[Shop-talk] Basic MIG Welding questions

[Arvid Jedlicka]

My Lincoln PowerMig 300 doesn't have a purge setting but it does have 
preflow - two seconds of flow before the wire feeds - so by setting the wire 
feed down as far as it will go and pulling the trigger and then releasing it 
after a second - repeat four or five times - the plumbing is purged - I get 
to double check the flow on the gauge - and either zero or very little wire 
is wasted.