View Full Version : Lincolin SP-175 plus welder problem

08-24-2009, 07:16 PM
ive got a little 175 plus welder (220V) and i started having a problem with it. as i am welding, or just pulling the trigger, the wire will feed out for a few seconds and then just stop. some times it works for a minute and sometimes just for a few seconds. i have checked the trigger in the gun and it is still fine. im thinking something inside is kicking out like a relay or solenoid or something. i took the case off and there are no loose wires or anything, its only a few years old and i have only gone thru about 4 10# rolls so its not used and abused or anything. still like new.

anyone have any ideas on what it could be making it randomly stop? as soon as i pull the trigger it works again for a sec then it stops. thanks in advance.

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08-24-2009, 07:23 PM
Does it have any jeep parts in it?

08-25-2009, 04:10 AM
I had a similar prob on the Hobart Handler 185 I have here right now...

Try pulling back the rubber where the whip enters into the brass part on the end closest to the machine. The contact in there has prolly pulled lose. I did it by yankin my whip when I shouldn't have been. Not meant to be pulled so hard. (Where have I heard that b4??) I called the HobartHelpline with this problem and he had me sorted out in 2 min.

Make sense?

m j
08-25-2009, 06:15 AM
how is the liner in the whip?

08-25-2009, 11:13 AM
simplest thing to do is to watch the rollers and if the the rollers dont stop but the line doesnt feed it is the liner or tip. Change the tip and clean out the liner

08-25-2009, 12:24 PM
I have the same welder and had the same problem, ended up something got dropped on the whip and dented the liner. When it was held a certain way the wire would stop and then and then it would go again. Once I changed it it was fine. I'm not going to say this is what is wrong with yous, but it's definitely a good place to start looking

dirka dave
08-25-2009, 12:32 PM
I have a 125, same thing happened to me. I changed the rollers and tip, works like a charm now.

08-25-2009, 12:35 PM
as long as the correct size wire is used with the correct rollers they normally last for ever. the liners get pligged or worn , they get dirt in them etc the tips wear out . go from easiest to more difficult when trying to figure it out.

08-26-2009, 06:23 PM
tip is fine, rollers are fine, liner is fine, its something electrical that is cutting out. i have been welding for 6 years and know when the tip/liner is fucked. like i said it feeds wire then just cuts out like someone disconnected the power. is there a solenoid that starts everything happening(rollers and gas) when you pull the trigger? thats sorta what i think may be the problem.
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08-26-2009, 07:28 PM
Check the solonoid for the wire can you here it click in and out? do you have voltage to the motor when its cutting out? Check the ground on the inside the welder to the case. There are usually 2 solonoids in a mid machine one for the gas and another for the motor. Does the gas flow when the motor isnt going? I would check the trigger for voltage across. Just open it up and start checking shit with a voltmeter.

08-26-2009, 09:28 PM
Just open it up and start checking shit with a voltmeter.

yah thats what im gonna do. i know where the gas solenoid is but i cant find the roller one.. ill keep poking around.
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