Reply
 
Thread Tools Display Modes
 
Old 04-16-2015, 01:59 PM   #1
New Member
 
Join Date: Dec 2014
Posts: 3
Battery Disconnect Switches?

Hello fellow skoolies!

I am trying to determine if my skoolie has a battery disconnect switch. She's a 2000 Blue Bird mini bus. I've read of others having such a switch but I'm not exactly sure where it would be located. There isn't a switch located in the compartment where the batteries are so I figure there isn't one, but it would be good to know for sure!

We are in the process of disconnecting the wires to the speakers and possibly the emergency exits and emergency hatch due to the risk of them draining the battery, and they're just rather annoying. But I am just a little worried about cutting wires while the battery is connected. I know it is very unlikely to get shocked and whatnot but after losing a family member to being electrocuted, I'd rather just play it safe. So, it would be nice to locate the switch (if I have one) instead of having to disconnect the actual batteries!

Any advice would be most appreciated!
destinysternod is offline   Reply With Quote
Old 04-16-2015, 02:10 PM   #2
Bus Geek
 
Join Date: Aug 2011
Location: Stony Plain Alberta Canada
Posts: 2,939
Year: 1992
Coachwork: Bluebird
Chassis: TC2000 FE
Engine: 190hp 5.9 Cummins
Rated Cap: 72
Follow the battery cables.

If your bus has a second battery underneath, it may not have a disconnect.
Many of them POS short one ton van buses here don't have a disconnect.

Nat
__________________
"Don't argue with stupid people. They will just drag you down to their level, and beat you up with experience."

Patently waiting for the apocalypses to level the playing field in this physiological game of life commonly known as Civilization
nat_ster is offline   Reply With Quote
Old 04-16-2015, 03:40 PM   #3
New Member
 
Join Date: Dec 2014
Posts: 3
Thanks natster! I'm positive now that we indeed do not have one! We ended up just disconnecting everything. I was going to just disconnect the negative end but after having a spark from the wheelchair lift thingy we decided to disconnect everything.

Now I'm trying to figure out the whole wheelchair lift thing that's by the batteries. The previous owner removed the actual lift but something is still being connected to the batteries. Here's where it connects to the batteries.
IMG_8492.jpg
IMG_8496.jpg

I followed the wire the best I could from the batteries, and found that it led to either here:
IMG_8497.jpg

or here?
IMG_8499.jpg

I am pretty sure that it's the first one, as it's in the same casing as the wire I was following before I lost sight of it above the gas tank. I know I am not the smartest when it comes to electrical, as my gpa proves after a year of physics, BUT I don't understand why it would lead to here? It looks like it's just a ground but that makes no sense as it should have been what was powering the previous wheelchair lift.

Does anyone have any experience/knowledge/advice???
destinysternod is offline   Reply With Quote
Old 04-16-2015, 03:45 PM   #4
Bus Geek
 
Join Date: Aug 2011
Location: Stony Plain Alberta Canada
Posts: 2,939
Year: 1992
Coachwork: Bluebird
Chassis: TC2000 FE
Engine: 190hp 5.9 Cummins
Rated Cap: 72
The first pic will be the ground wire.

The second pic is a hose going into a tank. Looks like a air hose.

Nat
__________________
"Don't argue with stupid people. They will just drag you down to their level, and beat you up with experience."

Patently waiting for the apocalypses to level the playing field in this physiological game of life commonly known as Civilization
nat_ster is offline   Reply With Quote
Old 04-16-2015, 05:59 PM   #5
Bus Crazy
 
somewhereinusa's Avatar
 
Join Date: Nov 2010
Location: Andrews,Indiana
Posts: 1,636
Year: 1991
Coachwork: Bluebird
Chassis: AARE
Engine: 3116 Cat 250hp
Rated Cap: Her, me and Molly
The top two pictures are a circuit breaker, what Nat said on the third and forth.
somewhereinusa is offline   Reply With Quote
Old 04-17-2015, 11:43 AM   #6
New Member
 
Join Date: Dec 2014
Posts: 3
Thanks nat and somewhereinusa!

I'm also just wondering if I can disconnect that circuit breaker and remove it since the wheelchair lift has already been removed? I wasn't sure when I saw that what it led to was just a ground.
destinysternod is offline   Reply With Quote
Old 04-17-2015, 02:26 PM   #7
Bus Crazy
 
Join Date: Jul 2011
Location: Winlcok, WA
Posts: 1,607
The red cable is a hot lead either coming directly from the batteries or going directly to the lift.

The lift motor, for all practiacl purposes, is no different from an electric starter. It runs the pump for the lift hydraulics.

Because it is such a power hog it needs a good power source. On most newer buses the lift has an on/off switch on the dash that operates a relay to send power to the lift. That way very little power has to go through the switch up front.

As far as battery disconnect switches go, if it had one it would be near to where the batteries are located. Not all buses came from the factory with them, regardless of the size of the bus. Be aware that not everything is shut off on some of the newer buses. Some of the computers need to keep power on in order to remember what they are supposed to be doing.

Some buses instead of a master disconnect have a relay that powers up the accessory panel so that things like heaters and lifts will only work when the ignition is in the run position.
cowlitzcoach is offline   Reply With Quote
Old 04-17-2015, 03:20 PM   #8
Bus Crazy
 
somewhereinusa's Avatar
 
Join Date: Nov 2010
Location: Andrews,Indiana
Posts: 1,636
Year: 1991
Coachwork: Bluebird
Chassis: AARE
Engine: 3116 Cat 250hp
Rated Cap: Her, me and Molly
You can take it out, just be sure you get that red wire that is hooked to the circuit breaker unhooked from where ever it is hooked to a battery.
somewhereinusa is offline   Reply With Quote
Reply

Tags
battery, battery disconnect, blue bird, electrical, wires

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Virginia Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 12:37 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.