You don't have to take the pace vane pump apart. When the
vanes start to stick, just put the hose into a bottle of
99% IPA, and snorfle up the alcohol. Put a small hose on
the pressure output port so that you can run the waste
alcohol into a bottle for the next time. You can reuse
the alcohol a dozen times or more.
-Chuck Harris
Glenn Little wrote:
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The flux fumes will go right through the fiber disk.
I use a Pace desoldering system with a cotton like plug in the solder capture
cylinder and a fiber filter at the end of the tubing just before it goes into the
vacuum pump.
The fiber filter catches a lot but not all of the vapor.
A lot of the flux vapor condenses out onto the inside wall of the tubing connecting
the iron to the vacuum pump.
The installed vacuum pump here is a rotary vane pump.
About once a year, I have to disassemble the pump and clean the carbon vanes and the
carbon wear plates to remove the condensed flux vapor.
The amount of flux vapor ingested by the system is based on the amount of residual
flux left on the solder being removed and the length of time that you are sucking the
solder in one session.
The hotter the air through the system the more vaporized flux gets to the pump.
If you only remove a few parts then let the system rest and the solder capture
cylinder cool down there is less flux vapor than if you desolder a large quantity of
parts at one time.
I do the latter and have recovered over 20 pounds of solder from boards.
Glenn
On 7/29/2018 10:51 AM, John Griessen wrote:
On 07/29/2018 06:18 AM, Mark Wendt wrote:
The Hakko desoldering station I have has two sets of inline filters. One, a kind
of springy thingy for stopping the solder bits and pieces from flowing into the
pump, and the other a fiber disc for stopping the smokey stuff from getting
through. Perhaps on John's system the fiber disc isn't in place to stop that from
happening?
It's in place. It's not enough though.
