Changing/fitting base plate and foam pad (see figures A1− A2)

Unscrew the 4 screws (11) completely.

Pull the base plate away from the four pivoting feet (7).

Place the replacement pad on the four pivoting feet (7) and push the pivoting feet into the recess (8).

Position the foam pad.

Secure both parts of the pad (base plate and foam pad) in place with the screws (11).

Do not remove any hard components when changing the foam pad.