Question

operating a tubular sectioned jack - stand
the locking mechanism may vary on the different types of jack - stands.
raising
move the cup upwards, until the intended height is reached. align one of the holes in the tubed section with the hole in the jack stand.
locking
the cup is locked by inserting the steel pin through the holes in the jack stand and the holes in the tubular section.
lowering
check that the vehicle is not sitting on the jack stand, before you lower the cup. hold the cup or the tubed section with one hand; use your other hand to remove the locking pin and lower the cup.
take care to not get your hand caught between axle stand and cup!
what should you take care of, before lowering the cup in a tubular sectioned jack stand?
to not get your hand caught between the cup and the jack stand.
that the cup is not dropped hard on the jack stand. this might damage it.
that the locking pin does not break when being removed.

Explanation:

The text clearly states "Check that the vehicle is not sitting on the jack stand, before you lower the cup. Hold the cup or the tubed section with one hand; use your other hand to remove the locking pin and lower the cup. Take care to not get your hand caught between axle stand and cup!". There is no mention of the cup being dropped hard on the jack - stand or the locking pin breaking.

Answer:

To not get your hand caught between the cup and the jack stand.