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On the 701A and 016B the main fuel shutdown solenoid is energized and enables fuel as soon as the master switch is set to run aux or run, prior to cranking. It is only de-energized in the off and preheat positions.On some MEPs you have to hold the switch in the start position for a few seconds until the oil pressure builds enough to keep the low oil shutdown from killing the solenoid. There is a starter disconnect so you aren't killing the starter by holding the switch in the start position. I now the MEP-003 has this feature but I'm not sure about the 701A/016B. My point is the switch in the on position doesn't always send 24V to the solenoid. There may be other variables in the circuit.
Yes, you are correct. They have both.Don't the 016Bs have low fuel and/or oil pressure safeties? That is what I meant by other variables. There is a board in there with relays that do something.
Roate master switch to START position and hold until voltmeter reads normal
operation.