When is it recommended to blow down the sight glass?

Blowing down the sight glass at the start of each shift is recommended as it ensures that the glass is clear and free from any debris or buildup that may have accumulated. This process allows the operator to accurately assess the level of fluid or any other indicators that can be observed through the sight glass. By starting each shift with a clean sight glass, potential issues can be identified early, which is essential for maintaining operational safety and efficiency. This practice also helps in preventing inaccurate readings that could lead to operational problems or hazards. Regularly blowing down the sight glass contributes to effective equipment monitoring and operational reliability.