Air compressor maintenance tracking: schedule, checklist and records

The FEMP guide's air compressor checklist splits the work into four frequencies. The manufacturer's manual always comes first; this list adds the routine checks a manual may not spell out.

Daily and weekly items usually fall to the site's own staff, the annual work to the maintenance team or the service company. Writing on the checklist who owns each item keeps both sides from skipping the same one.

Under Türkiye's regulation on health and safety in the use of work equipment, compressor air receivers are inspected at least once a year unless a standard sets another period. The regulation lists mobile and fixed compressor air tanks under "compressed air and gas tanks".

• Every periodic inspection includes an examination, with a hydrostatic test at operating pressure at least once a year.
• At least every three years, or after any major maintenance or repair, a hydrostatic test is run at the test pressure in the manufacturing standard (or 1.5 times the maximum pressure if the standard gives none).
• The inspection is done by an authorized person listed in the regulation, such as a mechanical engineer or mechanical technician; the report carries the inspector's EKİPNET registration number.
• Inspection results are recorded with a wet signature or a secure electronic signature and kept to show the authorities on request.

This section summarizes the regulation; confirm the standard and period that apply to your receiver with the authorized inspector. On the tracking side the job is simple: attach the last inspection date and report to the receiver's card and enter the next inspection date.

The leak rate is worked out from how long the compressor spends loaded and unloaded while all air-using equipment is off. According to the FEMP guide, leaks should be under 10% of compressor capacity in a well-maintained system; in poorly maintained systems they can reach 20–30%.

The method works on compressors with start/stop or load/unload control. With all end uses off, the compressor loads and unloads only to feed the leaks. Measure the loaded time (T) and the unloaded time (t) over several cycles:

Leak rate (%) = T × 100 / (T + t)

If the compressor spends 2 minutes loaded and 6 minutes unloaded on average, the leak rate is 2 × 100 / 8 = 25%. Entering this figure in the service report at every visit shows whether leaks are growing or shrinking from one report to the next.

A good record tells the next technician what to expect before reaching the machine. Run hours, measurements and the receiver row are compressor-specific; the rest belong on any asset record.

In PureField field service, every compressor and air receiver is a QR-coded asset card. The card holds the warranty, the next maintenance date, documents (including the inspection report) and the service history.

• Measurements and chart: In the mobile service report the technician enters the measurement values your company defines, such as the hour meter, pressure or leak rate. The PDF prints them as a table and as a "Measurement analysis" chart drawn from the asset's recent reports.
• Checklist: Weekly or annual check items are added to the report as a checklist template; the technician closes the report with photos and signatures.
• Report to the customer: When the report is saved, an email with the PDF attached goes to the addresses on the form; the invoice is issued from the finished service report.
• Maintenance reminder: A reminder email goes to the customer and the service team based on the next maintenance date; your team opens the work order.
• AI suggestion: If it is switched on for your account, a card on the mobile report form looks at the asset's last three reports and writes a suggestion, priority and check items; the technician fills in the form.
• Installed base revenue: Installed equipment is scanned every morning; upcoming or overdue maintenance, consumables and spare parts, maintenance contract renewals and "replacement recommended" findings from service reports are listed as revenue opportunities. Included in the PurePioneer and PureExecutive plans.

For companies that sell compressors and service them, see industrial machinery service and spare parts.