Harbor Freight spool gun - Miller Shop Master connection

admin

Not sure if it is possible....... I would like to use my  friends HF spool gun, but not sure on how to make it work with my Miller Shop Master power unit.  Any help would be appreciated.Thanks,NTLincoln Tig 300Miller Dial Arc HFHobart MigLincoln LN 25Atlas latheAnd a lotta other stuff
Reply:If post the Wiring-Diagram i can help.Most spool guns work on 24 volts .But I need to look at schematic. Dave  Originally Posted by nordictomNot sure if it is possible....... I would like to use my  friends HF spool gun, but not sure on how to make it work with my Miller Shop Master power unit.  Any help would be appreciated.Thanks,NT
Reply:Trying to use the Vulcan or titanium model?Just a quick look of harbor freights web site, the titanium appears to be set up for harbor freight machines only. The Vulcan looks like it might work on small Lincolns and Miller's if it comes with two different power pins.To use the Vulcan on the SHOPMASTER you will need to modify the feeder.You will need use of the wire drive motor pcb. You add a switch between the feeder drive motor and will need to add two sockets to the feeder trigger plug for the motor.Switch sends motor power there. You also will need a Miller power pin so it can pick up gas and weld power from the feeder. You can call Harbor Freight tech support and ask them if they have a way to connect the spoolgun to the feeder you have with the shopmaster. Go to harbor freight.com and look up the spool gun at the bottom of the page is the phone number.
Reply:Yes it can be done.I do not data to tell where the wires go.The photo is from Harbor Frieght it shows a little data https://www.harborfreight.com/omnipro-220-industrial-multiprocess-welder-with-120240-volt-input-63621.htmlDave Attached ImagesLast edited by smithdoor; 06-23-2021 at 02:48 PM.
Reply:Originally Posted by smithdoorYes it can be done.I do not data to tell where the wires go.The photo is from Harbor Frieght it shows a little data https://www.harborfreight.com/omnipr...put-63621.htmlDave