SOW.pdf

File Name: SOW Optical Alignment-0

STATEMENT OF WORK

PERIOD OF PERFORMANCE: OOA 25-29May2026

SHORT TITLE: 87 WPB Shaft and Ruder Bearing Alignment Service

1. PLACE(S) OF PERFORMANCE:

a. USCG Base Ketchikan

1300 Stedman Street Ketchikan AK. 99901

2. REFERENCES:

Coast Guard Drawing 87 WPB 243-003, Rev -, Propulsion Shaft Details Coast Guard Coast Guard Technical Publication (TP) 4499, Jun 2018, SWBS 243, Stern Tube Seal-Model442C

Coast Guard Technical Publication (TP) 4500, September 2017, SWBS 233, Engine Change-OutGuide – Waterborne Main Diesel

Coast Guard Technical Publication (TP) 4506, Wartsila TM-EL-68839, Issue A, Mar 2005, Rudderstock Seal Type EL

Coast Guard Drawing 87 WPB 561-001, Rev M, Steering System Details Coast Guard Drawing 87 WPB 562-001, Rev A, Rudder Details

3. SPECIFICATIONS:

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2022, General Requirements

4. SECURITY REQUIREMENTS:

The Contractor shall submit a visit request a minimum of four (4) business days prior to site arrival. The request must contain the full name, and date of birth for each employee.

Additionally, for each employee, the request must specify the type, issuing agency, and card number of the Real ID compliant identification that will be used to gain access.

All Contractor employees must identify themselves as such if their status is not immediately apparent. If a Government-issued badge is provided, it must be displayed in plain view above the waist at all times.

5. TASK ORDER MANAGEMENT DESIGNATION: N/A

6. DESCRIPTION OF WORK: IPF Ketchikan will be completing shaft renewal of both (starboard and port) shafts and rudders onboard the cutter as part of a routine scheduled drydock availability. As part of the work, alignment checks of the shaft line bearing carriers and lower and upper rudder bearing housing are necessary. This requirement is for a Contractor to provide a qualified technical representative and equipment necessary to perform stern tube bearing and rudder bearing alignment surveys onboard an 87’ WPB cutter in the presence of a Coast Guard Inspector. Based on the results of the alignment check the Coast Guard may choose to renew one or more bearing carrier(s) for one or both propulsion shafts. In order to conduct this work, the Coast Guard may request the Contractor provide a proposal for the additional costs for the qualified technical representative to return to the government site and provide additional alignment services to facilitate the installation of new bearing carriers.

6.1. Upon removal of the shafts by the Government, the Contractor will conduct the alignment survey via optical or laser methods IAW references at all require target points using Coast Guard Drawing 87 WPB 243-003 as guidance to measure and record each of the vertical and athwartship bearing positions (fore and aft targets for each stern tube bearing carrier), stern tube/seal flange position and reduction gear center position relative to the reference line (centers of the aft-most end of the stern tube and the forward-most stern tube/seal flange). The piano wire method MAY NOT be used as the sole means of measurement. The contractor shall submit findings on the government provided inspection form (Appendix A).

6.2 Upon removal of the rudders by the Government, the Contractor shall measure the alignment between the lower (three places) and upper bearing housings using the taut wire or optical method using Coast Guard Drawing 87 WPB 561-001. The contractor shall submit findings on the government provided inspection form (Appendix B).

6.3 The contractor shall coordinate with the Government to minimize the thermal effects by performing the survey in the evening or before sunrise.

6.4 The Contractor will record survey results on provided survey form or report approved by Coast Guard Representative and provide any correction recommendations. Alignment measurements must be conducted to 0.001”

6.5 If determined to be necessary based on the results of alignment survey described in paragraph 6.1 and upon approval of a proposal by the contracting officer, the contractor shall provide alignment services to assist Government personnel in aligning the new bearing carrier(s). Government personnel will perform machining and pouring of the chocking material the bearing carriers. Once the chocking material has set, the contractor shall complete an alignment survey to verify the respective shift line is now in tolerance using Coast Guard Drawing 87 WPB 243-003 as guidance. It is expected the contractor will need to remobilize to accomplish this work separately from work required in paragraph 6.1, 6.2, and 6.6. The government will provide a minimum of 5 days notice prior to the required start date.

6.6 The Contractor must provide the services of a Qualified Technical Representative who is familiar with the Wartsila Rudderstock Seal Type EL rudder seal system to provide government personnel advise on manufacturer's proprietary system information, assist government personnel with the proper installation of the seal, and ensure compliance with manufacturer's procedures and standards during system disassembly, inspection, and reassembly as applicable. It is expected the contractor will need to remobilize to accomplish this work separately from work required in paragraphs 6.1, 6.2, and 6.5. The government will provide a minimum of 5 days notice prior to the required start date.

7. GOVERNMENT FURNISHED INFORMATION (GFI):

Coast Guard Drawing 87 WPB 243-003, Rev -, Propulsion Shaft Details Coast Guard Coast Guard Technical Publication (TP) 4499, Jun 2018, SWBS 243, Stern Tube Seal-Model442C

Coast Guard Technical Publication (TP) 4500, September 2017, SWBS 233, Engine Change-OutGuide – Waterborne Main Diesel

Coast Guard Technical Publication (TP) 4506, Wartsila TM-EL-68839, Issue A, Mar 2005, Rudderstock Seal Type EL

Coast Guard Drawing 87 WPB 561-001, Rev M, Steering System Details Coast Guard Drawing 87 WPB 562-001, Rev A, Rudder Details

8. GOVERNMENT FURNISHED MATERIAL (GFM):

Wartsila EL Seals Kit PN: H75492-01 (NSN: 2040-01-565-9776) 2 ea.

9. GOVERNMENT FURNISHED EQUIPMENT (GFE): N/A

10. CONTRACTOR FURNISHED EQUIPMENT (CFE): Contractor shall furnish all specialty tools required to perform alignment.

11. CONTRACTOR FURNISHED MATERIAL (CFM): N/A

12. TRAVEL REQUIREMENTS: Travel to United States Coast Guard Base Ketchikan at

Place of Performance provide to meet contract requirements.

13. TRANSPORTATION OF EQUIPMENT/MATERIAL: Contractor is responsible for shipment of any required tools or equipment.

14. DATA DELIVERABLES: The contractor shall submit alignment finding reports as detailed is Paragraph 6.1 and 6.2 using the government provided forms.

15. SUB-CONTRACTING REQUIREMENTS: N/A

16. ACCEPTANCE PLAN: N/A

17. OTHER CONDITIONS/REQUIREMENTS: The Government will provide 110 VAC power and to the contractor upon request.

18. LIST OF ATTACHMENTS:

a. Shaft Alignment Survey Form

b. Rudder Alignment Survey Form

Appendix A: Shaft Alignment Survey Form

ALIGNMENT OFFSETS AND BEARING REACTIONS FORMS

NOTE

Negative bearing reactions are prohibited.

INITIAL ASSESSMENT - PORT

Location X offset

(negative, outboard)

Y offset

(negative, below target x axis)

RECOMMENDED CORRECTIONS (IF ANY) - PORT

Location X offset

(negative, outboard)

Y offset

(negative, below target x axis)

Expected bearing reactions at bearing axial centers

Rresultant

(bearing resultant force)

FINAL VERIFICATION - PORT

Location X offset

(negative, outboard)

Y offset

(negative, below target x axis)

INITIAL ASSESSMENT - STARBOARD

Location X offset

(negative, outboard)

Y offset

(negative, below target x axis)

RECOMMENDED CORRECTIONS (IF ANY) - STARBOARD

Location X offset

(negative, outboard)

Y offset

(negative, below target x axis)

Expected bearing reactions at bearing axial centers

Rresultant

(bearing resultant force)

FINAL VERIFICATION - STARBOARD

Location X offset

(negative, outboard)

Y offset

(negative, below target x axis)

Appendix B: Rudder Alignment Survey Form

LOCATION

DISTANCES FROM DATUM TO LETTERED POINT

A TO O B TO O C TO O D TO O

Upper bearing housing

Lower bearing housing (top)

Lower bearing housing (middle)

Lower bearing housing (bottom)