a continuation for last blog:
All the buses we have come in for at least an inspection and greasing every 2,000 miles. We will change oil and filters as the service interval comes up. Pretty much every inch of the bus is looked over for anything that is out not right. The inspection sheets have all the main things to look at by really you are looking at more than what is on the three pages. PMs are really when you have vehicle that is transporting other parents kids.
The brake system is a really important part of a bus to keep maintained. Bad things could happen if the brakes fail while operating the bus. When preform my inspection of the bottom side of the bus, the brakes are one of the first things I look at. Things that I look for are, broken parts, missing parts, cracks, brake lining (needs to be more than 1/4in thick), wearing, grease or oil, and any other form of damage. I take a look at the brake chambers and the slack adjusters to make sure that they are not damaged and they are secure. Other things I look for as part of the brake system is, damaged hoses or lines, air leaks, damaged valves, and make sure there’s no damage to the air tanks.
I also check the push rod stroke. Here are the steps to check the push rod stroke: first, identify the brake chamber size. Second, look up the maximum allowed push rod length. Third, make a mark flash with the camber housing. Fourth, have someone apply the brakes. Fifth, measure from the face of the chamber to the mark that you made on the push rod.