I'm sorry I can't help you with your cutoff switches, they sound very different from mine.
Quote:
Originally Posted by Sky Pilot
Also does the charging system usually charge the chassis battery as well as the coach batteries? And if they work, do you have to leave the battery switches on to charge the batteries?
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Many Monaco built coaches (mine included) do not charge the chassis battery when plugged into shore power or running the generator, only the engine charges the chassis battery. It's pretty easy to tell if yours charges the chassis battery: while unplugged, measure the voltage on the chassis battery. Then plug in the shore cord, and measure the chassis battery again. If the voltage stays the same, it is not being charged. If the voltage goes up a volt or more, it is being charged.
I used to have problems with the chassis battery running low while parked, even on shore power. I added a
Trick-L-Start and haven't had a chassis battery issue since. The installation is quite simple, just three small wires.
And yes, you usually need to leave the battery switches on to charge the batteries. This is also easy to verify using a variation of the above procedure: plug in and turn on the battery switches. Measure the voltage, then turn off the switch and measure again. If the voltage drops, they are not being charged.
Both these tests rely on a fully charged battery being in the 12.5 volt range, while a battery being charged is in the 13.5 volt range. The actual numbers aren't as important as noting that while charging the voltage will be a volt or more higher.