Skip to Videos All | Operational Tips | Safety Tips | Revolution 180 | Revolution Swinga | Revolution SS | Mounting & Setup | Model comparison | Auger & Rock Spike | Hydraulic Feet | Remote Control | Telescopic Mast | Hammer & Post Cap | Machine Overview | Telescopic Mast, Safety Tips, • 8/17/26 The Mast Safety Pin and Travelling Hole on a Revolution Post Driver Which hole the safety pin goes in when you're on the road, and why that one keeps the weight where you want it on the tractor.