Helping out some friends departing on a voyage soon. My job for the day was finally installation
of a Fridge system. My job compleated and while monitoring voltages and currents, while they were moving the vessel to Fuel dock
. I happened to put my Amp clamp meter on the Perkins
, Leece Neville Alternator
to check if it was working, 40Amps at idle, not bad, then they engaged the bow thruster and the Alternator
amps dropped to zero, this happened several times on both alternator cables
. The thing is that the bow thruster is hydraulic, its engaged by a electric clutch
, at least 15 amps I saw the Amp meter move on the main panel.
You got to understand on this vessel, a 65' Swan, Heath Robinson has been at work and no electrical
The problem is not a voyage stopper as it probably has been like it since Bow thruster installation
about 5 years ago.
So why did the alternator amps drop to nothing?. I'm thinking the Clutch
takes power from the Ignition circuit and although enough to kill alternator output, no other consequence.
Any other thoughts and would you bother with a repair.?