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Trailer safety guidelines – Multiquip TRASH PUMP (hatz 1B40u-2203a diesel engine) Qp4tZt10p User Manual

Page 38

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page 38 — qp4TzT10p/TMp16F/TMpXF Trash puMp • operaTion & parTs Manual — rev. #1 (08/29/11)

next number: This two-digit number is the wheel or rim

diameter in inches. If you change your wheel size, you

will have to purchase new tires to match the new wheel

diameter.
next number: This two- or three-digit number is the tire’s

load index. It is a measurement of how much weight each

tire can support. You may fi nd this information in your

owner’s manual. If not, contact a local tire dealer. Note:

You may not fi nd this information on all tires because it is

not required by law.
M+s: The “M+S” or “M/S” indicates that the tire has

some mud and snow capability. Most radial tires have

these markings; hence, they have some mud and snow

capability.
speed rating: The speed rating denotes the speed at

which a tire is designed to be driven for extended periods

of time. The ratings range from 99 miles per hour (mph) to

186 mph. These ratings are listed in Table A. Note: You may

not fi nd this information on all tires because it is not required

by law.

u.s. DoT Tire identifi cation number: This begins with the

letters “DOT” and indicates that the tire meets all federal

standards. The next two numbers or letters are the plant

code where it was manufactured, and the last four numbers

represent the week and year the tire was built. For example,

the numbers 3197 means the 31st week of 1997. The other

numbers are marketing codes used at the manufacturer’s

discretion. This information is used to contact consumers

if a tire defect requires a recall.
Tire ply Composition and Materials used: The number of

plies indicates the number of layers of rubber-coated fabric

Table a. speed rating

letter rating

speed rating

Q

99 mph

R

106 mph

S

112 mph

T

118 mph

U

124 mph

H

130 mph

V

149 mph

W

168* mph

Y

186* mph

in the tire. In general, the greater the number of plies, the

more weight a tire can support. Tire manufacturers also

must indicate the materials in the tire, which include steel,

nylon, polyester, and others.
Maximum load rating: This number indicates the

maximum load in kilograms and pounds that can be carried

by the tire.
Maximum permissible infl ation pressure: This number

is the greatest amount of air pressure that should ever be

put in the tire under normal driving conditions.

uniform Tire quality grading standards (uTqgs)

Treadwear number: This number indicates the tire’s

wear rate. The higher the treadwear number is, the longer

it should take for the tread to wear down. For example, a

tire graded 400 should last twice as long as a tire graded

200.
Traction letter: This letter indicates a tire’s ability to stop

on wet pavement. A higher graded tire should allow you

to stop your car on wet roads in a shorter distance than a

tire with a lower grade. Traction is graded from highest to

lowest as “AA”,”A”, “B”, and “C”.
Temperature letter: This letter indicates a tire’s

resistance to heat. The temperature grade is for a tire that

is infl ated properly and not overloaded. Excessive speed,

underinfl ation or excessive loading, either separately or

in combination, can cause heat build-up and possible tire

failure. From highest to lowest, a tire’s resistance to heat

is graded as “A”, “B”, or “C”.
Refer to Figure J for additional tire information for light

trucks.

Figure J. UTQGS Tire Information

trailer saFety guidelines