Most of the program is the pressure gauge
A mining tire program sounds like a large undertaking, and parts of it are. Day to day, though, the single activity that does the most for tire life is also the plainest: checking pressures, correctly, on schedule, and acting on what the gauge says.
Inflation sets how a large tire carries its load. A tire running under its proper pressure flexes more with every rotation, and on a haul truck that extra flexing turns into heat inside the casing. Heat is what breaks down a large tire from the inside, where nobody can see it until the tire fails. A tire running well over pressure has its own problems: a smaller footprint, less give against rocks, and more exposure to cuts.
A program puts structure around that.
Who checks, and when. A named person or crew, at a set point in the shift, on every unit. Pressures taken cold where possible, since a tire straight off a haul cycle reads high.
Against what. A target pressure for each machine and position, set for the load and the application, written down where the person checking can see it.
What happens next. A tire outside its range is corrected, recorded, and watched. A tire that keeps losing pressure is pulled for inspection before it becomes a failure.
None of that is complicated. What makes it hard is doing it every shift, on every unit, through busy weeks, and that consistency is most of what a program provides.
What else the program covers
Fitting and repairs through OTR services, large wheels returned to service through wheel refurbishing, and casings sent to the Phoenix retread plant. Phoenix is also the Arizona location for mobile service. The national mining fleet services page explains the full scope.
This is the Commercial & Consumer listing; the Phoenix city page explains the others.
About this store
The Phoenix store carries all nine Purcell tire categories, is open Monday to Friday, 7:00 AM to 5:00 PM, and is managed by Patrick Taylor.
See the national mining fleet services page for all 13 locations.