FWIW, if you are 'cycling the action" with the lever to break in the action/make it work more smoothly,, and you need to let the hammer down,....
let the hammer down by holding the hammer carefully and firmly with your thumb, pull the trigger with your finger, and *let the hammer down easy* using resistance with your thumb. Works like a champ.
Otherwise, buy some snap caps ( a "snap cap" is a dummy round that is same diameter and overall length and in the general shape of an actual loaded cartridge.
But it is actually a "dummy round" and has no actual bullet nor gunpowder in the cartridge)
Load them in the loading gate, and cycle the action, pull trigger, eject them by working the lever, just as you would when firing live ammunition.
Never point an unloaded gun , nor a loaded gun at anyone nor anything you do not wish to kill or damage.,
FWIW ..."unloaded guns" have killed lots of people