Cab And Hood; Chassis - Mack Granite GU Series Operator's Handbook Manual

270 MAINTENANCE AND LUBRICATION
protective Carnuba-based wax is recommended after washing for longer term
protection from road salts and spotting.

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.