NORTHROP GRUMMAN Sperry Marine NAVIGAT X MK 2, Assembly Instructions Manual

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056341 Rev. AA NAVIGAT X Mk 2
Page 4-4 4: Preventive Maintenance
5) Gently turn the bellows, until the largest
of the three coupling seats in the bayo-
net collar points towards the front of the
housing. the seat is marked by a green
dot on the collar.
6) Put both hands around the container and
lift it up, so that the coupling tongues
disengage from their seats in the bayo-
net.
7) While supporting the container with both
palms, put the thumbs on the rim of the
collar and turn the collar to the left.
8) Gently lower the container. The cou-
pling tongues slide down in the grooves
of the bayonet and the container is re-
leased from the collar.
9) Carefully take the container out of the
housing and carry it to its storage loca-
tion.
10) At the storage location, carefully place the container into its original trans-
port box. Clearly label the box and take all precautions necessary to pre-
vent it from being moved, tilted or subjected to shock.
11) At the gyrocompass, unplug the supply power connector, TB 1, to make
sure power cannot be accidentally applied while the gyrosphere container
is not installed.
12) Put the door in front of the housing and connect the grounding strap.
13) Fit the door back on the housing and tighten the retaining screws.