[TheForge] Oxy/Propane reprise
Andy Gladish
gladish at cablerocket.com
Mon Nov 9 21:19:33 EST 2009
Something you wrote makes me want to make sure you know the basic
adjustment: Start with the fuel valve at the base of the torch closed all
the way and the oxygen valve at the base open all the way, and the oxygen
valve by the cutting lever closed all the way. (the O2 valve at the base
of the torch is the one that feeds the cutting lever, not the one by the
lever- that one feeds flame adjustment.)
crack the fuel valve, just enough to light with your sparker.
Open fuel valve until the flame just starts to jump off the tip, just a
little, then back off just a tad so it's stable.
Open the O2 valve, the one by the lever (the one at the base of the torch
is already all the way open) until the long blue center cone just
disappears into the little blue cones, now you have the correct flame for
cutting. Depending on how thick the metal you're cutting is, open the fuel
more and then re-balance the flame with the O2 valve.
The torch should be MUCH louder when you pull the lever, hissing as the
higher pressure oxygen shoots out the center orifice of the tip.
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