The frame hinge not locking on one side can be caused by the trigger release not springing back into place.
STEP 1:
To solve this, you need to reset the hinge spring on the side that is not locking correctly by;
- Removing the trigger completely (unscrew)
- Using a screwdriver to pull the white internal shuttle back far enough so the spring resets (You will hear it)
- Then check function by using a screwdriver to pull back shuttle, if working again it should auto-lock the hinge when the handle tube is lifted into place
- Replace trigger and screws, and check function again
If the above does not work, then try the below.
STEP 2:
- Remove the sunhood locator from the frame by undoing the below 2 x screws and pulling the sunhood locator away from the frame.
- Check if the hinge will now lock. If it locks, replace the sunhood locator (2 x screws)