Atlas Copco MD100–400 8000H Maintenance Kit Replacement – 2906083600

Atlas Copco 2906083600 – MD100–400 8000H Maintenance Kit

The Atlas Copco 2906083600 (2906-0836-00) is an 8000-hour Maintenance Kit for Air Treatment Equipment, designed for compatible MD100–400 dryer systems.

The kit is used during scheduled preventive maintenance to replace important sealing, filtration and inspection components that can deteriorate during prolonged operation.

Atlas Copco lists the kit weight as approximately 200.034 g and identifies it as an 8000H Maintenance Kit for air-treatment equipment. The Atlas Copco parts catalog also lists 2906083600 as the MD100–400 8000H Maintenance Kit.

Working Process:

The MD series is used for treating compressed air and removing moisture to provide dry compressed air to the downstream network.

During normal operation, compressed air enters the dryer and passes through the applicable drying section.

Moisture is removed from the compressed-air stream by the drying process. Depending on the MD configuration, the desiccant and associated process components operate through continuous adsorption and regeneration cycles.

Over thousands of operating hours, sealing components, strainers and inspection components can deteriorate because of temperature cycling, pressure fluctuations, contamination and normal ageing.

At the 8,000-hour maintenance interval, the dryer is safely stopped, isolated and depressurized.

The applicable seals, gaskets, O-rings, sight glass and strainer supplied in the 2906083600 maintenance kit are inspected and replaced as required.

New sealing components restore leak-tight connections, while the replacement strainer helps maintain cleanliness in the applicable circuit.

The sight glass provides visual inspection of the relevant process condition and can be replaced during the scheduled service.

After reassembly, the dryer is checked for leakage and correct operation before being returned to service.

Official Kit Components:

Atlas Copco’s official product listing specifies the following components:

• Gasket Type 1, 61 × 87 × 2 – 2 pcs
• O-ring 92 × 3 – 2 pcs
• Gasket Type 1, 80 × 128 × 2 – 1 pc
• Sight Glass MD50/1800 BD & CD – 1 pc
• Strainer MD100/2500 – 1 pc
• O-ring 99.1 × 5.7 – 2 pcs
• O-ring 79.2 × 5.7 – 2 pcs

The official Atlas Copco catalog lists the complete kit weight as 200.034 g.

Main Functions:

• Supports scheduled 8,000-hour maintenance.
• Replaces aged gaskets and O-rings.
• Restores sealing performance.
• Replaces the applicable strainer.
• Provides a new sight glass for visual inspection.
• Helps prevent air leakage.
• Helps maintain cleanliness in the applicable circuit.
• Supports reliable dryer operation.
• Helps reduce unexpected downtime.

Component Functions:

The 61 × 87 × 2 gasket provides sealing between the applicable mating surfaces and prevents leakage.

The 92 × 3 O-rings provide flexible sealing around the applicable connections.

The 80 × 128 × 2 gasket maintains sealing between its corresponding mating surfaces.

The MD50/1800 BD & CD sight glass provides visual access to the relevant section, allowing the operator or technician to observe the applicable process condition.

The MD100/2500 strainer captures unwanted particles and protects downstream components from contamination.

The 99.1 × 5.7 and 79.2 × 5.7 O-rings provide additional sealing at the applicable connections.

8000-Hour Maintenance Process:

1. Service Interval Check: Confirm that the equipment has reached the applicable 8,000-hour maintenance interval.
2. Shutdown: Stop the dryer using the normal operating procedure.
3. Isolation: Isolate electrical and pneumatic energy sources.
4. Depressurization: Release all stored pressure from the applicable circuit.
5. Cooling: Allow hot components to cool to a safe service temperature.
6. Inspection: Inspect gaskets, O-rings, sight glass and strainer.
7. Disassembly: Open the applicable service connections.
8. Seal Replacement: Remove and replace the old gaskets and O-rings.
9. Strainer Replacement: Remove the existing strainer and install the replacement.
10. Sight-Glass Replacement: Replace the sight glass if required by the maintenance procedure.
11. Cleaning: Clean mating surfaces and remove contamination.
12. Reassembly: Install all replacement components correctly.
13. Inspection: Check the condition and seating of every component.
14. Leak Check: Perform the applicable pressure/leak test.
15. Restart: Return the dryer to service.
16. Performance Check: Monitor pressure, temperature, airflow and drying performance.

Importance of Preventive Maintenance:

Sealing components are exposed to pressure and temperature changes throughout the equipment’s operating life.

Over time, O-rings and gaskets may experience:

• Hardening
• Compression set
• Loss of elasticity
• Cracking
• Surface damage
• Contamination

A deteriorated seal can cause compressed-air leakage and reduce system efficiency.

The strainer can also become contaminated and restricted, potentially affecting the relevant process flow.

Replacing these components during the scheduled 8,000-hour service helps restore the equipment’s sealing and filtration condition.

Possible Problems From Delayed Maintenance:

If scheduled maintenance is delayed, possible problems include:

• Air leakage
• Reduced airflow
• Increased pressure drop
• Contaminated process circuit
• Restricted strainer
• Damaged sight glass
• Unstable dryer operation
• Reduced drying performance
• Increased maintenance requirements
• Unexpected downtime

These symptoms should be investigated carefully because similar conditions can originate from valves, piping, sensors, filters or other dryer components.

Maintenance Procedure:

Before servicing the equipment, completely stop and isolate the dryer.

Ensure all applicable pressure is safely released.

Inspect the service area for contamination and leakage.

Remove the used gaskets and O-rings carefully.

Inspect the mating surfaces for:

• Scratches
• Corrosion
• Dirt
• Damage
• Foreign material

Clean the surfaces before installing the new seals.

Install the replacement gaskets and O-rings from the 2906083600 kit.

Replace the strainer and sight glass according to the applicable Atlas Copco service instructions.

Ensure that:

• O-rings are correctly seated.
• O-rings are not twisted or damaged.
• Gaskets are correctly positioned.
• The sight glass is correctly installed.
• The strainer is correctly positioned.
• All connections are properly secured.
• No foreign material remains inside the serviced circuit.

After reassembly, perform the required leak and functional checks.

Restart the equipment and allow it to reach normal operating conditions.

Monitor:

• Operating pressure
• Airflow
• Temperature
• Dryer performance
• Leakage
• Strainer condition
• Sight-glass condition
• Overall system stability

Service Benefits:

Using the Atlas Copco 2906083600 8000H Maintenance Kit during scheduled maintenance helps:

• Restore sealing performance.
• Reduce compressed-air leakage.
• Maintain proper process flow.
• Maintain filtration/straining performance.
• Restore visual inspection capability.
• Reduce contamination-related problems.
• Support reliable air-treatment operation.
• Reduce the possibility of unexpected downtime.

Part Number: 2906083600
Alternative Number: 2906-0836-00 / 2906 0836 00
Brand: Atlas Copco
Official Description: 8000H Maintenance Kit for Air Treatment Equipment
Application: MD100–400 air-treatment/dryer equipment
Service Interval: 8,000 operating hours
Official Listed Weight: 200.034 g
Kit Type: Preventive maintenance/service kit
Primary Function: Replacement of sealing, inspection and straining components
Main Components: Gaskets, O-rings, sight glass and strainer
Main Benefits: Restored sealing, reliable process flow, improved contamination control and dependable dryer operation.

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