New Hobart Mig

[JGrefenstette]

I just yesterday bought a Hobart 140 Mig 115 volt. I have been welding for a little while now. I havent had the chance to use the new machine yet. THis is my first welder, i have used my buddys Millermatic 135 since i started. thats the machine i learned on and its the one ive done most of my work with. So my question is, are there any real diferneces i should know about detween the two machines. and also, its been a little while, and i cant remeber, about the regulators, where should each gauge read, and what does each gauge indicate? also how much should i open the flow valve on the regulator? Im useing the standard 75% argon 25% Co2 mix. I hooked everything up (gun, ground clamp), changed the polarity for GMAW, and i think that everything, except for the gas. also, what is the 'purge' setting? its beneath the #1 faze on the amperage dial. and my final question is, can i run the welder from any outlet in the house. its a 115V but i just am not totaly sure just outlet will hold up to it, and i dont want to risk starving the machine and burning it up. it has the antioverload and all that stuff, but i also dont want to blow breaker or anything.



my reason for not fully understanding this is, ive never set one up before, ive just flipped the switch on my buddys machine and started welding. any advice would be apreaciated.



Jimmy

 

[GHarman]

Jimmy, First thing is to check the input amperage. Match that with the circut you intend to plug it into. I usually set my flow meter at 10CFH flow rate ( the ball on 10 ) more or less as the situation demands, gas is expensive, use only enough to get adequate coverage. I have always used a flowmeter that was preset at the factory for ( if I remember correctly) 40# delivery pressure. Flow rate and pressure are different! Make sure your gauge set has the correct fitting for your bottle. You may have the wrong regulator/ gauge setup? If they indicate bottle pressure and delivery pressure with no flow indicator, you have the wrong setup. The purge setting allows gas to flow when you pull the trigger before the weld is started to provide a atmosphere condusive to a good weld initiation, without atmospheric contamination. Hope this helps. GregH

 

[JGrefenstette]

ok heres one for ya.

was feeding the wire in today for the first time, and it all went fine, untill it made its way to the gun. it hangs up somewhere in the gun assymble everytime i have to feed it. once it gets through with great force it runs through fine, but the initial feeding of it hangs up real bad every time. i dont no why, it hasnt been bent or smashed or even hit in any way, its brandnew. any sugjestions?

 

[WDixon27]

unscrew the tip on the gun and the wire should go though then put the tip on



edit, i reread the post you may have the wrong size tip on for the wire diameter, the # should be stamped on the tip . 025 or . 030

 

[GHarman]

[



edit, i reread the post you may have the wrong size tip on for the wire diameter, the # should be stamped on the tip . 025 or . 030[/QUOTE]

Well Said. Oo. GregH

 

[JGrefenstette]

yea i feed the wire with out the tip on then put it on. but the problem is in the handle it feels like its near the trigger. and the tips are all right. im using . 035 miller tips with . 035 solid wire. its somthin with the gun assymbly i think

 

[JOdell]

when I feed wire into a gun I hit the end of the wire with a stone. It knocks off the sharp edge that your wire cutters leave behind. You can also pull the gun-hose assembly off the welder and pull out the coiled wire that houses the welding wire inside the gun-hose. There might be a kink in it. -Jason

 

[JGrefenstette]

good idea about dulling the end of the wire. ill try that.

thanks

-jimmy