoldering tools can be tricky. i prefer the manual tools over those things. you can rip pads off boards.
Lesson learned: I still need to have a soldering iron near by to heat up the area a bit to remove the component. But the desoldering tool make removing that component 100 times easier than with manual only tools.
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Re: Re: Hakko FR-301
By: Dr. What to MRO on Tue May 19 2020 10:19 am
Lesson learned: I still need to have a soldering iron near by to heat up the area a bit to remove the component. But the desoldering tool make removing that component 100 times easier than with manual only tools.
i'm old school. i prefer manual. my coworkers are crying for a 'solder sucker' but me and the boss are very against them. those pads are just
on with a bit of glue.
when you do the tool, you go over the lead and go down and do a little wiggle. then you go up and suck. atleast that's how i was shown. i
only ripped off one pad and it was because of the issue you mentioned where i didnt get all the solder off and i ripped it off.
i still like the old school desoldering methods. i feel like i have a
lot more control.
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