0906_A_RIDE CONTROL SYSTEM MAINT REV A.docx

USNS SPEARHEAD

(JHSV 1)

RIDE CONTROL SYSTEM MAINTENANCE

1.0 ABSTRACT:

1.1 This item describes Annual Inspection and Maintenance for the Interceptors and Single Cantilever Foils of the Ride Control System.

2.0 REFERENCES:

2.1 DWG. Roll Fin Mechanical Assy. AUSTAL A318 ROLL FIN MECHANICAL ASSY.

2.2 DWG. Roll Fin Mechanical Assy. AUSTAL A318 ROLL FIN BEARING ASSY.

2.3 RCS Installation Instruction DWG JHSV 510 A100

2.4 SPD RCS Report 12-2014

3.0 ITEM LOCATION/DESCRIPTION:

3.1 Location/Quantity

3.1.1 Single Cantilever Foil Port Fwd 4-7-2

3.1.2 Single Cantilever Foil Stbd Fwd 5-7-1

3.1.3 Interceptor Aft Peak Port 3-78-2

3.1.4 Interceptor Aft Peak Stbd 3-78-2

4.0 GOVERNMENT FURNISHED EQUIPMENT/ MATERIAL / SERVICE:

4.1 None

5.0 NOTES:

5.1 The contractor and all subcontractors, regardless of tier must consult the General Technical Requirements (GTR) to determine applicability to this work item. In performance of this work item, the contractor and all subcontractors regardless of tier must comply with the requirements of all applicable GTR’s.

5.2 The contractor and all subcontractors, regardless of tier are advised to review other work items under this contract to determine their effect on the work required under this work item. Many of the definitions relating to performance of this work item are found in Work Item 001.

6.0 QUALITY ASSURANCE REQUIREMENTS: None additional.

7.0 STATEMENT OF WORK REQUIRED:

7.1 Contractor shall furnish an AUSTAL USA Authorized Service Representative to perform the following.

7.2 Furnish labor and materials to replace Port and Starboard Single Cantilever Foil (SCF) Shaft Seals.

7.2.1 4EA Shaft Seals It 35 PN 98002

7.3 For Single Cantilever Foils, Perform inspection of Upper/ Lower level Clevis Pins, Upper/ Lower Hydraulic Cylinder Thrust Washer.

7.4 Grease Upper/ Lower Actuator Spherical Bearings.

7.5 For Interceptors, Inspect the following; Earth Straps, Inspect Cylinder Rod Surface Condition.

7.5.1 Inspect Lower Interceptor Bearings, Clevis Bearing, Skeg Bearings, And Hydraulic Cylinders.

7.6 Furnish labor and materials to replace Stbd skeg bearing at interceptor jet fence. Reference 2.4.

7.7 Perform inspection of Single Cantilever Foil P & S Taper Bearing Bush assemblies as assembled. Check all hardware and check the housing bolts by torque wrench per 2.3. Furnish condition report of torque settings.

7.8 All lubricants used shall be O.E.M. compatible Shell Products.

7.9 Perform full operational test upon completion with vessel representative. Test shall include a dock trial with Austal representative.

7.10 Perform inspection and adjustment of the hydraulic filter unit pressure switches.

7.11 Perform an inspection of Ride Control System Hydraulic System.

7.12 Furnish a condition Report of Findings and work performed.

7.13 Manufacturer’s Representative:

Terry Kennedy Post Delivery Program Manager Austal USA Tel 251 445 5129 Cell 251 222 7863 Terry Kennedy <terry.kennedy@austalusa.com>

8.0 General Requirements: NONE

0906-2