30 Operator’s Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Climbing Up and Down DO NOT climb up on or jump off from the engine or stand on components that cannot support your weight. Use an adequate ladder or scaffolding, suitably situated. DO NOT use top of engine or cowling ledge as foothold when reaching on top of cab. Clean steps, handholds and areas of the vehicle on which you will be working or are around. Refer to the Operators Manual for proper entry and exit procedures. Always use a three-point stance (two hands and one foot or one hand and two feet) whenever climbing up or down . Engine Damage Prevention Before Starting the Engine Inspect engine for potential hazards.
Make sure all protective guards and covers are properly installed if an engine needs to be started to make adjustments or checks. To help prevent an accident by moving parts, work carefully around them. DO NOT disable or bypass automatic alarm/shutoff circuits. They are provided to prevent personal injury and engine damage. Only properly trained and authorized MACK Service Technicians may attempt repairs on this vehicle. DANGER Always have three limbs (one foot and two hands or two feet and one hand) in contact with the vehicle at all times when entering or exiting the cab or the area behind the cab. Failure to follow this warning can result in serious personal injury or death.
DANGER Before working on a vehicle, set the parking brakes, place the transmission in neutral and chock the wheels. Failure to do so can result in unexpected vehicle movement and can cause serious personal injury or death.