Paccar Peterbilt 320, Operator'S Manual

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PART 8: MAINTENANCE AND SERVICE Interior
cure, wait about ninety days after the date of manufacture
before waxing. Don’t wax in the hot sun. Don’t friction burn
the paint with a buf
fi ng machine.
Aluminum and Chrome Surfaces
• Clean aluminum wheels and bumpers with warm wa-
ter.
• Tar remover will get rid of heavy deposits of road grime.
• To prevent spotting, wipe aluminum surfaces dry after
washing.
• Under corrosive conditions, such as driving on salted
roads, clean aluminum parts with steam or high pres-
sure water from a hose. A mild soap solution will help.
Rinse thoroughly.
• Chrome surfaces are best cleaned with fresh wa-
ter. Wipe dry to preserve their luster. A commercial
chrome cleaner will remove light rust. After cleaning,
wax
fl at surfaces and apply a thin coat of rust preven-
tive lubricant around bolts or other fasteners.
Stainless Steel
Follow this procedure to clean and restore the fi nish of
stainless steel components:
1. In a plastic pail mix 4 tsp of alum (a powder found
in grocery stores or drugstores), with 32 oz. of wa-
ter (warm water will dissolve alum faster, but cool will
work).
2. Apply the alum/water solution with a pad of steel wool
(0000 grade or fi ner). GENTLY wipe the component
lengthwise; no pressure is necessary.
3. It is the chemical reaction between the carbon steel of
the wool and the alum solution that cleans the stain-
less, not the scrubbing or abrasive action of applica-
tion.
4. You may also use any stainless cleaner recommended
for cleaning boat parts.
Interior
Cleaning Cab Interiors
Peterbilt interiors are built using a variety of different ma-
terials including fabrics, carpet, polyurethane, and painted
plastic surfaces. These cleaning procedures will ensure
that interior components remain in good condition for the
life of the vehicle.
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