The locking handle seems to be wearing out. The latch and locking mechanism is OK, just the lever to lock the door is getting hard to unlock the door
Casey from SWISCO responded:
October 25, 2022
Hello,
Take a look and compare the specifications of the 82-087 handle set, 82-260 mortise lock, and 82-249 keeper to your original hardware. We also carry the 82-107 thumb latch but please note that it is only available in white. Thanks for posting!