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Wheels and tires – FORD 2015 F-550 v.1 User Manual

Page 273

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*Temperature: The temperature

grades are A (the highest), B and

C, representing the tire's

resistance to the generation of

heat and its ability to dissipate
heat when tested under controlled
conditions on a specified indoor
laboratory test wheel.

M. Maximum Inflation
Pressure: Indicates the tire
manufacturers' maximum
permissible pressure or the
pressure at which the maximum
load can be carried by the tire. This
pressure is normally higher than

the vehicle manufacturer's

recommended cold inflation

pressure which can be found on
the Safety Compliance

Certification Label (affixed to

either the door hinge pillar,

door-latch post, or the door edge

that meets the door-latch post,
next to the driver's seating

position), or Tire Label located on

the B-pillar or the edge of the
driver's door. The cold inflation

pressure should never be set lower

than the recommended pressure

on the vehicle label.
The tire suppliers may have

additional markings, notes or

warnings such as standard load

or radial tubeless.

Additional Information
Contained on the Tire Sidewall
for LT Type Tires

Note: Tire Quality Grades do not
apply to this type of tire.

A

B

C

B

D

E142544

LT type tires have some additional

information beyond those of P
type tires. These differences are

described below.
A. LT: Indicates a tire, designated

by the Tire and Rim Association,

that is intended for service on light
trucks.
B. Load Range and Load

Inflation Limits: Indicates the

tire's load-carrying capabilities
and its inflation limits.
C. Maximum Load Dual lb (kg)

at psi (kPa) cold: Indicates the

maximum load and tire pressure
when the tire is used as a dual;

defined as four tires on the rear

axle (a total of six or more tires on
the vehicle).

270

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Wheels and Tires

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