When the bucket is loaded, keep it as low as possible. For lifting anything heavy with the loader, you need loaded rear tires, or a counterweight on the 3pt (or both). Go up and down hills, not across them....tractor roll overs are the most common form of death involving tractors (i.e. wear your seatbelt, and keep the ROPS in the raised position). Take your time. Of all the bolts and nuts on the tractor, check the wheel lugs, and loader attaching bolts regularly until you're sure they've settled in, and aren't loosening up periodically.