And general maintenance is important for all of them. Not only does it save money in the long term, it makes everything safer for everyone on the road.
Everyone has a different idea of what PM means to them. There is the guy who doesnt take care of his equipment till it breaks, then there are the diligent owners and fleets that every service interval come in and have everything inspected to make sure it is safe and running right.
I myself have worked in a shop with their own check list for their fleet of rental cars and trucks. The sheet was the same regardless of what came in but it had all the points that one would pay attention to, if it was a moving truck, it had one set of extra points to check, and if it was a flat bed another set of points to check so everything would be checked no matter what came in.
On a semi truck, it would be different and much more detailed because of the strict regulations for them. if one thing is out of whack on one, then it would be considered out of service and parked on the side of the road at the scales.
A few examples of an out of service truck done on the Peterbuilt
Pic not shown, but caging screw in one of the air cans for the brakes is broken.
All of these things can be spotted and taken care of easily before they get to the point of the truck being parked at the scale waiting for a mechanic to come out.
And all this is done as your greasing the fittings underneath, always making notes to yourself on what is normal and what isn't
To me PM is a requirement, it makes any piece of equipment last longer and run better. it might cost more up front but it is worth it in the long run and in the big picture.
