My B3300SU is equipped with a LA504 loader and 60" bucket. As background, when I push into gravel or dirt at the bottom of pile and then attempt to pick up while adding forward pressure going into the pile it seems like the loader brakes out-just outright failing to lift. However, when I slightly backup or scoop upwards while entering the pile-the tractor has no problem lifting the load. Point is, I thought driving into a pile, attempting to lift the machine would apply full pressure feeling it in the seat of your pants constantly (may not lift, but still applying full pressure), but my loaders appears to give full attempt and seems to stop applying any pressure until I back, so just curious if other have experienced a similar event and very likely normal-just interested in comments.