Operator`s manual

1213 1200.01

of wear of the tread.

Vehicle capacity weight

The rated cargo and luggage load plus 68 kilograms (150 lbs.) times the vehicle’s designated

seating capacity.

Vehicle maximum load on the tire

The load on an individual tire that is determined by distributing to each axle its share of the

maximum loaded vehicle weight and dividing by two.

Vehicle normal load on the tire

The load on an individual tire that is determined by distributing to each axle its share of the

curb weight, accessory weight, and normal occupant weight (distributed in accordance with

Table I of CRF 49 571.110) and dividing by 2.

Weather side

The surface area of the rim not covered by the inflated tire.

Wheel center member

In the case of a non-pneumatic tire assembly incorporating a wheel, a mechanical device

which attaches, either integrally or separably, to the non-pneumatic rim and provides the

connection between the non-pneumatic rim and the vehicle; or, in the case of a non-pneumatic

tire assembly not incorporating a wheel, a mechanical device which attaches, either integrally

or separably, to the non-pneumatic tire and provides the connection between tire and the

vehicle.

Wheel-holding fixture

The fixture used to hold the wheel and tire assembly securely during testing.

1.5. Tire Safety - Everything Rides On It

The National Traffic Safety Administration (NHTSA) has published a brochure (DOT HS 809

361) that discusses all aspects of Tire Safety, as required by CFR 575.6. This brochure is

reproduced in part below. It can be obtained and downloaded from NHTSA, free of charge,

from the following web site:

http://www.nhtsa.dot.gov/cars/rules/TireSafety/ridesonit/tires_index.html

Studies of tire safety show that maintaining proper tire pressure, observing tire and vehicle

load limits (not carrying more weight in your vehicle than your tires or vehicle can safely

handle), avoiding road hazards, and inspecting tires for cuts, slashes, and other irregularities

are the most important things you can do to avoid tire failure, such as tread separation or

blowout and flat tires. These actions, along with other care and maintenance activities, can

also:

Improve vehicle handling

Help protect you and others from avoidable breakdowns and accidents

Improve fuel economy

Increase the life of your tires.

This booklet presents a comprehensive overview of tire safety, including information on the

following topics:

Basic tire maintenance

Uniform Tire Quality Grading System

Fundamental characteristics of tires

Tire safety tips.

Use this information to make tire safety a regular part of your vehicle maintenance routine.