[AT] Grounding

[charlie hill]

Joe,  as an alternative, drill a hole in the chassis near the rear of the 
truck or use an existing hole.
Grind the paint off the metal around the hole.  Coat the hole with 
dielectric grease, put a bolt (3/8" or so) through the hole
tighten the nut tight on it.  Then put a ground connector over the bolt end 
and add another nut.  Run your trailer
ground wire to that connector.   Your batteries are probably grounded to the 
chassis.   If they are you'll have a good
solid chassis ground to your trailer brakes.  If the batteries are grounded 
to the engine block, make sure you have a good
braided ground cable between the engine and the chassis.  If not add one and 
you'll be good.  After it's all hooked up and
working spray some paint over the ground connection and the other end of the 
bolt.

Charlie

-----Original Message----- 
From: Joe Hazewinkel
Sent: Thursday, October 23, 2014 10:07 AM
To: Antique tractor email discussion group
Subject: Re: [AT] Grounding

Greg, mine does have the seven pin connector.  My truck is a diesel with two 
batteries, do you think it matters which battery I hook the ground to?

I figured Ford would ground to the battery, but no such luck. I'm going to 
have to look up a wiring diagram on-line and see if I can find anything.

Enjoy, Joe

Sent via mobile device

On Oct 23, 2014, at 9:54 AM, Easley, Greg <EasleyG at health.missouri.edu> 
wrote:

#10 stranded copper wire all the way back to the truck battery is a good 
solution.
Replacing the 6-pin round connectors with the 7-pin RV type helps too.


-----Original Message-----
From: at-bounces at lists.antique-tractor.com 
[mailto:at-bounces at lists.antique-tractor.com] On Behalf Of Henry Miller
Sent: Wednesday, October 22, 2014 9:46 PM
To: Antique tractor email discussion group; jahaze at aol.com
Subject: Re: [AT] Grounding

It shouldn't harm anything, and might fix some other unexplained problem as 
well.

Trailers brakes take a lot of power, if you tested with just a voltmeter, 
then I'd worry that the power line might not be able to supply full voltage 
under load.

> On October 22, 2014 7:57:37 PM CDT, jahaze at aol.com wrote:
> To follow up on my trailer brake problem, I have been able to determine
> that I have plenty of voltage to the brake prong on the plug when I
> ground it to the truck, and a drop in voltage when I ground it to the
> ground prong.  My guess is that I have a weak ground connection on the
> truck.
>
> I tried to chase the ground wire through the truck wiring harness, but
> never did figure out where it was connected. What I'm thinking about
> doing is putting a jumper from the plug ground wire to the frame in the
> back of the truck to make a better connection.
>
> Is there any reason this won't work? Or does the ground wire have to be
> connected to another part of the truck?
>
> Enjoy, Joe
>
> Sent from my iPad
> _______________________________________________
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--
Sent from my Android device with K-9 Mail. Please excuse my brevity.
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