Harley Rake Questions

[iowa]

I bought a Harley rake last summer (S-6 model on ebay - Cheap!) and have used it a handful of times. I've noticed that in one direction the drum spins slower and doesn't take much to stop it from rotating, either by using it in hard ground, etc., but in the other direction its fine. Is that due to the rake itself or my skid loaders hydraulics? I have a New Holland L185.

Also - The bearings are shot on the side opposite of the chain housing. It looks like I may need to take the drum off to replace the bearings? Any help on that would be great!

Thanks