CG_BASE_SEATTLE_SOW.docx

24300_JHP_1017_400

Shaft Handling Equipment, Storage & Maintenance

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to complete maintenance for the Propeller and Shaft Handling equipment prior to the anticipated start date of a scheduled dry-dock maintenance availability and to store related equipment.

1.2 Government-furnished property.

($/UNIT)

2. REFERENCES

Coast Guard Drawings None.

Coast Guard Publications Surface Forces Logistics Center Standard Specification (SFLC Std Spec) 0000, 2014, General Requirements Surface Forces Logistics Center Standard Specification (SFLC Std Spec) 0740, 2014, Welding and Allied Processes Surface Forces Logistics Center Standard Specification (SFLC Std Spec) 5000, 2014, Auxiliary Machine Systems Surface Forces Logistics Center Standard Specification (SFLC Std Spec) 6310, 2014, Requirements for Preservation of Ship Structures

Other References DE - 319 (DWG), Shaft Handling Gear Concept DE - 320 (DWG), Propeller Handling Gear Concept DE - 321 (DWG), Outline of Tractor Elwell-Parker, Information and Troubleshooting Guide Elwell-Parker, Operating and Maintenance Manual Vols. I & II Elwell-Parker GM4VH, Operating Instruction and Service Manual Naval Ship’s Technical Manual, Chapter 556, Hydraulic Equipment Power Transmission and Control NAVSEA T9074-AS-GIB-010/271, Requirements for Non-Destructive Testing Methods Code of Federal Regulations (CFR) Title 29, Part 1915, Section 15, 2007, Shipyard Employment

3. REQUIREMENTS

3.1 General.

3.1.1 CIR. Not applicable

3.1.2 Tech Rep. Not applicable.

3.1.3 Protective measures. The Contractor shall furnish and install suitable covering to seal off and protect all non-affected surfaces/equipment and spaces in the vicinity of the work area against contamination during the performance of work. Upon completion of work, remove protective material and inspect for the presence of contamination. Clean all equipment and spaces, contaminated due to improper protection, to original condition of cleanliness.

3.1.4 Interferences. The Contractor shall handle all interferences in accordance with SFLC Std Spec 0000, paragraph 3.3.5 (Interferences).

3.1.5 General Description, Polar Class Ice Breaker, Propeller and Shaft Handling Equipment. The equipment consists of three major components: a tractor, a propeller handling pallet, and a shaft-handling trailer. A general description of each component follows:

Tractor: The tractor is a diesel electric powered industrial lift truck. The arrangement of the tractor is depicted in drawing DE-321; "Outline of Tractor". Hydraulic power for the tractor lift platform, the propeller pallet and shaft trailer is supplied by a common hydraulic system on the tractor and is powered by a pump driven by the tractor generator. The tractor is self-propelled and moves at a speed of approximately two-miles per hour. The tractor has a lift capacity of 120,000-pounds. Extreme caution should be exercised when maneuvering the tractor on any incline. Approximate dimensional data follows: weight = 73,800-lbs., length = 21.75-ft, width = 8.00-ft, and height = 12.00-ft.

Propeller Pallet: The propeller pallet is a platform with two hydraulically positionable uprights with bearing saddles contoured to fit the Polar Class Icebreaker propeller hubs. Both uprights have axial, transverse and vertical degrees of freedom. Rollers in the saddles permit manual rotation of propellers while in the saddles. The saddles may be interchanged between uprights or removed entirely to permit use of other saddles fitting propellers of smaller size. The unit is not powered and must be used in conjunction with the tractor defined above, both for transportation (on the tractor lifting platform) and for hydraulic power to position the uprights. The propeller pallet is illustrated in drawing; "DE-320; Propeller Handling Gear Concept Drawing". Approximate dimensional data follows: weight = 38,800-lbs., length = 12.00-ft, width = 12.00-ft, and height = 16.75-ft.

Shaft-Trailer: The shaft trailer is a wheeled rolling platform with two hydraulically positionable uprights with bearing saddles contoured to fit the liners on the Polar Class icebreaker propulsion tail-shafts. Both uprights have transverse and vertical degrees of freedom. One upright also moves axially along the trailer's length. The unit is not powered and must be used with the tractor for transportation (as a towed trailer) and for hydraulic power to position the uprights and operate the wire winch. The equipment does not "pull" the shaft but is only designed to "support" the shaft as the shaft is withdrawn using appropriate rigging techniques. The shaft carrier (trailer) is illustrated in drawing "DE-319; Shaft Handling Gear Concept Dwg (sheet 1-3)". Approximate dimensional data follows: weight = 91,500- lbs., length = 54.50-ft, width = 14.50-ft, and height = 16.00-ft.

3.2 Safety.

3.2.1 Awareness of the heavy weight of this equipment is mandatory. Note the weight is not evenly distributed over the full dimensions of the equipment, but rather is concentrated through weight bearing wheels.

3.2.2 The Contractor bears the responsibility for utilizing adequate lift capacity cranes, trucks, barges, etc., for handling and shipping of equipment.

3.2.3 The Contractor is cautioned about handling the equipment on inclines. The equipment was designed for use on level surfaces and may present difficult or even hazardous situations when transiting sloped areas (i.e. hills, dry-dock ramps, etc.).

3.2.4 The Contractor, in choosing handling areas, shall take into account the weight and maneuvering characteristics of the equipment. For example, asphalt or concrete surfaces may not adequately support the concentrated loads of this equipment and shall be considered carefully by the Contractor before selecting such a site for staging and handling this equipment.

3.2.5 After maintenance is completed, the Contractor shall move the equipment to a covered, secure, and protected storage area to reduce degradation, possible pilferage, and/or inadvertent damage.

3.2.6 While the equipment is being stored, it shall be made available upon request to the Coast Guard Inspector for inspection and/or maintenance.

3.2.7 Cleanliness is of the utmost importance in hydraulic systems. The Contractor shall ensure that cleanliness standards are maintained in accordance with ISO Cleanliness Code of 17/14 per ISO 4406 during all phases of work on the CPP system. If other items specified within this contract create an unclean environment due to scheduling by the Contractor and the situation is unsatisfactory to the Coast Guard, the Contractor shall bear full responsibility to correct the unclean situation prior to continuing work. For example, any abrasive grit blasting in the dry dock while the hydraulic system is open and unprotected, and components are being removed or installed is prohibited.

3.3 Assembly. The Contractor bears the responsibility for unloading and assembling the Elwell-Parker shaft handling equipment prior to use.

3.4 Operational Testing. The Contractor shall perform an operational test to include a weight test to working capacity. Submit a CFR documenting the condition of the equipment.

3.5 Scheduled Maintenance Inspection. In accordance with the Elwell-Parker Maintenance schedule and Maintenance Manuals, the Contractor shall perform the following maintenance checks:

3.5.1 Submit a CFR noting the status of all preventive maintenance to include any discrepancies noted as well as all corrective actions taken.

3.6 Corrective Maintenance The Contractor shall perform the following repair work.

3.6.1 Hydraulic inspection and repairs. The Contractor shall service rams, re-seal any leaks, renew all fluids, and replace all hoses in accordance with SFLC Std Spec 5000. Additionally, all external hose fittings shall be weatherized in accordance with SFLC Std Spec 5000.

3.6.2 Electrical inspection and repairs. The Contractor shall check all electrical components for proper operation, make adjustments as needed, check all electrical connections and ensure all covers are properly sealed or protected.

3.6.3 Weld Assessment. The Contractor shall conduct a visual assessment of all welds in accordance with SFLC Std Spec 0740.

3.6.4 The Contractor shall submit a CFR with the results of all of the above inspections and assessments to include a report of all corrective actions taken.

3.7 Preservation.

3.7.1 The Contractor shall complete100% preservation of all painted surfaces on the Shaft-Trailer component in accordance with SFLC Std Spec 6310. Paint color shall match the existing color of the other components.

3.7.2 Touch-Up Preservation. The Contractor shall prepare and touch-up coat all disturbed surfaces to match existing adjacent surfaces in accordance with SFLC Std Spec 6310. Paint all surfaces that were damaged during removal or installation of components.

3.8 Post maintenance, storage, and handling.

3.8.1 Post Maintenance Operational Testing. The Contractor shall perform a post maintenance operational test to include a weight test to working capacity. Submit a CFR documenting the condition of the equipment.

3.8.2 At the conclusion of the maintenance availability, the Contractor shall disassemble as far as necessary for shipping, package and inventory small parts, prepare for shipment or storage, and submit a CFR that includes the completed inventory. Hydraulic actuators shall be shipped or stored with cylinder rods in the retracted position.

3.8.3 The Contractor shall accomplish all movement of the equipment including loading and unloading from shipping trucks and placement in and out of storage as needed throughout the course of this contract.