Atlas Copco IMD400W 8000H Maintenance Kit Replacement – 2906080600

Atlas Copco 2906080600 – IMD400W 8000H Maintenance Kit

The Atlas Copco 2906080600 (2906-0806-00) IMD400W 8000H Maintenance Kit is a scheduled-service kit designed for Atlas Copco stationary oil-free compressor systems, particularly ZR-type equipment incorporating the IMD400W moisture-removal/drain system.

The kit is intended to support maintenance at approximately 8,000 operating hours or 2 years, helping restore critical wear, separation, filtration, and sealing components to their specified operating condition.

Working Process:

During normal operation of an oil-free compressor system, compressed air passes through the compressor and associated treatment/moisture-management equipment. The IMD400W system handles moisture and condensate generated during compressor operation.

As the compressor operates, components such as the demister, strainer, rotor-related inspection components, O-rings, and wearing parts are gradually exposed to pressure, moisture, contamination, temperature variations, and mechanical movement.

The 2906080600 maintenance kit provides replacement service components so that these parts can be renewed during the scheduled maintenance interval.

According to Atlas Copco’s official product listing, the kit contains:

• IMD 400 rotor inspection kit – 1
• Demister MD200-400 – 1
• O-ring – 1
• Strainer MD100/2500 – 1
• Set of wearing parts EWD330/1500C – 2

The official catalog lists the kit weight as approximately 1.69 kg.

Rotor Inspection Kit:
The rotor inspection components support inspection and servicing of the IMD400 assembly. During maintenance, the rotor and associated components are checked for abnormal wear, contamination, corrosion, or mechanical deterioration. Early detection of wear helps prevent more serious component failure.

Demister:
The demister captures fine moisture droplets and helps prevent liquid carryover into downstream areas. As moisture passes through the system, the demister promotes coalescence of small droplets so that collected liquid can be separated and removed effectively. A contaminated or saturated demister can restrict flow and reduce separation performance.

Strainer:
The strainer protects downstream components by filtering larger particles and contaminants from the flow. This reduces the possibility of debris entering sensitive valves, passages, and other components.

O-Ring:
The replacement O-ring restores sealing between mating components. Proper sealing prevents leakage and ensures that pressure and flow remain within the intended circuit.

Wearing Parts:
The supplied wearing-part sets replace components that experience gradual mechanical or operational wear. Replacing these parts during scheduled maintenance helps maintain correct operation and prevents worn components from damaging adjacent assemblies.

During servicing, the compressor system must be shut down, isolated, depressurized, and allowed to cool according to the applicable Atlas Copco safety procedure.

The IMD400W assembly should then be opened and inspected. The rotor-related components, demister, strainer, seals, and wearing components should be checked for contamination, erosion, deformation, blockage, corrosion, and excessive wear.

The old service components are replaced using the parts supplied in the 2906080600 kit. Correct installation and orientation are essential to maintain the intended air and condensate flow paths.

After maintenance, the system should be reassembled and checked for correct sealing. The compressor should then be operated and monitored for abnormal pressure drop, leakage, moisture carryover, unusual noise, or other signs of incorrect operation.

A neglected maintenance interval can allow the demister and strainer to become restricted, seals to deteriorate, and wearing components to exceed their recommended service condition. This can reduce system efficiency, increase pressure drop, cause leakage, and potentially lead to more expensive repairs.

Using the 2906080600 IMD400W 8000H Maintenance Kit during the recommended service interval helps maintain moisture-management performance, filtration, sealing, mechanical condition, and overall reliability of the compressor system.

Part Number: 2906080600
Alternative Number: 2906-0806-00 / 2906 0806 00
Brand: Atlas Copco
Part Description: IMD400W 8000H Maintenance Kit
Equipment Type: Stationary oil-free compressor / ZR system
Service Interval: Up to 8,000 operating hours or 2 years
Kit Weight: Approximately 1.69 kg
Primary Function: Scheduled maintenance and renewal of IMD400W service components
Main Components: Rotor inspection kit, demister, O-ring, strainer, and wearing-part sets
Main Benefits: Restored moisture separation, clean flow passages, reliable sealing, controlled wear, reduced maintenance risk, and dependable compressor operation.

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