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That is just a solar panel. You'd want a charge controller between it and your genset batteries. Not good to hook the panel directly to the batteries as it could/would overcharge and ruin your batteries.

You should be able to crank and start it without the diode on S1. I looks like it's purpose is to keep the pre-heaters warm right after doing a pre-heat and keeps them warm while cranking.

I noticed the same thing on my 831A's. Maybe GAC re-designed them at some point.

They would have started it by applying 24V to the slave port on the 803A. 803A's are made to be jump started via the slave port and can run and make power without batteries once it's started.

The wiring diagram is in the -34 TM. It can be found here: https://www.steelsoldiers.com/showthread.php?155935-All-the-TM-s-you-need-to-work-on-the-MEP-002A The -34 is the 2nd document from the right. See PDF page 35 for the wiring diagram.

Pictures fixed. Chris, I started with the Arduino Uno, then switched to the Arduino Nano for the first breadboard and finally to the ATtiny85 for the prototype shown above. The ATtiny85 has limited I/O but was more than adequate for my application. I use 2 analog inputs and a single PWM output...

MEP-831A SLC100 Governor Controller Having purchased a couple of MEP-831A's I found that the SLC100 Governor Controllers are problem prone. The two Tier 2 Reset units I purchased with just 2 hrs on the clock both randomly exhibited surging issues as well as random WOT issues. Adjustment of...

Maybe modify all the existing latch's to "lock" them. A low buck method would be to drill and tap a hole in each latch plate. Position the hole so that when a bolt is screwed into the tapped hole from the outside it prevents the latch from rotating. Use an uncommon bolt such as a security torx.

MOV stands for Metal Oxide Varister It's an electronic component about the size of a penny and is usually used to protect equipment from voltage spikes and surges. They are commonly used inside power strips that have "surge suppression" built in. The MOV is an "open circuit" under normal...

If you like I'd be happy to send you a MOV. I keep some on hand to supply to S.S. members. PM me your name and mailing address and I'll send one to you. :-)

More ideas in this thread -> https://www.steelsoldiers.com/showthread.php?163227-Has-anyone-put-casters-on-their-802-or-803&highlight=casters

For me I mounted my two 831's on stud mounted casters. They bolt right into the existing holes in the 831 skid.

As suggested I let the 831 sit un-used for about 3 weeks in the garage. Wheeled it outside today, fired it up and it started and idled properly. Let it warm up for a few minutes, no surging at all. I then applied a 3,000 watt load to it (two 1,500 watt heaters). As expected the RPM's went up to...

I did a bunch of Googling and I found a reference to NAVAIR 19-20D1 being the illustrated parts breakdown for the unit. Couldn't actually find the document online though.

There are some available at: http://www.liberatedmanuals.com/search.mpl?q=MEP-807a+generator&Search=Search TM-9-6115-729-10 TM-9-6115-729-24 TM-9-6115-729-24P Schematic is in -24 starting on PDF page 943

Nice work! Give me a few ideas on how to improve my setup. I did a few things to my 802 to make it quieter. - Removed the hoisting rings because they rattle and clang while the set runs. They can always be bolted back on if needed. - Removed the ground rod set because it rattled a bit while...

Good point. Reverted to toggling the heaters off and on for the remainder of the hour long run. Controller behaved perfectly for the run. Smooth RPM increases and decreases based on the load applied. Will do additional tests in the coming days and weeks and will post updates. Will be letting...

Re-installed it, started the unit, tuned it per the instructions and it's working perfectly so far. Currently running it with a 3K load and periodically opening and re-closing the contactor to be sure it throttles up and down smoothly without surging or hunting. So far so good at about 20...

My Noco 7200 brought both of my ~14 volt MEP-831 batteries back to life and work fine now. :)

Just put a new SCL100 in one of my 831A's with a faulty governor controller. Found I had to back the Gain off a bit more than specified as it would idle down really low when dropping the 3K load and then surge back up just before stalling. Once I backed off the Gain it idled down smoothly when...