Voltage, well regulated, please...

[Joe Cannarozzi]

Better wait for Truk on that one Dan.

Dan the cord for our block heater goes up to a junction box on the upper firewall above the engine. That junction box also has 2 outlets on it.

It should be staring you right in the face when you open the engine doors or you ain't got it.

[truk4u]

Dan,

Sorry for the delay, you sent me an e-mail while I was traveling and it was saved on my laptop. I'll get the drawing scanned and show you how to connect the Quest. It's a great charger and I think Paul Horner will verify that. Hopefully I can get it done tonight.

[phorner]

Dan,

Once you get the schematic from Truk, it will be a snap. Since he guided me through my installation, everything has been fine. It's a really great battery charger and I'm sure you will be happy with it.

Happy wiring......

[Jon Wehrenberg]

Joe,

Be careful assuming all coaches are alike. Darl has the coach battery wiring diagram for his coach on the door. Yours and his may be exactly alike, but as I found out Prevost has not been shy about making revisions.

[truk4u]

OK Dan, here ya go... But first a disclaimer.... This has worked for both Paul and myself based on the Prevost chassis battery setup and both of ours are 99 chassis. If your not real comfortable with messing with the electrical stuff, please get some help from someone with experience. This should work on any of the battery configurations, but please proceed with caution. Also, I would remove the equalizer ground wire at the equalizer in case someone makes a boo boo. There are two drawings, the 1st one is my cable setup and the 2nd is the Quest hook up. If I drew it on one sheet, all the wires may be confusing.

Series_1.jpg
My 2000 CC, 99 Chassis cable set-up

Quest_1.jpg
How I hooked up the Quest Charger

Let me know if you have any questions and don't drop a wrench on the batteries!

[truk4u]

Dan,

Forgot about the plug... My CC has a 110V plug in the passenger side engine compartment with a switch on the dash labeled "charger". It must have been an option at the time, so mine was real easy.

I did the same thing on my Marathon as Paul did using the block heater receptacle in the passenger side engine compartment. On his Liberty and my Marathon, that 110v plug was controlled by a circuit breaker inside. When you wanted the 110v block heater, you plug in the heater cord located up near the oil reservoir and then throw the breaker. Paul figured he would never use the block heater, so he just used that source for power. When he wants to turn on his charger, he just throws the breaker and he's good to go. You can leave in on, the charger has a float cycle. Be sure to turn it off when unplugging, the inverters don't seem to like the charger and on my Marathon, the inside lights would lightly pulsate when inverting with the charger on.

Hope this helps...

[MangoMike]

questA.jpg


I have the same Guest charger on the '97 Liberty and this is how I wired it.

Based on your battery cableing configuration you just have to find the primary postive terminal and the primary Negative directly to the ground.

[garyde]

Tom and Jon, I checked this out last night and, with your new suggestions,again this morning. The maximum reading I got was 12.8V. The breakers are OK but I only get the same 12.8V across them. Same with the master and from battery to negative on jumper lug. The main check that I think I should have been making (and stupidly didn't check earlier)is simply to see is I am getting 28V out of my battery bank. This is also 12.8V. There is an equalizer that has a 28V lug, a -lug, and a 12V lug. 12V measures 12.8 but the 28V yields a .59. One cable from the equalizer was placed on a negative battery post. When changed to a positive battery post the equalizer read properly except no 28V. I still do not have 28V anywhere in the engine/battery compartment, including the starter. Tom, I think you are on to something when you wrote about the battery cable issues. When this problem 1st occurred the road service company sent out a guy with a 1976 Chev 1/2 ton PU with a battery jumper connection hanging out of the grill. I told him there was no way this was going to get the bus started and I had ordered a commercial truck service truck. He insisted that he could get me started. When it didn't work he called back to his boss who had him remove the battery cables and charge each battery separately. Of course this didn't work either. The second company, with a similar setup but with 4 12V batteries was unable to jump start with the batteries so he jumped it from the starter.

Other than the cable I described above that was apparently mistakenly placed on a - post there is nothing obviously wrong with the cables. Of course there has to be if the batteries are fully charged and connected properly and only check out a 12.8V.

As it stands right now I may not be able to get back on this until Saturday. My whole family, wife, kids, and grandkids are leaving about 4:30am tomorrow for 2 weeks in Puerto Vallarta. Saying everything is in disarray is an understatement!

I am going to get into my Prevost schematics and thoroughly check out the cable configuration on the batteries. I suspect everyone that has helped me on this has wondered if I did something wrong. At this point I think I amy have overlooked the obvious. More to come. Thanks everyone! I'll keep you updated.

You should have a sticker on the inside of the bay door to your chasis batteries showing the wiring diagram for your chasis batteries.

[truk4u]

Mango,

Is that why your batteries were dead when I was at Parliament?

[Jon Wehrenberg]

Never saw that aerial attack coming.........