Question

operating a tubular sectioned axle 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 be sure of, before removing the lock on the jack stand?
that you have one hand free to support the vehicle weight.
that there is no load on the jack stand.
that the vehicle is supported entirely on the jack stand.

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." This implies that there should be no load on the jack stand before removing the lock.

Answer:

That there is no load on the jack stand.