As a utility fleet manager, you operate perhaps the most diversified vehicle fleet of any business, typically using all weight classes of trucks, from light- to heavy-duty, on the road and off, hauling aerial devices, digger derricks and a slew of other job-specific equipment on good pavement or through fields of debris.
Given these characteristics, getting the best value and performance from your tires may not be rocket science, but it does take planning, smart spec’ing and commitment to a maintenance program, according to tire manufacturers.
A fleet’s first step toward tire value is to determine its goals, said Bill Walmsley, product category manager with Michelin Americas Truck Tires (www.michelintruck.com). What do you want in your tires? Durable, trouble-free service and long, even wear? Additional features? Regardless, selecting the best tire for the application is key. Walmsley suggested that fleets start by looking at the same tire size they currently have on their equipment by wheel position and then explore available options in that size to meet the specific conditions under which the equipment will operate. “This might entail specific load-carrying requirements, weather conditions or environmental issues, such as off-road products or tires which operate well in field or snow conditions,” he said.
Calibrating the balance between load and appropriate tire pressure is critical, but it also is easy since every tire manufacturer publishes load and inflation charts for their tires. The only way to make sure the calibrations are correct is to know the loads being carried and use the charts, Walmsley said.
“Tires are designed and optimized to carry a desired load at a specified pressure. Proper pressure for the maximum load being carried is very important. Underinflation and overinflation for the loads being carried will affect tire and casing life and performance,” Walmsley said.