Educational guidance on registers and logs — what each records, who maintains it, what it typically contains and how long it is generally kept. Informational only — template examples, not official documents or legal advice; a register documents activity, it does not by itself prove compliance, and employers remain responsible.
What an air compressor maintenance log is
An air compressor maintenance log is a running record of the servicing, routine checks and repairs done on compressors and their air receivers, filters and lines — building a history for each unit.
This page is an educational overview with a simplified example of what such a log usually contains. It is not an official template, not jurisdiction-specific and not legal advice — note that pressure parts such as receivers may also be subject to separate examination as pressure equipment.
Purpose
- Build a service and repair history for each compressor.
- Record routine checks of oil, filters, belts, drains and safety devices.
- Help plan servicing by date or running hours.
- Support decisions about repair, replacement or removal from service.
Who completes it
- A mechanic, engineer or service provider who did the work.
- A maintenance coordinator usually keeps the log.
- Operators record routine checks and report faults.
- It is the employer’s responsibility to ensure work is by a competent person.
When it is used
- At service intervals by date or running hours.
- When a repair is made or a part is replaced.
- When a routine check finds a developing fault.
- On a review cycle to confirm the schedule is followed.
Typical fields
- Compressor ID, make and model.
- Date and running hours at the time of work.
- Work done: service, check, repair or part replacement.
- Condition of oil, filters, belts, drains and safety valve.
- Defects found and next service due, with sign-off.
- These are example fields only — adapt them to your compressors and the applicable law.
Common mistakes
- Routine checks of drains and safety devices skipped.
- Servicing by date but ignoring running hours.
- Pressure receiver examination confused with routine servicing.
- A log that does not match the compressors actually in use.
Document workflow
An air compressor maintenance log works with the servicing schedule that sets what is due, the pressure equipment register where the receiver is examined separately, and the breakdown log for failures. A routine check finding may raise a defect; the history informs the next service.
See the related documents below for what is commonly used before, alongside and after an air compressor maintenance log.
Retention (high level)
Employers generally keep compressor maintenance records for as long as the unit is in service and for a period afterwards, in line with their obligations. Specific retention periods vary by jurisdiction.
This page does not state a required period — confirm retention with the applicable law and the official authority.
Completing and sharing as a PDF
Air compressor maintenance logs are commonly stored and shared as PDFs for records and audit. Exporting to PDF supports documentation; it does not make the log official or guarantee compliance.
Employer checklist
- Set servicing intervals by date and running hours.
- Ensure routine checks of drains and safety devices happen.
- Keep the pressure receiver’s separate examination records aligned.
- Ensure work is done by a competent person and logged at the time.
Operator notes
- Do routine checks such as draining condensate as instructed.
- Report leaks, unusual noise or a developing fault.
- Do not use a compressor marked out of service.
Country considerations
Requirements for maintaining and examining compressors and their pressure parts vary by country, and the official authority differs. This page is high-level and general — it is not a statement of any country’s law and not a guarantee that a log is valid anywhere.
Always confirm the current requirements with the official authority for your country and a qualified professional.
Who is responsible
The employer is responsible for ensuring compressors and pressure parts are maintained, examined where required and safe to use, and for compliance. This page is an educational overview with a template example; it does not determine what your log must contain, does not make a workplace compliant and does not transfer responsibility.
Export, edit and share documents
The documents, policies and templates this involves can be exported, edited, signed, stored and shared as PDFs with the HELPERG PDF Editor.
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