Atlas Copco Hour Maintenance Kit Replacement – 2906030500

The 2906030500 is a scheduled 8,000-hour maintenance kit for Atlas Copco MD100–400 air-treatment/dryer equipment. Its purpose is to replace critical seals, gaskets, drain-valve components, demister and strainer components that can wear or deteriorate during extended operation. Atlas Copco’s official listing confirms the kit and its 1.14 kg weight.

During operation, compressed air passes through the MD dryer/air-treatment system. Moisture is separated and managed while the treatment system maintains the required air quality. The maintenance kit restores sealing and internal service components so the equipment can continue operating efficiently.

Working Process

1. Compressed Air Entry – Compressed air enters the MD air-treatment/dryer system.
2. Cooling & Moisture Separation – Air conditions allow moisture to be separated from the compressed-air stream.
3. Air Treatment – Internal components manage moisture and contaminants.
4. Demisting – The demister assists in separating liquid droplets from the airflow.
5. Condensate Drainage – The drain-valve system removes collected condensate.
6. Sealing – Gaskets, O-rings, sealing rings and seal lips maintain pressure-tight connections.
7. Flow Control – The strainer helps protect the internal circuit from unwanted particles.
8. Treated Air Delivery – Conditioned compressed air continues to the downstream system.
9. Scheduled Maintenance – At the 8,000-hour service point, worn components are replaced with the 2906030500 kit.

Main Functions

• Provides components for 8,000-hour scheduled maintenance.
• Maintains proper air-treatment performance.
• Restores sealing performance.
• Supports condensate removal.
• Maintains demister performance.
• Helps protect internal components with the replacement strainer.
• Reduces air and condensate leakage.
• Supports reliable dryer operation.

Kit Components

Atlas Copco’s official parts listing specifies:

Possible Failure Symptoms

If these scheduled components become worn or are not replaced, the equipment may experience:

• Air leakage.
• Condensate leakage.
• Poor moisture separation.
• Increased pressure drop.
• Drain-valve malfunction.
• Reduced dryer performance.
• Contamination/moisture carryover.
• Increased maintenance requirements.
• Unexpected equipment downtime.

Maintenance Procedure

1. Shut down the equipment according to the applicable Atlas Copco service procedure.
2. Isolate electrical and compressed-air supplies.
3. Fully depressurize the system.
4. Allow the equipment to cool.
5. Drain accumulated condensate.
6. Open the required service sections.
7. Remove worn gaskets, O-rings, seals, demister and strainer.
8. Inspect internal components for contamination, corrosion or damage.
9. Clean the mating and sealing surfaces.
10. Install the replacement components from 2906030500.
11. Replace the drain-valve components as applicable.
12. Install the demister and strainer correctly.
13. Ensure all O-rings and seals are properly seated.
14. Reassemble the equipment.
15. Restore the compressed-air supply.
16. Restart the system.
17. Check for air/condensate leakage.
18. Verify correct drainage and air-treatment performance.

Service Benefits

Using the 2906030500 8,000H Maintenance Kit helps:

• Restore dryer performance.
• Maintain effective moisture separation.
• Maintain reliable condensate drainage.
• Restore sealing performance.
• Reduce compressed-air leakage.
• Protect downstream equipment.
• Improve reliability.
• Reduce unplanned downtime.

Technical Summary

Recommended catalog title:
Atlas Copco 2906030500 – MD100–400 8,000-Hour Maintenance Kit for ZR/ZT Oil-Free Compressor Air Treatment, 2906-0305-00.

Atlas Copco’s official catalog confirms the MD100–400 8000H Maintenance Kit and its component list.

Compatibility note: Confirm the compressor/dryer model and serial number before ordering. Atlas Copco recommends using the machine’s Spare Parts Book/Power Connect to verify the exact part.