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WILL MY TRUCK PULL THIS
Skip,
We use a single axle trailer, around here called a "low-boy" that is commonly used by paving companies to move their small rollers with (See picture below) to move our mini-ex around. They are almost always equipped with a 5,000 pound axle.
The same single axle trailer trait that is normally a hindrance to a small tow vehicle, that it acts as a pivot, is a boon for what you're doing. By adjusting the mini-ex fore & aft you can very precisely adjust the tongue weight.
For maximum traction you can put more weight on the rear drive tires by moving the unit forward towards the tongue.
Since we use a tractor to tow it around sites the same way often, this makes it really handy. Besides, a single axle doesn't rip up the ground when you turn it tight backing up like a tandem does.
Best of luck.
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WILL MY TRUCK PULL THIS
Thanks for that Murf
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WILL MY TRUCK PULL THIS
OK---I'm bak with questions---
My good buddy down the hill has a pretty new trailer. We awhile bak thought it would not haul my 3000# excavator---But I took a closer look ( with my glasses on)---Here's what it say's on the info plate--
GVWR 2900 lbs.
GAWR
REAR 3500 lbs.
It is is 6'X 10' single axle/ 5X15 rim
OK---I'm not sure what GVWR & GAWR means---but I'm thinkin that trailer will haul my 3000# excavator.
So what do ya think---will it do it?
Any replies appreciated
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WILL MY TRUCK PULL THIS
Put yer glasses back on and look for GVW (gross vehicle weight)---that is how much the empty trailer weighs. Now, subtract that number from the GVWR----that number is how much weight you can carry. BUT, LEGALLY---it is the tires that determine the weight if there is no tag to confirm GVW, etc. If the tires say they are rated at 3000 lb total and the trailer weighs 800 you can only carry 2200 lb.
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WILL MY TRUCK PULL THIS
Here is a photo of the info tag on the trailer. As I read it it states the trailer will carry 2900lbs. & the total weight of trailer & load is 3500lbs----So I'm thinkin it will haul my 3000lb excavator---Am I correct here---or am I reading this tag wrong?
Also on the tires is stamped 1850 lbs..
So besides control problems----what happens when a trailer is overloaded? Wheel bearing wear---tire wear---?
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WILL MY TRUCK PULL THIS
Skip,
GVWR (Gross Vehicle Weight Rating) is what the trailer is rated to carry. In other words the maximum the trailer should weigh fully loaded.
GAWR (Gross Axle Weight Rating) is what the axle is designed to carry.
In this case it appears they have reduced the GVWR by the empty (Tare) weight of the trailer so that you can't overload the axle.
You are correct though, the trailer can carry 2,900 pounds.
Note however I said "rated" to carry. These limits are artificially lowered to account for things like the shock load of potholes at highway speeds, etc., etc.
At barely over walking speeds on your driveway, the risk is almost non-existent and you can safely add 25% to maybe as much as 50% to that 2,900 pounds depending on the rest of the trailers construction.
Your ideas about premature wear are bang on, but again, at walking speed, not likely to occur ever.
Don't forget, there is also the issue of 'tongue weight', on a standard setup like that trailer, about 10-15% of the total weight of the trailer is on the tongue. So, if the excavator weighs 3,000 pounds, 300 of that is transferred to the tow vehicle so it only weighs 2,700 pounds to the trailer axle. In an earlier post I mentioned loading heavy to the front to increase tow vehicle traction, doing so you could easily put 25% on the tongue, then the excavator would only exert 2,250 pounds on the axle, the other 750 ponds would be on the back of the tow vehicle.
Best of luck.
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Murf----you explained that very, very well----
Thank you very much for taking the time to post that info---I realy do appreciate it. 
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WILL MY TRUCK PULL THIS
I would not give up. However, can't that machine go up that grade by itself. The main risk as I see it is the grade and the resulting tilt backward of the traier will shift some of the load off the hitch, so you might want to be heavy on the hitch. You need weight on driving axles on gravel or you spin.
Anyhow once I had a real big load behind a Chevy 1/2 ton up a long hill in hot weather and overheating was present. In order to get a very low range gear, I put it in 4WD low range and it worked.
As to trailers, my home made single axle trailer has an axle rating of 6,000#. There might be others out there like that.
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