</font><font color="blue" class="small">( I am fixing to put a FEL on my 1500 which is 2 WD, please explain the safety and operational reasons of not putting them on a 2 WD tractor? )</font>
First the safety reason. A tractor this small is extremely light weight for a tractor. You need plenty of counter weight on the rear when using a loader. If you are going down hill and apply the brakes you run the risk of not stopping or not stopping as well. As you know a tractor has brakes ONLY on the back wheels. Wehn you have 4 wheel drive and it is engaged, then your rear wheels are connected to the front and therefore you have more breaking ability.
Operational Reasons: 4 wheel drive just plain works better than 2 wheel drive. I know that there have been thousands of 2 wheel drive tractors with loaders. When your tractor only weighs 1500 to 2000 pounds you need every bit of help you can get. Big 2 wheel drive ag tractors with loaders weigh thousands of pounds more than these little Yanmars and have much more HP. I have only sold 1 2 wheel drive tractor with a loader and it was a YM1500. I fully explained to the guy the limitations of the tractor, but he was on a budget and was not planning on doing aggresive digging with his. If I forget to engage the 4 wheel drive on my 3000 pound, 32hp John Deere when using the loader, I can tell the difference.
Can you put a loader on a 2WD? Yes
Will it work? Yes
Will it work as well as a 4WD? Absolutely not