Abstract: A device and a method for checking or adjusting a depth of engagement of a locked elevator door lock, wherein the door lock has a catch engaged with a stop, can be fixed to the catch and have a region for supporting the stop. Alternatively, the device can be fixed to the stop and have a region for supporting the catch. The device can be fixed to the catch or to the stop such that a defined depth of engagement is formed when the stop or the catch is resting on the device support region.

Abstract: The invention relates to a lift installation with a cage (1) and a cage roof (2) and at least one cage roof part (3), which is suspended indirectly or directly at the cage roof frame (2) by means of at least one retaining element (4) and covers an opening of the cage roof (2). The retaining element (4) exerts on the cage roof part (3) a magnetic force which is at least equal to the weight force of the cage roof part (3).