Question about Hobart Handler 140 Mig Welder

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Have an old hobart handler, wire goes fast then slow etc. already

Have a new liner. We are wondering if the neg and pos leads are incorrect inside the machine, as it is the neg now goes to thur the wire side and the pos is now thru the neg clamp back to the machine. This is an old machine used very little, can get a ok bead on setting 3/ 6.9 but still spits some on the wire feed. Tryed moveing machine to 30 amp outlet not much better with more amps avaliable.

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This is wierd .if your getting an ok bead i would nt change the machine any.is the gas on?change the setting some go up on the wire settings slow .go up on the amps slow. the machine should sound like bacon frying consistently fast.try that and see how it goes.jojogunn

Posted on Mar 15, 2009

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I have a hobart Handler 135 and it won't feed the wire correctly. At first it will feed about 6 " of wire then it goes down to about an inch at a time then it will just click. If you wait awhile it will...


If you completely remove wire from unit does it still slowdown and stop when you pull trigger?
If yes, then 2 most common problems are
A. Thermistor @ position PTC1 on circuit board
B. Drive Roller Motor

To diagnose, locate thermistor @ position PTC1 in upper middle part of circuit board.
It's yellowish round and about 1/2" in diameter.
Jumper Accross the 2 leads, use a small insulated screwdriver or meter probe.


1. Pull trigger on gun, when motor slows or stops then jumper the leads, if it speeds back up then it's the Thermistor
Replace with a Raychem RXE 1.85A @ 72 v
Or comparable, try EBay

2. If no change, isolate motor by removing the 2 leads and connect a 9-12 volt DC battery source, does motor spin? If not then motor is problem. If motor spins and is constant then additional troubleshooting needed, next possible issues are bad resistor or scr

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Jun 06, 2014 | Hobart Handler 140 Mig Welder

1 Answer

Wire feed is not stable on Hobart handler 135


is this a lower end machine ? the cheaper machines take the power from the welding transformer to power the feed motor and as a result the feed isn't stable, also is the wire liner and tip in good condition if not replace them, try blowing through the liner with compressed air to clear any dust from the wire

Sep 17, 2013 | Hobart MIG Welders

1 Answer

When wire stop coming out due to dirty end ect., wire rolls up inside machine??


Feed wheel tension is a little bit too tight, or the liner may be damaged.

Mar 28, 2012 | Hobart Handler 140 Mig Welder

1 Answer

Hobart handler 135, the wire starts to feed for about 15 seconds then slows and stops.


Hi:
Don't know how old is your unit but my guess is that your gun's liner is the problem. Have you change it lately? If not, change it. Does your machine just stops feeding the wire or does it shuts down? If it just stop then; is the liner, if it shuts down; then you have a pc board problem.

Oct 29, 2011 | Hobart Handler 140 Mig Welder

1 Answer

I got some lose wire stuck in my leads on the welding machine where instead of the wire sticking out of the nozzle it is on the other end and i can't pull it out from that side. I don't know...


Hi:

You are worrying too much, just take out the inner liner and replace it for a new one. A liner will cost you around 15.00 and it is pretty easy to change. Check your onwers manual or email me for step by step liner replace.
Best regards,
luis_david@juno.com

Aug 10, 2011 | Hobart Handler 140 Mig Welder

1 Answer

I purchased a used Hobart Handler 140 and I think it might have a problem. No matter what Amperage setting and wire speed I can't get any penetration. I am using .30 flux core wire, no shielding gas....


Hi there,
Sounds like you liner may be bad.There is a plastic tube that the wire travels through to the gun.The teeth marks from the feed wheel acts like a saw and can cause a short.Then the liner carry's part of the voltage.Look for a blue color on the liner. Here is a video that shows how to change a Hobart liner .You may want to multi test first for contanity with the power off.

Thank You for choosing FixYa.com.

http://www.youtube.com/watch?v=4X-7K6RVGqg&feature=player_detailpage

May 30, 2011 | Hobart Handler 140 Mig Welder

1 Answer

The wire was not coming out and broke off at connector how do i feed wire back through and remove broken wire?


You need to remove the gun's liner and try to pull it out with pliers, if you can't then just replace the liner for a new one.

If this was useful to you please vote. Thanks!

Feb 17, 2011 | Hobart Handler 140 Mig Welder

1 Answer

Hobart handler 140 wire feeds properly, will not weld


If it is new i would not play around with the welder Just take it back to where you bought it get them to replace it under warranty

Jun 10, 2009 | Hobart Handler 140 Mig Welder

1 Answer

Trying to weld with Hobart 125 EZ


If you are using flux wire and not shielding gas, your clamp should be positive and the wire should be negative. Heat is provided by the electrical arc that happens between the wire and the material. Your welder by itself does not pre heat the material and with 3/16 material you should not need to preheat anyway.

The electrical arc is kept consistent by adjusting the wire feed rate and the current applied. You will need to experiment with these settings to find what works best with your welder. For this welder and 3/16 material, I would suggest you start at the upper end of the current scale and about a third of the way up on wire speed. The welder might have a chart for these settings in the manual or inside cover.

If the wire feeds too fast, it will push the probe around and you will feel pressure as the wire feeds out. If the speed is too slow you will get large spatters and intermittent arcs. When properly adjusted the arc will sound even and consistent. The arc gap should always be about 1/8 of an inch.

To maintain enough heat for good penatration, do not move the probe too fast, work in a pattern and watch the weld pool (melted metal) and not the arc. Watching the weld pool will clue you in if you are moving too fast or too slow.

I hope this helps.

-Scott

Feb 03, 2009 | Hobart Handler 125 Ez

1 Answer

Seised wire inside feeding tube


You can replace the liner by removing the shroud tip, and pulling the spring (liner) from the machine end of the trifgger cable.
Liners are replaceable.

Dec 23, 2008 | Hobart Handler 140 Mig Welder

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