. SAFETY PRECAUTIONS FOR MAINTENANCE 2 - 29 STOP ENGINE BEFORE CARRYING OUT INSPECTION AND MAINTENANCE Stop the machine on firm, le vel ground. Select a place where there is no hazard of landslides , or of flooding if th e land is lo Lower the dump body, set du mp lever (1 ) to the HOLD position, lock with safety lock knob (2 ), then stop the engine. parki ARKIN position put blocks (3) under the tires to preven t the machine from moving.