7
To close the housing, place the lid over the housing and align the key-hole and press down the
lever.
Turn the lever towards the wall of the housing and check the key is at lock position
Replace the lid and make sure the lever is perpendicular to the side wall of the housing. Lock the lid
by press down the lever and turn until the lever is parallel to the side wall of the housing.
After replacing and locking the lid, make a final visual inspection of the main O-ring for
contamination.
Note: If the O-ring is in good contact, a thin black line, about 0.5 to 1mm in width
should be visible,
where the O-ring is in contact with the lid. Follow this line all
the way round the edge of the seal, as a
final check that the seal is good.
After replacing the lid, make a final visual inspection of the main O-ring for contamination
