What must be checked before starting a fan?

Prior to starting a fan, it's essential to ensure that various parameters are checked, which includes alignment and lubrication. This is crucial for several reasons. Proper alignment ensures that the fan operates smoothly and efficiently, minimizing vibrations that could lead to mechanical failures or damage over time. If misaligned, the fan may create excessive wear on bearings and other components.

Lubrication is also vital to ensure that moving parts operate smoothly and reduce friction, which can lead to overheating and premature wear. Inadequate lubrication can result in increased energy consumption and a higher likelihood of mechanical failure. Additionally, inspecting these elements before operation can help in identifying potential issues that could cause downtime or safety hazards during fan operation.

Other parameters that might be included in this checklist are the physical condition of the blades, ensuring that they are free from damage and obstructions, and verifying that electrical connections are secure and functioning properly. However, the option that encapsulates the most critical aspects necessary to ensure safe and efficient operation is the one that includes alignment and lubrication along with the broader scope of initial checks.