An air compressor preventive maintenance schedule lists the checks and jobs done on the equipment at fixed intervals, how long each takes, and in what order of frequency, so problems are found before the air compressor fails. This page gives the schedule used in the PlantOps360 task library for air compressor (screw), which follows common industry practice for general-purpose equipment. It is also searched for as screw compressor, rotary screw compressor, oil injected compressor, plant air compressor.
The maker’s manual and your site safety procedures always come first where they differ. Intervals set by law differ by state.
Air compressor preventive maintenance schedule and checklist
| How often | Task | Estimated time |
|---|---|---|
| Daily | Check oil level, discharge pressure and temperature | 5 min |
| Daily | Drain condensate from receiver and separators (if not automatic) | 5 min |
| Weekly | Clean or check intake air filter | 10 min |
| Monthly | Check belts and couplings; check for air leaks | 30 min |
| Quarterly | Clean cooler fins | 45 min |
| Half-yearly | Replace oil filter and air filter element | 60 min |
| Annual | Replace oil and separator element; check safety valve | 180 min |
Air compressor maintenance frequency and yearly workload
At the estimated times, one air compressor needs about 84 hours of preventive maintenance a year. The biggest single job is “Replace oil and separator element; check safety valve” at 180 minutes, done annual. Multiply by the number of units you have to see the workload for your plant.
| Frequency | Tasks | Time per round | Hours per year |
|---|---|---|---|
| Daily | 2 | 10 min | 60.8 h |
| Weekly | 1 | 10 min | 8.7 h |
| Monthly | 1 | 30 min | 6.0 h |
| Quarterly | 1 | 45 min | 3.0 h |
| Half-yearly | 1 | 60 min | 2.0 h |
| Annual | 1 | 180 min | 3.0 h |
What goes wrong on an air compressor without preventive maintenance
- Overheating from a dirty cooler or low oil level
- Oil carry-over when the separator element is saturated
- Moisture in the lines when condensate is not drained
- Air leaks that keep the machine loaded and waste energy
What to watch between services
- Discharge temperature and pressure
- Pressure drop across the filter and separator
- How often it loads and unloads
Safety and statutory notes for air compressor maintenance
The air receiver is a pressure vessel. Its examination interval is set by the rules that apply in your state, and the certificate belongs on the asset record.
Where an air compressor preventive maintenance schedule is used
An air compressor is found in almost every industry. The industry guides below show how it fits into the wider schedule of each one:
- Preventive maintenance schedule for pharmaceutical plants
- Preventive maintenance schedule for food, dairy and beverage plants
- Preventive maintenance schedule for automotive plants
- Preventive maintenance schedule for chemical, fertiliser and petrochemical plants
- Preventive maintenance schedule for cement, glass, ceramics and building materials plants
- Preventive maintenance schedule for steel, foundry, forging and metal plants
- Preventive maintenance schedule for textile and garment mills
- Preventive maintenance schedule for thermal and hydro power plants
See all industry preventive maintenance schedules.
Related equipment maintenance schedules
- Reciprocating air compressor preventive maintenance schedule
- Oil-free screw / scroll compressor preventive maintenance schedule
- Centrifugal compressor preventive maintenance schedule
- Compressed air dryer (refrigerated) preventive maintenance schedule
- Compressed air dryer (desiccant) preventive maintenance schedule
- Compressed air filters, receivers preventive maintenance schedule
- Nitrogen generator preventive maintenance schedule
Browse the full list of equipment preventive maintenance schedules (317 types).
Run this air compressor schedule in maintenance software
In preventive maintenance software, each row above becomes a recurring task on the asset with its checklist, time estimate and parts. Tasks can be triggered by calendar date, running hours, meter readings or production cycles, each completed task is recorded with the person and date, and a failed check can open a work order. For the method behind it, read the guide to the preventive maintenance schedule, or use the free generator to get a 12-month plan for your whole equipment list.
Build my preventive maintenance schedule (free Excel)
Frequently asked questions
How often should an air compressor be serviced?
In our schedule an air compressor has 7 tasks: 2 daily, 1 weekly, 1 monthly, 1 quarterly, 1 half-yearly, 1 annual. The biggest job is “Replace oil and separator element; check safety valve”, which is done annual. Always follow the maker’s manual where it gives a different interval.
What is included in air compressor preventive maintenance?
It covers routine checks and jobs such as “Check oil level, discharge pressure and temperature”, “Drain condensate from receiver and separators (if not automatic)”, “Clean or check intake air filter”, up to the annual overhaul or inspection. The full list with times is in the table above.
How many hours of maintenance does an air compressor need per year?
About 84 hours per unit per year at the estimated times in our library, including the daily checks done every day. Use it to plan workload, not as a benchmark.
Is there a free air compressor maintenance checklist?
Yes. The table on this page is a ready checklist. The free preventive maintenance schedule generator turns it into a 12-month Excel schedule for your list of equipment, with monthly workload hours.