Newb troubleshooting?

[MarkMCM]

Drive motor of my mig seems to surge and feed speed vary and I can stop the motor by pinching the wire at the tip with my fingers.

Should I be able to stall the motor so easily?

Thanks

 

[yomax4]

Guessing you have your drive rolls way way too tight. The wheels should slip. On making the motor stop, depends on the feed system but the short answer is no.

 

[MarkMCM]

Will make sure about drive wheel. Just seems to stall motor much easier than my other welder.

 

[yomax4]

Will make sure about drive wheel. Just seems to stall motor much easier than my other welder.

Which welder do you have there?

 

[MarkMCM]

Lincoln 180HD that is probably 6 years old.

 

[crackerjack222]

I had much the same problem with my Lincoln WeldPak. The wire feed would surge. Replacing the liner solved the problem, it had a very slight kink in it.

 

[yomax4]

Pretty bullet proof machine. Swap liner and go a couple oversized like an 045 liner. Get you wire tension set so the drive rolls slip instead of stopping the motor and I bet you will be good to go.

 

[CincyFlyer]

A worn contact tip can also do the old "slip and stick", and it takes ten seconds to change.