Final answer:
The primary purpose of installing a finger guard on a sewing machine is to prevent accidents and injuries.
Step-by-step explanation:
The primary purpose of installing a finger guard on a sewing machine is to prevent accidents and injuries. A finger guard is a safety device that is designed to shield the user's fingers from the moving parts of the sewing machine. It acts as a barrier, reducing the risk of accidental contact with the needle or other sharp components.
For example, the finger guard may have a slot or opening through which the fabric passes, allowing the needle to go up and down while keeping the user's fingers protected. This is especially important for beginner sewers or young students who may not have as much experience or dexterity. By installing a finger guard, the sewing machine becomes a safer tool to use, minimizing the chances of painful accidents or needle-related injuries.