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Old 05-10-2017, 11:24 PM
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mccutter mccutter is offline
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Join Date: Mar 2006
Location: Central Florida
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Victor OEM O/A regulator rebuild kits came today and I put them in. (see picture above for contents) About the only issue is I mashed one of the nylon washers for the oxygen high pressure plunger and had to re-use the old one which worked fine. The new washer was a little distorted and the threads grabbed it and ground it as I tightened. It felt weird going in so good thing I backed the nut out and checked it. Have to see about getting a spare with my next order. The acetylene kit included 2 gauge lenses I will put into inventory until needed.

When installing the diaphragm, I stacked all the parts up with the regulator housing level in a vise clamped on the bottom. Then I carefully brought the diaphragm cover over everything from the top and carefully hand-tightened then when snug I finished tightening with a wrench.

Installed both regulators on the cylinders and pressurized the high side and checked for leaks with the nose (acetylene), ears (oxygen) and soapy water (both) and no issues were noted. Then pressurized the low side by adjusting the regulators and checked for flow at the torch, then turned the torch valves off. Rechecked with soapy solution and NPF.

I had planned on using the torch on the turbo manifold but I got the parts for the car yesterday and used propane on the manifold to remove one stud. The others I deemed to be fine... Have to be real patient with propane and that is not one of my virtues... I'll update the car work with pics on "what did you do today #26" thread.

I lit the #0 and true to the chart, the flame is easily 4" long. I'll order a #00 or #000 for future use. I HAD to test it so I welded a blade to a blade with a 1/16" rod I had kicking around.

I hadn't O/A welded in 30 years and back then, all you had to do was grab a clothes hanger from the uniform closet and get to metal melting. No shielding gas needed or special filler rods. (I wonder if you could use a plastic clothes hanger for plastic welding? ) This weld was just a quickie and not my best work. I had to stop because otherwise I would have to put on gloves because of the heat.

PS: I took my nitrogen regulator apart and the hi-pressure plunger is damaged as the oxygen was. Time to get another kit...

PPS: Added a couple .pdfs from Victor (now part of ESAB). Worth downloading and/or printing for reference...
Attached Thumbnails
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Attached Files
File Type: pdf 56-0607 sr 250 series regulator.pdf (964.8 KB, 110 views)
File Type: pdf 56-0502 welding and heating nozzles compnents parts breakdow.pdf (1.42 MB, 105 views)

TA Arcmaster 185 w/tig/stick kit
MillerMatic 252 w/3rd gen 30A
MM140 w/o AS, w/CO2
Hobart (Miller) 625 plasma
Hobart 250ci plasma
Victor O/A (always ready, but bored)
TA 95 lunchbox w/tig
45ACP Black Talons for those stubborn jobs...

Last edited by mccutter; 05-12-2017 at 01:07 AM.
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