Coach vs. Generator batteries on FC

[pattypape]

Scott, it seems that your 82 is a bit different,
But this is how I understand my 88 FC. The auxilary battery switch
energizes the solenoid, to start the engine with the gen battery
or the engine battery can start the Gennie. Works both ways.

Form the 12 volt solenoid connection terminal, a high current wire
is connected to the leveler motor to run this motor.

This is the confusing part:
The other solenoid (or in my cast a diode) is used when charging
the generator battery, it is energized from shore/generator power or
from the alternator when the ignition is in the "ON" position.
This method isolates the generator battery from the engine battery.
Someone can correct this if it is wrong or more confusing.

Bill 88 FC Michigan.

--- In WanderlodgeForum@yahoogroups.com, "Scott Forman"
<sforman@...> wrote:
>
> Hello all,
>
> I have just finished removing my leveling pump from beneath the
stair
> well in anticipation of receiving a new one. While under there, I
> have noticed various battery connections. I am looking for help
to
> understand it all.
>
> It appears that a cable comes from the generator battery to the
> solenoid on the leveling pump. On that same pin, there is also
> another battery cable coming from a shunt attached to the back on
the
> step well right next to the leveling pump. The other side of that
> shunt then has a cable that seems to come from the coach battery
bank
> and there is another solenoid attached here...I am assuming this
is
> the solenoid activated when you hit the battery boost switch on
the
> dash to tie coach & gen bats together.
>
> A couple questions:
>
> 1) Does this all sound correct?
>
> 2) It would appear that the coach and gen bats have a connection
to
> each other through this shunt whether the dash switch is activated
or
> not. If this is the case, what happens when that solenoid is
> activated?
>
> 3) If the coach bats and gen bat are always tied together,
couldn't
> the coach bats draw down the gen bat in a low voltage situation
and
> leave me stranded? I was under the impression that if I ever ran
my
> coach bats down dry camping, it wasn't a big problem as the gen
bat
> was isolated I could start the gen to charge the bats.
>
> Just trying to understand all this and make sure mine is wired
like
> it should be. This area doesn't seem to be covered on any of the
> blueprints in my blue box.
>
> Thanks
> Scott Forman
> 82 FC35RB
> Memphis
>