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  #21  
Old 01-09-2019, 04:46 PM
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Quote:
Originally Posted by Matt Shade View Post
Different tips have different gas requirements. Your best bet is to read the manual/literature that came with your torch.

Here is a video they made us watch in the welding lab when I was in college. It gives a lot of good info on how to adjust your cutting torch. You don't have to be quite that scientific about it, but it is a much better starting place than just winging it
https://youtu.be/f2amO0T3vkQ
I saw that video! that's why I only hand tightened the retaining nut for the cutting tip. when I got the replacement, took a wrench to it like other posters on this thread said, and no problems so far. Thanks anyway
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  #22  
Old 01-09-2019, 05:05 PM
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Originally Posted by biker55 View Post
I saw that video! that's why I only hand tightened the retaining nut for the cutting tip. when I got the replacement, took a wrench to it like other posters on this thread said, and no problems so far. Thanks anyway
Are you using propane or O/A that makes a difference as well
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  #23  
Old 01-09-2019, 06:42 PM
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propane.
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  #24  
Old 01-09-2019, 07:35 PM
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Quote:
Originally Posted by biker55 View Post
since you guys are a plethora of info, what are the settings when using a heating attachment? Thanks
I have not seen a propane heating attachment, only use the cutting torch
for heating.
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  #25  
Old 01-09-2019, 08:51 PM
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I have a Smiths MD torch and I have a propane rose bud for it.

If I remember right it wasn't cheap.
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  #26  
Old 01-09-2019, 09:36 PM
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Quote:
Originally Posted by biker55 View Post
propane.
Yeah no problem you can use your Acetylene regulator but if you just use the standard propane regulator off like a gas BBQ pit is better controlled which is what most people use here and some LWS sell them set up that way here then it is preset to 5-8psi then you just set your oxy to 15 and you should be good to go cutting with propane is a bit different and takes a little more practice to get use to adjusting as you will have a much heavier gas flame before adding the oxy to it.... you will catch on soon enough

most propane users here use propane cutting rigs for salvage and scrapping work... Weldors always use the A/O in this neck of the woods I do use propane for salvage and scrapping work

if your using this for cutting metal for welding and building projects you might look in to O/A as gasses will last you a bit longer usually one bottle of Acetylene to two bottles of oxygen is what I get out of my set but they are large 300 owner bottles....
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  #27  
Old 01-09-2019, 11:51 PM
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I have a Smith medium duty set with a rosebud tip for propane. The book is down in the shop, but I will try to remember to post the operating pressures tomorrow.
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  #28  
Old 01-10-2019, 12:51 AM
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post a pic of your cutting rig mainly torch and propane regulator id like to see exactly how it is set up... please....
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  #29  
Old 01-10-2019, 04:10 AM
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Quote:
Originally Posted by monckywrench View Post
Not sure if the OEM is Koike but they list Apollo flashback arrestors under that name.
My only experience is with O/A, there is quite a few times I had a flash back, one gas with a slightly higher pressure can force the flame back "inside" the tip, torch handle, worse case hose.

anytime I get the pop and the flame goes out, I quickly turn off the valves on the torch some times you can hear the whizzing sound when the flame is burning back in the tip.

I think most "new"setups have built in flash back arrestors now a days, also there are two types of back flow preventers I don't remember why the two types.

Spelling ?, Is it preventers of preventors ?
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  #30  
Old 01-10-2019, 04:29 AM
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Got a big propane rosebud that needs two 60lb tanks ganged together to operate right, three would be better.
Used it twice so far, I have two adjustable lp regulators that I adjust to get the flame right. Too heavy a draw on the tanks and the torch will go out. I need to pick up another 60lb tank and regulator to really put it to use.
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