The maintenance required for the hydraulic system involves several key aspects including oil quality and filtration, lubrication, cleanliness, temperature control, and regular inspections for any abnormalities. Proper maintenance ensures the system operates efficiently and prolongs the life of the hydraulic components.
Oil Quality and Filtration: The hydraulic oil used should be either 20# mechanical oil or 32# hydraulic oil, and it must be carefully filtered before addition to the system. This ensures that the oil is free from contaminants that could damage the system. The hydraulic system filter plays a crucial role in maintaining the efficiency of the system by providing high-efficiency filtration, although it requires attention to address issues like large initial pressure drops and potential problems with pipe joints.
Lubrication: Regular lubrication of the column shaft and guide frame is essential to maintain good lubrication operation. This involves checking the lubrication between these parts and refueling as necessary to prevent wear and ensure smooth operation.
Cleanliness: All parts of the machine, especially the column shaft and guide frame, should be kept clean. Regular cleaning helps prevent the accumulation of dirt and debris, which can lead to system failure or reduced efficiency.
Temperature Control: The temperature of the hydraulic system, particularly the hot plate, should be closely monitored and controlled. This is achieved by using a rotary button (SA1) to start and stop heating automatically based on the preset temperature values. Maintaining the correct temperature is crucial for the system's performance and longevity.
Inspections and Abnormalities: Any abnormal noise from the system should be addressed immediately by stopping operation and inspecting the system. Troubleshooting should be performed to resolve any issues before resuming operation. This proactive approach helps prevent minor issues from escalating into major problems.
Regular Maintenance:
- Exhaust Line Filter: Drain and check the exhaust line filter daily to ensure proper ventilation.
- Cleaning: The oil reservoir, valve deck, and solenoid valve should be cleaned every six months to maintain system cleanliness and functionality.
- Pump Maintenance: Regularly inspect and change the oil in the roughing pump, holding pump, and booster pump. These pumps should be tested periodically to ensure they are functioning correctly, with oil levels checked and maintained at mid-sight glass level while the pump is running and the vacuum level is less than 1 torr.
Safety During Maintenance: All maintenance operations should be conducted with the power off to ensure the safety of operators and maintenance personnel. If maintenance must be performed with power on, absolute safety measures must be in place to protect everyone involved.
By adhering to these maintenance practices, the hydraulic system can operate efficiently, safely, and with minimal downtime, ensuring its reliability and longevity.
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