Page 96
Note:
It is necessary to use a silicone based lubricant such as Würth Silicone
Lubricant or Dow Corning 111, when installing the door gasket.
CAUTION! If insufficient lubricant is applied - replacing the
gasket will be difficult. If excess lubricant is applied, the gasket
will 'spring' out of the groove.
Place the gasket inside the groove and press it in with a finger
following the pattern above.
Once the gasket is pressed in use your finger or a smooth plastic tool
to smooth it all the way around the groove.