🔥Safe Oxy Fuel Setup and Operation

welcome to welcome need to do a video on oxy-acetylene setup I'm going to go through this for safe operations set up everything about the torch the hoses regulator I don't take for granted that people know this when they come into my shop for the first time or I'm working around them for the first time I'm I'm watching them okay I'm not saying that I'd do it absolutely perfect but I've been doing it for such a long time I've never had a problem it's a couple of things you want to do follow some rules anyway I want to go through and set this rig up for you let's get to it first thing we want to do is inspect regulators regulator fittings already have the oxygen on here but I want to point out that anytime that you're you're getting ready to set the regulators on the tanks for the first time look at the seats okay inspect these seats make sure they're not dinged if you drop one of these it's got a dent in it it's going to make it a little harder for it to seat up one thing to point out right now is this is female left hand for the fuel gas the compressed gas Association has made it almost impossible I say almost you can't put this regulator on an oxygen you can't put the oxygen on the acetylene for a very good reason low pressure low pressure gauges high pressure gauges the fuel gas is left-hand thread and it's indicated by a cut in the outside of the nut here okay so I've inspected this I want to thread this into the regulator I'm up over the top of this I'm turning it to the left to tighten it that parts done I don't have a torch on my hoses so I'd like to move off to the to the hoses and put them onto the torch body not turning these on yet next thing I need to do is attach the hoses to the torch body again left hand thread right hand on the oxygen it's indicated by Oh an F for fuel gas it's a good idea to occasionally check fittings I've seen these actually in use for quite a while and they get loose and back off and do a leak check with soapy water go by with the wrench and Snug them back up okay so our hoses are correctly attached to the torch body the next thing I want to move on to is attaching the the the cutting head or the cutting attachment onto the torch body I'm gonna go ahead and put a tip in this and again you don't want to look at I want to inspect the seats on this there's two machined seats in here one of them here and one of them here and if this has a dent or if this has been dropped this is soft enough material that it'll put a ding in this seat and then it won't seal up I like to put these on give them about a half twist or a quarter twist this is the only nut that you want to put a wrench on and I'll go ahead and just seat that the next thing I want to do is inspect the o-rings and the seats in this part of the cutting attachment these are easily replaceable but if they're dry rotted or I've been using a torch before and the thing was blowing out and the threads right here and I wondered why and I stopped and shut it all down I under this and it didn't even have an overhang in there that was joyful at the moment so the way I like to put these together always hang on to this and I like to start the threads and get it down there where it's about to touch I like to give it about a half twist and hand tighten this do not put the wrench on this there's no reason to really crank this down and I've seen people do this and just it just sends chills down my spine they'll be operating their torch and they'll get a little blow by and they get a fire coming out of these threads and the first thing they do is come over here and tighten it instead of taking this part and finding out why they just go ahead and over tighten it not I just disagree with that so again hand tight I personally like to have my valves away from my cutting lever it's just the way I've been operating it for years I'm comfortable with it I know that if I sling this hose over my shoulder it's supposed to stay there I know that you know I it's just comfortable for me so I'm getting ready to cut since I have the cutting attachment on here I want to open this oxygen valve all the way and leave it open my flame is now adjusted between the fuel gas here and the oxygen here that's my flame adjustment my cutting oxygen is on the lever okay we've gone through setting the hoses up configuring the torch torch attachment setting the tip I want to turn these bottles on I see people shut their rigs down or they walk up two cylinders to turn on and they never check this they leave them in the same place all the time where there's pressure on them I don't I don't think that's cool very I had a very good friend of mine that repaired torches and regulators and he told me stories about things that he's repaired that would just absolutely blew up and wasn't cool so back these off just so they're loose they don't have a pressure on them and when I say back them off that's not to the right that's to the left you don't want to back them off where the screw falls off but just back them off with her loose turn these on slow also stand to the side of them a full bottle of oxygens high-pressure 20 250 pounds they're about you know turn this on full but you don't want this you don't want this pressure regulator pressure justing screw tightened and then come over here and crank this baby open that's just it's shocking that diaphragm on the backside of the delivery regulator high pressure low pressure delivery okay for general cutting depending on the size of torch you can run your oxygen pressure up to 25 some people run it up as high as 70 same thing on the low pressure fuel side check this and make sure that it's loose turn this on slow fuel gas we turn on one complete turn depending on the size of the tip will run the pressures up to six seven eight pounds anywhere from five to eight okay our system is closed I have this closed and I'll have the fuel gas closed my oxygen my settling my fuel gas this is what I would adjust the flame with right now before doing anything else I can check for leaks and I would simply do that since this is pressured up my valves are closed I can turn these cylinders off and if either the needles move anywhere in this system I have a leak okay I might be able to find a fuel leak because acetylene stinks I'm not going to find it on the oxygen side so I would stop at that point and go get some soapy water and I would check that connection that connection there's a splice in the hose somewhere I would check that I'd check this if I've got a leak somewhere it would show up with the soapy water but that is a fast ineffective accurate way to check for leaks my needles are not moving I'm gonna turn this back on yes I realize I didn't back that off I didn't believe the system either I'll turn that on full turn this on one complete turn if I need to do anything to take the cutting attachment off then I need to close this valve and then I could turn this any which way I want so I think we're at a point where we can test fire let me grab my Strucker I'm gonna fire the system I turn the acetylene on slowly about a half turn light it I want to light it until I don't have a bunch of soot I do not want to turn it on so that the flame separates from the tip either Connect that back and get a good burnout here where it's not blowing soot slowly turn some oxygen on until I get a neutral flame looks like I have a foul tip this isn't hot tip a nought tip nice and clean should get a good burn in it as I depress the oxygen lever it actually gets shorter to me that indicates turbulence in that tip needs to be cleaned out a little bit I'm going to turn the system off turn the oxygen off turn the acetylene off now I need to shut this system down and in order to do that I've never known which one of these turns off first I don't think it matters we can argue we can fight if somebody knows absolute fact and can back it up tell me anyway we can turn the fuel gas off first you can turn the oxygen off second we're just turning the cylinders off we're going to secure the system like we're going to leave overnight or for a week at this point I want to bleed the system ok I want to take care I'm going to take the pressure off of the off of the regulators I want to bleed the system so I'm gonna bleed the fuel gas first both needles drop at that point I can back the adjusting screw to the left till it becomes loose close the fuel gas I can either push the oxygen lever or I can open the flame adjusting oxygen bleed the system turn that off turn the pressure adjusting screw to the left roll my hoses up I'm good to go one other thing that I noticed when I was putting this together and I failed to mention this torch has built-in flashback arrestor Zin it older models don't but you can get these cute little guys right here they are reverse-flow check valves and flashback arrestors and you can put them in line in your hoses enter your torch actually go like that you got an older torch body good idea to pick these Rascals up here again I don't take any of this for granted this is like you know you're working with high pressure oxygen and fuel gas there are just there's just certain safety procedures that you go through I don't take for granted that everybody that comes in even though they've been a welder for 10 15 20 30 years I don't take for granted that they know this I've seen people develop some bad habits on doing certain things turning cylinders on with the regulator the way they light up hot starts I've seen them cut corners in it it kind of makes me a little nervous if they work safe accurate they pay attention to their work area I don't have a problem but again don't take it for granted there are other videos out on this references hope you found this educational please subscribe to our channel check us out on Facebook and Instagram thanks for watching welcome I'm Bob Moffett

Channel: Weld.com

Views: 218,436

Keywords: welding, weld.com, mig monday, tig time, how to weld, learn how to weld

Id: gUMTnI7AhMQ

Length: 13min 57sec (837 seconds)

Published: Sat Nov 24 2018