SAFETY - Weekly Checks 1 optional engine air pre-cleaner, check the purge valve at the bottom of the hood mounted engine air precleaner for any obstructions. Make sure the purge valve will open and close as needed to purge dirt and water from the engine intake air. Automatic Transmission Fluid (where applicable) - Check level, after the engine has warmed up to operating temperature. Weekly Checks A driver should perform these checks of the vehicle weekly. NOTE These checks are in addition to, not in place of, Federal Motor Carrier Safety Regulations. These regulations may be purchased by writing to: Superin- tendent of Documents U.S.
Govern- ment Printing Office Bookstore 710 North Capitol Street N.W. Washington, DC 20402 or ContactCenter@gpo.gov. Chassis and Cab Exterior Battery - check battery and terminals. Wheel Cap Nuts - are they all in place and torqued properly - tighten if necessary. Wheels on page 264 Controls and Wiring - check for condition and adjustment Steering Components - check pitman arm, draglink, and power steering hoses, etc., for loose, broken, or missing parts. Cab Air Conditioner Fresh Air Filter - check for condition and cleanliness.
Engine Belts Hoses Clamps Radiator Air Cleaner Aftertreatments System Components Exhaust Pipes Engine Air Pre-cleaner (Optional) - For vocational vehicles with 38 Y53-6047-2HEN (03/18)