Atlas Copco XAS 185 Shutdown Checklist: 7 Must-Do Steps to Protect Your Compressor

Atlas Copco XAS 185 Shutdown Checklist: What to Inspect Every Time You Stop

When the workday ends, proper shutdown procedures are crucial for protecting your Atlas Copco XAS 185 portable air compressor. Overlooking these quick checks can lead to unexpected wear, oil leaks, or even major failures later on. Here’s a step-by-step checklist to follow every time you stop the machine.

1. Check engine and compressor oil levels

Running with low oil can cause serious internal damage, while overfilling can lead to excessive oil carryover.

  • Suggested action: With the compressor on level ground and stopped, check the engine oil using the dipstick and the compressor oil using the sight glass. Top up if needed, then run briefly and recheck to confirm correct levels.
  • For instance: If you're topping off the compressor oil, you might need something like our Atlas Copco oil replacement options, depending on your model and environment.

2. Inspect coolant level

Low coolant can lead to overheating and potential engine damage.

  • Suggested action: Check the coolant level in the overflow bottle. Top off with the correct coolant mixture if necessary, following your manual's specifications.

3. Drain water and sediment from the fuel system

Water or debris in the fuel system can cause hard starts and poor performance.

  • Suggested action: Open the drain cock on the fuel filter/water separator until clean fuel flows out. This prevents moisture buildup inside the system.

4. Check the air filter service indicator and dust discharge valve

Dust and debris buildup can reduce airflow and cause performance issues.

  • Suggested action: Inspect the air filter indicator. If the red band is fully visible, replace the filter. Press the dust discharge valve to release any trapped dust before closing up.
  • For instance: Many Atlas Copco XAS 185 units use an air filter like the 1619279800 replacement, but always check your part number before ordering.

5. Inspect for leaks and loose connections

Leaks can lead to oil or coolant loss and create safety hazards.

  • Suggested action: Walk around the machine and check hoses, clamps, and connections for signs of leaks, wear, or looseness. Tighten or replace parts as needed.

6. Verify that the blow-down valve has operated

When stopping, the blow-down valve automatically depressurizes the air receiver.

  • Suggested action: Listen for the characteristic release of air when shutting down. This ensures safe depressurization before disconnecting hoses or performing maintenance.

7. Clean the exterior and clear obstructions

Dirt and debris left on or around the compressor can interfere with cooling and airflow on the next startup.

  • Suggested action: Wipe down accessible areas and clear any obstructions near air intakes and exhaust outlets.

Final thoughts

Following this simple shutdown checklist helps prevent small issues from becoming costly repairs, improves reliability, and keeps your Atlas Copco XAS 185 ready for the next job. A few extra minutes now can save hours of downtime later. 

Disclaimer: The information provided in this blog is intended for general troubleshooting guidance only and may not cover every situation or machine configuration. Always refer to your specific equipment’s manual and follow the manufacturer’s safety instructions. If you are unsure or uncomfortable performing any maintenance or repairs, consult a qualified technician. Air Compressor Services is not responsible for any injuries, damages, or losses resulting from the use of this information.