20 Most Recent Hobart Welders 500505 Handler 140 MIG & Flux Cored 140 Amp Welder w/Cart - Page 4 Questions & Answers

is this a lower end machine ? the cheaper machines take the power from the welding transformer to power the feed motor and as a result the feed isn't stable, also is the wire liner and tip in good condition if not replace them, try blowing through the liner with compressed air to clear any dust from the wire

First make sure the nozzle tip is free of any debris and the wire will slide easily. Lift the case and go to the wire feed unit. Loosen the pressure nob then lift up to release the pressure wheel. Make sure the bottom wheel ( should have two grooves, one for .35 wire and the other for 025 wire.) Make sure the Wire Feed Tip is also free and it allows the wire to pass through. Pass the wire through the feeder across the drive wheel and into the hose. Allow the pressure wheel to drop, then lift the pressure know to the upright position. Turn clockwise to put tension on the wheel. Make sure the gas is OFF, turn power on, depress trigger switch. This should allow the wheel to turn and feed the wire.

check rollers make sure using hard wire side for hardwire not for flux core maybe tighten tension

Hobart machines now belong to miller brand, you can use a miller gun M15, no need for adaptors it's a direct plug connection. Praxair stores carry a cheaper gun under prostar label a 150amp gun will cost you around 150 bucks.