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+--- Thread: 91sp Onan genset and Battery Chargers (/showthread.php?tid=3337)
91sp Onan genset and Battery Chargers - Gregory OConnor - 09-04-2006 03:44
Forum member CurtS and I visited another member Tiger to help fix his
bus. Curt, a very organized person prompted Tiger to make a list of
issues that needed attention. We divided up the list and while I cut
the grass; Washed the dog, Porsche and windows, Curt worked on the
bus. Tiger, a renowned area chef, made us breakfast. Shortly after
finishing my Chereoos I got to work helping Curt fix the tail lights
on the bus. Tiger, a renowned area chef made parts runs to Nappa
Auto parts for supplies like a 1/2 inch wrench and at noon he went to
Burger King to pick us up some lunch.
We have some questions about repair items and would appreciate any
input:::
ONAN GENSET
For some reason the onan genset on Tigers bus shuts down the fuel open
selonoid just after the engine starts. Tiger had the selonoid replaced
3 times and claims the same symptom reappears each failure.
I was able to start the genset by holding the shut off open and
quickly
removing the + terminal once it started. If I first removed the
terminal and held the fuel open it would not even crank over. We
allowed it to generate ac/110 but 12v never reappeared at the fuel
shutoff to keep it open. (I did not try to reset the fault switch
after 110 appears to see if 12 V keeps the fuel open)
BATTERY CHARGERS
I need info on hooking up retrofit progressive dynamic chargers 60
amp and removing the old OEM chargers.
One new charger is hooked up directly to the output + and - as the
OEM charger which was removed. the output + routs up to a relay and
then down to a shunt on the wall of the forward charger compartment.
with the charger plugged in the output at the charger was 14 V and
the new batteries read 2.3 V. It seems nothing was getting past the
relay??. we ran a jumper cable from the output+ then to the house
batteries+. with this hookup we were able to fully charge the
batteries at both banks.
??What is the relay for and is it necessary to use with a new PD
charger system? can I bypass it without damaging some component it
protects?
?? why was I able to charge the cat start batteries with the charger
hooked up to the House battery bank?? I thought the two banks were
independent and that is why a momentary switch was necessary to tie
them together when extra amps were needed to make a start.
Gregory O'Connor
94ptRomolandCa