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Ensure that reverse signal alarms are functioning. • Check the brakes of the truck/carrier,especially if the terrain along the route of travel is rough or sloped. • Discharge all passengers before moving on rough or steep terrain. Engage the front axle (on 4x4, 6x6, etc, vehicles) before traversing rough or steep terrain. Driving drill rigs along the sides of hills should be avoided; however, if side-hill travel becomes necessary, the operator must conservatively evaluate the ability of the rig to remain upright while on the hill. Rigs shall be equipped with seatbelts and rollover protective structures (ROPS). The possibility that the presence of drilling tools on the rig may reduce the ability of the rig to remain upright by raising the center of mass of the rig must be considered. �- Logs, ditches, road curbs, and other long horizontal obstacles should be normally �. approached and driven over squarely, not at an angle. When close lateral or overhead clearance is encountered, the driver of the rig should be guided by another person on the ground. Loads on the drill rig and truck must be tied down while the truck is moving, and the mast must be in the fully lowered position. After the rig has been positioned to begin drilling, all brakes and/or locks must be set before drilling begins. If the rig is positioned on a steep grade and leveling of the ground is impossible or impractical , the wheel of the transport vehicle should be blocked and other means of preventing the rig from moving or topping over employed. 509.5 Buried and Overhead Utilities The location of overhead and buried utility lines must be determined before drilling begins, and their locations must be noted on all boring plans and assignment sheets.