Simple Question ! . . . .

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OK,  here's my chance to learn something !Regarding o/a . . . when shutting down the torch....do you close the o2 first, or the Acy. first ?Obviously...either way will put out the fire.....but I've always beentold to close the gas first, which usually results in a "crack" asthe flame croaks.  I read in a book that you should nix the o2 first,so the flame doesn't burn back down the tip, but dies a slowdeath right at the tip, and that will eliminate the carbon & sootdown in the body where you attach the tip.Any and all opinions are, of course, gratefully respected !(believe it or not, I AM still trying to learn)  I'll be the LAST one to let you down !
Reply:The books I read said oxygen off first.  Took an OFW class and they taught fuel off first.  I think the oxygen off first is related to a safety thing, i.e. purging the line with fuel alone which is not explosive (only flammable).  I don't like the pop, so I kill the oxygen first.  I'd bet though, that since their are two schools of thought in a two fish pond, then it probably doesn't matter one little bit.
Reply:we've all heard it both ways, and when I asked my instructure the official answer from the gods above was to follow manafacturers directions. Every man. specifies different order of opps.Keep your stick on the ice
Reply:i have always heard oxy off firstStangnetShop Full Of Stuff. Joey
Reply:I am suprised there have not been some strong opinions expressed on this one but it is looking like a half-hearted draw so far.  Shucks.  Maybe the Monday morning drive crowd will liven it up some.Meanwhile .... just in case ....Redneck option:  gas first - the pop makes the women pee their pants & giggle.  Might get a little.Biker option:  spit in the palm of the same hand you use as a gounding clamp and snuff it out like a candle.  It impresses the Old Lady & why else do you wear the fingerless gloves?Oklahoma option:  douse it in a can of that 3.2 beer - might give it some tasteSeattle option:  douse it in that Starbucks latte - at five bucks a cup it should be good for something.LA option:  Oxygen first.  Soot?  What soot?OCC option:  Smother it in Mikey's hair & toss it aside.  Can't make matters any worse.WCC option:  Kick it across the floor & thump your chest.  This is on tv, man.  The Mainer option:  Ayuh, can't do much about that torch until May.Too damned cold,  probably freeze up anyway..Federal gov't option:  Fill out triplicate form XXXXXXXXX.yyyyyy\XyXyXy After reading OSHA document Gas Welding and Cutting ,doc #350.1926, sign and print name in space at bottom of each page,  Initial subsections 21, 37.1b and 42. For help in filling out this form, see www.OSHA.gov online athttp://www.osha-slc.gov/pls/oshaweb/...RDS&p_id=10696The Wesley Clark option:  I might have voted to turn off the oxygen first, George Bush mislead us into turning off the oxygen first.  I didn't say I voted to turn off the oxygen first.  In 1982 I would have turned off the oxygen first if I had not known what I don't now know.The John F. Kerry option:  F*** the oxygen.  The polls don't mean anything.The Al Sharpton option:  That's a racist torch.The Bill Clinton option:  I did not have oxygen with that torch.The Philadephia Eagles option:  We'll blow the torch again.The Hillary Clinton option: Well obviously it takes a village to turn off that torch . I'm  all set for 2008.  (Am I the sly one or what?)The Carolina Panthers option:  Don't look now, but .... who'd a thought it?The West Texas option:  Don't worry about it, the wind already blew the torch out.The George W. Bush strategery:  Turn off the damned torch or you can bet your sweet *** I'll turn it off for you.The New England Patriots option:  What torch?  Peyton who?The Howard Dean option:  The torch was never an immediate danger. What? No, don't hand me that torch, it makes me look too short.  Give it to the United Nations, let them turn it off. What?  Sit down & shut up, you had your say.  He lied to us, we never should have lit that torch in the first place.Dammit Jim, I'm a doctor, not a weldor.  What?The Franz option:  Next 10,000 characters reserved for long rambling historical perspective on what you young'uns never would have known about turning off the oxxigin first. Or last.  Hell you might not have even been abel to lite it.     (yep.  Totally irresistable.)
Reply:great reply cutter  hahahaIt is a great idea to have flashback arrestors inline with the torch and hoses. Flashback explosions have and do occur! Everything that I have read says to turn off the oxygen first. Oxygen supports combustion and aids explosions. Also,It is always a good idea to leak check your hoses with soapy water or a dunk tank.                Jeff
Reply:According to the Linde "OXY-ACETYLENE HANDBOOK" second edition, copyright 1943/1960. You shut the Acetylene off first.
Reply:Originally posted by cutter The Mainer option:  Ayuh, can't do much about that torch until May.Too damned cold,  probably freeze up anyway..(yep.  Totally irresistable.)
Reply:Cutter is suffering from Very Mad Cow Disease!Who the hell has time to count how many characters I use?Turn the damn gas off first!  The popping sound will wake the Herbivor up, if he ain't singin behind his helmet he's sleepin there.Wesley Clark, PLEASE give us an answer on what happened to all the classified documents you left in the Benz limo your wife was illegally using when she got it stolen at the shopping center.Howard Dean, please send me a couple of those dorkwad orange hats, they look warm, and after 20 minutes I'll either loose one or have it dirty enough people won't think I support your sorry ***.Appreciation Gains You Recognition-
Reply:Be careful Franz! Dean will come to your house with the hats. Then tell everyone you invited him there to weld with him. Like he did with Jimmy Peanut
Reply:Well, he's more than welcome to bring those hats by, but I ain't real sure how it's gonna look on TV with him gettin thrown off the property.?? Have I become completely STUPID, or have I completely missed any of these "candidates" talking about a single thing the office of Presidnet is Constitutionally empowered to do?If these guys are the Best & Brightest, I'm starting excavation for a BUNKER!No wonder Hillopotomous is my Jr Senator, the voting public has become enstupified by the NEA led Department of Education.Appreciation Gains You Recognition-
Reply:I think you have discovered the "Vast Left wing conspiracy"If you look at most of the recent crop of grads, I don't think a bunker will help. Between the government schools, and MTV these kids can't "like can't string together complete sentences like you know dude"Butt!! they all like howard dean, Madonna told them to.Luckly Brittany can't spell Howard Dean. These people are the future citizens of our country. Sean hanady's, and Jay Leno's street interviews are scary. These kids can't identify the Vice president, or any cabinet members. But they can identify the "Gansta Rappers", and most of the MTV stars.Bunker hell, We need to move to Idaho with Mark Furman and the others.You'll be able to tell when it's spring time up there, Mark will be out in his field planting evidence
Reply:I have been told to turn off the gas first. From my experience I found I get a lot less smoke, soot and popping that way.Welder- Miller Thunderbolt AC 225-DC 150 Plasma cutter, Miller Spectrum 300O/P torch- Victor 100
Reply:I turn them off at the same time.
Reply:Originally posted by Mike W I turn them off at the same time.
Reply:Originally posted by Franz No wonder Hillopotomous is my Jr Senator, the voting public has become enstupified by the NEA led Department of Education.
Reply:See, I told ya the popping sound would wake  the Herbivor up Public "Education"  Jefferson said "the only way this experiment in democracy will work is with an informed educated public"Hamilton FAXed Jefferson his thoughts on the matter, and there was a transmission error.By the time Carter created the Department of Education, the NEA, a heavy contributor to the Democratic Party, already had the real plan on paper,  Modify the Industrial Conditioning System into a voter training system.  Together with Madison Ave, they could take control.   At the time, Jacques Cousteau of Don't drip on my carpet fame, pointed out Pre WW-II France had a cabinet level Department of Instruction, and the French educated their children; After the war they had a Department of Education and all instruction in the public schools ended.Fortunately, I live in an area where it is only necessary to know and congegate 2 verbs, "go" and "F6(k" and studnets here can do both by 5th frade. Sadly, I must admit I was in favor of lowering the age of sufferage to 18, back in the 60s.  Today, I realize it should be returned to 21, and an IQ test should be administered before anyone is allowed to vote.   Tehn again, I still remember when Senators were appointed rather than directly elected.  As Robert Bork said a few years ago, the end of civilization as we know it is here.  Fortunately, it is a slow process, and it is quite possible to live well during the decline.Appreciation Gains You Recognition-
Reply:Wars are like steroids for Government-grow,grow and grow..And, NO I am not a member of the J.B.S. just in case somebody gets that idea from my ramblings."after a long day of doing nothing...its gooood to kick back" Pumbaa
Reply:Well, it looks like the majority votes for "gas off first".Thanks, guys !  You reduced my stress level to the pointthat I may be able to sleep at night  (Just to let you know...I DID look at my owners manual,and it say's to kill the o2 first.....but what do they know,they just built the damn thing) !I give more weight to you pro's. opinion than an owners manualthat was probably written by an "educated idiot" freshout of college !   GAS OFF FIRST IT IS ! !I'll be the LAST one to let you down !
Reply:They want to sell you o rings, and they know how to do it.Appreciation Gains You Recognition-
Reply:I read on a board a while back about this topic and the quote was  "A before O, or up you go"Al
Reply:Originally posted by Franz Well, he's more than welcome to bring those hats by, but I ain't real sure how it's gonna look on TV with him gettin thrown off the property.?? Have I become completely STUPID, or have I completely missed any of these "candidates" talking about a single thing the office of Presidnet is Constitutionally empowered to do?
Reply:Was just reading this thread on AWS forum . . . http://www.aws.org/cgi-bin/mwf/topic_show.pl?id=4729 This might explain the reason for the different shut down methods.Bob Sigmon
Reply:Originally posted by cutter Well jeez, if you want to get alll technical about it.  I remember Eric Hoffer predicted back in the 60's that Eisenhower might someday emerge asone of the best presidents of the century because he didn't do much of anything & therefore did the least amount of harm.
Reply:Franz;Your comment about the legion was interesting, and supports a story I heard back in the 60's When I was involved in JKF's and LBJ's great Southeast Asia adventure. I did R&R in Bangkok. I met a german fellow, who owned a bar there. After beaucoup drinks. He loosen up and told us why we weren't going to win the war.It turned out that he was in the SS during WW2. His unit got out from behind Russian lines, escaped to Algeria, and joined the French foriegn Legion. There was a legion regiment composed of ex germans. Apparently they were the only successful French unit in Indochina. Word got out about their composition from the US news media. The regiment was broken up and sent to other units. That was the end of french successes. He did his time, got his French citizenship, and stayed in Southeast Asia.We did provide Air and Naval logisital support to the French during that war. You can still see how they appreciated itMost of the Legion in IndoChina were former Nazi SS and Vermacht, including 2ndPara, the REP.  Unfortunately, the Legion is and was commanded by the top graduates of SanSe, the french equivelent of West Point (in their mind), and the command definitely screwed up every thing they did.Consider the concept of a command structure of people who never had the ability to win a battle commanding people who had whipped their *** at least twice, without breaking a sweat.  Naw, there's no way the snotballs would screw their troops over.Also consider the US first sent advisors and GUNS, big guns & little guns to Uncle Ho when FDR was president,  That's right, the first US advisors went to help Uncle Ho in 1939, and took shiploads of cannon made by General Electric in 1937 to help Ho whup Japanese butt.  Guess who taught Ho's people how to fight a gorilla war?  LBJ let us fight against tactics we had developed and taught, because his pissugly wife was collecting a fortune thru the LBJ Ironworks, as well as a ****load of other businesses she owned.BTW, those GE cannon from 1937 were dug into a mountainside up by Camp Carol in 68, dumping tons of nasty onto KheSahn, and the guys from Camp Carol finally dug them out, cause we couldn't bomb em out or blow em out with artillery.  That damn hill was a copy of the Magenaut line.Another of Ike's magnificent accomplishments, along with his pals from OSS, Dulles and the Cardinal of the Chicogo Diocese was appointing a Catholic President of South VietFNam, who ruled like an old Manderin Prince.Ike also refused to allow the plebicite to occurr because he was scared the whole friggin peninsula would become another Communist country.  Funny thing is Ho only became a Communist and turned to the Russians for support after the US shafted their ally against the Japanese.Appreciation Gains You Recognition-
Reply:Hey, if you hadn't lighted the torch in the first place, you wouldn't have this problem.  If your cutting, PLAZ it.  If you're welding, TIG it.   BTW, what's Acetylene??
Reply:Stovepoke....I'm a sentimental ol' fool !   Give me o2 & Acy.....and stick....and i'm happy !   I will admit that i do have oneof them "new-fangled" MIG welders, and, to be honest, itdoes work pretty nice.   I guess it's my fault.....I welded years ago, and have been out of it for quite a while.   Within the pastyear, i've decided to take it up again as a hobby, and I'llbe damned if they didn't slip some new technology in on me !I'm taking it all in good humor though.....Seem's they're tryingto make welding as "idiot-proof" as possible, (kinda' like thecomputer industry).   Thank God for this site...where I canask stupid questions !  I'll be the LAST one to let you down !
Reply:Marco ya gotta understand Pete(stovepoker) is so far back in the woods if his roof caves in nobody knows for about a month till the neighbors finish drinkin all his cider and wine and come to town to tell how good it was.Problem is, when Pete comes out of the woods, he gets to building all that computer driven machinery.  He'd really get into robotic welding if it wasn't so much trouble to program the robot to change rods.  I've tried teachin him to hook a robot to a MIG machine, but I couldn't get him past puttin a hammer on a robot arm so he could forge weld.Appreciation Gains You Recognition-
Reply:Well,  just for the fun of it, I sent an e-mail to Thermadyne, (whoevidently own's Victor from what I can gather on the web).Asked them to give me their "official stance" on the shut-downquestion.   Told them that my book say's oxy. first, but I also toldthem that I have a "Wealth" of information from some veryvenerable "heat-treated weldors" that advise me gas first !Will let you know what they say....(if they even reply). I'll be the LAST one to let you down !
Reply:Ought to be interesting.I just got a request from Miller to fill out a survey on hos well their professional staff had answered the question I emailed them back when the fecal matter was hitting the rotating air pusher.It's interesting as these corporate computer systems get more how sophisticated that people actually believe the system works.Of course I'm also getting nasty emails from my ISP informing me their computer can't get paid by the bank's computer, so it must be my fault.  When I reply to that, I get another email thanking me for replying.  I'm half considering hitting reply on that to see what comes next.Appreciation Gains You Recognition-
Reply:Originally posted by Franz Ought to be interesting.I just got a request from Miller to fill out a survey on hos well their professional staff had answered the question I emailed them back when the fecal matter was hitting the rotating air pusher.It's interesting as these corporate computer systems get more how sophisticated that people actually believe the system works.Of course I'm also getting nasty emails from my ISP informing me their computer can't get paid by the bank's computer, so it must be my fault.  When I reply to that, I get another email thanking me for replying.  I'm half considering hitting reply on that to see what comes next.