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Alternator problem
Gavin
The only way to check the system is with a voltmeter.
You need to check that there is 28 volts on the F terminal of both alternators.
Also check there is 28 volts on the BAT terminal of the alternator.
If you start up both engine what is the bus bar voltage, should be 28.75 volts.
Select the standby regulator, is it still the same.
If you have no voltage at the F terminal you have a U/S regulator check with either regulator selected.
There is a fuse involved with the system and it is mounted down by the battery box.
Hope this helps, let me know how you get on.
Pete
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