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Try this... Start the set and with S1 held in the START position and repeat the voltage measurements listed in the PDF that Guy posted. Post up the AC and DC voltages you measure across the pairs of terminals.

For the 802A/803A version they are $175 shipped. MEP-802/803 Voltage Regulator For the MEP-804A, MEP-804B, MEP-805A & MEP-806A they are $190 shipped. MEP-804A, MEP-804B,MEP-805A, MEP-806A Voltage Regulator I have both types in stock ready to ship.

Kevin, My controller card has the 831's wire numbers listed in small lettering below each terminal on my controller. All the wires in the 831 have a unique wire number stenciled on them periodically. To figure out which wire is which you may have to cut the zip ties on the wire harness so you...

That's exactly how I repaired by 802A years ago. Still holding strong.

At some point you'll want to verify the Governor Controller is operating properly. The -13&P TM for the set has the adjustment procedure. Without the inverter connected you may want to verify that the governor controls the engine speed to the no load speed of 3,050 RPM. RPM can be verified my...

If you unplug all 3 white connectors from the inverter the inverter will be disconnected except for it's 3 output terminals. At that point the inverter will not be receiving any power from the PMA and all the control signals in and out of the inverter are disconnected preventing the inverter of...

Relay K12 (the leftmost one) is controlled by the Fault Panel and the Short Circuit relay inside of the inverter. If the Fault Panel detects a fault or if the inverter detects a Short Circuit it sends power to the coil of K12 causing it's contacts to open/close and cause the LED inside of K12 to...

The LED inside K12 indicates the set detected a fault and has cut power to the governor controller in an attempt to shut the engine down. The battery charger is missing from your 831. The factory fuel filter has been replaced with some other type of fuel filter. When pull starting the Low Oil...

Curious.... Can you explain?

Here is the MEP-831A Governor Adjustments procedure that was published by the governor manufacturer. It's an improvement over the procedure in the -13&P TM as it contains better pictures and an additional adjustment step.

Guy, sent it to you

You ought to set it to be 0.775" for starters. That measurement is from the top of the head of the bolt to the plate it screws into. Be sure to loosen the Black knob before adjusting the top bolt. Once the height is set and the lock nut tightened then move the Black knob as far as possible...

PM your email address and I'll send it to you. Don't see a way to attach it to a PM...

I's the latest version off GAC's website. Has color pictures, where to have the governor springs should be, how to do the adjustments and a step to adjust the Start/Stop knob. I'll upload it to the TM section and post the link in this thread in a bit. Correction..... Correction...

I'll post up a measurement of approximately where the top adjustment screw should be set. You don't need the locking wire. It along with a lead seal are installed at the factory once the set is adjusted and is there as a reminder not to mess with it. There is also a lower adjusting screw but...

In my 831's I installed 17.5 AH 310 CCA AGM's These.. --> Batteries Plus Battery

Same here in both of my 831's

Be sure the diode CR3 is there. Without it the contactor will not stay closed.

3KW'S posts and nuts are smaller than the 5 & 10k's

Yes, the Black knob should be in the START position and locked in place. It should remain locked in the START position at all times. Observations from looking at your pictures... 1) The Green Governor spring is in the correct position - Good 2) The top adjustment bolt has had the factory...