This Winkhaus overnight lock secures properties overnight while the replacement multipoint lock is acquired.
Operation: 1605760 - 35mm - Lift Lever or Split Spindle
Operation: 1607720 - 45mm - Lift Lever
Latch reversal: Undo the screw in the side of the lock case adjacent to the latch. Remove the latch, reverse, reinsert and replace the screw.
Nightlatch reversal: The small rectangular slot adjacent to the side of the spindle hole contains a black roll pin. Insert a flat-bladed screwdriver and roll the pin to the opposite side to reverse function.