How to set up a school bus preventive maintenance schedule

Most bus breakdowns don't come out of nowhere. A belt cracks over months, brake linings wear down a little every run, a tire loses pressure slowly. A school bus preventive maintenance schedule catches those things on a calendar you control — in the summer or on a weekend — instead of on the side of the road with students on board.

This guide covers how to set intervals, how often school buses should be serviced, what a quarterly inspection looks at, and how to keep the schedule from slipping once the school year gets busy.

Miles, hours or dates — and why you need all three

A preventive maintenance (PM) task becomes due in one of three ways. Good schedules combine them, so a task is due at whichever comes first:

• Miles — the right measure for wear items on a bus that drives a lot: oil, filters, brakes, tires.
• Engine hours — useful when buses idle a lot. An hour of idling wears the engine without adding a mile.
• Days (a date) — for things that age on the calendar whether the bus moves or not: fluids, belts and hoses, batteries, and any inspection your state requires on a fixed cycle.

A bus that sits all summer still needs its date-based service. A bus that runs a long rural route will hit its mileage first. "Whichever comes first" covers both.

How often should school buses be serviced?

There isn't one answer for every bus, and nobody outside your shop should give you one. Two sources set your intervals:

• The manufacturer's manual — the chassis and engine makers give intervals for oil, filters, fluids and more. Stop-and-go school routes with lots of idling often count as severe or heavy duty in those manuals, which usually means shorter intervals.
• Your state — states set their own school bus inspection rules, and some require inspections more than once a year. See how often are school buses inspected and the state pages in our school bus inspection requirements guide.

Then adjust with your own records: if a bus keeps coming in with the same problem between services, its interval is too long.

A sample school bus preventive maintenance schedule

Here's a simple way to lay out a schedule. The intervals are left for you to fill in from your manuals and state rules — that's the point.

What is checked on a quarterly fleet inspection?

A quarterly inspection is a mechanic's look at the parts that wear between bigger services. Our free quarterly vehicle inspection checklist covers:

• Brake system — service brakes, parking brake, drums or rotors, hoses and tubing, the low-pressure warning, air compressor, vacuum systems, electric and hydraulic brakes.
• Brake linings — thickness and condition at the left front, right front, left rear and right rear.
• Lighting devices — headlights, tail lights, turn signals, marker and clearance lights, school bus warning lights, indicator lights, the stop arm and crossing arm, and the back-up alarm.
• Glass — cracks, discoloration and anything blocking the view.
• Doors — entry steps, step-well light, door seals and grab handles.
• Fuel system — visible leaks, the filler cap and the tank mounting.
• Tires and wheels — correct, matched size, tread depth, inflation, no cuts or bulges, wheels and rims not cracked, lug nuts tight.

It has OK / Fail boxes, a place for repairs needed, and the mechanic's signature. Print the quarterly checklist for each bus, or use it as the model for your own.

Keeping the schedule from slipping

1. 1Put every bus on the schedule — including spares and the bus that only does field trips.
2. 2Record the odometer often. A mileage-based schedule is only as good as the last reading. Fuel fill-ups are a natural moment.
3. 3Look ahead weekly. Every week, list what's due in the next two weeks and book the bus into the shop around its routes.
4. 4Close the loop. When a job is done, record the date and mileage so the next due date moves on.
5. 5Feed in defects. Problems drivers find on their pre-trips belong in the same queue as scheduled work.
6. 6Review once a term. Which buses keep breaking down between services? Shorten their intervals.

For more on choosing a system to run all this, see school bus maintenance software for small fleets. What you must keep on file afterwards is covered in school bus maintenance records requirements.

Doing it in FleetCommander

In FleetCommander's Maintenance section, each schedule is one recurring task on one vehicle. Press New schedule, choose the vehicle and the task — presets fill in an oil change, brake inspection, tire inspection, safety inspection (twice a year) or seasonal inspection — and set the interval: every so many miles, engine hours or days, or a fixed date. Combine them and whichever comes first makes it due. Enter when and at what mileage it was last done, and the app works out Next due.

Each schedule shows as Upcoming, Due soon, Due, Overdue or Completed, and an overdue one raises a notification. Create work order turns it into a job; when the work order is completed, it's recorded in Service history and the schedule moves on to its next due date or mileage. Failed items from drivers' inspections arrive as defects for the same team. For the quarterly inspection, Inspections › Templates has a ready-made Quarterly vehicle inspection in the templates library that you can add and change. Reports include Preventive maintenance compliance and Overdue maintenance. See the maintenance software page.

Ask Ava (Beta), the assistant in the app, What maintenance is overdue?, anything overdue for service or When is its next service? on a bus's page. She can also set things up for you: say Add a maintenance schedule for bus 102 and she asks for anything missing, one question at a time, then shows a card — nothing is saved until you press Add schedule. Open a work order for bus 102 turns the bus's open defect into a work order, again only once you press Create work order.