operators_manual

Matching Tires
Be sure to buy matched tires for your
vehicle, especially on the rear axles.
Mismatched tires can cause stress
between axles and cause the temperature
of your axle lubricant to get too hot.
Matched tires will help your driveline last
longer and will give you better tire mileage.
WARNING!
Do not mismatch tires, it can be dangerous.
Never mix tires of different design such as
steel belted radials and bias ply tires, etc.
Mixing tire types and sizes will adversely af-
fect the road holding ability of both types of
tires and can lead to loss of vehicle control
and causing death or personal injury.
WARNING!
Do not install regrooved or reinforcement re-
paired tires on steering axles. They could
fail unexpectedly and cause you to lose con-
trol of your vehicle resulting in an accident
causing death or personal injury.
Replacing Tires
Front: Replace front tires when less than
4/32 in. of tread remains. Check at three
places equally spaced around the tire.
Drive Axles or Trailers: Replace tires on
drive axles or trailers when less than 2/32
in. of tread depth remains in any major
groove. Check at three places equally
spaced around the tire.
WARNING!
Do not replace original equipment tires with
load ratings less than the original tires. Do-
ing so could lead to unintentional overload-
ing of the tire, which could cause a failure
resulting in loss of vehicle control and an ac-
cident. Failure to comply may result in
death, personal injury, equipment or proper-
ty damage.
NOTE
To prolong your tires’ life and make them
safer, have their radial and lateral run-out
checked at your dealer. And of course you
should have your tires balanced anytime
you change a tire.
Tire Chains
If you need tire chains, install them on both
sides of each driving axle.
CAUTION
Chains on the tires of only one tandem axle
can damage the driveline U-joints and the
interaxle differential. Repairs could be costly
and time-consuming. Failure to comply may
result in equipment damage.
Speed Restricted Tires
WARNING!
This vehicle may be equipped with speed
restricted tires. Check each tire’s sidewall
for maximum rated speed. The vehicle
should not be operated at sustained speed
in excess of maximum rated speed. Failure
to comply with these speed restrictions
could cause sudden tire failure which can
result in death, personal injury or property
damage.
Greenhouse Gas Certified Tires
Verify if your vehicle is equipped with
Greenhouse Gas certified tires by checking
the Vehicle Emission Control label on the
driver's side door frame. If these tires were
installed at the factory, Lower Rolling
MAINTENANCE - Tires
Y53-6096-1A1 (01/17) 209
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