'Doomaz' <Doo..@doomaz.com> wrote in message
news:aAZNa.35800$n%5.7283@nwrddc02.gnilink.net..
When you are starting the genset, it is running from battery
power, ignoring the low oil pressure switch, and ignoring any
'stop' signal whether from local or remote switch. To switch to
'run' mode and stay running, it -must- be generating somewhere
close to the correct voltage, must have oil pressure, and
must -not- have a stop signal from local or remote switch.
As a first step, unplug the remote connector (right side of
genset control box) and try starting with the switch on the
genset - if it stays running, you have a problem with the remote
switch or wiring.
If that doesn't do it, you need to hook up a voltmeter to the
output of the genset and see what voltage it actually -is-
putting out. If the voltage is (approx 45v) and the set is one of
the early transformer-regulated Emeralds (spec A-C), you may have
blown the diode bridge in the control box. If the Emerald is a
later (electronic regulator) spec, you -may- have blown the
regulator. This is usually caused by tarnish buildup on the slip
rings causing high resistance in the field circuit - remove the
cover in the genset housing behind the air cleaner to expose the
brush holder and measure resistance from one brush lead to the
other - should be approx 25 ohms - much more than 35 ohms is a
potential problem, and will require cleaning the slip rings and
brush tips. If it's an electronic regulator set and you're -very-
lucky, the regulator may have survived and cleaning the slip
rings/brushes -may- be all that's needed.
If the output voltage of the genset is approx 120v and it won't
stay running, you may have a control board problem rather than a
voltage regulator problem.
I'll be glad to furnish detailed troubleshooting directions, but
I need to know the full model/spec of your genset (should be on
the fan housing, something like 4.0BGE-1R/26100F or similar).
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