20 Most Recent Lincoln Electric K1297 AC/DC 225/125 Stick Welder Questions & Answers

Fan Motor MOTOR
2910.0
230.0 AC
Here is a Picture of the wiring Diagram that should be on the inside of the rear cover If this is hard to read Here is a link to the original

No it has a lock out best is lieve it on when working

Buyer beware. Contact the manufacturer and replace the needed parts.

weld current output regulation on this machine is usually accomplished by voltage supplied across a 50 milli volt shunt that is usually connected at one end of the main rectifier, if this shunt fails, or if the connections are loose or damaged, you will not have current control, your control board may also have some issues Upon removing the machine covers, if there is no easily seen damage, it will be best to seek out and take it to an LASF for repair.

try the company web site

Time to buy a new one

The leads are soldered to the switch internally. I performed services like that for 18+ years and if you're not familiar with using a brazing tip and silver solder, I suggest you take it to a professional. It won't be easy and you run the risk of damaging your machine.

Check the dial indicator. Sometimes if someone changes the amps while welding, there will be a break in the coil. It will work at a different setting as long as you are away from the break.

there is probley nothing wrong its called duty cycle.which means that if you are welding long periods or welding at max amps the welder will kickout to cool down.Look on your unit for the tag that tells imformation about your unit.It will show something like 30% duty cycle so that means you can weld 3 minutes at full power before the unit shuts down.

make sure there is nothing getting in the way of the current flowing through the ground. slow down and keep the arc close to your metal.

maybe its your volts too. make sure you are grounded properly and clean from debri's, strike the electrode like a match and keep the arc close to your work-piece. dont go too fast and make sure your not wearing to strong of a lens in your hood. gold lens number 10 are the best for 7018 rods.

Is the amperage adjust crank or the HF switch not working?To repair the amperage crank you need to buy a new shunt block screw @ $ 80.00 or make your own by threading 8" length of 3/8" BRASS rod (dont use steel). Can send pics of procedure.