What is the usual manufacturing cost of oil-injected air compressors?
A. higher
B. lower
C. Same as oil-free air compressor
D. unable to determine
Answer: B
Analysis: The manufacturing cost of oil-injected air compressors is usually low and the initial investment is small, making it suitable for companies with limited budgets.
A. Poor after-sales service B. The after-sales service network is underdeveloped C. Provide comprehensive after-sales service D. After-sales service is limited to large cities Answer: C. Provide comprehensive after-sales service
A. Improve the purity of compressed air B. Reduce equipment noise C. Cooling and lubricating parts D. Increase equipment life Answer: C Analysis: The water-lubricated design of oil-free air compressors is mainly used to cool and lubricate compressor components to ensure…
Answer: Check for loose parts, worn components, or improper lubrication, and repair as necessary.
Answer: First, check the fault indicator lights and alarm messages, and troubleshoot and handle according to the prompts. If the problem cannot be solved independently, contact professional maintenance personnel promptly.
Answer: Common faults include high temperature, low pressure, and motor overload.