Recent content by Saunders

Finally got this problem figured out! Ended up being the quad mod fuse was bad. I previously checked between the two ends of the fuse and got continuity, so figured it was good. But, I made the careless mistake of not removed the fuse from the holder when I checked it. I was basically...

Thanks GuyFang again for taking the time to assist. I'm sure there are others who may be in this same boat and can benefit from your experience. Sometimes I have to read the same thing several times before it makes sense and sinks in. I'll post what we find when we get back out there. It's...

Just to clarify, when you say you can use the stator from a 400 hz gen, you mean the "exciter stator" and not the main stator correct? If I understood right, in my case getting 120 volts on the legs with the start switch engaged indicates the exciter stator is likely ok? I'll do some more...

Assuming the wires 7&8 are not broken, what would you suggest checking next? On my initial checks to test the voltage regulator, we weren't getting any voltage readings on 7&8, but that was with terminal 6 disconnected per procedure and the L0,L2, &L3 leads mis-connected from K1 to S8 which...

With the S1 held in, we got 120 volts off the the main leads (ground to L1 and L3 single phase). Also, got 120 volts at the convenience outlet with it held in as well and back to 20 volts when released, same thing in 3 phase mode. Didn't measure volts at 7&8, will try that next time I back out...

Well, we found three main wires from the K1 to S8 were on the wrong legs. Got that corrected and checked all other wire on S8 switch and K1. Now get voltage on the correct Legs. However they’re still not right. On three phase, all three legs show around 20 volts. Single phase get 20 volts...

Thought this might be worth sharing. My MEP-803A ran ok, but whenever I put a heavy load on it, the breaker would trip. Figured I'd try spraying the contacts on the S8 selector switch with some Deoxit cleaner and work the switch back and forth to clean any dirty contacts. When I took the top...

Thanks guys for your insight. Looks like we got some detective work to do here. It'll be another week before we can make it back out there. Hoping its just a simple reversed wire connection and nothing shorted in the stator windings. I'll post the results of what we find.

Didn't think to check convenience outlet with Start held in. I'll make note of that when we're back out there. What will that likely tell us by trying that? I thought I read somewhere that holding it in too long can burn something up. If that's the case what is considered too long? When we...

Trying to help a friend get his recent auction purchase MEP-802A going. Looks mint condition with only 14hrs showing, but several cover screws missing indicating someone has been inside for some reason or another.Hoping someone may have ran into this before or can point me to in the right...

After reading up on this, it's finally starting to make a bit more sense. What was throwing me off was, I had read that with a 3 phase generator, to use it as single phase you only get 2/3rds of the output. But I didn't realize how you wire it up makes the difference (wye, delta, zig-zag, ect).

Here are some pictures of the Generator my friend had built using a Thermo King diesel he had lying around. If I don't score on a good MEP-003A or 803A, I may go this route too. It was enough work and time to where he didn't want to build another one, but It ought to be a fun project.

I guess the question I was trying to understand is, what makes a 12 wire generator head single or three phase, is it the voltage regulator attached to it and how it's connected, or are the windings inside setup differently? With all the aftermarket AVR's that are available, can any 12 lead...