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KOBELCO Total Reliability with the Complete KOBELCO Compact Seal System Net Protector Propeller Double Security Compact Seal Spare Sealing Ring Double Security Compaei & Net Protector KOBELCO's Net Protector The Net Protector winds the nets or ropes between the protector and propeller blades, prevent- ing them from passing through the clearance between the rope guard and propeller boss. Aft Seal Tank (for #2/3) The Port Anti-Pollution (P.A.P.) System to Prevent Any Oil Leakage, Especially in Harbors When the shaft rotation has decreased under the rotation set by the control panel, solenoid valves (A) and (B) close, while valve (C) opens, and the oil level in the chamber between sealing ring #2 and #3 lowers to the level of (C) on the shaft line. Near Port (Harbor Speed) L=m= #3/3S Inlet v. KOBELCO's New 'Double Security' COMPACT SEAL During normal operation, the #3S sealing ring is kept in a no-load condition as the pressure between the #3/3S seal chamber and the stern tube is equalized using oil supplied from the stern tube gravity tank. If a leak occurs in the #3 sealing ring, the #3S sealing ring can immediately be engaged by closing valves on the oil lines leading to and from the #3/3S chamber. #3/3S Outlet Gravity Tank for Stern Tube U.S.A. Exclusive Agent Roland Marine Inc. 90 Broad Street, New York, NY 10004 U.S.A. TEL: 212-269-1075 TELEX: 222197 FAX: 212-943-4346 <•> imfilnlminE EmmEERmn chltd. 11F Shuwa Park Bldg., 2-4-1 Shibakoen, Minato-ku, Tokyo, 105 JAPAN TEL: 03-3459-4175-7 FAX: 03-3459-4189 Circle 283 on Reader Service Card June, 1993
