The feeder motor, gearbox and all the rest of the feeder unit is mounted on a fiber plate to insulate it from the case of the machine. Something is grounding these parts to the machine frame. It might be some tools laying in the bottom or a buildup of scale and conducting dirt inside the machine. If you understand what I am telling you, an ohm meter set to ohms X1 may help you find the problem.
Let me know if you locate the problem.
SOURCE: WILL THE LINCOLN SP125 MIG WELDER WELD ALUMINUM AND STAINLESS?
The mig welder should be capable of welding aluminum not stainless but the makers should be able to give you more detail. mig is used for steel and aluminum normaly but I do not know this transformer
SOURCE: My Lincoln 135 mig welder suddenly doesn't have enough arc
check the diodes that there not short or open circuit you will need a meter with diode test..
SOURCE: Lincoln Weld Pak 100 arc welder troubleshooting
There can be a switch that makes the wire electrically "dead" so it can be fed through the liner. Also suitcase style welders have a sensor wire with a clamp that must be connected for the arc to be able to be struck.
SOURCE: how do u change the
Hi: a. Lay the gun and cable straight on a flat surface. b. Remove and save the gas nozzle and nozzle insulator. Make sure that the set screw in the gas diffuser is backed out so as not to damage the liner. Use the 5/64" (2.0 mm) Allen wrench provided with your new liner. Remove and save the gas diffuser from the end of the gun tube assembly. Remove and save the liner nut from connector end. c. Remove old liner and insert a new untrimmed liner into the connector end of the cable. Be sure the new liner it's appropriately for the wire size being used. d. Before installing the gas diffuser, fully seat the liner bushing in the connector end and install the liner nut and finger tighten. e. Be sure the cable is straight and then trim the liner (all new liners are over-sized and need to be cut to your gun lenght) 9/16" to 1" over sized to the length of your gun without the tip holder. Remove any burrs from the end of the liner. f. Screw the gas diffuser (tip holder) onto the end of the gun tube and tighten with the wrench provided. g. Tighten the set screw in the side of the gas diffuser
That's an easy one. First unplug power cable and remove the gun from the machine.
against the cable liner using the Allen wrench provided.
h. Replace the nozzle insulator and gas nozzle.
That's it. If this was useful to you please vote.
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