National Crane Published 03-18-2019 Control # 582-04 6-7
NBT30H-2 OPERATOR MANUAL MAINTENANCE CHECKLIST
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