Keen Transport, Inc. picks up new construction and mining equipment from factories and ports around the country and delivers it to end users. When a 250,000 pound piece of construction equipment rolls off the assembly line in Peoria, the Keen rig that picks it up for delivery could easily have 13 axles and 52 tires. That’s a lot of rubber hitting the you-know-what.
So, it shouldn’t come as a surprise that Keen Transport’s maintenance director, Lloyd Hair, pays a lot of attention to his tires. And, even with seven shops around the country, he pays attention to every detail, no matter how small.
“The first thing you’ve got to do for your tires is make sure the air pressure is correct,” he says. “It’s the first step, and it’s a simple thing. Everybody looks for complicated things, but you just need to make sure it’s inflated to the proper pressure.”
LOAD TABLES
But Hair doesn’t let his technicians go just by the numbers on the sides of the tires. He consults with online load tables for each of his three tire vendors—Bridgestone, Continental and Michelin—and calculates the proper pressures for his fleet’s loads, then incorporates those guidelines in his tire PMs.
“Every trailer goes through a Keen yard (for PM) every 90 days,” Hair explains. “Every truck comes through based on mileage or time, but every third PM has to be done at a Keen facility.
“At the PM we gauge every tire,” he says. “Now the industry says gauge every tire every day, every week, but I just don’t think anyone does that—it’s just not going to happen. So, we have the drivers thumping the tires and looking for problems during their pre-check.
“And we do a yard check every day, where the facility maintenance guy will walk around and look for all the problems,” he says. “Whatever the problem is, we try to find it at the facility. So, even though we have the drivers doing their pre-trips, we also need that extra set of eyes looking at it, because if it’s a $30 or $40 repair in your yard, it’s $150 or $200 out on the road.”




