Port Service Frame Replacement. 01. General Install Stbd Service Frame Assembly, including the "Suspension Bridge" (flexible cable support between the lower service frame and the trunnion elbow) and Service Frame Bracing. Remove existing Stbd Service Frame and replace with new. 02. References Dwgs: DTC 70.010-4411-942, Revision E – Service Frame for Cables, Hoses, etc … USACE E-2705-1, Revision F – Cables, Hoses, etc … on Drag Arm and Service Frame USACE E-1710-6 Service Frame Bracing USACE E-1710-15, Revision O – Sliding Trunnion Body and Trunnion Ring for Drag Arms USACE E-1710-22 – Service Frame Bridge Support Modifications USACE E-1710-23 – Arrangement & Details Service Frame Bridge USACE E-1710-25 – Service Frame Bridge Rebuild 03. GFM Stbd Service Frame Assembly Special hydraulic torque wrench for trunnion elbow bolts (x1, available aboard the vessel); and Two (2) each brass upper frame bearing blocks. 04. Safety Precautions Prior to commencing work, follow vessel’s LOTO policy and procedures. Follow all applicable state local and federal requirements including those specified in EM-385-1-1 latest revision 05. Specifications Transport and install GFM Stbd Service Frame and Service Frame Bracing per dwg 70.010-4411-942 and E-1710-6. Note drawings show Starboard side. New Service Frames shall be coated to the following schedule. Primer – Apply one coat of Jotun Barrier AV Zinc Epoxy, or COR approved equivalent per the manufacturer’s instructions, at a rate of 2-3 mils dry film thickness. Required salient characteristics of Jotun Barrier AV Zinc: Zinc rich epoxy primer coating suitable for carbon steel, repair of inorganic zinc silicate coating. Suitable for structural steel and piping exposed to highly corrosive environments and compliant with ISO 12944 C5I and/or C5M recommended for offshore environments and immersed service. Base Coat – apply one coat of Jotun Jotamastic 90 Gray Epoxy, or COR approved equivalent per the manufacturer’s instructions, at a rate of 5-6 mils dry film thickness. Required salient characteristics of Jotun Jotamastic 90: Two component polyamine cured epoxy mastic coating suitable for carbon steel, repair of inorganic zinc silicate coating. Suitable for structural steel and piping exposed to highly corrosive environments and compliant with ISO 12944 C5I and/or C5M recommended for offshore environments and immersed service. Top Coat – Apply one full coat of Jotun Hardtop Urethane Black, or COR approved equivalent per the manufacturer’s instructions, to coated areas at a rate of 4-5 mils wet dry. Required salient characteristics of Jotun Hardtop CA: Two component cross linked acrylic coating suitable for carbon steel, repair of inorganic zinc silicate coating. Suitable for structural steel and piping exposed to highly corrosive environment and compliant with ISO 12944 C5I and/or C5M recommended for offshore environments and immersed service. New Service Frame shall include all new rubber and/or phenolic cable, pipe, and hose blocks, braces, and fasteners. All fasteners shall be 316 Stainless Steel. A ship check of the block arrangement is highly recommended. Removal of existing Service Frame shall be accomplished with the drag arm lowered to the drydock floor. Vessel Crew’s assistance shall be provided to lower the drag arms. Vessel shall be furnished to the Contractor with the drag heads removed and the OSDP oil system drained of oil. Lower Stbd drag arm to the drydock floor and crib in place for the removal work. Cribbing shall be required at the forward end of the ‘banjo’ frame (approximately 65 Tons weight), aft end of the ‘banjo frame’ (approximately 45 Tons), aft end of the drag pipe, gimbal joint, and service frame. When removing the service frame, remove various electrical, grease, flushing water and oil lines from the service frame and support them near but clear of the frame for removal. Mark all lines such that they can be reinstalled in the same locations from which removed. Motor insulating oil lines shall contain residual oil at low points which shall be drained when the lines are disconnected. When oil lines are disconnected, cap the open ends with gasket bolt on plates. A 2" SAE 3000 PSI bolt pattern or blank flanges may be used. There is a hose at each hinge point with pipe in between. Ensure all disconnected lines are marked for later reconnection. Marking shall be approved by the COR prior to removal. If bolts at the flange connections are rusted, they may be burned off and replaced. They are through bolts so there are no tapped holes to worry about. Grease lines are 1/2" tube with hoses across the hinge points. Hoses have 1/2" x 37° female JIC (male JIC on the tubes). Cap tubes and plug the hoses with steel 37° JIC fittings. Ensure all removed and disconnected hoses and tubes are marked for reinstallation in the same location from which removed. Various metal tubes, oil and waterlines may be left in place and removed in the shop. Angle sensor at each trunnion elbow shall be removed and replaced by the Ship’s Electrician. Furnish staging and crane service to move the sensor to the deck and back at replacement time. Vessel shall retain the sensor pending replacement.
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Port Service Frame Replacement. 01. General Install Stbd Service Frame Assembly, including the "Suspension Bridge" (flexible cable support between the lower service frame and the trunnion elbow) and Service Frame Bracing. Remove existing Stbd Service Frame and replace with new.
02. References Dwgs: DTC 70.010-4411-942, Revision E – Service Frame for Cables, Hoses, etc … USACE E-2705-1, Revision F – Cables, Hoses, etc … on Drag Arm and Service Frame USACE E-1710-6 Service Frame Bracing USACE E-1710-15, Revision O – Sliding Trunnion Body and Trunnion Ring for Drag Arms USACE E-1710-22 – Service Frame Bridge Support Modifications USACE E-1710-23 – Arrangement & Details Service Frame Bridge USACE E-1710-25 – Service Frame Bridge Rebuild
03. GFM GFP Stbd Service Frame Assembly Special hydraulic torque wrench for trunnion elbow bolts (x1, available aboard the vessel); and Two (2) each brass upper frame bearing blocks.
04. Safety Precautions Prior to commencing work, follow vessel’s LOTO policy and procedures. Follow all applicable state local and federal requirements including those specified in EM-385-1-1 latest revision
05. Specifications Transport and install GFM GFP Stbd Service Frame and Service Frame Bracing per dwg 70.010-4411-942 and E-1710-6. Note drawings show Starboard side. New Service Frames shall be coated to the following schedule. Primer – Apply one coat of Jotun Barrier AV Zinc Epoxy, or COR approved equivalent per the manufacturer’s instructions, at a rate of 2-3 mils dry film thickness. Required salient characteristics of Jotun Barrier AV Zinc: Zinc rich epoxy primer coating suitable for carbon steel, repair of inorganic zinc silicate coating. Suitable for structural steel and piping exposed to highly corrosive environments and compliant with ISO 12944 C5I and/or C5M recommended for offshore environments and immersed service. Base Coat – apply one coat of Jotun Jotamastic 90 Gray Epoxy, or COR approved equivalent per the manufacturer’s instructions, at a rate of 5-6 mils dry film thickness. Required salient characteristics of Jotun Jotamastic 90: Two component polyamine cured epoxy mastic coating suitable for carbon steel, repair of inorganic zinc silicate coating. Suitable for structural steel and piping exposed to highly corrosive environments and compliant with ISO 12944 C5I and/or C5M recommended for offshore environments and immersed service. Top Coat – Apply one full coat of Jotun Hardtop Urethane Black, or COR approved equivalent per the manufacturer’s instructions, to coated areas at a rate of 4-5 mils wet dry. Required salient characteristics of Jotun Hardtop CA: Two component cross linked acrylic coating suitable for carbon steel, repair of inorganic zinc silicate coating. Suitable for structural steel and piping exposed to highly corrosive environment and compliant with ISO 12944 C5I and/or C5M recommended for offshore environments and immersed service. New Service Frame shall include all new rubber and/or phenolic cable, pipe, and hose blocks, braces, and fasteners. All fasteners shall be 316 Stainless Steel. A ship check of the block arrangement is highly recommended. Removal of existing Service Frame shall be accomplished with the drag arm lowered to the drydock floor. Vessel Crew’s assistance shall be provided to lower the drag arms. Vessel shall be furnished to the Contractor with the drag heads removed and the OSDP oil system drained of oil. Lower Stbd drag arm to the drydock floor and crib in place for the removal work. Cribbing shall be required at the forward end of the ‘banjo’ frame (approximately 65 Tons weight), aft end of the ‘banjo frame’ (approximately 45 Tons), aft end of the drag pipe, gimbal joint, and service frame. When removing the service frame, remove various electrical, grease, flushing water and oil lines from the service frame and support them near but clear of the frame for removal. Mark all lines such that they can be reinstalled in the same locations from which removed. Motor insulating oil lines shall contain residual oil at low points which shall be drained when the lines are disconnected. When oil lines are disconnected, cap the open ends with gasket bolt on plates. A 2" SAE 3000 PSI bolt pattern or blank flanges may be used. There is a hose at each hinge point with pipe in between. Ensure all disconnected lines are marked for later reconnection. Marking shall be approved by the COR prior to removal. If bolts at the flange connections are rusted, they may be burned off and replaced. They are through bolts so there are no tapped holes to worry about. Grease lines are 1/2" tube with hoses across the hinge points. Hoses have 1/2" x 37° female JIC (male JIC on the tubes). Cap tubes and plug the hoses with steel 37° JIC fittings. Ensure all removed and disconnected hoses and tubes are marked for reinstallation in the same location from which removed. Various metal tubes, oil and waterlines may be left in place and removed in the shop. Angle sensor at each trunnion elbow shall be removed and replaced by the Ship’s Electrician. Furnish staging and crane service to move the sensor to the deck and back at replacement time. Vessel shall retain the sensor pending replacement.
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