TAMPA WMEC902_RedGear_EDD_DLA_10R0.pdf

(January 25, 2010 / Rev 0)

USCGC TAMPA (WMEC-902)

270 FOOT A CLASS MEDIUM ENDURANCE CUTTER

SPECIFICATION FOR DRYDOCK REPAIRS

Developed By:

D. Abdella

Commander Surface Forces Logistics Center 300 E. Main Street, Suite (600) Norfolk, VA 23510-9102

USCGC TAMPA (WMEC-902) DRYDOCK AVAILABILITY 2010

Page i (Rev 0)

TABLE OF CONTENTS

Work Item Title Page

List of Sketches ii

Revisions Record iii

List of Applicable References iv

List of Government-furnished Property vi

List of Critical Inspection Items vii

Specification Feedback viii

Principal Characteristics ix

General Requirements 1

1 Renew Port Thrust Bearing 3

2 Routine Drydocking 6

3 Provide Temporary Logistics 9

4 Provide Support for Performance of Sea Trials 11

5 Flush and Inspect Main Reduction Gear 14

Page ii (Rev 0)

List of Sketches

Work Item Sketch Number Page

This section is not applicable to this package.

Page iii (Rev 0)

Revisions Record

This page is used to record specification revisions, which may have occurred subsequent to a Revision 0 (Rev-0) package. Information listed is intended to provide contractors and field unit personnel a means to ensure all the current specification revision pages are present when reviewing or utilizing this specification package.

DATE REV# WORK

ITEM#

CHANGES MADE

NOTE: All work item and paragraph numbers listed above for a given revision correspond to same numbers in the previous revision. This revised specification is self-contained with all of the above listed changes incorporated.

Page iv (Rev 0)

List of Applicable References

The below-listed documents form a part of this specification to the extent specified herein.

Approval/publication dates or revision dates/numbers are also identified, to ensure that same document versions are used at time of specification writing and during contract execution.

Electronic copies of the latest Editions of MLCA Standard Specifications are available on the Internet and may be accessed at the following Internet Uniform Resource Locator (URL) address:

http://www.uscg.mil/mlclant/vdiv/standard_specifications.asp. Guidance for obtaining copies of all other documents referenced herein is provided in the solicitation.

Order of precedence. In the event of conflicts between text of this specification and the applicable references specified herein, order of precedence shall be in accordance with MLCA Standard Specification 0000_STD, paragraph 3.2 (Order of precedence), unless otherwise specified by the Contracting Officer (KO). The Contractor shall immediately notify the KO in writing of any perceived conflicts contained herein. Nothing in these documents, however, supersedes applicable laws and regulations, unless a specific exemption has been obtained.

GOVERNMENT DOCUMENTS, DRAWINGS, AND PUBLICATIONS

DOCUMENTS

Coast Guard Maintenance and Logistics Command Atlantic (MLCA) Standard Specification 8634_STD, 2004 Edition, Drydocking

Coast Guard Maintenance and Logistics Command Atlantic (MLCA) Standard Specification 8635_STD, 2004 Edition, Provide Temporary Logistics

Coast Guard Maintenance and Logistics Command Atlantic (MLCA) Standard Specification 0740_STD, 2004 Edition, Welding and Allied Processes

Coast Guard Maintenance and Logistics Command Atlantic (MLCA) Standard Specification 0000_STD, 2006 Edition, General Requirements

DRAWINGS

Coast Guard Drawing 901 WMEC 182-001, Rev G, MN ENG & RDCN Gear FDN

Coast Guard Drawing 901 WMEC 182-002, Rev F, Shaft Bearing FDN

Coast Guard Drawing 901 WMEC 182-003, Rev J, ENG Room FDNS, Upper Level

Coast Guard Drawing 901 WMEC 182-004, Rev R, ENG Room FDNS, Lower Level

Coast Guard Drawing 901 WMEC 243-001, Rev K, Shafting Arrangement

Coast Guard Drawing 901 WMEC 243-002, Rev G, Stern Tubes, Strut Bearing & Seal Arrangement and Details

Coast Guard Drawing 901 WMEC 243-003, Rev F, Shaft Removal Arrangement http://www.uscg.mil/mlclant/vdiv/standard_specifications.asp

Page v (Rev 0)

Coast Guard Drawing 901 WMEC 801-022, Rev H, Docking Plan

PUBLICATIONS

Coast Guard Commandant Instruction (COMDTINST) M10360.3 (series), Jun 2006, Coatings and Color Manual

Coast Guard Technical Publication (TP) 2697, Sep 2005, SWBS 241, Main Reduction Gear

Coast Guard Technical Publication (TP) 2698, May 2006, Chapter 244, Section B, Instruction Book for Main Thrust Bearing

Coast Guard Technical Publication (TP) 2699, Mar 2006, Technical Manual for the Controllable- Pitch Propeller

Page vi (Rev 0)

List of Government-furnished Property

The following is a list of property, which the Government will furnish. This list supersedes any other material obligations indicated or implied by referenced drawings.

WORK

ITEM

MTI ITEM

DESCRIPTION

NSN/PN QTY ESTIMATED

COST

($/UNIT)

1 Y **Thrust shaft NSN: 2010-01-366-0540 1 ea. 17,150.00 Y **Shipping pilots N/A 1 set 400.00

2 N *Transducer cover plate

N/A 4 ea. 200.00

*Government-loaned property, which shall be returned to the vessel upon completion of the availability.

**New or refurbished equipment that the Government may provide for installation in place of existing equipment.

Page vii (Rev 0)

List of Critical Inspection Items

The following is a list of work items, which contain Critical Inspection reports, which the Contractor must complete within the first 25% of the availability contract period (see Std Spec 0000_STD, paragraph 3.6.2 (Inspection report particulars)):

Work Item Title

1 Renew Port Thrust Bearing

Page viii (Rev 0)

Specification Feedback

The intent of this section is to inform all users that a spec feedback mechanism is in place, and is located on the MLCA Naval Engineering Division’s website. Spec feedback is a very important part of our overall continuous improvement process, and is crucial to specification development.

It will allow spec writers to capture all specification-related lessons learned, and avoid mistakes or ambiguities in follow-on availabilities. All feedback will be reviewed, evaluated, and responded to in a timely manner.

If you have access to the CGWeb (Intranet), please use the following link, which will connect you to the MLCA(v) Naval Engineering website, for submitting your feedbacks:

http://webapps.mlca.uscg.mil/vdiv/specifications/feedback/default.cfm

If you do not have access to the CGWeb (Intranet), you may still submit your feedbacks, using the following web link:

http://www.uscg.mil/mlclant/vdiv/specfeedback.asp http://webapps.mlca.uscg.mil/vdiv/specifications/feedback/default.cfm http://www.uscg.mil/mlclant/vdiv/specfeedback.asp

Page ix (Rev 0)

PC_270A WMEC

(21 Sep 2004)

Principal Characteristics

270A WMEC (A CLASS) MEDIUM ENDURANCE CUTTER

Length Overall 270' 0"

Depth (main deck at side to baseline) 33' 3"

Maximum Beam 37' 9-3/8"

Height of Highest Projection (above DWL) 90 ft.

Frame Spacing 1' 0"

Full Load Draft 13.85'

Full Load Displacement 1825.64 long tons

Shore Tie Voltage Requirements 450 vac, 400A, 3 phase cables

PROPELLER / SHAFT

Number of Propellers 2

Number of Blades per Propeller 4

Diameter of Propeller 9'

Pitch Controllable

Revolutions per Minute (RPM) 260

Shaft Diameter 10.55" at exit of hull

USCGC MOHAWK (WMEC-913) DOCKSIDE AVAILABILITY 2010

Page i (Draft-_/Rev-_)

00000_DLA_FLT (23 Oct 2008)

General Requirements

1. SCOPE

1.1 Intent. This item describes the general requirements to be followed by the Contractor while conducting this availability.

1.2 Government-furnished property.

None.

2. APPLICABLE DOCUMENTS

Coast Guard Maintenance and Logistics Command Atlantic (MLCA) Standard Specification 0000_STD, 2006 Edition, General Requirements

Coast Guard Maintenance and Logistics Command Atlantic (MLCA) Standard Specification 0740_STD, 2004 Edition, Welding and Allied Processes

Coast Guard Commandant Instruction (COMDTINST) M10360.3 (series), Jun 2006, Coatings and Color Manual

3. REQUIREMENTS

3.1 General. The Contractor shall conform to all requirements specified in Std Spec 0000_STD and in this item, as applicable, during the performance of this availability.

NOTE

The requirements of paragraph 3.1 (General) applies to all work under the scope of this contract, whether explicitly stated in work items or not, and also to all other work subsequently authorized by changes, modifications, or extensions to the contract.

3.2 Contractor-provided fire extinguishers. The Contractor shall provide portable fire extinguishers.

3.3 Welding and brazing requirements. The Contractor shall perform all welding and allied processes, and nondestructive inspection (NDI), in accordance with Std Spec 0740_STD.

3.4 Term substitution - COTR for COR. The Contractor shall be aware that the term "COR" (Contracting Officer's Representative) has been discontinued in favor of "COTR" (Contracting Officer's Technical Representative); consequently, whenever "COR" is encountered in this specification package, including referenced standard specifications and other referenced documents, it shall refer to "COTR", explicitly.

Page 2 (Rev 0)

4. NOTES

4.1 Access to COMDTINST M10360.3. The COMDTINST M10360.3 may be accessed at the following URL address:

http://www.uscg.mil/directives/cim.asp http://www.uscg.mil/directives/cim.asp

Page 3 (Rev 0)

24321_MWS_270A (14 Sept 2008)

WORK ITEM 1: Renew Port Thrust Bearing

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to remove, inspect, and reinstall the port thrust shaft; and to renew the port thrust bearing.

1.2 Government-furnished property.

MTI ITEM DESCRIPTION NSN/PN QTY

ESTIMATED

COST

($/UNIT)

Y **Thrust shaft NSN: 2010-01-366-0540 1 ea. 17,150.00 Y **Shipping pilots N/A 1 set 400.00

**New or refurbished equipment that the Government may provide for installation in place of existing equipment.

2. APPLICABLE DOCUMENTS

Coast Guard Maintenance and Logistics Command Atlantic (MLCA) Standard Specification 0740_STD, 2004 Edition, Welding and Allied Processes

Coast Guard Technical Publication (TP) 2698, May 2006, Chapter 244, Section B, Instruction Book for Main Thrust Bearing

Coast Guard Technical Publication (TP) 2699, Mar 2006, Technical Manual for the Controllable-Pitch Propeller

Coast Guard Drawing 901 WMEC 243-001, Rev K, Shafting Arrangement

Coast Guard Drawing 901 WMEC 243-002, Rev G, Stern Tubes, Strut Bearing & Seal Arrangement and Details

Coast Guard Drawing 901 WMEC 243-003, Rev F, Shaft Removal Arrangement

3. REQUIREMENTS

3.1 General.

3.1.1 Critical Inspection Report. The Contractor shall submit a critical inspection report (CIR) for the inspections listed in the following paragraph(s):

• 3.4 (Inspections).

Page 4 (Rev 0)

3.2 Removals. Using Coast Guard drawings 901 WMEC 243-001, 901 WMEC 243-002, 901 WMEC 243-003; TP-2699, Section 8-4 and TP-2698, Section F, Chapter IV as guidance, the Contractor shall accomplish the following:

• Mark and record the original positions of the thrust shaft, thrust bearing foundation, and coupling flanges to ensure that facilitate proper reinstallation.

• Provide support to the adjoining shaft coupling flange to prevent it from sagging.

• Remove the thrust shaft and thrust bearing to a suitable repair facility, using Government-furnished shipping pilots. Ensure shaft is properly protected and supported at all bearing journals, at all times, until reinstallation.

• Remove the CPP oil tubes from the shaft bore and from the reduction gears.

3.3 Protective measures. The Contractor shall protect the shaft and thrust bearing from weather and ensure that all bearing journals are properly supported at all times until reinstallation.

3.4 Inspections. The Contractor shall clean each shaft and associated components, including the inside shaft bore, and all CPP oil tubes (inside and outside) free of all surface contaminants, and accomplish the following inspections (Submit CIR.):

3.4.1 Visual inspection. Visually inspect all cleaned surfaces, including bearing components, shaft surfaces, and shaft bore, for excessive wear and other defects.

3.4.2 Measurements.

3.4.2.1 Measure the shaft journal diameters and runouts.

3.4.2.2 Measure the runouts along the shaft to check for straightness at approximately 3 feet intervals.

3.4.2.3 Measure the coupling face runouts on both shaft ends.

3.4.2.4 Measure all coupling bolts.

3.4.2.5 With keys installed, fit the shaft coupling to the shaft in shop, perform all necessary coupling machining to achieve a minimum of 80 percent contact, and check by bluing.

3.4.2.6 Install couplings and check face and bore runouts on couplings.

3.4.3 Non-destructive inspection. Conduct non-destructive testing of all shaft tapers and keyways in accordance with Std Spec 0740_STD.

NOTE

The existing thrust bearing is a SKF 29452 thrust bearing, and the existing split seal is a Garlock Split KLOZURE 23 X 6676 seal.

3.5 Reinstallation. Using Coast Guard drawings 901 WMEC-243-001, 901 WMEC-243-002, 901 WMEC-243-003; TP-2699, Section 8-4 and TP-2698, Section F as guidance, as applicable, the Contractor shall reinstall the port thrust shaft and renew the thrust bearing.

3.5.1 Renew the thrust bearing split seals.

Page 5 (Rev 0)

3.5.2 Renew all O-rings for the CPP oil tube connections and coupling flanges.

3.5.3 Adjust and realign the new thrust bearing including the foundation to its associated thrust shaft.

3.5.4 Ensure the thrust shaft is properly aligned with the adjoining shafts to original position using the reference marks established prior to its removal.

3.6 Thrust shaft change-out. The Contractor shall be aware that the Government reserves the right to furnish a new thrust shaft for installation in-place of the one removed. When the Government exercises this right, the Contractor shall turn over the removed thrust shaft to the PA as an MTI item.

3.6.1 Government-furnished shaft inspection. Remove the Government-furnished shaft from the shipping crate and transport it to a suitable inspection facility. Perform the inspections specified in paragraph 3.4 (Inspections) and submit a written report of findings to the COTR within 24 hours upon completion of the inspections.

3.7 Operational test. The Contractor shall demonstrate proper operation of the propeller shaft and thrust shaft. Conduct a sea trial to test the propulsion shaft in all modes of operation for a minimum of 4 hours.

Inspect and correct any leakage, abnormal noise and excessive vibration. Submit a CFR.

4. NOTES

This section is not applicable to this work item.

Page 6 (Rev 0)

86340_KAM_FLT (11 May 2009) 270A (08 May 2009)

WORK ITEM 2: Routine Drydocking

1.1 Intent. This work item describes the requirements for the Contractor to drydock and undock the cutter, and perform various drydocking-related inspections and tests.

1.2 Government-furnished property.

MTI ITEM DESCRIPTION NSN/PN QTY ESTIMATED COST

($/UNIT)

N *Transducer cover plate N/A 4 ea. 200.00 *Government-loaned property, which shall be returned to the vessel upon completion of the availability.

2. APPLICABLE DOCUMENTS

Coast Guard Maintenance and Logistics Command Atlantic (MLCA) Standard Specification 8634_STD, 2004 Edition, Drydocking

Coast Guard Drawing 901 WMEC 801-022, Rev H, Docking Plan

3. REQUIREMENTS

3.1 General. The Contractor shall drydock and undock the cutter, in accordance with Std Spec 8634_STD, using Coast Guard Drawing 901 WMEC 801-022 for guidance.

3.2 Cutter Conditions. The Contractor shall use the below-listed information for purposes of performing calculations, as described in paragraph 20.2 of Appendix B of Std Spec 8634_STD. (See Note 4.4 (Cutter characteristics)). The Contractor shall be responsible for any change to the cutter’s loading condition necessary for drydocking, to meet the capability of the Contractor’s dock.

• Displacement (LT): 1902.2

• VCG (FT ABL): 16.56

• LCG (FT aft amidships): 4.392

• Length Overall (FT): 270.0

• Length Between Perpendiculars (FT): 255.0

• Length of supported keel (FT): 195.5

3.3 Blocking position. The Contractor shall arrange keel and side blocks, as shown on the vessel's docking plan, to facilitate docking of the vessel in blocking position No. 1. Ensure that the minimum keel

Page 7 (Rev 0) block height is 48 inches above the docking facility deck.

3.4 Routine work. The Contractor shall perform the below-designated routine drydocking work, in accordance with Std Spec 8634_STD, Appendix A (Requirements for Routine Drydocking Work). (See Note 4.3 (Paragraph number relationships)). Follow the timeline for work completion and inspection report submission, as specified in Std Spec, 8634_STD, Appendix A, paragraph 20.2 (Inspections and repair work).

SUBSECTION TITLE

20.5 Propeller and shaft inspection.

3.5 Hull cleaning – removal of marine growth. The Contractor shall start cleaning the hull within four hours after the vessel has been lifted, to facilitate marine growth removal. Complete all cleaning operations within 24 hours after the vessel has been lifted.

3.6 Immediate work. The Contractor shall perform the following work, within 24 hours after the lifting of the vessel.

3.6.1 Temporary protective coverings. As soon as practicable after drydocking and underwater body surface cleaning, install protective coverings, over zinc anodes, hull fairing materials, propeller blade seals, rudder bearings, stern tube and strut bearings, spool pieces, spud wells, fin stabilizer seals bow thrusters, all exterior deck drains and all overboard discharges. Wrap all bearings and seals immediately after the vessel is drydocked to prevent entry of debris, abrasives, and paint during cleaning, surface preparation, and painting. Insert soft caulking material into the open ends of rudder and shaft stave bearings to prevent entry of grit or other foreign material.

3.6.2 Overboard discharge channeling and plugging. Place drain channels in overboard discharges in use to direct discharges away from the hull. Provide and install wooden plugs or coverings in sea chest spool pieces and overboard discharges not in use to prevent entry of sandblast grit or paint.

3.7 Allowable block timber stresses. The Contractor shall use information contained in the below table, in place of that which is provided in paragraph 20.5.1 (Allowable block timber stresses) of Appendix B, in Std Spec 8634_STD.

WOOD PROPERTIES

Block Material

Permissible Compressive Stress Perpendicular to the grain (psi)

Permissible Compressive Stress Parallel to the grain (psi)

Proportional limit Perpendicular to the grain (psi)

SOFTWOOD

Douglas Fir 400 1400 800 Yellow Pine 300 900 700

HARDWOOD

Red & White Oak 600 1300 1300

NOTE

Fuel offloading is not mandatory to drydock the vessel.

Page 8 (Rev 0)

Required clearance from stern for shaft removal is a minimum of 30’-0”.

If the drydock has a sliding block arrangement, the dockmaster shall exercise special care and/or set side blocks between frames 96 and 104 (fin stabilizer area) by a different method which clears the fin stabilizers.

4. NOTES

4.1 Drydock terms. As used in these specifications, all references to drydock facilities include graving drydocks, floating drydocks, marine railways, building ways or vertical lifts.

4.2 Arrival conditions. The Engineering Officer (EO) will advise the Contractor of the actual tank and draft readings when the vessel arrives, and will discuss with the Contractor any ballast requirements necessary to accommodate the vessel draft and trim.

4.3 Paragraph number relationships. The paragraph number for each subsection listed herein relates directly to identical sub-paragraph numbers in Std Spec 8634_STD.

4.4 Cutter Characteristics. The data shown does not represent the arrival displacement or docking displacement of the cutter.

Page 9 (Rev 0)

86350_LNM_FLT (13 Aug 2009)

WORK ITEM 3: Provide Temporary Logistics

1.1 Intent. This work item describes the requirements for the Contractor to provide temporary logistics.

2. APPLICABLE DOCUMENTS

Coast Guard Maintenance and Logistics Command Atlantic (MLCA) Standard Specification 8635_STD, 2004 Edition, Provide Temporary Logistics

3. REQUIREMENTS

3.1 General. The Contractor shall provide the below listed temporary logistics, in accordance with Std Spec 8635_STD (see paragraph 4.1):

PARAGRAPH TITLE

3.2.2 Telephone: Provide the number of independent and private telephone lines in accordance with Std Spec 8635_STD, connected to Contractor-furnished telephones, at the locations designated by the Coast Guard Inspector. Lines shall be high speed (HDSL) circuits with voice capability and a minimum of 768Kb of data bandwidth from the local telephone company's entrance facility demarcation point to the cutter's point of service. A minimum of one provided line shall have an extension aboard the vessel, to allow the Watchstander immediate phone access.

3.2.3 Parking.

3.2.5 Light and power.

3.2.7 Hazardous Waste Disposal.

LIQUIDS (GALLONS) SOLIDS

Used Lube Oil

Paint Thinners Engine Coolant Bilge Water Oily Filters Oily Rags

(lbs)

Empty Containers* 1-gal 5-gal 55-gal

10 10 00 50 10 20 10 01 00 *Empty containers that previously housed hazardous materials.

3.2.10 Potable water: 1,000 gallons per day.

3.2.11 Refuse disposal.

3.2.12 Sewage and Grey Water Disposal.

Page 10 (Rev 0)

3.2 Additional temporary logistics. If the performance period of the contract is extended by the Contracting Officer, the contractor shall continue to provide all temporary logistics as specified herein for the extension period.

3.3 Light and power revision. In addition to the requirements of Standard Specification 8635_STD, 2004 Edition, Section 3.2.5, the Contractor shall adhere to the following additional requirements:

3.3.1 Ungrounded shore power. Except for those cutters with an onboard shore power isolation transformer, only a single ungrounded shore power source shall be used for supplying electrical power, i.e. the generator or the transformer secondary supplying the shore tie must have all phases and any neutral insulated from earth with the frame of such equipment bonded to ground. Parallel transformers or generators shall not be used.

3.3.2 Grounding straps. Immediately after successful drydocking and before connecting the electrical shore tie cable to the vessel, the Contractor shall ground the vessel's hull to a shore side grounding source as follows:

3.3.2.1 Cable lugs. Tightly secure the grounding cable lugs to the grounding plates; ensure the lug contact area is cleaned thoroughly to bare metal, and that resistance of the connection is a maximum of 125 microhms.

3.3.2.2 Cable size. Ensure that the cross sectional areas of return ground cables are one million circular mils (1000 kcmil) minimum for each 1000 amps for each 100 feet (one or more cables, connected in parallel, may be used to meet the cross sectional area requirements). Return grounding cables smaller in diameter than 85 MCM (No. 1 AWG) are not permitted.

3.3.2.3 Cable insulation. All return grounding cables shall have completely insulated copper conductors with an insulation resistance value of no less than 0.1 megohms.

CAUTION!

The contractor shall not use the vessel's shore-tie cable when making electrical shore-tie connections.

4. NOTES

4.1 Paragraph number relationships. The paragraph number for each paragraph listed in 3.1 (General) relates directly to the identical sub-paragraph number in Std Spec 8635_STD.

Page 11 (Rev 0)

86850_FLT (23 Dec 2008)

WORK ITEM 4: Provide Support for Performance of Sea Trials

1.1 Intent. This work item describes the requirements for the Contractor to provide support for the performance of sea trials.

1.2 Government-furnished property.

None.

2. APPLICABLE DOCUMENTS

None.

3. REQUIREMENTS

3.1 Trial applicability. The Contractor shall perform sea trials for all work items that require conducting operational tests while the vessel is waterborne or underway, prior to their certification as being complete.

The Contractor shall be responsible for ensuring all test procedures are prepared, approved, and distributed for the sea trials, and shall be responsible for recording test data and submitting CFRs to the

COTR.

3.2 Sea trial agenda. The Contractor shall prepare an agenda that details the Contractor's plans for completing the required sea trials.

3.2.1 Agenda contents.

3.2.1.1 The agenda shall consist of chronological list of administrative events, inspection events and test events. Events shall be arranged to permit expeditious conduct with minimum interference between concurrent events.

NOTE

Mutually compatible events may be scheduled simultaneously.

3.2.1.2 The agenda shall identify installation of any test equipment or component modification that could impact the normal operation of equipment or systems during performance of the trials.

3.2.1.3 The agenda shall identify any operating instructions or special test procedures that could impact the normal operations of equipment or systems.

Page 12 (Rev 0)

3.2.1.4 The agenda shall include the full name, title, security clearance, home address, home telephone number and name of next of kin of each Contractor-personnel scheduled to ride the ship during performance of the trials.

3.2.2 Agenda submission requirements. The Contractor shall submit four legible copies of the sea trial agenda to the COTR two days prior to the scheduled trials. The Contractor shall coordinate both the planning and conduct of the post-overhaul ship trials with the ship's force (see 4.1 (Equipment operation)).

3.3 Environmental compliance. The Contractor shall abide by the below-listed rules, in addition to all other Federal, state, and local rules governing the overboard discharge of garbage and oil in the water.

3.3.1 Discharge of garbage.

GARBAGE TYPE RULE

Plastics, including synthetic ropes, fishing nets, and plastic bags Prohibited in all areas

Floating dunnage, lining and packing materials Prohibited less than 25 miles from nearest land

Food waste, paper, rags, glass, metal, bottles, crockery and similar refuse

Prohibited less than 12 miles from nearest land

Comminuted or ground food waste, paper, rags, glass, etc? Prohibited less than 3 miles from nearest land

3.3.2 Discharge of oil. The Contractor shall be aware that the Federal Water Pollution Control Act prohibits the discharge of oil or oily waste upon or into any navigable waters of the U.S. The prohibition includes any discharge that causes a film or discoloration of the surface of the water or causes a sludge or emulsion beneath the surface of the water.

WARNING!

Violators are subject to substantial civil and/or criminal sanctions including fines and imprisonment.

3.4 Dock trials. The Contractor shall conduct dock trials to demonstrate the material readiness of the ship for sea trials. Additionally, all onboard tests conducted after installation and prior to sea trials to prove proper installation and satisfactory operation of equipment shall be conducted in accordance with the requirements specified in the work items designated in paragraph 3.1 (Trial applicability). Ensure that the dock trials are begun no later than 12 hours prior to the scheduled sea trials.

3.4.1 The Contractor shall provide a pier facility (or allow the cutter to move to a Coast Guard pier) in order to support dock trials. Dock trials may not be conducted while the cutter remains floating inside the drydock (not touching the blocks).

NOTE

Examples of dock trials include conducting cold (pre-lightoff) and hot checks, cycling machinery (rudders, BPU, turning gear, fin stabilizers), and conducting any post-docking shaft alignment verification checks. This time may also be used to on-load fuel, if needed for operations.

3.4.2 During dock trials, Contractor personnel shall observe tests under their cognizance and make such adjustments and repairs, as required.

Page 13 (Rev 0)

3.5 Sea trials. As soon as possible after completion of the dock trials, the Contractor shall conduct the seal trials, based on the operational tests required in the work items listed in paragraph 3.1 (Trial applicability), for the following purpose:

• Perform tests that could not be performed while the ship was moored.

• Serve as final step in proving the success of the overhaul/repair tasks required in the designated work items, and ensure that Contractor and COTR are both satisfied that the ship is in all respects ready for final acceptance.

3.5.1 The Contractor shall have representatives on board the cutter to observe the trials for the purpose of observing whether or not the repairs are satisfactory.

3.5.2 The sea trials shall be carried out in free route, away from other shipping, as designated by the

COTR.

NOTE

The conditions of the trials will be determined largely by the character of the work that has been performed in each case, and as designated by the COTR. A full power trial should be run at this time unless the COTR elects to defer this run until all new machinery parts are properly run-in or the training status of the crew permits full power operation without undue hazard.

3.6 Post-trial examination. After the completion of the sea trial, the Contractor shall perform a careful and thorough examination of parts of the repaired machinery, as designated by the COTR. If any part of the ship or its equipment fails to meet contractual requirements during trials, perform additional trials after corrective measures have been taken.

NOTES

1. This examination may be conducted by the Engineer Officer of the ship, in which case he shall report the results of the examination to the COTR, fully describing any defects or improper conditions found.

2. Representatives of manufacturers who have furnished ship components may be invited to witness trials subject to approval of the CO or OINC of the ship.

4. NOTES

4.1 Equipment operation. Coast Guard personnel will operate all shipboard machinery and equipment during all tests.

Page 14 (Rev 0)

24110L_225WLB (23 Mar 2004) 902_DLA (21 Jan 2010)

WORK ITEM 5: Flush and Inspect Main Reduction Gear

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to flush and inspect the main reduction gear.

1.2 Government-furnished property.

None.

2. APPLICABLE DOCUMENTS

Coast Guard Technical Publication (TP) 2697, Sep 2005, SWBS 241, Main Reduction Gear

Coast Guard Drawing 901 WMEC 182-001, Rev G, MN ENG & RDCN Gear FDN

Coast Guard Drawing 901 WMEC 182-002, Rev F, Shaft Bearing FDN

Coast Guard Drawing 901 WMEC 182-003, Rev J, ENG Room FDNS, Upper Level

Coast Guard Drawing 901 WMEC 182-004, Rev R, ENG Room FDNS, Lower Level

3. REQUIREMENTS

3.1 General. The Contractor shall refer to the above-referenced Coast Guard drawings and TP 2697 for guidance.

3.1.1 Interferences. The Contractor shall be aware that interferences in way of work include, but are not limited to the following:

• Piping.

• Engine & shaft guards.

• Reduction gear / propulsion shaft coupling.

• Shafting.

3.1.2 Technical Representative. The Contractor shall provide the services of a certified Technical Representative (Tech Rep), who is familiar with this reduction gear system, to accomplish the following tasks – on site:

• Advise on manufacturer's proprietary information pertinent to the system.

Page 15 (Rev 0)

• Assist with proper repair methods, and ensure compliance with manufacturer's procedures and standards during disassembly, inspection, reassembly, alignment, and testing of the system.

The Contractor shall submit the name of the Tech Rep to the COTR at the Arrival Conference.

3.2 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.

3.2.1 Ensure that all exposed internal parts or openings in the hydraulic system are fitted with protective covering (Rags are not suitable protective covers - a sheet of heavy gauge plastic taped over the disassembled components is an acceptable seal against contamination). If foreign objects drop into an open assembly, ensure that they are removed even if the unit requires further disassembly.

3.2.2 Cap all open pipes until actual hook-up.

3.2.3 Keep the work area and support equipment clean during the entire duration of work.

3.3 Inspection requirements. The Contractor shall open the Main Reduction Gear and, using TP 2697 as guidance, accomplish the below inspections and submit a written report of findings and reccomendations to the COTR within 24 hours after completion of the inspections:

• Visually inspect the main couplings and gearing for broken fasteners or damaged parts.

• Visually inspect the clutch mechanisms for damaged parts.

• Inspect the lube oil system and components inside the red gear for damage or contamination.

• Inspect, clean, and record the location of all lube oil orifices.

3.4 Cleaning and flushing requirements. The Contractor shall perform the following in accordance with TP 2697 and under the supervision of the Tech Rep:

3.4.1 Perform a washdown of the gear casing, gears, bearing components, and head tank with hot lube oil.

NOTE

The Contractor shall supply manufacturer-recommended oil circulated through a Contractor-furnished heater to support lube oil flushing. The oil shall be circulated through a 10-micron filter prior to introduction into the reduction gear. Circulation shall continue until a satisfactory oil sample is obtained.

3.4.2 Clean the sump, head tank and interior surfaces free of all foreign materials, contamination, and residue.

3.4.3 Clean all system components (oil cooler, oil filter, strainer).

3.4.4 Upon completion of cleaning, inspect the sump interior in the presence of the Coast Guard Inspector and Tech Rep to ensure there is no foreign debris or contamination. Reinstall all removed covers and close the sump.

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3.4.5 Furnish and completely fill the sump with manufacturer-recommended oil.

3.5 Reassembly. The Contractor shall reassemble and restore the shafting and reduction gear connections upon completion of work.

3.6 Operational test – final. In the presence of the Coast Guard Inspector, the Contractor shall thoroughly test and prove the reduction gear to be in satisfactory operating condition (see 4.1 (Equipment operation)). Submit a CFR.

4. NOTES

4.1 Equipment operation. Coast Guard personnel will operate all shipboard machinery and equipment during all operational tests.