Logan CONTRACTOR, Руководство пользователя

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The recommended tire inflation pressure that vehicle manufacturers provide reflects the proper psi
when a tire is cold. The term cold does not relate to the outside temperature. Rather, a cold tire is
one that has not been driven on for at least three hours. When you drive, your tires get warmer,
causing the air pressure within them to increase. Therefore, to get an accurate tire pressure reading,
you must measure tire pressure when the tires are cold or compensate for the extra pressure in
warm tires.
1.5.4 Steps for Maintaining Proper Tire Pressure
Step 1: Locate the recommended tire pressure on the vehicle’s tire information placard,
certification label, or in the owner’s manual.
Step 2: Record the tire pressure of all tires.
Step 3: If the tire pressure is too high in any of the tires, slowly release air by gently pressing on
the tire valve stem with the edge of your tire gauge until you get to the correct pressure.
Step 4: If the tire pressure is too low, note the difference between the measured tire pressure and
the correct tire pressure. These “missing” pounds of pressure are what you will need to
add.
Step 5: At a service station, add the missing pounds of air pressure to each tire that is
underinflated.
Step 6: Check all the tires to make sure they have the same air pressure (except in cases in which
the front and rear tires are supposed to have different amounts of pressure).
If you have been driving your vehicle and think that a tire is underinflated, fill it to the recommended
cold inflation pressure indicated on your vehicle’s tire information placard or certification label. While
your tire may still be slightly underinflated due to the extra pounds of pressure in the warm tire, it is
safer to drive with air pressure that is slightly lower than the vehicle manufacturer’s recommended
cold inflation pressure than to drive with a significantly under inflated tire. Since this is a temporary
fix, don’t forget to recheck and adjust the tire’s pressure when you can obtain a cold reading.
1.5.5 Tire Size
To maintain tire safety, purchase new tires that are the same size as the vehicle’s original tires or
another size recommended by the manufacturer. Look at the tire information placard, the owner’s
manual, or the sidewall of the tire you are replacing to find this information. If you have any doubt
about the correct size to choose, consult with the tire dealer.
1.5.6 Tire Tread
The tire tread provides the gripping action and traction that prevent your vehicle from slipping or
sliding, especially when the road is wet or icy. In general, tires are not safe and should be replaced
when the tread is worn down to 1/16 of an inch. Tires have built-in treadwear indicators that let you
know when it is time to replace your tires. These indicators are raised sections spaced intermittently
in the bottom of the tread grooves. When they appear “even” with the outside of the tread, it is
time to replace your tires. Another method for checking tread depth is to place a penny in the tread
with Lincoln’s head upside down and facing you. If you can see the top of Lincoln’s head, you are
ready for new tires.
1.5.7 Tire Balance and Wheel Alignment
To avoid vibration or shaking of the vehicle when a tire rotates, the tire must be properly balanced.
This balance is achieved by positioning weights on the wheel to counterbalance heavy spots on
the wheel-and-tire assembly. A wheel alignment adjusts the angles of the wheels so that they are
positioned correctly relative to the vehicle’s frame. This adjustment maximizes the life of your tires.
These adjustments require special equipment and should be performed by a qualified technician.
1.5.8 Tire Repair
The proper repair of a punctured tire requires a plug for the hole and a patch for the area inside the
Tire Safety
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