Here’s a simple maintenance schedule for the Atlas Copco GA 90 compressor:

**Daily:**
– Check oil level and top up if necessary.
– Inspect air intake filter for cleanliness.
– Monitor for unusual noises or vibrations during operation.
– Check the discharge pressure and ensure it’s within the specified range.

**Weekly:**
– Drain condensate from the air receiver.
– Inspect belts for wear and tension.
– Check for leaks around fittings and connections.
– Verify the functionality of the control panel.

**Monthly:**
– Replace the air intake filter if dirty.
– Inspect and clean the cooling system (radiator or oil cooler).
– Check the function of safety valves.
– Tighten any loose electrical connections.

**Quarterly:**
– Change compressor oil and replace oil filter.
– Inspect and replace the separator element if necessary.
– Check and clean the electrical contacts.
– Test the compressor for overall performance and efficiency.

**Annually:**
– Conduct a comprehensive inspection, including all components.
– Replace any worn or damaged parts.
– Perform a full system performance evaluation.
– Review and update maintenance logs.

Always refer to the manufacturer’s manual for specific guidelines and intervals tailored to your operating conditions.

The Atlas Copco GA 90 is a robust and reliable air compressor designed for various industrial applications. Below is a general product spec sheet for the GA 90 model:

### Atlas Copco GA 90 Air Compressor Specifications

#### General Specifications:
– **Model**: GA 90
– **Type**: Oil-injected rotary screw air compressor
– **Power**: 90 kW (125 hp)
– **Operational Pressure Range**: 7.5 to 13 bar (110 to 188 psi)
– **Air Flow**: Approximately 15.8 – 21.2 m³/min (558 – 748 cfm) depending on pressure settings
– **Noise Level**: 68 dB(A) at 1 meter distance

#### Dimensions & Weight:
– **Dimensions (L x W x H)**: Approximately 2000 mm x 1300 mm x 1400 mm (78.7” x 51.2” x 55.1”)
– **Weight**: Around 800 kg (1764 lbs)

#### Electrical Specifications:
– **Voltage**: Typically 400V (3-phase)
– **Frequency**: 50 Hz
– **Full Load Amperage**: Approximately 150 A

#### Features:
– **Energy Efficiency**: Equipped with a high-efficiency airend for reduced energy consumption.
– **Cooling System**: Integrated cooling system for optimal performance.
– **Control System**: Equipped with an advanced electronic controller for monitoring and diagnostics.
– **Maintenance**: Easy access for servicing and maintenance; designed for low maintenance costs.
– **Environmentally Friendly**: Low oil consumption and emissions.

#### Applications:
– Suitable for a variety of uses in manufacturing, automotive, textile, and food industries.

#### Options:
– Different control systems available, including fixed or variable speed options.
– Advanced filtration and dryer options can be integrated for cleaner, drier air.

### Conclusion:
The Atlas Copco GA 90 is an efficient and durable solution for industrial air compression needs. With a combination of high performance, reliability, and user-friendly features, it supports continuous operation and minimizes total cost of ownership.

For more specific configurations or further details, please refer to the official Atlas Copco documentation or contact a certified distributor.

For the Atlas Copco GA 90 air compressor, here’s a list of common parts and their typical applications. While specific part numbers may vary depending on the model year and configuration, the following components are commonly associated with the GA 90:

1. **Oil Filter** – Used to filter contaminants from the lubricant oil.
2. **Air Filter Element** – Filters intake air to protect the compressor from dust and other particles.
3. **Separator Element** – Separates oil from compressed air, ensuring minimal oil carryover.
4. **Oil Level Sight Glass** – Allows monitoring of oil levels within the compressor.
5. **Belt** – Drives the compressor pump; should be checked for wear and tension.
6. **O-Rings and Gaskets** – Used in various joints and connections to prevent leaks.
7. **Thermostatic Valve** – Controls oil temperature and flow within the system.
8. **Pressure Switch** – Monitors and controls the system pressure.
9. **Vibration Pads** – Reduce vibration and noise during operation.
10. **Cooler** – Used for cooling compressed air and oil.

For actual part numbers, it’s best to consult the specific parts manual for the GA 90 model or contact an authorized Atlas Copco dealer. This ensures you have the correct parts specific to your unit’s configuration and requirements.

Troubleshooting an Atlas Copco GA 90 air compressor involves a systematic approach to identify and resolve any issues. Here’s a step-by-step guide you can follow:

### 1. **Visual Inspection**
– **Check for Leaks:** Inspect all hoses, connections, and fittings for any visible air leaks.
– **Cleanliness:** Ensure the unit and surrounding area are clean and free from debris.
– **Condition of Components:** Look for any signs of wear or damage on belts, pulleys, and electrical connections.

### 2. **Check Power Supply**
– **Power Source:** Ensure the compressor is plugged in and the power source is functioning.
– **Electrical Connections:** Inspect the wiring for any loose connections or damage.
– **Breakers/Fuses:** Check that circuit breakers or fuses are not tripped and are functioning properly.

### 3. **Control Panel Diagnostics**
– **Indicator Lights:** Look at the control panel for any warning lights or fault codes.
– **Settings:** Ensure operational settings are correct, including pressure settings and operation modes.

### 4. **Air Intake System**
– **Air Filter:** Check the air intake filter for clogs or dirt buildup. Clean or replace as necessary.
– **Air Ducts:** Inspect the air ducts for blockages or damage that may impede airflow.

### 5. **Cooling System**
– **Cooler Condition:** Check the refrigeration cooler for cleanliness. Clean any dust or debris that may impede heat exchange.
– **Thermostat and Fans:** Ensure the cooling fan is functioning and that the thermostat is set correctly.

### 6. **Lubrication System**
– **Oil Level:** Check the oil level in the compressor; low levels can cause performance issues.
– **Oil Quality:** Inspect the oil for contamination or degradation and replace if necessary.
– **Filters:** Check the oil filter and replace it if it’s clogged.

### 7. **Air Receiver Tank**
– **Drain Valve:** Make sure the tank drain valve is not blocked and is functioning; drain any accumulated condensate.
– **Pressure Relief Valve:** Inspect the pressure relief valve for proper operation as a safety measure.

### 8. **Mechanical Components**
– **Belt Tension:** If applicable, check the tension of the drive belt and adjust/replace if necessary.
– **Compressor Pump:** Listen for unusual noises from the compressor pump that may indicate internal issues.

### 9. **Performance Checks**
– **Pressure Readings:** Use a gauge to measure the pressure output and check it against the specification provided in the manual.
– **Temperature Checks:** Measure operating temperatures of components; excessive heat can indicate problems.

### 10. **Test Run**
– After making any repairs or adjustments, run the compressor and monitor its performance. Listen for unusual sounds, watch for vibrations, and check for leaks again.

### 11. **Consult the Manual**
– Always refer to the specific service manual for the Atlas Copco GA 90 for troubleshooting tips, specifications, and manufacturer recommendations.

### 12. **Contact Support**
– If problems persist after your troubleshooting efforts, it may be best to contact Atlas Copco service support for professional assistance.

By following these steps, you can systematically identify and address issues with the Atlas Copco GA 90 compressor. It’s essential to take all necessary safety precautions while troubleshooting.