What size casters are you using? The biggest mistake I made building mine was using too small casters. They don't roll or swivel very well. My Backhoe dolly has either 4" or 5" super duty casters and I can literally push it around with a finger. Some day I'll fix my other dollies so they work as well.
The dollie wheels are 4 inch.
Here is my second attempt at a FEL Dollie. This is Part 1.
I haven't figured out part 2 yet.
It consists of a 4 by 4, 1/4 inch thick plate with a 1/2 by 1/2 square stock providing separation between the plate and the wheels to allow for a friction fit on the bucket.
I just don't understand the need for a dolly after thinking about it. You position the loader where you want it to be and take it off. When you need it, you put it back on in the same position you took it off. It hasn't gone anywhere and it doesn't need any adjusting, you just slowly drive into it. Ya'll must have some serious time on your hands to be making a dolly for a loader.....Now the 3PT implements I can fully understand!
Any ideas on making a dolly for a PHD? Extremely difficult to get on/off, even with help. It heavy, bulky, and sharp! I've got two bruised fingers and a cut on my leg to show for it... /w3tcompact/icons/frown.gif