If the window opens from the left hand side look for the sash keeper in the bottom right corner.
How to replace window lock mechanism.
The upvc window lock below shows one of many different types.
The sash keeper is the locking mechanism that the window lock hardware fits into.
Dimension a backset dimension b mushroom height dimension c rail length dimension d rail width click on link below the long metal plate is the rail and the part in the centre of the.
A upvc window lock mechanism is the gearing part inside a window that s driven by a handle.
Lock mechanism replacement procedure is complete.
Grasp latch pull outwards slightly and rotate 180.
Compare the new operator with the old making sure they match.
Step 3 remove the two screws from the sash keeper using a flat head screwdriver.
Remove the old sash locks by drilling out the rivets that hold the locking mechanism in place.
Carefully pry up the casing so you don t damage the wood parts.
If there aren t any trim screws the casement cover is probably nailed or stapled in place.
White plastic window lock with spring loaded tilt latch 2 pack.
Take photographs of the broken sash locks and make a detailed sketch of the locks with key dimensions noted.
Latch reversal hole latch latch lock mechanism housing flat blade screwdriver up position latch so that sloped portion contacts latch receiver first.
Remove the two screws holding the window handle and remove the window handle using a wide paint scraper don t use a flat screwdriver as it will damage the frame insert it between the frame seal.
Push latch back into lock mechanism housing.
If the window opens from the right locate the sash keeper in the bottom left corner.
Slide a stiff putty knife between the window jamb and casement cover.
Apply pressure on the paint scraper to pry between the frame and the sash until a small gap appears.
Using a flat screwdriver grip the seal around the window frame and pull it out around the area of the window lock or push the seal down and out of its groove.