Question about Hobart Handler 140 Mig Welder

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Hobart Handler 175 230 Volt Mig trigger depressed nothing! No drive motor running ! No gas value opening ! Fan is running! I shorted the gun wires inside the welder nothing! I checked the circuit breaker even bypassed it nothing. The circuit card assembly number is 195887. This welder I has not welded over 20 hours total in the few years I have owned it. I bought it a tractor supply. I have had it just over 5 years. Roy E. house Florida

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Also do you hear any clicking when you depress the trigger?
You should. If nottry to jump the trigger wires inside themachine right where it goes out to the "gun"wires? worksnow? problemis in the gun cord somewhere.

Still not working? CHeck the contactor. SOmetimes a boxelder bug will get inthem and prevent them from working, or the contacts fry themselves.

Posted on Oct 01, 2009

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Make sure selector switch is not in between settings, this is where the wire feed voltage comes from.

Posted on Sep 18, 2009

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Well you shorting the wire inthe machine will do no good since the contact tip gives the wire the charge. i would check to make sure the ground is connected at the machine. if that is ok u may have to open up the gun and look to make sure the wires are connected. the trigger is made out of plastic so if u abuse your welder you could have broke it

Posted on Mar 12, 2010

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1 Answer

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

Drive motor for hobart 125


Your Hobart has a Drive Motor Protection.The Drive motor protection circuit protects drive motor from overload. If drive motor becomes inoperative, release gun trigger and wait until protection circuit resets allowing drive motor to feed wire again. Or you can reset it manually by pressing the reset button located on the back welder. If these actions does not work then here's the part number for your motor:HOB 239696.Check our website for pricing you need to call since this is an old welder and pricing needs to be search at Hobart Co.
http://www.praxairdirect.com/webapp/wcs/stores/servlet/TopCategories1_10152_10051_-1

Nov 21, 2011 | Clarke Power Products Clarke 130EN Mig 110...

1 Answer

I have a hobart 135 handler that with machine plugged in and turned on the wire has constant juice and the gas cylonoid is flowing gas from the bottle without the trigger being pressed. my dealer said it...


Hi:
Have you disconnect the gun's power plug? If the wire and gas stop flowing by doing this action, then your problem is the gun's trigger. If the machine continues to feed gas and wire with the gun disconnected then yes, it is the pc board.
Good luck.

Aug 25, 2011 | Hobart Welding Tools

1 Answer

My hobart handler 120 will not feed wire. took the feed motor off and tested. Its good. checked the trigger connections and they are both in good shape. The gas valve does click when the trigger is pulled....


First take our the spool of wire, then without any wire restriction, disconnect the gun from the machine and bridge the trigger connection, if the solenoid valve opens then the motor shoulod run. If it does, then check the trigger on your gun, take it off and bridge the cables, if it runs then your trigger switch is faulty.

Dec 28, 2010 | Welding Tools

1 Answer

My hobart handeler 125 will not stop feeding after i release the trigger, why?


The trigger is bad in the gun. It sound like the spring is bad, or you have some junk in the trigger not alowing it to release. Remove and inspect/clean the trigger.

Nov 04, 2010 | Hobart Handler 125 115 Volt 30 To 125 Amp...

1 Answer

Have Hobart 140 Handler, The motor won't run to feed the wire, even whith out wire. gas will come on when trigger depressed.Where can I find parts to fix?


You need to look at the wiring diagram to see what parts could be causing the problem. I had a 120 that did the same thing and it was the bridge rectifier that was bad. I unhooked my motor and hooked it to my battery charger to see if it was good.Hope this helps. I will see if I can find a diagram to look at and check back later to see if you have fixed the problem.

Aug 07, 2010 | Hobart Handler 140 Mig Welder

4 Answers

I have a hobart handler 135


You do not indicate if the wire is already out of the nozzle. If not, commonly the wire can jab the side of the tube it runs through and cannot advance.

IF the wire is already threaded, then there MAY be a fuse to protect the motor.

The click MAY be the gas valve, or the relay driving the motor and/or the main transformer for welding current. The circuitry for these is relatively simple and a voltmeter is your friend to troubleshoot this.

Oct 26, 2009 | Hobart Handler 140 Mig Welder

1 Answer

My hobart 135 will not feed wire. I checked for voltage at the drive motor no voltage. The gas still comes on when trigger is pulled but seems that the problem is in the control board?


does it have a reset button? if so it has gone bad, if not there is a fuse or something inside. they protect that circuit against shorting at the working end of the gun. happens ALL the time.
Hawk

Mar 31, 2009 | Hobart Handler 140 Mig Welder

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