A SERVICE OF

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Preventive Maintenance Cab Maintenance
Medium Duty
(R10/06) Y53-6008 – 197 –
Remove soap with a clean, damp rag.
If a stronger cleaning solution is required, use a foam-
type carpet shampoo.
Vinyl and Fabric Upholstery
CAUTION: To avoid possible damage to the
upholstery, do not use chemical
solvents or
strong detergents on these components.
Use a clean, lint-free cloth.
Clean with the cloth dampened with a mild soap-and-
water solution.
Remove soap with a clean, damp rag.
For difficult stains, use a commercial fabric or vinyl
cleaner.
Safety Restraint System — Inspection
The seat belt system, including webbing, buckles, latches,
and mounting hardware, endures heavy use in medium-duty
vehicles—much more than seat belt systems in passenger
cars. All users should be aware of the factors contributing to
this heavy use and reduced belt life.
WARNING! Failure to properly inspect and main-
tain restraint systems can lead to serious injury
or loss of life. Without periodic inspection and
maintenance to detect unsafe conditions, seat
restraint components can wear out or not pro-
tect you in an accident.
Factors contributing to reduced seat belt life:
High mileage—heavy trucks often accumulate mileage
in excess of 500,000 total miles (800,000 km) during the
vehicle lifetime. This is much greater than a typical pas-
senger car, which frequently will not exceed 125,000
total miles (200,000 km).
Seat and cab movement—in trucks, there is almost con-
stant movement of the belt due to ride characteristics
and seat design. The constant movement of the belt