17-10-2020, 09:42 PM
Presume from it's place in the circuit that the cutout relay has been replaced with a power diode and the original open wire wound resistor has been replaced with a power resistor. A basic test of the diode with a meter on the lowest Ohms resistance scale would be to make sure that you have continuity in one direction only. Just reverse the meter leads when you see continuity across the diode and continuity should disappear. With the meter on the same lowest Ohm scale you should see continuity between D and F2.