Welder maintenance?

[KMinAF]

I have a Lincoln Weld Pack 155, just wondering what if any maintenance I should be doing. It is working fine and every once in a while I take the cover off and use compressed air to blow out the dust. Is there anything else that I should do?

 

[Crusty Nut]

after a long, long time you may need a new liner in the lead whip.

 

[BigMike782]

My SP135 was running great but ran out of wire.Once I had the new roll loaded I could not feed the wire to the drive rolls.I found the inlet guide was alost completely plugged.That said I would say to periodically clean the inlet guide,clean the drive roll with a solvent like acetone and replace the liner....they are cheap..less than 20.00.