Door lock installation steps

Cut out the plan of the installation drawing and stick it on the appropriate height of the door (the center of the safety hole is about 1 m from the ground). According to the left and right opening of the door, adjust the inclined plane of the oblique tongue to the closed door, then put the lock body into the lock body hole and fasten it with self-tapping screws.

Fixed lock body

Insert the lock body into the pre-opened slot, fix the lock body with screws, insert the square core into the square hole of the lock body, then insert the square holes of the front and rear panels into the square core, screw in the two fastening screws on the inner panel (temporarily not tightened), insert the lock core through the lock core hole from the inside out, fasten the lock core with lock core fixing screws, and then tighten the two fastening screws on the inner panel.

Install the buckle box and buckle plate.

Cut out the buckle box hole and the gusset plate support socket at the corresponding position of the door frame, install the buckle box and gusset plate, and fasten them with self-tapping screws so that the lock tongue can expand and contract freely.