Oct 20, 2013· Miller Big 40 - Welder output issues We have a 1979 Miller Big 40 that has some issues In order to get it to weld properly, we need to have the amperage control maxed out, and even then the beads are too cold.
I have a Miller Big 40 welder, serial # HD71116, that was welding perfectly about a month ago. It isn't used often. I tried to weld with it today and it would not weld or run A/C tools from the outlet.
Miller Big 40 Diesel Welder Power Generator for parts not running: $1. This generator is being sold as is for parts only The generator was run out of oil and the engine is bad however all the parts on it are in good working order for local pickup only I have a forklift here to help load note I will wrap in shrink wrap and load it on a truck if ...
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I have a Miller Big 40 and it's always run well for me. On occasion I do some heavy machinery welding repairs, so the available amps are nice. As a general machine - as mentioned it might be a little overkill.
Miller Big 40 welder for sale in Kansas Miller Big 40 welder | SOLD! April 14 Construction Equipment Internet Auction Miller Big 40 welder DC arc welder, Continental four cylinder engine, Has not run in several years.
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Feb 09, 2017· I have an old Miller welder which has a bad weld idle control module. The idle solenoid is still good (I jumped 12V to it and it got magnetic, plus the coil has the right resistance reading).
miller big 40 Back from short trip. Checked continuity from slip rings back to rectifier. All checked out at less than 1 ohm. Additional history is unit was working, was towed a few miles and engine would not …
Jan 29, 2012· Re: Help miller big 40 no output Most Millers have a wiring diagram under a cover somewhere on the machine. If not, you can Google "Miller Big 40 manual" or even "miller welder manual" and get several hits.
Miller Big 40 Engine Drive Welder. Miller Big 40: A discussion of Engine Drive welders would not be complete without talking a bit about a classic engine drive welder, the Miller Big 40. This Model has been around for years, but what it stands for has changed. Ours is a 1979 model and far from the oldest 'Big 40' on the planet.
SOURCE: Miller Big 40 will not weld and has no current at the A/C outlet open inspection door,which also the fine tuner knob is,there's a 2x4 size circut board that snaps out with little force to remove,this is the voltage regulator board,look for 4700 ohm resisitor burnt into,tv tech can fix or order new board at $227.00 what i paid.
Miller Big 40 welder. Trailer mounted. No other information is known about the welder. Concerns: The welder has not been used for 10 to 15 years. Its condition is unknown. The tires are flat, therefore, not …
Big Blue® 800 Duo Pro Engine-Driven Welder A complete multi-process & multi-operator welder/generator that delivers two independent pipe quality arcs in one complete package. Equipped with ArcReach® technology, operators can change weld settings from the ArcReach feeder or remote.
Jul 08, 2018· Re: Miller Big 40 won't weld no AC Thanks the sn is HJ 198309 But I think someone may have changed the front panel as some of the wires do not match so I used a manual from about a year earlier which is the hh series.
Manuals & Parts Find replacement parts and get the most from your Miller products by downloading the specific Owner's Manual for your unit. From safety precautions, operations/setup information, and maintenance to troubleshooting and parts lists, Miller's manuals provide detailed answers to your product questions.
Miller Big 40 will not weld and has no current at the A/C outlet I have a Miller Big 40 welder, serial # HD71116, - Welding Tools question MILLER ELECTRIC BIG 40 DIESEL BROCHURE & SPECS … View and Download Miller Electric Big 40 Diesel brochure & specs online.
Nov 26, 2009· Miller Big 40 will not weld and has no current at the A/C outlet open inspection door,which also the fine tuner knob is,there's a 2x4 size circut board that snaps out with little force to remove,this is the voltage regulator board,look for 4700 ohm resisitor burnt into,tv tech can fix or order new board at $227.00 what i paid.
Nov 03, 2009· A Big 40 is usually a Continental 4 cylinder engine driven welder. All Miller welders produce AC weld output and use a rectifier for DC weld output. The rectifier on one of those is maybe an arrangement of stud diodes mounted on the endplate or more likely a set of diodes mounted in a grid of flat plates as a complete unit.
Mar 19, 2017· Re: Miller BIG 40 wont weld If I ever sold my SA the 325EFI would be my choice hands down. The welding at idle is a huge plus for me as the noise of those lawnmower engine welders screaming at 3600rpm drive me crazy.