Proper maintenance is critical to ensuring the longevity and efficiency of スクリューエアコンプレッサー. Regular inspections and upkeep help prevent unexpected breakdowns, reduce energy consumption, and maintain safe operation. This article outlines the primary maintenance procedures required for screw air compressors, including detailed steps, component care, and operational checks.
✅ Recommended Read: Air Compressor Maintenance and Troubleshooting Guide
🔧 1. Electrical System Check: Connections and Insulation
Inspect all electrical connections, including the main circuit, control circuit, and sensor signal lines. Due to vibration during operation, terminals can loosen over time, leading to:
- Startup failures
- Safety protection loss
- Arc short-circuits
- Electric shocks
Maintenance Tip:
- Use a clamp meter to check current balance.
- Utilize an infrared thermometer to scan terminal temperatures.
- Physically test wire firmness—tighten any loose connections.
- Use a megohmmeter to check motor insulation (>500 MΩ). If below standard, dry the motor or service it.
⚙️ 2. Lubricating the Motor Bearings
To ensure motor bearing longevity, inject the correct type of grease into the front and rear motor ends regularly. Always refer to the compressor manufacturer’s specifications for the proper lubricant.
🧼 3. Cleaning the Inlet Unload Valve and Air Filter Element
Disassembly Steps:
- Remove the soft hose connecting the unload valve and air filter.
- Disconnect air pipes linked to the valve.
- Remove the solenoid coil and valve mounting bolts.
- Place all parts on clean, non-contaminated surfaces.
Cleaning Process:
Use safe solvents like soapy water or diesel to clean components. Avoid corrosive agents. Once clean, lubricate sealing rings and moving parts with light compressor oil before reassembly.
🛑 Avoid oil or water when cleaning the filter element. If it’s damaged or heavily clogged, replace it.
💨 4. Cleaning the Minimum Pressure Valve
This valve maintains system pressure during startup. Disassemble and clean similarly to the unload valve. If equipped with a U-seal, be sure to install it in the correct orientation during reassembly.
🔁 5. Cleaning the Oil Return Check Valve
This valve ensures correct oil return to the compressor. Disassemble the valve body to clean the spring, steel ball, seat, and internal mesh filter (if present). Use solvent and reassemble in reverse order.
🌡️ 6. Cleaning the Thermostatic Valve
This valve controls oil temperature. Disassemble the cap using a suitable nut and circlip pliers. Clean all internal components and reassemble after drying.
❄️ 7. Cleaning the Cooler
If the oil cooler is clogged or ineffective:
- Remove the cooler and open the end caps.
- Use a special brush or soft tool to remove scale deposits.
- If necessary, soak in cleaning solution and flush using a reverse circulation pump.
- Rinse with clean water, dry with air or dehydrate with oil.
- Reinstall the oil pipes.
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💧 8. Cleaning the Water Separator
について water-air separator works using centrifugal force to remove moisture. Disassemble the top cover and clean internal parts by soaking in a safe solvent.
✅ 9. Final System Check and Reassembly
Once all components are clean and dry:
- Reinstall every part according to the correct sequence.
- Reconfirm the tightness of each connection.
- Remove tools or debris left inside the system.
- Start the compressor and verify all operational parameters.
📘 Conclusion
Primary maintenance is the foundation of reliable screw air compressor operation. Regular cleaning, lubrication, and inspection of key components will extend the lifespan of your equipment and ensure optimal energy performance.
Need help scheduling routine maintenance? Contact our experts today at Baldor Air.