Atlas Copco GA90–315 GRLP Element Overhaul Kit Replacement – 2906018600

The Atlas Copco 2906018600 is a compressor element overhaul kit used to service and restore the internal rotating element of applicable GA90–315 compressors. The kit contains critical bearings, O-rings, gaskets, spacers, wave springs and fastening components required during a complete element overhaul.

Working Process

1. Air Compression – The compressor element draws in air and compresses it to the required pressure.
2. Rotational Support – Bearings support the rotating element shaft and maintain proper alignment.
3. Load Transfer – Bearings and internal components handle the mechanical loads generated during operation.
4. Sealing – O-rings and gaskets prevent oil/air leakage around the element assembly.
5. Continuous Operation – Bearings, spacers and springs operate under continuous mechanical and thermal loads.
6. Component Wear – Bearings and sealing components gradually wear with operating hours.
7. Overhaul – The compressor element is dismantled and inspected during major maintenance.
8. Replacement – Worn bearings, O-rings, gaskets, spacers and related components are replaced using 2906018600.
9. Reassembly – The element is rebuilt according to the applicable Atlas Copco service procedure.
10. Testing – The compressor is restarted and checked for vibration, temperature, leakage and performance.

Kit Components

The GA90–160 parts documentation identifies the following components associated with 2906 0186 00:

Main Functions

• Supports compressor element overhaul.
• Replaces worn bearings.
• Restores sealing with new O-rings and gaskets.
• Maintains correct shaft support and alignment.
• Reduces mechanical friction and vibration.
• Helps restore compressor efficiency and reliability.
• Extends the service life of the compressor element.

Typical Failure / Overhaul Indicators

An element may require overhaul when there is:

• Increased vibration.
• Abnormal bearing noise.
• Increased operating temperature.
• Reduced compressor capacity.
• Increased power consumption.
• Oil leakage.
• Bearing deterioration.
• Excessive operating hours.

Maintenance / Overhaul Procedure

1. Shut down the compressor according to the applicable Atlas Copco service procedure.
2. Isolate and lock out the electrical supply.
3. Fully depressurize the compressor.
4. Allow the equipment to cool.
5. Isolate and drain the relevant oil circuit.
6. Remove the compressor element.
7. Dismantle the element using the approved service procedure.
8. Inspect shafts, bearings, gears and sealing surfaces.
9. Clean all components and mating surfaces.
10. Replace bearings, O-rings, gaskets, spacers and springs supplied with 2906018600.
11. Install the new cap screws as specified.
12. Reassemble the compressor element.
13. Verify shaft rotation and bearing seating.
14. Reinstall the element into the compressor.
15. Restore the oil circuit.
16. Restart the compressor.
17. Check vibration, temperature, noise and leakage.
18. Verify normal compressor performance.

Technical Summary

Recommended catalog title:
Atlas Copco 2906018600 – GA90–315 GRLP Compressor Element Overhaul Kit, 2906-0186-00.

Atlas Copco’s official page identifies 2906018600 as “GA90-315 GRLP ELMT OVERHAUL KT,” while the GA parts documentation lists the associated bearing, gasket, O-ring, wave-spring and spacer components.

Compatibility note: Confirm the exact compressor model and serial number before ordering, because element overhaul kits are configuration-specific.