1 00:00:00,187 --> 00:00:01,207 Welcome to weld.com. 2 00:00:01,207 --> 00:00:05,282 I need to do a video on oxyacetylene setup. 3 00:00:05,282 --> 00:00:07,208 We wanna go through this for 4 00:00:07,208 --> 00:00:12,919 safe operations setup everything about the torch, the hoses, the regulator. 5 00:00:12,919 --> 00:00:16,805 I don't take for granted that people know this when they come in to my shop for 6 00:00:16,805 --> 00:00:20,101 the first time, or I'm working around them for the first time. 7 00:00:20,101 --> 00:00:21,591 I'm watching them, okay? 8 00:00:21,591 --> 00:00:26,082 I'm not saying that I do it absolutely perfect, but I've been doing it for 9 00:00:26,082 --> 00:00:28,662 such a long time I've never had a problem. 10 00:00:28,662 --> 00:00:33,331 A couple of things you wanna do, follow some rules anyway I wanna go through and 11 00:00:33,331 --> 00:00:34,765 set this rig up for you. 12 00:00:34,765 --> 00:00:36,230 Let's get to it. 13 00:00:36,230 --> 00:00:39,828 First thing we wanna do is inspect regulator fittings. 14 00:00:39,828 --> 00:00:42,373 I already have the oxygen on here. 15 00:00:42,373 --> 00:00:47,100 But I wanna point out that any time that you're getting ready to set 16 00:00:47,100 --> 00:00:52,344 the regulators on the tanks for the first time, look at the seats, okay? 17 00:00:52,344 --> 00:00:54,985 Inspect these seats, make sure they're not dinged. 18 00:00:54,985 --> 00:00:57,333 If you drop one of these, it's got a dent in it. 19 00:00:57,333 --> 00:01:00,853 It's gonna make it a little harder for it to seat up. 20 00:01:00,853 --> 00:01:04,375 One thing to point out right now is, 21 00:01:04,375 --> 00:01:08,731 this is female left-hand for the fuel gas. 22 00:01:08,731 --> 00:01:12,501 The compressed gas association has made it almost impossible. 23 00:01:12,501 --> 00:01:14,151 I say almost. 24 00:01:14,151 --> 00:01:16,353 You can't put this regulator on an oxygen. 25 00:01:16,353 --> 00:01:22,948 You can't put the oxygen on the acetylene for a very good reason. 26 00:01:22,948 --> 00:01:24,835 Low pressure gauges. 27 00:01:24,835 --> 00:01:26,887 High pressure gauges. 28 00:01:26,887 --> 00:01:30,367 The fuel gas is left-hand thread, and 29 00:01:30,367 --> 00:01:35,860 it's indicated by a cut in the outside of the nut here, okay? 30 00:01:35,860 --> 00:01:37,502 So I've inspected this. 31 00:01:37,502 --> 00:01:41,608 I wanna thread this into the regulator. 32 00:01:41,608 --> 00:01:43,615 I'm up over the top of this. 33 00:01:43,615 --> 00:01:46,010 I'm turning it to the left to tighten it. 34 00:02:01,856 --> 00:02:03,645 That part's done. 35 00:02:03,645 --> 00:02:09,011 I don't have a torch on my hoses, so I'd like to move off to the to the hoses and 36 00:02:09,011 --> 00:02:12,908 put them onto the torch body, not turning these on yet. 37 00:02:12,908 --> 00:02:17,607 Next thing I need to do is attach the hoses to the torch body. 38 00:02:17,607 --> 00:02:22,417 Again, left-hand thread, right-hand on 39 00:02:22,417 --> 00:02:27,738 the oxygen it's indicated by O and F for fuel gas. 40 00:02:36,895 --> 00:02:38,207 >> So I could see. 41 00:02:48,311 --> 00:02:50,888 >> It's a good idea to occasionally check fittings. 42 00:02:50,888 --> 00:02:54,491 I've seen these actually in use for 43 00:02:54,491 --> 00:02:59,302 quite a while, and they get loose and back off. 44 00:03:01,947 --> 00:03:06,040 Do a leak check with soapy water, go by with the wrench and 45 00:03:06,040 --> 00:03:07,929 snug them back up, okay? 46 00:03:07,929 --> 00:03:12,382 So our hoses are correctly attached to the torch body. 47 00:03:12,382 --> 00:03:17,527 The next thing I wanna move on to is attaching the cutting head, 48 00:03:17,527 --> 00:03:21,619 or the cutting attachment, onto the torch body. 49 00:03:21,619 --> 00:03:24,627 I'm gonna go ahead and put a tip in this. 50 00:03:24,627 --> 00:03:30,712 And again, [COUGH] I wanna inspect the seats on this. 51 00:03:30,712 --> 00:03:37,224 There's two machine seats in here, one of them here and one of them here. 52 00:03:37,224 --> 00:03:41,681 And if this has a dent, or if this has been dropped, 53 00:03:41,681 --> 00:03:47,280 this is soft enough material that it'll put a ding in this seat, 54 00:03:47,280 --> 00:03:49,676 and then it won't seal up. 55 00:03:49,676 --> 00:03:55,818 I like to put these on, give them about a half twist or a quarter twist. 56 00:03:55,818 --> 00:04:00,198 This is the only nut that you wanna put a wrench on. 57 00:04:03,828 --> 00:04:05,991 And I'll go ahead and just seat that. 58 00:04:05,991 --> 00:04:10,439 The next thing I wanna do is inspect the O rings and 59 00:04:10,439 --> 00:04:15,007 the seats in this part of the cutting attachment. 60 00:04:15,007 --> 00:04:19,370 These are easily replaceable, but if they're dry rotted or I've been using 61 00:04:19,370 --> 00:04:23,530 a torch before and for thing was blowing out in the threads right here, and 62 00:04:23,530 --> 00:04:26,433 I wondered why, and I stopped and shut it all down. 63 00:04:26,433 --> 00:04:30,199 I unthreaded this, and it didn't even have an O ring in there. 64 00:04:30,199 --> 00:04:33,186 That was joyful at the moment. 65 00:04:33,186 --> 00:04:38,363 So the way I like to put these together, always hang on to this, and 66 00:04:38,363 --> 00:04:44,387 I like to start the threads, and get it down there where it's about to touch. 67 00:04:44,387 --> 00:04:48,530 I like to give it about a half twist and hand tighten this. 68 00:04:48,530 --> 00:04:51,405 Do not put a wrench on this. 69 00:04:51,405 --> 00:04:54,618 There is no reason to really crank this down. 70 00:04:54,618 --> 00:04:59,462 And I've seen people do this and it just sends chills down my spine. 71 00:04:59,462 --> 00:05:03,878 They'll be operating their torch, and they'll get a little blow by, and 72 00:05:03,878 --> 00:05:06,483 they get a fire coming out of these threads. 73 00:05:06,483 --> 00:05:10,140 And the first thing they do is come over here and tighten it, 74 00:05:10,140 --> 00:05:13,138 instead of taking this part and finding out why, 75 00:05:13,138 --> 00:05:17,473 they just go ahead and over tighten it, not I just disagree with that. 76 00:05:17,473 --> 00:05:18,730 So again, hand tight. 77 00:05:18,730 --> 00:05:23,678 I personally like to have my valves away from my cutting lever. 78 00:05:23,678 --> 00:05:26,795 It's just the way I've been operating it for years. 79 00:05:26,795 --> 00:05:28,801 I'm comfortable with it. 80 00:05:28,801 --> 00:05:32,180 I know that if [COUGH] I sling this hose over my shoulder, 81 00:05:32,180 --> 00:05:34,094 it's supposed to stay there. 82 00:05:34,094 --> 00:05:38,510 I know that it's just comfortable for me. 83 00:05:38,510 --> 00:05:40,684 So I'm getting ready to cut. 84 00:05:40,684 --> 00:05:44,589 Since I have the cutting attachment on here, 85 00:05:44,589 --> 00:05:49,747 I wanna open this oxygen valve all the way and leave it open. 86 00:05:49,747 --> 00:05:55,817 My flame is now adjusted between the fuel gas here and the oxygen here. 87 00:05:55,817 --> 00:05:58,125 That's my flame adjustment. 88 00:05:58,125 --> 00:06:01,033 My cutting oxygen is on the lever. 89 00:06:01,033 --> 00:06:06,020 Okay, we've gone through [COUGH] setting the hoses up, 90 00:06:06,020 --> 00:06:10,902 configuring the torch attachment, setting the tip, 91 00:06:10,902 --> 00:06:13,674 I wanna turn these bottles on. 92 00:06:13,674 --> 00:06:18,634 I see people shut their rigs down, or they walk up to cylinders to turn on, 93 00:06:18,634 --> 00:06:20,480 and they never check this. 94 00:06:20,480 --> 00:06:26,682 They leave them in the same place all the time where there's pressure on them. 95 00:06:26,682 --> 00:06:27,937 I don't think that's cool. 96 00:06:27,937 --> 00:06:32,322 I had a very good friend of mine that repaired torches, and 97 00:06:32,322 --> 00:06:36,799 regulators, and he told me stories about things that he's 98 00:06:36,799 --> 00:06:41,742 repaired that would just absolutely blew up and it wasn't cool. 99 00:06:41,742 --> 00:06:44,887 Back these off just so they're loose, they don't have a pressure on them. 100 00:06:44,887 --> 00:06:49,533 And when I say back them off, that's not to the right, that's to the left. 101 00:06:49,533 --> 00:06:51,790 You don't wanna back them off where the screw falls off, but 102 00:06:51,790 --> 00:06:53,350 just back them off where they're loose. 103 00:06:53,350 --> 00:06:54,955 Turn these on slow. 104 00:06:54,955 --> 00:06:58,218 Also stand to the side of them. 105 00:06:58,218 --> 00:07:00,538 A full bottle of oxygen is high pressure. 106 00:07:00,538 --> 00:07:04,360 2250 pounds thereabouts. 107 00:07:04,360 --> 00:07:09,585 Turn this on full, but you don't want this pressure adjusting 108 00:07:09,585 --> 00:07:15,020 screw tightened and then come over here and crank this baby open. 109 00:07:15,020 --> 00:07:20,619 It's shocking that diaphragm on the backside of the delivery regulator. 110 00:07:20,619 --> 00:07:25,389 High pressure, low pressure delivery, okay? 111 00:07:25,389 --> 00:07:29,908 For general cutting, depending on the size of torch, 112 00:07:29,908 --> 00:07:36,601 you can run your oxygen pressure up to 25, some people run it up as high as 70. 113 00:07:41,113 --> 00:07:44,334 Same thing on the low pressure fuel side. 114 00:07:44,334 --> 00:07:46,818 Check this and make sure that it's loose. 115 00:07:46,818 --> 00:07:49,669 Turn this on slow fuel gas. 116 00:07:49,669 --> 00:07:56,913 We turn on one complete turn, depending on the size of the tip, 117 00:07:56,913 --> 00:08:02,665 we'll run the pressures up to the 678 pounds, 118 00:08:04,660 --> 00:08:07,582 Anywhere from five to eight, okay? 119 00:08:07,582 --> 00:08:09,174 Our system is closed. 120 00:08:09,174 --> 00:08:13,925 I have this closed, and I have the fuel gas closed, my oxygen, 121 00:08:13,925 --> 00:08:16,091 my acetylene, my fuel gas. 122 00:08:16,091 --> 00:08:20,372 This is what I would adjust the flame with right now. 123 00:08:20,372 --> 00:08:24,780 Before doing anything else, I can check for leaks. 124 00:08:24,780 --> 00:08:27,090 And I would simply do that. 125 00:08:27,090 --> 00:08:34,130 Since this is pressured up, my valves are closed, I can turn these cylinders off. 126 00:08:34,130 --> 00:08:41,762 And if either of the needles move anywhere in this system, I have a leak, okay? 127 00:08:41,762 --> 00:08:46,778 I might be able to find a fuel leak because the settling stinks. 128 00:08:46,778 --> 00:08:49,791 I'm not gonna find it on the oxygen side. 129 00:08:49,791 --> 00:08:54,451 So I would stop at that point and go get some soapy water, and 130 00:08:54,451 --> 00:09:00,250 I would check that connection, there's a splice in the hose somewhere. 131 00:09:00,250 --> 00:09:02,646 I would check that I'd check this. 132 00:09:02,646 --> 00:09:07,849 If I've got a leak somewhere, it would show up with the soapy water, 133 00:09:07,849 --> 00:09:12,983 but that is a fast, ineffective, accurate way to check for leaks. 134 00:09:12,983 --> 00:09:15,601 My needles are not moving. 135 00:09:15,601 --> 00:09:18,009 I'm gonna turn this back on. 136 00:09:18,009 --> 00:09:20,270 Yes, I realize I didn't back that off. 137 00:09:20,270 --> 00:09:22,693 I didn't bleed the system either. 138 00:09:22,693 --> 00:09:25,396 I'll turn that on full. 139 00:09:25,396 --> 00:09:28,271 Turn this on one complete turn. 140 00:09:28,271 --> 00:09:32,953 If I need to do anything [COUGH] to take the cutting 141 00:09:32,953 --> 00:09:37,878 attachment off, then I need to close this valve. 142 00:09:42,381 --> 00:09:45,800 And then I could turn this any which way I want. 143 00:09:45,800 --> 00:09:50,478 So I think we're at a point where we can test fire. 144 00:09:50,478 --> 00:09:52,842 Let me grab my striker. 145 00:09:54,626 --> 00:09:56,037 I'm gonna fire the system. 146 00:09:56,037 --> 00:10:00,494 I've turn the settling on slowly, about a half turn. 147 00:10:00,494 --> 00:10:01,345 I light it. 148 00:10:01,345 --> 00:10:05,708 I wanna light it until I don't have a bunch of soot. 149 00:10:05,708 --> 00:10:11,573 I do not wanna turn it on so that the flame separates from the tip either. 150 00:10:14,874 --> 00:10:20,649 Connect that back and get a good burn out here where it's not blowing to it, 151 00:10:20,649 --> 00:10:24,878 slowly turn some oxygen on until I get a neutral flame. 152 00:10:28,877 --> 00:10:30,911 Looks like I have a foul tip. 153 00:10:30,911 --> 00:10:32,432 This is an OT tip. 154 00:10:32,432 --> 00:10:36,665 An OT tip, nice and clean, should get a good burn in it as I 155 00:10:36,665 --> 00:10:40,736 depress the oxygen lever, it actually gets shorter. 156 00:10:40,736 --> 00:10:45,420 To me, that indicates turbulence in that tip needs to be cleaned out a little bit. 157 00:10:45,420 --> 00:10:48,238 Want to turn the system off. 158 00:10:48,238 --> 00:10:49,482 Turn the oxygen off. 159 00:10:49,482 --> 00:10:51,515 Turn the acetylene off. 160 00:10:51,515 --> 00:10:54,996 Now I need to shut this system down. 161 00:10:54,996 --> 00:11:01,433 And in order to do that, I've never known which one of these turns off first. 162 00:11:01,433 --> 00:11:02,591 I don't think it matters. 163 00:11:02,591 --> 00:11:03,254 We can argue. 164 00:11:03,254 --> 00:11:04,381 We can fight. 165 00:11:04,381 --> 00:11:08,733 If somebody knows absolute fact and can back it up, tell me. 166 00:11:08,733 --> 00:11:12,440 Anyway, we can turn the fuel gas off. 167 00:11:12,440 --> 00:11:15,501 First, we can turn the oxygen off. 168 00:11:15,501 --> 00:11:17,688 Second, we're just turning the cylinders off. 169 00:11:17,688 --> 00:11:23,643 We're gonna secure the system like we're gonna leave overnight or for a week. 170 00:11:23,643 --> 00:11:26,734 At this point, I wanna bleed the system, okay? 171 00:11:26,734 --> 00:11:30,635 I wanna take the pressure off of the regulators. 172 00:11:30,635 --> 00:11:33,249 I wanna bleed the system. 173 00:11:33,249 --> 00:11:39,189 So I'm gonna bleed the fuel gas first, both needles drop. 174 00:11:39,189 --> 00:11:44,225 At that point, I back the adjusting screw to the left 175 00:11:44,225 --> 00:11:48,470 till it becomes loose, close the fuel gas. 176 00:11:48,470 --> 00:11:52,730 I can either push the oxygen lever, or 177 00:11:52,730 --> 00:11:59,254 I can open the flame, adjusting oxygen bleed the system, 178 00:11:59,254 --> 00:12:04,464 turn that off, turn the pressure adjusting. 179 00:12:04,464 --> 00:12:08,339 Screw to the left, roll my hoses up. 180 00:12:08,339 --> 00:12:10,184 I'm good to go. 181 00:12:10,184 --> 00:12:16,232 One other thing that I noticed when I was putting this together, 182 00:12:16,232 --> 00:12:23,413 and I failed to mention, this torch has built in flashback arrestors in it. 183 00:12:23,413 --> 00:12:30,216 Older models don't but you can get these cute little guys right here. 184 00:12:30,216 --> 00:12:35,198 They are reverse-flow check valves and 185 00:12:35,198 --> 00:12:38,135 flashback arresters. 186 00:12:38,135 --> 00:12:42,711 And you can put them in line in 187 00:12:42,711 --> 00:12:47,488 your hoses and to your torch. 188 00:12:47,488 --> 00:12:50,210 Actually, go like that. 189 00:12:50,210 --> 00:12:52,767 You got an older torch body. 190 00:12:52,767 --> 00:12:56,486 Good idea to pick these rascals up here. 191 00:12:56,486 --> 00:13:00,555 Again, I don't take any of this for granted. 192 00:13:00,555 --> 00:13:07,067 This is like you're working with high pressure oxygen and fuel gas. 193 00:13:07,067 --> 00:13:11,419 There's just certain safety procedures that you go through. 194 00:13:11,419 --> 00:13:15,400 I don't take for granted that everybody that comes in, even though they've been 195 00:13:15,400 --> 00:13:19,682 a welder for 1015, 2030 years, I don't take for granted that they know this. 196 00:13:19,682 --> 00:13:24,116 I've seen people develop some bad habits on doing certain things, 197 00:13:24,116 --> 00:13:29,106 turning cylinders on with the regulator, the way they light up hot starts. 198 00:13:29,106 --> 00:13:33,373 I've seen them cut corners, and it kinda makes me a little nervous. 199 00:13:33,373 --> 00:13:37,642 [COUGH] If they work safe, accurate, they pay attention to their work area. 200 00:13:37,642 --> 00:13:42,222 I don't have a problem, but again, don't take it for granted. 201 00:13:42,222 --> 00:13:46,246 There are other videos out on this references. 202 00:13:46,246 --> 00:13:49,244 Hope you found this educational. 203 00:13:49,244 --> 00:13:50,682 Please subscribe to our channel. 204 00:13:50,682 --> 00:13:53,205 Check us out on Facebook and Instagram. 205 00:13:53,205 --> 00:13:54,820 Thanks for watching weld.com. 206 00:13:54,820 --> 00:13:57,403 I'm Bob Moffatt.