Winkhaus genuine gearbox with a split spindle function and available with a 35mm backset.
Winkhaus cases are held on by pin rivets which are on the side of the case(1 top 1 bottom) - to remove simply knock the pins out with a punch, the originals can usually be re-used however we do sell replacement pin rivets should you require our part number is 2241553
Operation: Lift lever or split spindle
Latch reversal: Push in latch and a screw will appear in the back of the lockcase. Undo the screw to 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 push the pin to the opposite side to reverse the function.
Winkhaus cases are held on by pin rivets which are on the side of the case(1 top 1 bottom) - to remove simply knock the pins out with a punch, the originals can usually be re-used however we do sell replacement pin rivets should you require our part number is 2241553
