https://www.truck-manuals.net/mack/ 228 MAINTENANCE AND LUBRICATION Cab and Hood • Soften the dirt on your cab with plenty of water and rinse. • Clean truck with a soft sponge/brush starting at the roof and working downward using slight pressure. • Use mild detergent. Never use strong soaps or chemical detergents. Any commercially available cleaner designed specifically for automotive finishes may be used for cleaning the cab and hood surfaces. The 3M company and Mequiar’s® have a complete line of automotive cleaning products available that are approved for use on MACK vehicles. • Rinse the sponge or brush often to keep it clean. • If possible, clean wheels and dirtier areas with a separate sponge/brush. This will help avoid scratching body paint with grit from other areas.
• Rinse truck thoroughly with water and wipe dry with a soft clean chamois or all cotton towels to avoid surface scratches and water spotting.
CAUTION Do not clean the underside of the fenders, cab, chassis, etc. without protecting your hands and arms. You may injure yourself on sharp-edged parts.
Chassis • Wash away excess dirt and grime with water from a hose. • Use a mild detergent/soap and a soft brush to remove road grime and salts that can collect on the frame. • Rinse thoroughly with a hose. Note: Cleaning of your chassis on a regular basis will help deter accelerated corrosion and rust on the frame and components. Chemicals used for ice and snow removal and dust control can collect on the frame. If these are not removed in a timely manner, accelerated corrosion can occur on fuel lines, frame, and other components even though they have corrosion protection.