: welder help


rajincajingt
11-04-2009, 12:40 PM
i have a little 120VAC lincoln and it will not advance the wire. its only 3-4 years old.

i was welding and it stopped. this normally happens when i hit the duty cycle so i did not thing much of it. i left it on and i found something else to do. after a while, i cam back and tried it again and nothing happened. so i turned it off, finished up and left for the night.

i come back a couple days later and it still will not advance the wire. when i push the trigger, it clicks, then nothing. when it is on the duty cycle down time, it will not click when you hit the trigger.

i pulled wire through the liner, its not smooth to pull through but i goes easily. i took the tensioner off the rollers and pulled the trigger, it still clicks but the wheels dont turn.

i was under the impression that these things were fairly simple. nothing but a transformer, board, and motor inside.

any idea's on what is wrong?

i dont want to take it back to the shop i brought it to last time, they charged me over $200 to change the liner out. $20 for the liner and 1.5 hours of shop time at 120 an hour!!! :mad3::mad3:

71PA_Highboy
11-04-2009, 12:53 PM
If the motor isn't turning then it won't feed.

"it still clicks but the wheels dont turn"

Maybe I am not understanding you, but it seems you already know what the symptom is: No motor go 'round.

All that is left is the Motor or the relay (motor power) contacts. Do you have a schematic?

jperecko
11-04-2009, 12:54 PM
not sure about the lincolns but I know come of the cheaper ones can burn out the feed motor pretty easily, especially if you swap up to a longer lead

~$30 for my motor when I checked... again, not Lincoln

rajincajingt
11-04-2009, 01:03 PM
If the motor isn't turning then it won't feed.

"it still clicks but the wheels dont turn"

Maybe I am not understanding you, but it seems you already know what the symptom is: No motor go 'round.

All that is left is the Motor or the relay (motor power) contacts. Do you have a schematic?

i dont have a schematic. where could i get one? ill google it in the mean time

i guess is need to open the damn thing up and get deeper. i would almost assume that the click that i hear is the motor relay pulling in.

Wyoming9
11-04-2009, 04:11 PM
The click you hear may be the gas solenoid if you run solid wire .

I am guessing board or wire motor just up and died.

sn0border88
11-04-2009, 06:26 PM
The click you hear may be the gas solenoid if you run solid wire .

I am guessing board or wire motor just up and died.

x2

cdansan
11-04-2009, 06:48 PM
My Lincoln 140C stopped feeding one day. The wire was all bunched up between the feed guide and the liner hole guide. It must have kinked and bunched up into a mess. Check the easy stuff out first before you open up the case.
Dan

IDScout
11-04-2009, 08:20 PM
Do you have a spot/stitch timer installed?

TEEJ
11-04-2009, 10:40 PM
The very first thing to check is the relay/contactor. I'd be willing to bet the coil on the relay is shot, and it wont pull in. If it has a contactor type relay, and when you pull the trigger it does not pull in, then check your voltage to the coil of the relay. If you have voltage, the relay is bad. If the relay pulls in, but you have no feed, its the motor. Clicking sound may be the relay pulling in. Check that first.

ChrisCo
11-04-2009, 11:41 PM
Ugh, my Pro-Mig 135 started doing exactly the same thing a few weeks ago. I opened it up and found a fried power resistor, so I replaced it. It still didn't work, so I looked closer and found a fried diode (which was too far gone for me to get a # off of)... so I dropped $100 on a new PCB, and the damned thing still didn't work :mad3:

I've been through that thing 5 or 6 times, and nothing seems wrong... There's just no power is being sent to the motor. I know the motor is fine, 'cuz it runs when connected to a 12v battery charger. It even has spark (I grounded it just to verify :laughing:), it just isn't sending any juice to the damned wire feed motor (checked with multimeter).

The 135 is now doing it's part to hold down my storage unit, while it's replacement rig (ProMig 180) does shop duty...which is really irritating, because I'd never had a lick of trouble with the 135 'till then.

Assuming you've got one of the *135 units, the clicking you're hearing is probably the relay on the gas regulator.

Wyoming9
11-05-2009, 02:09 AM
With your 135 i am sure you or some one else didn`t click the voltage control between ranges .

Also on those i can`t remember all this stuff but the wire feed motor pulls power off the transformer . does the fan turn on.

rajincajingt
11-05-2009, 07:01 AM
thanks for all the input guys, ill check all these suggestions and get back to you.

just for the record, im running fluxcore wire.

DownNDirty
11-05-2009, 07:10 AM
Both of my lincolns will do this. Typically it is because the voltage selector is not 100% in the right location. Changing between selections will typically solve this problem.

Now both of them have been through a couple of fans. If the fan doesn't turn on when you turn on the welder then that is a common problem. The PCB in the welder won't let the welder work if the cooling fan is not working. This requires a fan replacement.

TEEJ
11-05-2009, 08:38 AM
With your 135 i am sure you or some one else didn`t click the voltage control between ranges .

Also on those i can`t remember all this stuff but the wire feed motor pulls power off the transformer . does the fan turn on.

It should run off the transformer, to contactor, to motor. The fan should be powered seperately when you turn the welder on. Possibilities are, relay, motor, or board. I had to replace a circuit board on my miller.

rajincajingt
11-05-2009, 01:33 PM
Both of my lincolns will do this. Typically it is because the voltage selector is not 100% in the right location. Changing between selections will typically solve this problem.

this!!!

i NEVER look at the voltage knob, its always on the highest setting. i went and checked it out and it was between C and D!

i feel like an idiot but it was a cheap fix


thanks for the help.

Wyoming9
11-05-2009, 04:21 PM
Glad you found it.

Don`t feel bad I see this all the time it happens.

If you have a 110V welder this is the first thing to check when it quits working.:grinpimp:

DownNDirty
11-06-2009, 07:26 AM
Glad that was the problem. Don't feel to bad. The first time mine did that I almost took it in for warranty repair. I was literally loading it up into the truck and noticed the knob was in the wrong place.

Wyoming9
11-06-2009, 06:01 PM
That is what I mean the number of machines sent in for that problem.

Only to find out it was operator error and billed for it.

ChrisCo
11-06-2009, 10:05 PM
Glad you found it.


+1. Glad to hear it was an easy fix.

That didn't fix mine, tho. I musta broke it good while fixing it :laughing: