NATIONAL CRANE Published 9-26-2018 Control # 646-02 6-7
NTC55 OPERATOR MANUAL MAINTENANCE CHECKLIST
TIRE LOAD AND INFLATION TABLE
Definite tire inflation pressures are established for each tire
size depending upon the load imposed on the tires. For
greater stability, riding comfort and prolonged tire life, tires
should be inflated for the loads carried. The “Load and
inflation Table" shown below indicates the proper inflation
pressure.
NOTE: The values in the tables below are as published by
the Tire and Rim Association 2005. Your vehicle
may be equipped with other tire sizes or the same
size tires rated differently. Always check the tire
sidewalls to verify the maximum capacity and
inflation. Inflation pressure and loading must not
exceed the values shown on the wheel or rim.
Tire and Load Inflation Tables
Letters in parenthesis denote the load range for which the bold face loads are a maximum.
International load index numbers are shown after the load range. The load range letters and
corresponding ply rating are shown below.
D = 8 ply • E = 10 ply • F = 12 ply • G = 14 ply
H = 16 ply • J = 18 ply • L = 20 ply • M = 22 ply • N = 24 ply
Radial Ply Metric Tires for Trucks, Busses, and Trailers Used in Normal Highway Service
Radial Ply Tires Mounted on 15° Drop Center Rims
Tire and Rim Association Standard
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