How to replace a Nightlatch cylinder

Traditional and Front Door lock style latches can have easily be replaced. The cylinder is a standard one and works for ERA/Yale or any other equivalent.

With ERA’s traditional nightlatch the screws are surface mounted on the inside these can be unscrewed and the cylinder itself pushed through the door on the outside. The new cylinder is then pushed through the hole and seated in the lock which can then be fixed back to the door. Make sure that the arm of your new cylinder is the same length as your old cylinder by hacksawing it to size. Also remember that the arm of the cylinder only needs to sit in the aperture of the lock, it does not need any pressure applying to push it in.

A front door lock is the same as a traditional nightlatch although the lock is removed by unscrewing screws that are on the latch face of the lock. The lock then will lift off and leaving the fixing plate still attached to the door. The cylinder can then be replaced in the same way as the traditional nightlatch.