How to Operate a Wheel Loader / Front End Loader – 2020 Tutorial, entry level wheel loader controls overview. We’ve taken feedback from our viewers on our previous Wheel Loader 101 videos to bring you new and improved training. We will go over the basics of controls, driving, digging and parking in our Komatsu WA270 Wheel Loader. Have a question or comment? Leave one below! Komatsu Wheel Loader WA270 info: