Final answer:
When using a tubular sectioned jack stand, prevent injury by keeping hands clear, avoid dropping the cup hard to prevent damage, and carefully remove the locking pin to ensure it doesn't break.
Step-by-step explanation:
Before lowering the cup in a tubular sectioned jack stand, it is crucial to take several safety precautions. You should ensure that your hand is not positioned between the cup and the jack stand to prevent injury. Additionally, the cup should not be dropped hard onto the jack stand as this could cause damage to the equipment. Lastly, when removing the locking pin, care should be taken to ensure that it does not break, as this is a crucial component for the stability and safety of the jack stand.