Air Compressor Inspection Checklist (Free Excel Template)
This air compressor inspection checklist has two sheets: a daily pre-start check done at the unit before the first start, and a fuller periodic checklist for maintenance. Both work for electric and engine-driven compressors, and both cover draining the air receiver.
Excel (.xlsx) · 7 sheets · Updated 2026-10-21
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Who is this air compressor inspection checklist for?
- Plant maintenance techs responsible for shop air compressors
- Equipment managers who send portable diesel compressors to job sites
- Supervisors who want pre-start checks written down instead of done from memory
When to use it
The operator fills in the Pre-Start sheet before the first start each day, one sheet per compressor per month. Maintenance uses the Inspection Checklist on its own schedule, daily or monthly, one sheet per inspection.
What's included
The template includes the following. Delete anything you do not need.
- Pre-Start: area and unit (intake and exhaust, guards, chocks and hitch), 5 checks
- Pre-Start: oil, fuel, and cooling, including V-belt condition, 5 checks
- Pre-Start: air system and receiver (tank drain, gauges, safety valve, hoses and couplings), 6 checks
- Pre-Start: electrical for electric units and 3 checks right after start-up
- Inspection Checklist: running condition, oil, drains and air system, cooling, safety devices and electrical
- Inspection Checklist: air receiver condition, nameplate, inspection date, and records
- Defect record, sign-off, filled-in samples, and print sheets
Preview the Excel file
This is the actual file. Use the tabs below to switch between the 7 sheets. How to mark each result is explained on the "Instructions" sheet.
| A | |
|---|---|
| 1 | Air Compressor Inspection Checklist (Pre-Start and Periodic) |
| 2 | |
| 3 | ■ Source |
| 4 | Worker Library https://worker-library.com/templates/air-compressor-inspection-checklist/ |
| 5 | Request a template or an extra item: https://worker-library.com/contact/ |
| 6 | |
| 7 | ■ Sheets in this workbook |
| 8 | "Pre-Start (Daily)" … Checked at the unit before the first start of the day, plus a few checks right after start-up. One sheet per compressor per month. Works for electric and engine-driven units. |
| 9 | "Inspection Checklist" … A fuller check by maintenance, done daily or monthly as your program sets: running condition, lubrication, drains and air system, cooling, safety devices, and the air receiver. One sheet per inspection. |
| 10 | "Sample - Pre-Start" … A filled-in example of the "Pre-Start (Daily)" sheet. |
| 11 | "Sample - Inspection" … A filled-in example of the "Inspection Checklist" sheet. |
| 12 | "Print - Pre-Start" … "Pre-Start (Daily)" laid out for printing and filling in by hand (US Letter, column headings repeat on every page). |
| 13 | "Print - Inspection" … "Inspection Checklist" laid out for printing and filling in by hand (US Letter, column headings repeat on every page). |
| 14 | |
| 15 | ■ How to use |
| 16 | 1. Use one Pre-Start sheet per compressor per month. Fill in the unit, ID, and type first. |
| 17 | 2. Delete the rows marked (engine units), (water-cooled), or (electric units) that do not apply. The list gets shorter and fits on one printed page. |
| 18 | 3. Each morning before start-up, pick ✓, X, or N/A for each check. Drain the receiver as part of the check. |
| 19 | 4. If any item is X, do not start the unit. Write what happened, who you told, and what was done in the defect record. |
| 20 | 5. Maintenance fills in the Inspection Checklist on its schedule and records readings such as pressure, temperature, and run hours. |
| 21 | |
| 22 | ■ How to mark results, and what to do (read before you start) |
| 23 | [Pre-Start (Daily) / Sample - Pre-Start / Print - Pre-Start] |
| 24 | ✓ OK … Use as normal. |
| 25 | X Defect … Stop using it right away. Tell your supervisor and fill in the defect record below. |
| 26 | N/A … Not applicable today. Do not leave the cell blank. A blank cell means "not checked". |
| 27 | The person doing the inspection may decide to stop. Nobody is blamed for stopping. If in doubt, mark X. |
| 28 | After a repair, do not use it until the verifier writes the date and time it was returned to service. |
| 29 | |
| 30 | ■ How to mark results, and what to do (read before you start) |
| 31 | [Inspection Checklist / Sample - Inspection / Print - Inspection] |
| 32 | Pass … OK to use. |
| 33 | Fail … Stop using it on the spot and tag it "Do Not Use" or barricade the area. Tell your supervisor and write the corrective action. |
| 34 | N/A … The item does not exist here or does not apply today. Do not leave it blank. A blank cell means "not checked". |
| 35 | The inspector may decide to stop. Nobody is blamed for stopping. If in doubt, mark Fail. |
| 36 | After the corrective action, do not return it to service until the verifier writes the re-check date and name. |
| 37 | |
| 38 | ■ Adapting it to your site |
| 39 | • If you run only electric or only engine units, delete the rows for the other type. |
| 40 | • For several compressors, copy the sheet once per unit. |
| 41 | • Record discharge pressure, oil temperature, and run hours as numbers to see trends. Clear the data validation on those cells to type numbers. |
| 42 | • Decide whether the tank is drained before start-up or after shutdown, and write that on the sheet so everyone does it the same way. |
| 43 | |
| 44 | ■ Things to watch |
| 45 | • OSHA asks that the drain valve on an air receiver be opened and the receiver completely drained often enough to prevent excessive liquid from building up (29 CFR 1910.169(b)(2)). This checklist is a way to record that; check the current rule. |
| 46 | • This is a general template, not an official OSHA form, and it does not replace any inspection your state or insurer requires for pressure vessels. |
| 47 | • Air receivers may fall under state boiler and pressure vessel rules. Check with your state program or insurer whether your receiver needs a periodic inspection. |
| 48 | • Never adjust, plug, or bypass a safety valve. Release pressure and lock out the unit before maintenance. |
| 49 | |
| 50 | ■ About this template |
| 51 | A free inspection template from Worker Library. |
| 52 | You may copy, edit, and print it for use in your own organization. Add or delete items as you need. |
| 53 | Please do not redistribute or sell the template itself. |
| 54 | |
| 55 | ■ Important notice |
| 56 | This template organizes common inspection items for reference. It is not an official form issued by OSHA or any other authority, and using it does not by itself show compliance. |
| 57 | Which inspections are required, how often, and how long records must be kept depend on the equipment, industry, size of the operation, and location (federal, state, and local rules can all apply). |
| 58 | Check the regulations and standards that apply to you, the manufacturer's instructions, and a qualified or competent person. |
| 59 | Worker Library accepts no liability for any loss arising from the use of this template. |
| 60 | Regulations change. Check the source page above for the latest version. |
| 61 | |
| 62 | ■ Related regulations and standards (for reference) |
| 63 | OSHA 29 CFR 1910.169(b)(2): the drain valve on an air receiver must be opened and the receiver completely drained often enough to prevent excessive liquid from building up. OSHA does not set a daily or monthly compressor inspection form; follow the manufacturer's maintenance schedule and any state boiler and pressure vessel rules that apply to your receiver. |
| 64 | |
| 65 | ■ Updated |
| 66 | 2026-10-21 (reviewed every 3 months) |
| 67 | |
| 68 | ■ About Worker Library |
| 69 | Worker Library publishes free Excel inspection checklists, logs, and forms for maintenance, safety, and quality teams. |
| 70 | All templates: https://worker-library.com/templates/ |
| A | B | C | D | E | F | |
|---|---|---|---|---|---|---|
| 1 | Air Compressor Inspection Checklist (Pre-Start and Periodic) | |||||
| 2 | Unit | Unit ID | ||||
| 3 | ||||||
| 4 | Inspection item | 1 | 2 | 3 | 4 | 5 |
| 5 | ■ Before start: area and unit | |||||
| 6 | Air intake, exhaust, and cooling air path not blocked | |||||
| 7 | No flammables, oil, or tools left around the unit | |||||
| 8 | Covers, belt guard, and doors securely in place | |||||
| 9 | Wheel chocks, mounting, and tow hitch secure (portable units) | |||||
| 10 | Repairs to last defect (X) completed | |||||
| 11 | ■ Before start: oil, fuel, and cooling | |||||
| 12 | Compressor oil level between the marks | |||||
| 13 | Oil not dirty, milky, or discolored; no oil leaks | |||||
| 14 | Engine oil and fuel levels in range, no leaks (engine units) | |||||
| 15 | Coolant level; radiator not clogged or leaking (water-cooled) | |||||
| 16 | V-belt tension, wear, and cracks | |||||
| 17 | ■ Before start: air system and receiver | |||||
| 18 | Air receiver (tank) drained | |||||
| 19 | Pressure gauge and thermometer read zero; glass not cracked | |||||
| 20 | Safety valve: not damaged or stuck; seal intact | |||||
| 21 | Air hoses and couplings: no cracks or wear; safety pins or whip checks in place | |||||
| 22 | Tank and piping: no rust, deformation, dents, or water leaks | |||||
| 23 | Discharge (service) valve in the start-up position the manual specifies | |||||
| 24 | ■ Before start: electrical (electric units) | |||||
| 25 | Power cord, plug, and terminals: no damage or signs of overheating | |||||
| 26 | Ground (earth) connection secure | |||||
| 27 | Ground-fault breaker trips with the test button | |||||
| 28 | ■ Right after start-up | |||||
| 29 | No abnormal noise, vibration, smell, or smoke | |||||
| 30 | Pressure builds to set point and unloader works | |||||
| 31 | Warning lights off; no air, oil, fuel, or coolant leaks | |||||
| 32 | Inspected by (initials) | |||||
| 33 | Supervisor check (initials) | |||||
| 34 | ||||||
| 35 | Defect record (fill in every time you mark a defect. Fill left to right in the order things happened. "Condition found" is written by the person who found it, "Corrective action" by the person who fixed it, "Verified by" by the person who checked it.) | |||||
| 36 | Date / item | Condition found | ||||
| 37 | ||||||
| 38 | ||||||
| 39 | ||||||
| 40 | ||||||
| 41 | Reviewed by (supervisor) | |||||
| 42 | ||||||
| 43 | ||||||
| 44 | Notice: This is a general-purpose inspection record. It is not an official government form and does not by itself show compliance with OSHA or any other regulation or standard. | |||||
| 45 | Related regulations and standards (for reference): OSHA 29 CFR 1910.169(b)(2): the drain valve on an air receiver must be opened and the receiver completely drained often enough to prevent excessive liquid from building up. OSHA does not set a daily or monthly compressor inspection form; follow the manufacturer's maintenance schedule and any state boiler and pressure vessel rules that apply to your receiver. | |||||
| 46 | Which inspections you need, how often, and how long to keep records depend on your equipment, industry, and location. Check the regulations that apply to you, the manufacturer's instructions, and a qualified person. | |||||
| 47 | Worker Library accepts no liability for any loss arising from the use of this template. Regulations change; check the source page for the latest version. | |||||
| 48 | Worker Library https://worker-library.com/templates/air-compressor-inspection-checklist/ Updated 2026-10-21 | |||||
This preview shows the first 6 of 33 columns. The downloaded file contains everything.
| A | B | C | D | E | F | |
|---|---|---|---|---|---|---|
| 1 | Air Compressor Inspection Checklist (Pre-Start and Periodic) | |||||
| 2 | Unit ID | Type / power | ||||
| 3 | Location | Date | ||||
| 4 | ||||||
| 5 | No. | System | Inspection item | Reading / notes | Result | Findings / action taken |
| 6 | 1 | Running condition | Discharge pressure within the set range | |||
| 7 | 2 | Discharge temperature within the normal range | ||||
| 8 | 3 | No abnormal noise or vibration | ||||
| 9 | 4 | Total run hours and load percentage recorded | ||||
| 10 | 5 | Starts and stops normally | ||||
| 11 | 6 | Lubricating oil | Oil level between the high and low marks | |||
| 12 | 7 | Oil not dirty, milky, or discolored | ||||
| 13 | 8 | No oil leaks | ||||
| 14 | 9 | Oil change due date not close | ||||
| 15 | 10 | Drains and air system | Condensate drains discharging | |||
| 16 | 11 | Drain trap not clogged | ||||
| 17 | 12 | Air filter not clogged (differential pressure) | ||||
| 18 | 13 | No air leaks at piping or fittings | ||||
| 19 | 14 | Air receiver (tank) drained | ||||
| 20 | 15 | Cooling | Cooling fan turning normally | |||
| 21 | 16 | No dust buildup on cooling fins or oil cooler | ||||
| 22 | 17 | Cooling water flow and temperature correct (water-cooled) | ||||
| 23 | 18 | Safety devices and electrical | Safety valve operation checked (set pressure) | |||
| 24 | 19 | Pressure switch and unloader work | ||||
| 25 | 20 | Emergency stop button works | ||||
| 26 | 21 | Wiring and terminals: no damage or signs of overheating | ||||
| 27 | 22 | Ground wire securely connected | ||||
| 28 | 23 | Air receiver (if equipped) | Receiver exterior: no rust, deformation, or damage | |||
| 29 | 24 | Receiver nameplate (maximum allowable working pressure) legible | ||||
| 30 | 25 | Next receiver inspection date checked (if your state, insurer, or manufacturer sets one) | ||||
| 31 | 26 | Receiver inspection records on file | ||||
| 32 | 27 | |||||
| 33 | 28 | |||||
| 34 | ||||||
| 35 | Defect record (fill in every time you mark a defect. Fill left to right in the order things happened. "Condition found" is written by the person who found it, "Corrective action" by the person who fixed it, "Verified by" by the person who checked it.) | |||||
| 36 | Date / condition found | Stopped? / reported to / action | Verified by / returned to service | |||
| 37 | ||||||
| 38 | ||||||
| 39 | ||||||
| 40 | ||||||
| 41 | Summary (what must be done before the next inspection, due date, person responsible) | |||||
| 42 | ||||||
| 43 | ||||||
| 44 | ||||||
| 45 | Inspected by | Reviewed by (supervisor) | Approved by (manager) | |||
| 46 | ||||||
| 47 | ||||||
| 48 | Notice: This is a general-purpose inspection record. It is not an official government form and does not by itself show compliance with OSHA or any other regulation or standard. | |||||
| 49 | Related regulations and standards (for reference): OSHA 29 CFR 1910.169(b)(2): the drain valve on an air receiver must be opened and the receiver completely drained often enough to prevent excessive liquid from building up. OSHA does not set a daily or monthly compressor inspection form; follow the manufacturer's maintenance schedule and any state boiler and pressure vessel rules that apply to your receiver. | |||||
| 50 | Which inspections you need, how often, and how long to keep records depend on your equipment, industry, and location. Check the regulations that apply to you, the manufacturer's instructions, and a qualified person. | |||||
| 51 | Worker Library accepts no liability for any loss arising from the use of this template. Regulations change; check the source page for the latest version. | |||||
| 52 | Worker Library https://worker-library.com/templates/air-compressor-inspection-checklist/ Updated 2026-10-21 | |||||
| A | B | C | D | E | F | |
|---|---|---|---|---|---|---|
| 1 | Air Compressor Inspection Checklist (Pre-Start and Periodic) [SAMPLE] | |||||
| 2 | Unit | Portable air compressor | Unit ID | AC-03 | ||
| 3 | ||||||
| 4 | Inspection item | 1 | 2 | 3 | 4 | 5 |
| 5 | ■ Before start: area and unit | |||||
| 6 | Air intake, exhaust, and cooling air path not blocked | ✓ | ✓ | ✓ | ✓ | ✓ |
| 7 | No flammables, oil, or tools left around the unit | ✓ | ✓ | ✓ | ✓ | ✓ |
| 8 | Covers, belt guard, and doors securely in place | ✓ | ✓ | ✓ | ✓ | ✓ |
| 9 | Wheel chocks, mounting, and tow hitch secure (portable units) | ✓ | ✓ | ✓ | ✓ | ✓ |
| 10 | Repairs to last defect (X) completed | ✓ | ✓ | ✓ | ✓ | ✓ |
| 11 | ■ Before start: oil, fuel, and cooling | |||||
| 12 | Compressor oil level between the marks | ✓ | ✓ | ✓ | ✓ | ✓ |
| 13 | Oil not dirty, milky, or discolored; no oil leaks | ✓ | ✓ | ✓ | ✓ | ✓ |
| 14 | Engine oil and fuel levels in range, no leaks (engine units) | ✓ | ✓ | ✓ | ✓ | ✓ |
| 15 | Coolant level; radiator not clogged or leaking (water-cooled) | ✓ | ✓ | ✓ | ✓ | ✓ |
| 16 | V-belt tension, wear, and cracks | ✓ | ✓ | X | ✓ | ✓ |
| 17 | ■ Before start: air system and receiver | |||||
| 18 | Air receiver (tank) drained | ✓ | ✓ | ✓ | ✓ | ✓ |
| 19 | Pressure gauge and thermometer read zero; glass not cracked | ✓ | ✓ | ✓ | ✓ | ✓ |
| 20 | Safety valve: not damaged or stuck; seal intact | ✓ | ✓ | ✓ | ✓ | ✓ |
| 21 | Air hoses and couplings: no cracks or wear; safety pins or whip checks in place | ✓ | ✓ | ✓ | X | ✓ |
| 22 | Tank and piping: no rust, deformation, dents, or water leaks | ✓ | ✓ | ✓ | ✓ | ✓ |
| 23 | Discharge (service) valve in the start-up position the manual specifies | ✓ | ✓ | ✓ | ✓ | ✓ |
| 24 | ■ Before start: electrical (electric units) | |||||
| 25 | Power cord, plug, and terminals: no damage or signs of overheating | ✓ | ✓ | ✓ | ✓ | ✓ |
| 26 | Ground (earth) connection secure | ✓ | ✓ | ✓ | ✓ | ✓ |
| 27 | Ground-fault breaker trips with the test button | ✓ | ✓ | ✓ | ✓ | ✓ |
| 28 | ■ Right after start-up | |||||
| 29 | No abnormal noise, vibration, smell, or smoke | ✓ | ✓ | ✓ | ✓ | ✓ |
| 30 | Pressure builds to set point and unloader works | ✓ | ✓ | ✓ | ✓ | ✓ |
| 31 | Warning lights off; no air, oil, fuel, or coolant leaks | ✓ | ✓ | ✓ | ✓ | ✓ |
| 32 | Inspected by (initials) | JD | JD | MS | JD | JD |
| 33 | Supervisor check (initials) | |||||
| 34 | ||||||
| 35 | Defect record (fill in every time you mark a defect. Fill left to right in the order things happened. "Condition found" is written by the person who found it, "Corrective action" by the person who fixed it, "Verified by" by the person who checked it.) | |||||
| 36 | Date / item | Condition found | ||||
| 37 | 9/3 V-belt | Fine cracks in the belt. Tension within spec, but due for replacement | ||||
| 38 | 9/4 Air hose coupling | One coupling missing its safety pin | ||||
| 39 | 9/5 V-belt (follow-up) | New belt seated in; re-tensioned | ||||
| 40 | ||||||
| 41 | ||||||
| 42 | Reviewed by (supervisor) | |||||
| 43 | ||||||
| 44 | ||||||
| 45 | Notice: This is a general-purpose inspection record. It is not an official government form and does not by itself show compliance with OSHA or any other regulation or standard. | |||||
| 46 | Related regulations and standards (for reference): OSHA 29 CFR 1910.169(b)(2): the drain valve on an air receiver must be opened and the receiver completely drained often enough to prevent excessive liquid from building up. OSHA does not set a daily or monthly compressor inspection form; follow the manufacturer's maintenance schedule and any state boiler and pressure vessel rules that apply to your receiver. | |||||
| 47 | Which inspections you need, how often, and how long to keep records depend on your equipment, industry, and location. Check the regulations that apply to you, the manufacturer's instructions, and a qualified person. | |||||
| 48 | Worker Library accepts no liability for any loss arising from the use of this template. Regulations change; check the source page for the latest version. | |||||
| 49 | Worker Library https://worker-library.com/templates/air-compressor-inspection-checklist/ Updated 2026-10-21 | |||||
This preview shows the first 6 of 33 columns. The downloaded file contains everything.
| A | B | C | D | E | F | |
|---|---|---|---|---|---|---|
| 1 | Air Compressor Inspection Checklist (Pre-Start and Periodic) [SAMPLE] | |||||
| 2 | Unit ID | C-01 | Type / power | Rotary screw, 30 hp | ||
| 3 | Location | Utility room, Plant 2 | Date | 08/05/2026 | ||
| 4 | ||||||
| 5 | No. | System | Inspection item | Reading / notes | Result | Findings / action taken |
| 6 | 1 | Running condition | Discharge pressure within the set range | Pass | ||
| 7 | 2 | Discharge temperature within the normal range | Pass | |||
| 8 | 3 | No abnormal noise or vibration | Fail | Slight vibration at the motor mount. Bolts re-torqued; recheck next week. | ||
| 9 | 4 | Total run hours and load percentage recorded | Pass | |||
| 10 | 5 | Starts and stops normally | Pass | |||
| 11 | 6 | Lubricating oil | Oil level between the high and low marks | Pass | ||
| 12 | 7 | Oil not dirty, milky, or discolored | Pass | |||
| 13 | 8 | No oil leaks | Pass | |||
| 14 | 9 | Oil change due date not close | Pass | |||
| 15 | 10 | Drains and air system | Condensate drains discharging | Pass | ||
| 16 | 11 | Drain trap not clogged | Pass | |||
| 17 | 12 | Air filter not clogged (differential pressure) | Pass | |||
| 18 | 13 | No air leaks at piping or fittings | Pass | |||
| 19 | 14 | Air receiver (tank) drained | Pass | |||
| 20 | 15 | Cooling | Cooling fan turning normally | Pass | ||
| 21 | 16 | No dust buildup on cooling fins or oil cooler | Pass | |||
| 22 | 17 | Cooling water flow and temperature correct (water-cooled) | Pass | |||
| 23 | 18 | Safety devices and electrical | Safety valve operation checked (set pressure) | Pass | ||
| 24 | 19 | Pressure switch and unloader work | Pass | |||
| 25 | 20 | Emergency stop button works | Pass | |||
| 26 | 21 | Wiring and terminals: no damage or signs of overheating | Pass | |||
| 27 | 22 | Ground wire securely connected | Pass | |||
| 28 | 23 | Air receiver (if equipped) | Receiver exterior: no rust, deformation, or damage | Pass | ||
| 29 | 24 | Receiver nameplate (maximum allowable working pressure) legible | Pass | |||
| 30 | 25 | Next receiver inspection date checked (if your state, insurer, or manufacturer sets one) | Pass | |||
| 31 | 26 | Receiver inspection records on file | Pass | |||
| 32 | 27 | |||||
| 33 | 28 | |||||
| 34 | ||||||
| 35 | Defect record (fill in every time you mark a defect. Fill left to right in the order things happened. "Condition found" is written by the person who found it, "Corrective action" by the person who fixed it, "Verified by" by the person who checked it.) | |||||
| 36 | Date / condition found | Stopped? / reported to / action | Verified by / returned to service | |||
| 37 | ||||||
| 38 | ||||||
| 39 | ||||||
| 40 | ||||||
| 41 | Summary (what must be done before the next inspection, due date, person responsible) | |||||
| 42 | Air filter differential pressure is rising. Replace the filter at the 8/12 shutdown. Auto drain interval changed from every 60 to every 30 minutes. | |||||
| 43 | ||||||
| 44 | ||||||
| 45 | Inspected by | Reviewed by (supervisor) | Approved by (manager) | |||
| 46 | ||||||
| 47 | ||||||
| 48 | Notice: This is a general-purpose inspection record. It is not an official government form and does not by itself show compliance with OSHA or any other regulation or standard. | |||||
| 49 | Related regulations and standards (for reference): OSHA 29 CFR 1910.169(b)(2): the drain valve on an air receiver must be opened and the receiver completely drained often enough to prevent excessive liquid from building up. OSHA does not set a daily or monthly compressor inspection form; follow the manufacturer's maintenance schedule and any state boiler and pressure vessel rules that apply to your receiver. | |||||
| 50 | Which inspections you need, how often, and how long to keep records depend on your equipment, industry, and location. Check the regulations that apply to you, the manufacturer's instructions, and a qualified person. | |||||
| 51 | Worker Library accepts no liability for any loss arising from the use of this template. Regulations change; check the source page for the latest version. | |||||
| 52 | Worker Library https://worker-library.com/templates/air-compressor-inspection-checklist/ Updated 2026-10-21 | |||||
| A | B | C | D | E | F | |
|---|---|---|---|---|---|---|
| 1 | Air Compressor Inspection Checklist (Pre-Start and Periodic) | |||||
| 2 | Unit | Unit ID | ||||
| 3 | ||||||
| 4 | Inspection item | 1 | 2 | 3 | 4 | 5 |
| 5 | ■ Before start: area and unit | |||||
| 6 | Air intake, exhaust, and cooling air path not blocked | |||||
| 7 | No flammables, oil, or tools left around the unit | |||||
| 8 | Covers, belt guard, and doors securely in place | |||||
| 9 | Wheel chocks, mounting, and tow hitch secure (portable units) | |||||
| 10 | Repairs to last defect (X) completed | |||||
| 11 | ■ Before start: oil, fuel, and cooling | |||||
| 12 | Compressor oil level between the marks | |||||
| 13 | Oil not dirty, milky, or discolored; no oil leaks | |||||
| 14 | Engine oil and fuel levels in range, no leaks (engine units) | |||||
| 15 | Coolant level; radiator not clogged or leaking (water-cooled) | |||||
| 16 | V-belt tension, wear, and cracks | |||||
| 17 | ■ Before start: air system and receiver | |||||
| 18 | Air receiver (tank) drained | |||||
| 19 | Pressure gauge and thermometer read zero; glass not cracked | |||||
| 20 | Safety valve: not damaged or stuck; seal intact | |||||
| 21 | Air hoses and couplings: no cracks or wear; safety pins or whip checks in place | |||||
| 22 | Tank and piping: no rust, deformation, dents, or water leaks | |||||
| 23 | Discharge (service) valve in the start-up position the manual specifies | |||||
| 24 | ■ Before start: electrical (electric units) | |||||
| 25 | Power cord, plug, and terminals: no damage or signs of overheating | |||||
| 26 | Ground (earth) connection secure | |||||
| 27 | Ground-fault breaker trips with the test button | |||||
| 28 | ■ Right after start-up | |||||
| 29 | No abnormal noise, vibration, smell, or smoke | |||||
| 30 | Pressure builds to set point and unloader works | |||||
| 31 | Warning lights off; no air, oil, fuel, or coolant leaks | |||||
| 32 | Inspected by (initials) | |||||
| 33 | Supervisor check (initials) | |||||
| 34 | ||||||
| 35 | Defect record (fill in every time you mark a defect. Fill left to right in the order things happened. "Condition found" is written by the person who found it, "Corrective action" by the person who fixed it, "Verified by" by the person who checked it.) | |||||
| 36 | Date / item | Condition found | ||||
| 37 | ||||||
| 38 | ||||||
| 39 | ||||||
| 40 | ||||||
| 41 | Reviewed by (supervisor) | |||||
| 42 | ||||||
| 43 | ||||||
| 44 | Notice: This is a general-purpose inspection record. It is not an official government form and does not by itself show compliance with OSHA or any other regulation or standard. | |||||
| 45 | Related regulations and standards (for reference): OSHA 29 CFR 1910.169(b)(2): the drain valve on an air receiver must be opened and the receiver completely drained often enough to prevent excessive liquid from building up. OSHA does not set a daily or monthly compressor inspection form; follow the manufacturer's maintenance schedule and any state boiler and pressure vessel rules that apply to your receiver. | |||||
| 46 | Which inspections you need, how often, and how long to keep records depend on your equipment, industry, and location. Check the regulations that apply to you, the manufacturer's instructions, and a qualified person. | |||||
| 47 | Worker Library accepts no liability for any loss arising from the use of this template. Regulations change; check the source page for the latest version. | |||||
| 48 | Worker Library https://worker-library.com/templates/air-compressor-inspection-checklist/ Updated 2026-10-21 | |||||
This preview shows the first 6 of 33 columns. The downloaded file contains everything.
| A | B | C | D | E | F | |
|---|---|---|---|---|---|---|
| 1 | Air Compressor Inspection Checklist (Pre-Start and Periodic) | |||||
| 2 | Unit ID | Type / power | ||||
| 3 | Location | Date | ||||
| 4 | ||||||
| 5 | No. | System | Inspection item | Reading / notes | Result | Findings / action taken |
| 6 | 1 | Running condition | Discharge pressure within the set range | |||
| 7 | 2 | Discharge temperature within the normal range | ||||
| 8 | 3 | No abnormal noise or vibration | ||||
| 9 | 4 | Total run hours and load percentage recorded | ||||
| 10 | 5 | Starts and stops normally | ||||
| 11 | 6 | Lubricating oil | Oil level between the high and low marks | |||
| 12 | 7 | Oil not dirty, milky, or discolored | ||||
| 13 | 8 | No oil leaks | ||||
| 14 | 9 | Oil change due date not close | ||||
| 15 | 10 | Drains and air system | Condensate drains discharging | |||
| 16 | 11 | Drain trap not clogged | ||||
| 17 | 12 | Air filter not clogged (differential pressure) | ||||
| 18 | 13 | No air leaks at piping or fittings | ||||
| 19 | 14 | Air receiver (tank) drained | ||||
| 20 | 15 | Cooling | Cooling fan turning normally | |||
| 21 | 16 | No dust buildup on cooling fins or oil cooler | ||||
| 22 | 17 | Cooling water flow and temperature correct (water-cooled) | ||||
| 23 | 18 | Safety devices and electrical | Safety valve operation checked (set pressure) | |||
| 24 | 19 | Pressure switch and unloader work | ||||
| 25 | 20 | Emergency stop button works | ||||
| 26 | 21 | Wiring and terminals: no damage or signs of overheating | ||||
| 27 | 22 | Ground wire securely connected | ||||
| 28 | 23 | Air receiver (if equipped) | Receiver exterior: no rust, deformation, or damage | |||
| 29 | 24 | Receiver nameplate (maximum allowable working pressure) legible | ||||
| 30 | 25 | Next receiver inspection date checked (if your state, insurer, or manufacturer sets one) | ||||
| 31 | 26 | Receiver inspection records on file | ||||
| 32 | 27 | |||||
| 33 | 28 | |||||
| 34 | ||||||
| 35 | Defect record (fill in every time you mark a defect. Fill left to right in the order things happened. "Condition found" is written by the person who found it, "Corrective action" by the person who fixed it, "Verified by" by the person who checked it.) | |||||
| 36 | Date / condition found | Stopped? / reported to / action | Verified by / returned to service | |||
| 37 | ||||||
| 38 | ||||||
| 39 | ||||||
| 40 | ||||||
| 41 | Summary (what must be done before the next inspection, due date, person responsible) | |||||
| 42 | ||||||
| 43 | ||||||
| 44 | ||||||
| 45 | Inspected by | Reviewed by (supervisor) | Approved by (manager) | |||
| 46 | ||||||
| 47 | ||||||
| 48 | Notice: This is a general-purpose inspection record. It is not an official government form and does not by itself show compliance with OSHA or any other regulation or standard. | |||||
| 49 | Related regulations and standards (for reference): OSHA 29 CFR 1910.169(b)(2): the drain valve on an air receiver must be opened and the receiver completely drained often enough to prevent excessive liquid from building up. OSHA does not set a daily or monthly compressor inspection form; follow the manufacturer's maintenance schedule and any state boiler and pressure vessel rules that apply to your receiver. | |||||
| 50 | Which inspections you need, how often, and how long to keep records depend on your equipment, industry, and location. Check the regulations that apply to you, the manufacturer's instructions, and a qualified person. | |||||
| 51 | Worker Library accepts no liability for any loss arising from the use of this template. Regulations change; check the source page for the latest version. | |||||
| 52 | Worker Library https://worker-library.com/templates/air-compressor-inspection-checklist/ Updated 2026-10-21 | |||||
Cells marked ▼ have a drop-down list. Lightly shaded rows are where you write.
File details
| Format | Excel (.xlsx) |
|---|---|
| Works with | Microsoft Excel 2016 or later, Excel for Microsoft 365, Google Sheets, LibreOffice Calc |
| Paper | Print areas set for US Letter |
| Sheets | Instructions / Pre-Start (Daily) / Inspection Checklist / Sample - Pre-Start / Sample - Inspection / Print - Pre-Start / Print - Inspection |
| Macros | None |
| File size | About 34 KB |
| Updated | 2026-10-21 |
How to use the air compressor inspection checklist
- Use one Pre-Start sheet per compressor per month. Fill in the unit, ID, and type first.
- Delete the rows marked (engine units), (water-cooled), or (electric units) that do not apply. The list gets shorter and fits on one printed page.
- Each morning before start-up, pick ✓, X, or N/A for each check. Drain the receiver as part of the check.
- If any item is X, do not start the unit. Write what happened, who you told, and what was done in the defect record.
- Maintenance fills in the Inspection Checklist on its schedule and records readings such as pressure, temperature, and run hours.
Adapting it to your site
- If you run only electric or only engine units, delete the rows for the other type.
- For several compressors, copy the sheet once per unit.
- Record discharge pressure, oil temperature, and run hours as numbers to see trends. Clear the data validation on those cells to type numbers.
- Decide whether the tank is drained before start-up or after shutdown, and write that on the sheet so everyone does it the same way.
Before you use it
Please read
- OSHA asks that the drain valve on an air receiver be opened and the receiver completely drained often enough to prevent excessive liquid from building up (29 CFR 1910.169(b)(2)). This checklist is a way to record that; check the current rule.
- This is a general template, not an official OSHA form, and it does not replace any inspection your state or insurer requires for pressure vessels.
- Air receivers may fall under state boiler and pressure vessel rules. Check with your state program or insurer whether your receiver needs a periodic inspection.
- Never adjust, plug, or bypass a safety valve. Release pressure and lock out the unit before maintenance.
- This template is provided as-is for reference. Worker Library is not liable for any loss arising from its use. Regulations change, so check the update date on this page.
Air Compressor Inspection Checklist FAQ
How often should an air compressor be inspected?
Many shops do a short check before the first start each day and a fuller inspection monthly, with oil, filter, and belt changes on the manufacturer's schedule. OSHA does not set a daily compressor checklist, but it does ask that air receivers be drained often enough to keep liquid from building up (29 CFR 1910.169(b)(2)).
How often should I drain the air compressor tank?
Often enough that water does not build up in it. Many shops drain manual tanks daily, before start-up or after shutdown. If you have an automatic drain, still check that it is actually discharging.
What should an air compressor inspection checklist include?
Oil level and condition, belts and guards, the tank drain, gauges, the safety valve, hoses and couplings, air leaks, cooling, electrical connections, and a check that the unit builds pressure and unloads normally. This template has 22 pre-start checks and 26 periodic checks.
Does my air receiver need a separate inspection?
It may. Many states regulate pressure vessels and some require periodic inspection of air receivers. Check with your state boiler and pressure vessel program or your insurer.
Can I use one sheet for electric and diesel compressors?
Yes, but use one sheet per unit and delete the rows that do not apply to it. Rows that apply to only one type are labeled.