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4. Grease (supplied) both sides of the gasket 1 and the inner side of the spacer. Place the
gasket 1 onto the spacer.
5. Clean the flange side of the gate valve, and place it on the gasket 1. The scale side of the
gate valve should be up.
6. Fix stud bolts with washers and bolts loosely.
7. Keep seachest cap and shaft assembly free of dirt and dust.
8. Grease O-ring (P170) and seachest cap lightly, and attach O-ring (P170) and gasket 2 to
the bottom of seachest cap.
O-ring (P170) and gasket 2 are attached by adhesion of grease.
9. Place the assembly made at step 8 on the gate valve.
10. Fix the assembly with bolts, nuts and washers loosely.
11. Unscrew nuts from flange 2, and confirm that shaft can be moved up and down smoothly by
hand.
You will feel some resistance because of the O-ring (P135). (See the illustration on the previous
page.)
Flange 2
Nut
Washer
12. Fasten the gate valve with bolts, nuts and washers above and below.
NOTE) When installing a transducer, do it before step 7 or after removing the seachest cap
and the shaft assembly.