RAM 1500 2023, Руководство пользователя

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386 SERVICING AND MAINTENANCE
T
IRE
R
OTATION
R
ECOMMENDATIONS
Tires on the front and rear axles of vehicles operate at
different loads and perform different steering, driving, and
braking functions. For these reasons, they wear at
unequal rates.
These effects can be reduced by timely rotation of tires.
The benefits of rotation are especially worthwhile with
aggressive tread designs such as those on all season type
tires. Rotation will increase tread life, help to maintain
mud, snow and wet traction levels and contribute to a
smooth, quiet ride.
For the proper maintenance intervals
Ú
page 334. More
frequent rotation is permissible if desired. The reasons for
any rapid or unusual wear should be corrected prior to
rotation being performed.
The suggested rotation method is the “rearward cross”
shown in the following diagram. This rotation pattern does
not apply to some directional tires that must not be
reversed.
Tire Rotation (Rearward Cross)
DEPARTMENT OF TRANSPORTATION
UNIFORM TIRE QUALITY GRADES
The following tire grading categories
were established by the National
Highway Traffic Safety Administration.
The specific grade rating assigned by the
tire's manufacturer in each category is
shown on the sidewall of the tires on
your vehicle.
All passenger vehicle tires must conform
to Federal safety requirements in
addition to these grades.
T
READWEAR
The Treadwear grade is a comparative
rating, based on the wear rate of the tire
when tested under controlled conditions
on a specified government test course.
For example, a tire graded 150 would
wear one and one-half times as well on
the government course as a tire
graded 100.
CAUTION!
To avoid damage to your vehicle or tires, observe the
following precautions:

Because of restricted traction device clearance
between tires and other suspension components, it is
important that only traction devices in good condition
are used. Broken devices can cause serious damage.
Stop the vehicle immediately if noise occurs that could
indicate device breakage. Remove the damaged parts
of the device before further use.

Install device as tightly as possible and then retighten
after driving about ½ mile (0.8 km). Autosock traction
devices do not require retightening.

Do not exceed 30 mph (48 km/h).

Drive cautiously and avoid severe turns and large
bumps, especially with a loaded vehicle.

Do not drive for a prolonged period on dry pavement.
 Observe the traction device manufacturer’s instruc -
tions on the method of installation, operating speed,
and conditions for use. Always use the suggested oper -
ating speed of the device manufacturer’s if it is less
than 30 mph (48 km/h).

Do not use traction devices on a compact spare tire.
23_DT_OM_EN_USC_t.book Page 386