Door Locks: Description and Operation

Door locks use the fork bolt lock design which includes a safety interlock feature. The door is secured in a closed position when the door lock fork bolt engages the striker bolt. Doors can be locked from the inside by depressing the door inside locking knob. All doors can be locked from the outside by simply depressing the inside locking knob and closing the door. The front doors can also be locked by using the oval headed key.

Do not attempt repairs to correct lock discrepancies. Make corrections through replacement of lock assembly.