Purging Gas Lines on Mig?

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Hi Guys,I usually lurk and take in the wealth of information that is graciously provided by so many fellow members.  Please forgive me if this is a stupid question but I have searched and cannot find an answer.I own a Millermatic 252 Mig welder and I sometimes go weeks without using it.  My question is, when preparing to weld after weeks of non-use, how should I purge the gas line to ensure that when I start to weld I am getting pure inert gas and not the air that is sitting in the line?  I know the simple answer is to pull the trigger but I am feeding wire as I purge the line?  Is there a way to do this without wasting wire?  I usually open the panel up and disconnect the feed rollers and then pull the trigger until I have purged the line but I wonder if there is a better way?My sincerest thanks for any help and/or guidance and my deepest appreciation.  BTW, the unit is equipped with a Bernard Q300 Center-Fire Mig gun.Thanks again,Joe...Last edited by jbacc; 11-26-2011 at 07:01 PM.
Reply:set the WS to 0
Reply:Originally Posted by Jake98set the WS to 0
Reply:Tap the trigger for about 2 seconds.  If you cant afford to waste that amount of wire, maybe you need to look at your finances again?Seriously, just tap the trigger and you're good to go.Have we all gone mad?
Reply:Originally Posted by sn0border88Tap the trigger for about 2 seconds.  If you cant afford to waste that amount of wire, maybe you need to look at your finances again?Seriously, just tap the trigger and you're good to go.
Reply:Originally Posted by jbaccHa, I cannot believe I did not think of that, I am quite embarrassed Thank you,Joe...
Reply:If there is no WFS=0, and you don't want to waste the wire, just release the drive roll tension."Great spirits have always encountered violent oppostion from mediocre minds."  --  Albert Einstein
Reply:Don't feel bad, I've had my share of D'oh moments (:-AlexSears/Craftsman 230A Buzzy BoxSears/Craftsman 180A Buzzy BoxChicago Electric 80A InverterALL STICK...ALL THE TIME!I spent a lot of time with the square peg and round hole.
Reply:oops.. that's what the op suggested.  ... and you were telling me not to feel bad.  Oh well.I guess I am one for two suggesting that."Great spirits have always encountered violent oppostion from mediocre minds."  --  Albert Einstein
Reply:Originally Posted by jbaccHonestly, I thought it would take longer than 2 seconds to purge the entire line after it has been sitting for weeks.  Thanks for the tip, I appreciate it.Joe...