What should not be done in severe cold weather regarding metal parts of the machine?

Touching metal parts of a machine with bare hands in severe cold weather poses significant risks due to the potential for frostbite or skin injury. Cold metal can conduct the temperature from the environment, leading to immediate heat loss from the skin. The sensation of touching a cold surface can become extremely painful, and skin can stick to the metal, causing additional injury upon removal.

In contrast, covering metal parts with insulating material and using heavy gloves are both safe practices that can help protect both the equipment and the operator. Leaving metal components exposed increases the risk of weather-related damage and potential safety hazards. These considerations underscore the importance of appropriate personal protective equipment and handling precautions in extreme weather conditions.