Emergency shut down mod

[Ralph L. Fullenwider]

Good morning everyone:

There, recently, has been a situation that needs to be addressed with a
modification added to the '88 through 90's Birds.

I am working on drawing a schematic which adds a Bosh relay and a switch
located in an accessory slot on the dash, for the engine emergency shut
down of the engine.

Problem: A relay, # 34 welded the contacts and the Coach could not be shut
down with either the dash or rear key switch and there is not a manual
cable pull such as in the older Bird's.

Solution: Adding a relay to the fuel shut off valve circuit, that is
controlled by a switch on the dash. The relay coil will be on the switch
and the wire going to the fuel shut off valve on the engine will be on the
normally closed side of the relay, thus if the added relay ever fails then
it will fail closed keeping the power on the fuel shut off valve. By
switching the relay, the circuit to the fuel shut off valve is opened up
and you have engine shut down.

I will try to get this modification added to the files section this
weekend, with the correct wire numbers/colors and connections for those who
might be interested.

This circuit will be added to Ken and Patti Marsh's "ToWanda" Which is an
'89PTWB.

So far as I know, this is a first with this "no shut down" problem. It,
seemingly has always been, "I can't get it to start" problem.


Safe travels,

Ralph and Charolette Fullenwider
Ralph's RV Solutions, Duncan, Oklahoma
http://home.swbell.net/rlf47/index.htm