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Actually Gary, using two 12v chargers, one on each battery, has the small advantage of equalizing the charge of the two batteries. With a single 24v charger, if one gets charged before the other, it will get overcharged to some extent while the other one comes up to full voltage. Of course if...

The only possible problem I can think of is if the 12v chargers have output that is referenced to ground (3rd prong on wall plug). If you've already connected them and the battery voltages are doing what you expect, you've probably proven that it's OK. If there is a problem, a way out might be...

Good point, Chainbreaker. I had a failure of a regulator board that caused an intermittent zero output too. One of the small transistors had an intermittent problem, and when it went into problem mode, it made the main transistor go to full output. That was enough to shut off the field output...

The field gets flashed by the flashing circuit every time you start the engine. When you're holding the switch and the starter is cranking, the flashing circuit, if working correctly, is putting current through the exciter field (flashing it). If it needs to be re-flashed after it's running...

No, unless the starter lockout switch isn't working. There's a switch that prevents the starter from running once the engine is running, so you can move the switch back to "start" to flash the exciter field without hurting anything. The problem is that since the field got flashed when you were...

The guys I've knows who have had it happen to the point of damage found bent connecting rods. One symptom is obviously low compression.

18.6 gallons per hour. I guess that's not horrible, and would be about like 1.86 gallons per hour for a 15 kW generator, which is only a little more than something like an MEP004A uses (I think). At under 5,000 lbs, it seems pretty light for its output.

The watts needed to get a 3 phase motor started can be lower than the same size single phase motor, depending on motor types. They don't need starting switches, special starting windings and other tricks to create a rotating field out of the inherently non-rotating single phase power.

This has been talked about before, but these days you could use the 400 Hz generator to charge batteries, if you build a DC power supply for the job. Then use one or more big sine wave inverters to make 120 volt AC. There would be added expense, but you'd have a neat system capable of...

I believe the breaker that's desirable is one that if basically a magnetic type, by also has a fluid damped mechanism. At slight overloads, it acts like a slo-blow fuse, allowing the overload to go on for quite a while before the damper lets it trip. With more severe overloads, it trips...

No Guy, the question is about a 400 MHz generator, not a 400 Hz generator. The induction heater idea does seem to be a possibility. :)

You can put that part number (F03A125V30A) into www.octopart.com and see the choices. It looks like a pack of 5 is around $8.

The schematic shows it with a zillion more diodes on it, but it might work. I'd just replace the bad part(s) on the old board. The diodes are less than a buck each, and the resistor is nothing special. You can look up the specs with the NSN from the parts list and buy one or two from...

Greenmv, it's late and I'm tired, but I assume something is causing that resistor to keep trying to supply exciter current after you're done cranking the engine. I wonder if terminal 5 of the diode board isn't connected to terminal 12 of the regulator (ground), so it's trying to ground through...

Some things that it could be: * Bad CVT1 * Broken wire or dirty connector * Bad diode bridge (A4) If you disconnect the regulator from the rest of the circuit, which means at least disconnecting the wire from terminal 14 or 17 and the generator makes power, but with abnormally high voltage...

The difference is the backhoe engine is probably being asked to do some work. It's not the low RPM that causes wet stacking, it's the light load that doesn't get the exhaust parts hot.

Heck, my 003A does that for me. I've never worried about load management with it running. With a 40 kW generator your worry would shift to wet stacking.

Ha, no... I was responding to post #23, 2 up from mine.

Auto start isn't necessary in all installations. I don't mind manually starting my 003A. It lets me look over things, listen for unusual sounds or leaks, and generally stay aware of its condition. I also like to wait about five minutes after a power failure to start the generator to let the...

I recently did that with a tire pressure gauge that I thought had marks every 2 psi like another one I have. I had to go back are re-fill about 8 tires when I figured it out.