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Old 02-04-2015, 08:31 AM   #31
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I thought the trailer grounds itself through the hitch, therefore have never greased or seen the need to.
The grounding over time would not be reliable. Dirt, rust, movement in the 2 inch receiver would disrupt a good contact. The ground is at the electrical connection.



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Old 02-04-2015, 08:51 AM   #32
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Hmm,

Interresting inputs. I have to say, I've never had any grounding issues. I also don't buy into heat from friction having any effect.

Anthing I have ever had with lube on it and a trailer ball has up anywhere but the ball.

On a side note, when I changed tool boxes in the new truck I counted 6 drop hitches in my possesion. Do you think I am subconsciously worried about wearing them out?

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Old 02-04-2015, 08:52 AM   #33
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I thought the trailer grounds itself through the hitch, therefore have never greased or seen the need to.
All plugs from the 4 flat to the 7 round have a ground wire. I've seen a lot of trailers that don't have it connected and let it ground through the ball- typically on trailers like flatbeds, etc. with a 4 flat plug. But it is supposed to be grounded through the plug connection.
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Old 02-04-2015, 08:54 AM   #34
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I have always greased my hitch and heard it is a good idea. But I also heard you need to keep you ball clean. Lets say you grease your ball and unhook your trailer at a beach type campground. If you don't wipe down your ball and re grease it will probably be loaded with sand when you re-hook the trailer. Keep sand off your ball.
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Old 02-04-2015, 09:08 AM   #35
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I have been towing trailers for over 40 years and I put grease on what ever hitch I'm using at the time. Depending on the trailer I am pulling I have used 1/34 in. ball 2 in ball and 2 5/16 ball (Utility, boat, car, and travel trailers) . I would never ground through the ball. When I'm done towing I put the hitch away (I thought there is a law about leaving your hitch on the vehicle because of people getting hurt from walking into them). This way you do not have to worry about getting it dirty. You should wipe the grease of when done.
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Old 02-04-2015, 09:23 AM   #36
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I have been towing trailers for over 40 years and I put grease on what ever hitch I'm using at the time. Depending on the trailer I am pulling I have used 1/34 in. ball 2 in ball and 2 5/16 ball (Utility, boat, car, and travel trailers) . I would never ground through the ball. When I'm done towing I put the hitch away (I thought there is a law about leaving your hitch on the vehicle because of people getting hurt from walking into them). This way you do not have to worry about getting it dirty. You should wipe the grease of when done.
If you run into the ball on my truck you're too close to it and need to back off.
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Old 02-04-2015, 09:41 AM   #37
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If you run into the ball on my truck you're too close to it and need to back off.
Amen to that,also with the Tailgate down you would have to Really Try to bump into the hitch! Maybe they have a LAW about Tailgates also! Youroo!!
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Old 02-04-2015, 10:42 AM   #38
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The grounding over time would not be reliable. Dirt, rust, movement in the 2 inch receiver would disrupt a good contact. The ground is at the electrical connection.



The 7 Pole RV Electrical Plug
I would say that; the intended or preferred path to ground is the electrical connection, but those electrons will also use the path of least resistance and any other path they find including your body.

Disclaimer: Not an electrician and don't stay at Holiday Inn Express.
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Old 02-04-2015, 10:54 AM   #39
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Ok, the site team has done a cleanup on this one. Let's keep the posts on topic, guys. It's been a good and informative thread that will help many members.
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Old 02-04-2015, 10:59 AM   #40
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The question is too vague for anyone to answer correctly. IMO, this question is best left for your hitch/weight distribution/ball/coupler manufacturer or at the very least the installation/operation/maintenance manual for your particular product.

I have used a lot of different hitches over the years, because we formerly rented trailers. I know the Curt hitch manuals I have used say to lubricate the ball with a light coat of grease. At least, some Reese (Coquent Performance Products) hitches said to lubricate the ball but it was a small amount like a couple drops. I don't recall seeing anything about it in the Reese Dual cam, the Equal-I-zer or the E2 manuals but Reese and Progress MFG definitely both sell lube for the ball.

NEVER ever lubricate an Andersen hitch ball. That would remove your friction designed for anti-sway.

In any case, I wouldn't recommend guessing or asking the generic question on here without your actual product info.
I agree, what the are MFG instructions. I own a Anderson Ultimate 5th Wheel Connection. In the owners manual it reads: "never grease ball or coupler"
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