AIR SYSTEM WARNING! Daily Periodically If the supply and service tanks are not drained at the recommended frequency, water could enter the air lines and valves. This could cause corrosion or blockage, which could compromise the brake system safety and potentially cause an ac- cident involving death or personal injury. Drain moisture from the supply and service air tanks. Clean filter screens ahead of the valves by removing the screens and soaking them in solvent. Blow them dry with pressurized air before reinstalling them. Operate air devices to circulate lubricants within the unit. 5 (03/17) Y53-6077-1B1 5-59