Specifications

Preventive Maintenance Cab Maintenance
Medium Duty
(R05/09) Y53-6008A – 223 –
CAB MAINTENANCE
Exterior Maintenance
Painted Surfaces
Wash painted surfaces frequently to remove grime and caus-
tic deposits which may stain the finish. See
“Cleaning, Pro-
tection and Weather–Stripping” on page 224
.
Chrome and Aluminum Surfaces
To prevent rust, keep chromed parts clean and protected with
wax at all times, especially in winter conditions where the
roads are salted.
• If necessary, use a commercial chrome cleaner to
remove light rust.
• Chrome surfaces are best cleaned with fresh water.
Wipe dry to preserve their luster. A commercial chrome
cleaner will remove light rust. After cleaning, wax flat sur-
faces and apply a thin coat of rust preventive lubricant
around bolts or other fasteners.
• Clean aluminum wheels and bumpers with warm water.
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 pressure
water from a hose. A mild soap solution will help. Rinse
thoroughly.
Stainless Steel
Even high quality stainless steel parts can rust under pro-
longed exposure to salt water, especially when the salt-laden
moisture is held against the metal surface by road grime. It is,
therefore, important to frequently clean salty moisture and
grime from stainless steel surfaces.
• If surface rust is encountered, wash the surface and use
a commercial polishing compound to clean off the rust,
followed by a coating of wax (do not apply wax to hot
parts, such as exhaust pipes).
• Never use steel wool when cleaning stainless steel
because minute particles of the steel wool can embed in
the surface of the stainless steel and cause rust staining.