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Dec 13, 2011 | 07:52 AM

#256

stRangerXLT

Senior User

Joined: Nov 2011

Posts: 163

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grumble, slurp of coffee

Dec 13, 2011 | 09:55 AM

#257

67 Olfthfl

Logistics Pro

Joined: Feb 2011

Posts: 4,841

Likes: 9

From: Stagecoach, NV.

Goodmorning all,

Have a terrific Tuesday!

The spirit of Christmas is sure making it's rounds this season. Thank you to everyone that's helping to make this happen.

Dec 13, 2011 | 02:47 PM

#258

bigrigfixer

The Pacifier

Joined: Jan 2003

Posts: 8,245

Likes: 7

From: Cloverdale, BC

Afternoon SoCal!

Dec 13, 2011 | 03:07 PM

#259

A/Ox4

9 ECHO 1

Joined: Aug 2009

Posts: 12,467

Likes: 58

From: Missouri

What should voltage be on our trucks? Is it the same for all motors? If not can you show me for the three big ones? (5.4, V10. 7.3)

Dec 13, 2011 | 03:08 PM

#260

bigrigfixer

The Pacifier

Joined: Jan 2003

Posts: 8,245

Likes: 7

From: Cloverdale, BC

should be all the same.

Dec 13, 2011 | 03:15 PM

#261

A/Ox4

9 ECHO 1

Joined: Aug 2009

Posts: 12,467

Likes: 58

From: Missouri

What voltage?

Dec 13, 2011 | 03:18 PM

#262

bigrigfixer

The Pacifier

Joined: Jan 2003

Posts: 8,245

Likes: 7

From: Cloverdale, BC

12 volts? Is that the answer you're looking for? 13.5 - 14.5 engine running?

Dec 13, 2011 | 03:33 PM

#263

bpounds

Hotshot

Joined: Aug 2006

Posts: 17,398

Likes: 317

From: Whittier, CA

Depends on when and where you measure it. A fully charged 12V battery should have a float voltage (after several hours at rest) of about 12.7 volts. And it doesn't matter what vehicle charged it. Charging voltage is constantly variable, but should be between 13.2 and 14.4.

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Dec 13, 2011 | 03:56 PM

#264

bigrigfixer

The Pacifier

Joined: Jan 2003

Posts: 8,245

Likes: 7

From: Cloverdale, BC

What Bill said.

Dec 13, 2011 | 04:16 PM

#265

bpounds

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Joined: Aug 2006

Posts: 17,398

Likes: 317

From: Whittier, CA

Quote:

Originally Posted by A/Ox4

...three big ones? (5.4, V10. 7.3)

I disagree with your premise that those are the "big ones"!

Seriously though, I think all Ford/Int'l light diesels use 12 volt starters. I know many OTR tractors are 24 volt. But what about F550, F650, etc? I have no idea. It is a good question.

Dec 13, 2011 | 04:27 PM

#266

A/Ox4

9 ECHO 1

Joined: Aug 2009

Posts: 12,467

Likes: 58

From: Missouri

The three big ones for the Super duties

F550 will run the same as F250-450 but 650 an 750 might be different idk.

Dec 13, 2011 | 04:29 PM

#267

bpounds

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Joined: Aug 2006

Posts: 17,398

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From: Whittier, CA

Yes, considering it might be a Cat or a Cummins in the larger F's.

Dec 13, 2011 | 04:34 PM

#268

bigrigfixer

The Pacifier

Joined: Jan 2003

Posts: 8,245

Likes: 7

From: Cloverdale, BC

Quote:

Originally Posted by bpounds

I know many OTR tractors are 24 volt.

Used to be fairly common, but not any more. Depending on the truck and how it was spec'd, they use either three or four 12 volt batteries in parallel.

Dec 13, 2011 | 04:53 PM

#269

bpounds

Hotshot

Joined: Aug 2006

Posts: 17,398

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From: Whittier, CA

Interesting. Is that true of off-road earth moving equipment as well?

Dec 13, 2011 | 05:22 PM

#270

bigrigfixer

The Pacifier

Joined: Jan 2003

Posts: 8,245

Likes: 7

From: Cloverdale, BC

Quote:

Originally Posted by bpounds

Interesting. Is that true of off-road earth moving equipment as well?

I have no idea. I'll have to ask a couple buddies. One works for a Cat dealer, the other worked for a Komatsu dealer.