Shop Floor Talk  

Go Back   Shop Floor Talk > Welding and Metalworking Forums > Welding

SFT Search:   
Thread Tools Display Modes
Old 04-13-2021, 03:58 PM
mccutter's Avatar
mccutter mccutter is offline
Post Fiend
Join Date: Mar 2006
Location: Central Florida
Posts: 9,724

Originally Posted by Erwin Haban View Post
What about the 25 year old tank of 75/25, still full but am I correct that it would still be good?
The gas should be fine although I don't know enough to say if there would be any "separation" over time. Our resident chemical engineer might have some input on that...

Hopefully the regulator wasn't left in the "adjusted" position because that could mean the spring has fatigued and/or seal has become compressed/hard/leaky. Start by loosening the regulator adjustment so it is loose and then s l o w l y crack open the valve on the cylinder while watching the low-side gauge for movement. If the gauge "jumps" up to max while you open the valve, quickly close it again because the regulator is defective and needs repair or replacement. Some are rebuildable with a $20 kit.

Other than a gentle blow out of dust from the inside, and replacement of the wire (if necessary--roll off about 100' and see if the surface rust goes away), I would remove the gun tip and blow out any dust/rust from the MIG lead liner from the roller side. Maybe a little clean up of the roller and idler with Scotchbrite or similar...

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...
Reply With Quote
Old 04-13-2021, 07:27 PM
midmosandblasting's Avatar
midmosandblasting midmosandblasting is offline
Blast this!
Join Date: Oct 2005
Location: Calhoun ,Mo
Posts: 8,544

We always ran the wire through a bit of scotch brite before the rollers at the wheel plant . Why no idea wire was in 400 to 600 pound drums and did not last long .
Reply With Quote
Old 04-13-2021, 11:12 PM
greywynd's Avatar
greywynd greywynd is offline
I can dig it
Join Date: Dec 2005
Location: Wainwright, Alberta
Posts: 5,672

In a pinch we run it through a foam earplug or two to help wipe the rust off.

Sent from my iPhone using Tapatalk
Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Web Search:

All times are GMT -5. The time now is 08:19 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.