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Ok, 22 volts indicates a continuity problem from there to the Exciter or the Exciter itself. The power from the VR to the Exciter goes thru the P5/J5 connector. I'd suggest checking the 4 pins in those connectors for corrosion. Then check the resistance between P5 pins 1 and 2 to verify...

OK, as you move S1 from RUN to START do you see K15 moving?

I'd suggest measuring the DC voltage across A1 terminals 5 & 6 with the set running and S1 in Start to see if the set is flashing the gen head. The voltage there should be approx 7.6 volts DC. If you get around 7.6 then the flashing circuit is working. If you get around 24 volts then there is...

Yes, It has to be removed to do the testing as I showed above.

I posted the schematic of the A5 card a couple of posts back. Here it is again.. Here is the test setup and test procedure for A5

Proper voltage with S1 in START is a good sign. To see if the Quad winding is putting the proper voltage measure the AC voltage across A1 terminals 7 & 8 when S1 is in START while it's running. YOu should get approx 69 volts AC there. If so the Quad windings are working. Also measure across...

edit... OK then you ought to do the Voltage Regulator testing listed in the -24 TM.

114 is close enough. Just needed to see if the set was able to "flash" or not.

That's the correct fuse. Do you get ~120 volts AC at the convenience outlet when you have S1 in the START position while running?

R3 is a 1,500 ohm resistor. It provides power to the diode bridge CR4 which in turn provides DC power to the K7 relay coil causing K7 to close.

PM inbound

I've been looking around to see if I can acquire or get access to an 002/003 for such an undertaking. No luck yet.

Search MS24166-D1 on ebay. Lots of listings

FYI there are two different relays used in there. The 2 left relays K12 & K14 are 24 DC coils. The rightmost relay K15 has a 120 VAC coil. Some people accidentally plug a 24 volt one in the K15 position. Not good for the relay coil and the poor LED inside the relay! Poof!

John, With the S1 in RUN depress the lens of the contactor lamp and verify it illuminates. Are any Fault Lamp ON when the set is running? In none are illuminated then depress the Test/Reset button on the fault panel and verify all the lamps illuminate. If all the above check out then... Here...

Just one? :beer:

No diagram that I know of for the stator. It's just the 6 power windings and the Quad winding. #13 is essentially a Zip tie. The leads of the Exciter have female spade lugs on them. They get connected to #10. Then the two Exciter wires from the head are also connected to #10.

In the first cranking video showing the fuel solenoid I spotted an issue. The fuel solenoid is not causing the arm on the side of the governor to fully rotate to the RUN position. It should rotate and contact the head of the lower adjustment screw. Failure to do so will cause the fuel rack to...

Yes, the Quad winding is part of the main Stator windings. The Quad winding is what provides the ~69 VAC to power the A1 VR. I'd suggest checking the wires where they exit the gen head. I've encountered a few sets where one of the wires from the Quad winding have been broken there. Next check...

Noodling on that possibility :)