Section_J_-_Att_No__1_SOW_ALMA_Port_Engine_Rebuild_Prev_Maint.pdf

SAN FRANCISCO MARITIME NATIONAL HISTORICAL

PARK

DETROIT DIESEL 71 SERIES ENGINE ANNUAL CYCLIC

MACHIENERY MAINTENANCE AND REPAIR FOR NHL

SCOW SCHOONER ALMA

4/3/2023

Table of Contents

Section 1 – General Information and Requirements

Section 2 – Work Items

ITEM 1.0 Port Main Engine In-Frame Rebuild

ITEM 2.0 Starboard Main Engine and Both Transmission Services

SCOPE OF WORK

SAN FRANCISCO MARITIME NATIONAL HISTORIC PARK

ANNUAL CYCLIC MACHIENERY MAINTENANCE AND EXHAUST MANIFOLD REPLACEMENT FOR NHL SCOW

SCHOONER ALMA

SECTION 1 – GENERAL INFORMATION

SAN FRANCISCO MARITIME NATIONAL HISTORIC PARK (SAFR)

San Francisco Maritime National Historical Park (SAFR), established in 1988 and located on San

Francisco’s northern waterfront, hosts over four million visitors each year. The Park includes a fleet of

National Historic Landmark vessels (1886 Balclutha, 1895 C.A. Thayer; 1891 Alma; 1890 Eureka, 1914

Eppleton Hall; and 1907 Hercules), the Aquatic Park National Landmark District, Municipal Pier, Hyde

Street Pier, a Maritime Museum, a Visitor Center, and a Maritime Library. San Francisco Maritime and its partners seek to forge emotional and intellectual connections through preservation and interpretation of the resources and stories of America's maritime gateways, history, and culture, especially the development of the Pacific Coast.

NHL SCOW SCHOONER ALMA

The National Historical Landmark (NHL) Scow Schooner Alma was built in Hunters Point, San Francisco in

1891 and worked her whole life on San Francisco Bay and the Delta. Scow Schooner Alma is an operational/open museum vessel of the San Francisco Maritime National Historical Park (SAFR), National

Park Service (NPS), Department of the Interior (DOI) located at Hyde Street Pier. The vessel is 80 feet in length over all and has a gross tonnage of 46 tons. When Alma is not under sail, she is powered by two marine service, six cylinder, 71 series Detroit diesel engines that provide approximately 120 horsepower to their dedicated propellers. Electricity is supplied aboard the vessel when under way by a 5Kw

Northern Lights diesel generator.

SUMMARY OF WORK

The intent of this Scope of Work is to provide an in frame rebuild of Alma’s port engine. This involves dismantling the engine in place, to replace the bearings, pistons, liners and any other worn components.

This scope will also include rebuilding the engine with new components and the related tune-up, balancing, adjustments to fuel system, blower, and all related inspections. The second work item within this scope is to provide annual engine service maintenance for 4 ea Option for the starboard main engine and both port and starboard transmissions.

Base Year/Option

Year

Item Description Quantity Unit of Measure Period of Performance

Base Year Port Engine In-Frame

Rebuild 1 Job 09/20/2023-

09/19/2024

Option Year 1 Annual Service for Starboard and Port Starboard

Transmission.

1 Job

09/20/2024-

09/19/2025

Option Year 2 Annual Service for Starboard and Port Starboard

Transmission.

1 Job

09/20/2025-

09/19/2026

Option Year 3 Annual Service for Starboard and Port Starboard

Transmission.

1 Job

09/20/2026-

09/19/2027

Option Year 4 Annual Service for Starboard and Port Starboard

Transmission.

1 Job

09/20/2027-

09/19/2028

EQUIPMENT IDENTIFICATION

1. Port 671 with equipment s/n: 6A50664

2. Stbd 671 with equipment s/n: 6A51104

3. Port Transmission MG-509 with equipment s/n: 5AJ387

4. Stbd Transmission MG-509 with equipment s/n: 5AJ391

GENERAL REQUIREMENTS

The Contractor will furnish all labor, materials, equipment and tools to accomplish the required tasks.

Contractor shall provide a technician qualified and experienced in working with 71 series Detroit diesel engines, and work in accordance with manufacture, and industry standards.

Experience working with marine service, six cylinder, 71 series Detroit diesel engine manufactured by

General Motors.

PREVENTATIVE MAINTENANCE (PM):

Contractor shall provide annual preventive maintenance services once during each Period of

Performance, during hours when the equipment are accessible, and arranged through the COR.

The contractor shall ensure annual PM occurs on the anniversary PM due date, or within a three-month window either side of this date, during the respective period of performance, and again during each successive period of performance where the option period has been renewed.

If annual PM occurs outside the PM due date, but within the three-month window, the contractor must obtain written approval from the COR prior to commencing PM. Annual PM must not occur less than six

(6) months from the last PM in the previous period of performance unless the contractor receives prior written approval from the COR.

WORKING RESTRICTIONS:

The contractor will be required to service the engines onboard the NHL scow schooner Alma, requiring the capability of being a fully mobile service and repair provider. Due to space limitations, a vehicle will not be permitted immediately adjacent of the boat, but any equipment, tools, and materials would need to be carted to the boat approximately 800’ down the pier.

TESTING AND TRIALS

Work items call for running engine to confirm proper operation. These trials or sea trials may be combined. One underway sea trial is required at the completion of all work.

FINAL CLEAN-UP

At time of final inspection, the site shall be cleaned and ready for public use. All tools, equipment, surplus materials, rubbish and Hazardous Material will be removed and disposed of by the Contractor.

CUSTOMER RESPONSIBILITY

Have equipment available for service at the preset dates/locations as established by the customer and

Contractor.

SECTION 2 – WORK ITEMS

ITEM 1.0 PORT ENGINE IN-FRAME REBUILD (Base Year Only)

1. INTENT: The Contractor shall replace pistons, liners, rings, lower bearings and related gaskets and equipment. The contractor shall provide labor, tools, supplies and materials to dismantle the engine, and reassemble engine and related accessories including but not limited to: head, blower, exhaust manifold, fuel rack, oil pan and pump, water manifold, heat exchanger, water pump. All work shall be in accordance with the manufacturer’s service manual.

2. REFERENCES AND MATERIALS:

A: The appropriate Detroit service manual for the in-line 671.

3. REQUIREMENTS:

A: The contractor shall drain the oil from engines.

B: The contractor shall remove oil pan and oil pump.

C: The contractor remove all accessories including but not limited to: airbox covers, exhaust and water manifold, heat exchanger, front crank pulley and lower cover, blower, water and fuel pump.

D: The contractor shall remove cylinder head, cylinder kits.

E. The contractor shall clean engine block and magna flux fire deck.

F: The contractor will perform check of bore sizes, taper and out of round before fit of new liners. Upon completion of clean and inspect, contractor will inform customer of conditions and allow time for customer to inspect and approve.

G: The contractor shall remove main bearings and thrust washers.

H: The contractor shall inspect thrust washer pins, crankshaft and rod journals, and gauge main bearing journals.

I: Upon removal of bearings and inspection of surfaces, contractor will inform customer of tolerances and allow time for inspection and approval.

J: The contractor shall assemble and install new cylinder kits, main bearings and thrust washers, connecting rods and rod bearings.

K: The contractor shall reassemble all components removed in any of the line items above as well as, but not limited to them and any additional items required to perform the work outlined in line J. Upon completion of reassembly, contractor shall inform customer and allow time for inspection and approval.

4. Perform Tune up and lubrication

A: The contractor shall set valves and Injectors.

B: The contractor shall adjust governor and fuel rack.

C: The contractor shall add oil and coolant, replace oil and fuel filters.

D: The contractor shall start, run and test engine for proper functioning and for water, oil and fuel leaks around the filters, impellers, zincs and other locations on this work item.

END ITEM 1.0

ITEM 2.0 BASIC ANNUAL SERVICE FOR STARBOARD MAIN ENGINE and PORT AND STARBOARD

TRANSMISSIONS (Option Year 1 – Option Year 4 ONLY)

1. INTENT: The Contractor shall service the starboard main Detroit in-line 671 and related transmissions. The contractor shall provide labor, tools, supplies and materials to test the engine oil, transmission oil and coolant, replace the engine oil, oil filters, transmission oil, fuel filters and raw water impellors. All work shall be in accordance with the manufacturer’s service manual.

2. REFERENCES AND MATERIALS:

A: The appropriate Detroit service manual for the in-line 671.

3. REQUIREMENTS:

A: The contractor shall drain the oil from both engine and transmissions.

B: The contractor shall remove old oil filters and install new.

C: The contractor shall fill the engine and transmission oil reservoirs to the appropriate level with the appropriate oils.

D: The contractor shall replace both the engine mounted fuel filter and the pre-filter mounted on the bulkhead.

E. The contractor shall be responsible for the proper disposal of all oils.

E: The contractor shall inspect and replace coolant system zincs as necessary.

F: The contractor shall inspect and replace raw water impellers.

4. TESTING/INSPECTION

A: The contractor shall take samples of engine oil, transmission oil and coolant from both main engines.

B: The contractor shall provide testing of all the samples for quality and impurities.

C: The contractor shall provide the COR a written report of the testing of the oils and coolant.

D: The contractor shall start, run and test engine for proper functioning and for water, oil and fuel leaks around the filters, impellers, zincs and other locations on this work item.

END ITEM 2.0