－2－
Fig.-1
[B] Piping
1 Piping for water supply
Confirm that the supply water pressure is the draft pressure plus 0.01～0.03 MPa
in close vicinity to the seal.
2 Piping for air supply
(1)The air piping from the 0.6～1.0MPa (reduced) air source should be provided with
an escape valve.
(2)Being careful not to twist the anchor pin when connecting or disconnecting tube
fitting for air pipe.
[C] Inspection
1 Before launching
Supply an air pressure of 0.3～0.6 MPa to the inflatable ring, and apply twice
as great a water pressure as the draft pressure from the water supply line to verify
that water is continuously no leaking from the seal ring, and that the air pressure
drop is within 10 % per hour.
2 After launching
Check to see that water is continuously no leaking from the seal ring.
Stop the propeller shaft. Close all water supply line fully. Supply an air pressure
to the inflatable ring. Then open the plug ③ and check to verify that water is
continuously no leaking. (See Fig.-2)
Disconnect the air supply line normally in order to prevent a
inflatable ring from breaking.
BE CAREFUL OVER APPLYING GREASE.
Remove grease from the
sliding surface COMPLETELY
Apply a thin coat of grease
Must not too bend rubber hose.(In the case of rubber hose connection)
Supply water during rigging or long time anchorage for protecting
the inside of piping from marine organism growing.
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