USCGC Hudson Exhaust Cleaning

USCGC HUDSON (WLIC 801) SPECIFICATION FOR DOCKSIDE REPAIRS FY2026 Developed By: Erik C Elasik -- 1 of 10 -- USCGC HUDSON (WLIC-160A) DOCKSIDE AVAILABILITY FY2026 28 (Rev-0) 25901_ESD_0323_FLT REC_25901_FLT_160 WLIC (ALL) (0323) WORK ITEM 5: Main Diesel Engine, MDE, Exhaust Piping, Commercial Clean 1. SCOPE 1.1 Intent. This work item describes the requirements for the Contractor to clean the Main Diesel Engine (MDE) exhaust piping system, including the associated stack uptakes. 1.2 Government-furnished property. None. 2. REFERENCES COAST GUARD DRAWINGS Coast Guard Drawing 160 WLIC 1107-1, Rev L, Dk House Eng Casing & Stacks Coast Guard Drawing 160 WLIC 4105-3, Rev H, Arrgt Eng & Boiler Exhaust COAST GUARD PUBLICATIONS Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2022, General Requirements Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2022, Requirements for Preservation of Ship Structures OTHER REFERENCES Code of Federal Regulations (CFR) Title 29, Part 1915, 2014, Occupational Safety and Health Standards for Shipyard Employment 3. REQUIREMENTS 3.1 General. 3.1.1 CIR. None. -- 2 of 10 -- USCGC HUDSON (WLIC-160A) DOCKSIDE AVAILABILITY FY2026 29 (Rev-0) 3.1.2 Tech Rep. Not applicable. 3.1.3 Protective measures. The Contractor must furnish and install all protective measures in accordance with SFLC Std Spec 0000, paragraph 3.3.3 (Vessel component, space, and equipment protection). 3.1.4 Interferences. The Contractor must handle all interferences in accordance with SFLC Std Spec 0000, paragraph 3. (Interferences). Known interferences include, but are not limited to the following: • Access covers • Exhaust stack • MDE • Piping • Pipe insulation • Vent ducting • Wiring • Exhaust pipe expansion joints • Exhaust insulation blankets • 3.2 Staging or scaffolding, netting. The Contractor must erect suitable staging or scaffolding in accordance with 29 CFR 1915, Subpart E (Scaffolds, Ladders and Other Working Surfaces) to facilitate work, as required. 3.2.1 Rig suitable safety netting, to protect workers during possible falls, and to protect the Engine Room and machinery from falling tools. 3.3 Work plan. The Contractor must develop and submit, to the COR, a plan for collecting and disposing of waste extracted during cleaning process. Ensure that the proposed plan must detail how and where exhaust piping will be disconnected, how entire length of exhaust piping will be divided/sectioned for cleaning, and precautions to protect the MDE. The Contractor must perform this work upon receiving Coast Guard approval of the plan. NOTE Coast Guard personnel will operate all shipboard machinery and equipment. 3.4 Operational test, initial. Prior to commencement of work, the Contractor must witness Coast Guard personnel perform an initial operational test of all items or shipboard devices to be disturbed, used, repaired, or altered, to demonstrate existing operational condition. Submit a CFR. 3.5 Cleaning. The Contractor must clean the interior surfaces of the exhaust piping and stack uptakes to the MDE, shown on Coast Guard Drawings 160 WLIC 1107-1 and 160 WLIC 4105-3, to a condition free from soot, tar, and any other foreign matter as follows: 3.5.1 Disconnect the exhaust piping as necessary to facilitate cleaning. -- 3 of 10 -- USCGC HUDSON (WLIC-160A) DOCKSIDE AVAILABILITY FY2026 30 (Rev-0) 3.5.2 Thoroughly sweep, mechanically clean, and vacuum the interior of each exhaust pipe system, including the mufflers, from the exhaust outlet to the topmost location outside the vessel. Clean all adjacent stack uptake surfaces. Ensure that all tar deposits, soot deposits, and all other surface contaminants are removed. 3.5.3 Remove all debris from the pipe surfaces, stack deck, and Engine Room areas by vacuuming. Dispose of all cleaning materials and generated debris in accordance with all applicable Federal, state, and local regulations. 3.5.4 Reassemble exhaust piping; renew all disturbed flange connection gaskets with suitable high temperature, non-asbestos-containing gasket materials; and renew all disturbed fasteners. 3.6 Inspection and report. The Contractor must perform a visual inspection of the following components; submit a CFR: • Exhaust stack access hatches, including all associated studs and nuts. • All cleaned exhaust stack surfaces. • All exhaust expansion joints, including associated bolts. 3.6.1 Following cleaning of the interior of each exhaust pipe system, the Contractor must demonstrate completeness of the cleaning process to the Coast Guard Inspector, showing that the entire length of exhaust piping cleaned according to the work plan. 3.7 Touch-up preservation. The Contractor must prepare and coat all new and disturbed surfaces to match existing adjacent surfaces in accordance with SFLC Std Spec 6310, (Touch-ups and minor coating repairs.) NOTE Coast Guard personnel will operate all shipboard machinery and equipment. 3.8 Operational test, post repairs. After completion of work, the Contractor must thoroughly test, in the presence of the Coast Guard Inspector and demonstrate all items or shipboard devices that have been disturbed, used, repaired, altered, or installed to be in satisfactory operating condition. Submit a CFR 4. NOTES This section is not applicable to this work item. -- 4 of 10 -- USCGC HUDSON (WLIC-160A) DOCKSIDE AVAILABILITY FY2026 31 (Rev-0) 25902_ESD_0323_FLT REC_25902_FLT_160 WLIC (ALL) (0323) WORK ITEM 6: Ship Service Diesel Generator, SSDG, Exhaust Piping, Commercial Clean 1. SCOPE 1.1 Intent. This work item describes the requirements for the Contractor to clean the exhaust piping system for the following ship service diesel generators (SSDG): #1 SSDG and #2 SSDG of the Ship Service Diesel Generator (SSDG) piping, including the associated stack uptakes. 1.2 Government-furnished property. None. 2. REFERENCES COAST GUARD DRAWINGS Coast Guard Drawing 160 WLIC 1107-1, Rev L, Dk House Eng …