Reactor in a portable Miller Big 40 welder?

[jimbo]

You can fix it yourself. No problem. Take a look at this African Welder.

[Rich B]

Very nice welding there JugDish. Where are your gloves and shield? Oh you don't need those, righhhhht! Mr Miller would be proud of your ingenuity....thats what he did back in the 20's or 30's

I think you can get a coil wound right in the back of most any Dunkin Donuts or Quick Check....WalMart super centers also might have a dedicated group of coil winders in the back.........


It's all in good fun here gents.....

[Thatguy]

Originally Posted by jimbo

You can fix it yourself. No problem. Take a look at this African Welder.

I wonder how they make their Hi-Def TVs. . .

[Thatguy]

I guess you could leave wire 37 disconnected, if the inconvenience of this 'costs' you less in dollars per week or dollars per usage of this welder, than the one-time cost in dollars to repair.

Please post back how you decided this issue.

[inillinois2]

Am leavin the welder as is with one lead of coil unhooked. Usage is pry only about 20 hrs a year and have brand new Miller Bearcat 300 to use plus 3 other portable (propane) welders. Thank you all for your help on this matter, maybe look u up when the TMC 150 Thermatool) goes haywire, but can usually handle it! Thanx again !!!!

[Thatguy]

Now if an OP comes along with a bad MIG welder, we can all reverse-engineer that thing.

[Rich B]

Mig welder = AC input power....main tranformer.....main rectifier.....cap bank.....stabilizer (Z-1 again)......control section......solid state for new style.....contactor, relay and pots for old stuff......wire feed motor drive and gas solinoid and a gun......No reverse engineering needed on those just bring it to me and I will fix it.......




P.S. I have never heard of a Miller Bearcat? They make Bobcats, Trailblazers and have one machine called a Wildcat but no Bear cat that I am aware of anyway.......Whats in a name anyway? They are engine driven welder-generators and some are also Inverters........I have worked on most everything they make from big to small...Mig-Tig-Stick-Inverter.....


P.S.2 for my friend ThatGuy the engineer........If you want a real challenge....try an Inverter based machine....good luck! LOL.... and be sure to be carefull there.......the cap bank on some of those machines has over 900volts of stored energy after the power is OFF! You could reverse engineer yourself right into the hospital with one false move......

[inillinois2]

Excuse me for the name mix-up, bobcat. Is brand new and right out of the box. haven't really even looked at it...........thanx for your input tho.

[Thatguy]

Originally Posted by Rich B

the cap bank on some of those machines has over 900volts of stored energy after the power is OFF! You could reverse engineer yourself right into the hospital with one false move......

I'm surprised I don't hear about people being killed while fixing microwave ovens. Supposedly, over 1 joule of stored energy can be fatal.

[Rich B]

I have never touched a Microwave and know zero about them. I have a Litton that is probably 25 years old and works fine. I don't use it much anyway. If it failed I'd throw it out in a heartbeat especially after reading some of this...



http://www.repairfaq.org/sam/micfaq.htm#micsaf