WI 0451 A TAKE-CCSI ANNUAL RADAR SERVICE - Revised 5-24-21.doc

USNS McLean

( TAKE 12 )

1.0 ABSTRACT

This work item describes the requirements to inspect and service the ships radar systems.

2.0 REFERENCES/ENCLOSURES

2.1 References:

2.1.1 MS0113-D04-1438, Radar System: X-Band, S-Band, Remote Display Bridge-Master

2.1.2 5007816, Radar System: X-Band, S-Band, Remote Display Vision-Master FT

2.0 IMO MSC.192 (79), Adoption of the Revised Performance Standards for RADAR Equipment

2.2 Enclosure:

2.0 Table 2 of Reference 2.1.3, Minimum Detection Ranges in Clutter-free Conditions

3.0 ITEM LOCATION/DESCRIPTION/QUANTITY

3.1 Location:

3.1.1 Bridge, Fr. 07-58-0

3.1.2 IC Radar and Gyro Room, Fr. 07-61.5-2

3.2 Description/Quantity:

4.0 GOVERNMENT FURNISHED EQUIPMENT/MATERIAL/SERVICE: 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 GTRs including but not limited to GTRs 1 through 7, 22, 23, 28, and 29.

5.2 The contractor and all subcontractors regardless of tier are advised to review other work items under this contract, including but not limited to Work Items 020, 021, 023, 024, and all 0400 series items 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.

5.3 THIS SHIP CONTAINS HIGH VOLTAGE (HV) ELECTRICAL SYSTEMS. OBEY ALL POSTED AND VERBAL INSTRUCTIONS REGARDING SAFETY AND EXCLUSION FROM HIGH VOLTAGE AREAS. AT NO TIME APPROACH, WORK ON, OR ENTER A HIGH VOLTAGE AREA WITHOUT PROPER AUTHORIZATION.

5.4 THE T-AKE CLASS ELECTRICAL COLOR CODING DOES NOT FOLLOW CONSISTENT COLOR SCHEME. THE SHIP IS KNOWN TO HAVE CURRENT CARRYING CONDUCTORS COLORED GREEN, BLUE, BLACK, AND WHITE. ASSUME ALL ELECTRICAL CABLES ARE ENERGIZED UNTIL TESTED AND PROVEN OTHERWISE. TEST ALL ELECTRICAL CABLES TO ENSURE THEY ARE DE-ENERGIZED PRIOR TO WORKING ON THE ITEM.

5.5 The radar antenna emits electromagnetic radio frequency (RF) energy which can be harmful, particularly to your eyes. All personnel are to be trained on the risks and safety procedures.

6.0 QUALITY ASSURANCE REQUIREMENTS: None additional

7.0 STATEMENT OF WORK REQUIRED

7.1 Provide and operate equipment and supply all services and assistance to accomplish the inspection and servicing of the radars using References 2.1.1 through 2.1.3 as guidance.

7.2 Coordinate with the Chief Engineer for the isolation and lock-out/tag-out of any equipment or systems. Prevent the potential risk of being struck by the rotating antenna while men are aloft. Turn off the radar power switch before servicing the antenna unit. Post a warning sign near the switch indicating men are aloft and it should not be turned on while the antenna is being serviced.

7.3 All work shall only be accomplished by experienced and qualified personnel. They are also to be trained in radar and electrical safety to avoid personnel injury. As such the worker must be fully aware of the risks associated with his surroundings and be fully knowledgeable of health and safety standards.

7.4 Temporarily remove access panels for cleaning and inspection. Retain and mark all fasteners for reinstallation.

7.5 Record the running hours of the Antenna motors, Monitor displays and Magnetrons.

7.6 Record the version of software loaded on the systems.

7.7 Visually inspect the physical condition of the antennas, processors, monitors, control stations, wave guides and wiring for any damage, corrosion, contamination, deterioration or signs of overheating.

7.0 Temporarily open antenna covers to check terminal strips and plug connections inside. Check for loose connections and contacts and plugs for proper seating. Inspect the rubber gaskets on these covers for deterioration.

7.0 Inspect the Antenna drive mechanism.

7.0 Check processors, monitors, and control stations for loose connections and contacts and plugs for proper seating. Verify all grounds straps and cable shielding are secure and in good condition.

7.0 Check all foundations, bracing, fittings, wireways, bolts and clamps for condition and tightness.

7.0 Check all stuffing tubes and cable transits verifying all penetrations are watertight.

7.0 Clean the Antenna Radiators of all dirt, salt and debris using a soft cloth, fresh water and mild soap detergent. Inspect for cracks on the radiator surface.

7.0 Thoroughly clean the processors, monitors and control stations with vacuum, brush and lint free rags. Use a soft cloth to clean the monitor screens. If available, use an anti-static spray. Water, isopropyl, alcohol and similar nonabrasive cleaning fluids may also be used to clean the screen. Do not use solvents or chemical-based cleaners. Check for loose connections and contacts and plugs for proper seating. Verify all grounds straps and cable shielding are secure and in good condition.

7.0 Replace the following components:

7.0 All fan filters (annual)

7.0 All fuses (annual)

7.0 The Magnetrons

7.0 6,000 hrs. for Sperry Vision Master

7.0 The following items are based on open/inspect and shall be replaced on the basis of a condition report;

7.0 The hard disk in Processor Unit (10 yrs. for Sperry Vision Master)

7.0 The Batteries (as recommended by OEM or 5 years)

7.0 Check and adjust alignment with ships Gyro systems. The accuracy of azimuth alignment of the radar presentation should be within 0.5°.

7.0 Test, inspect and verify proper operation of all features, warnings and alarms of the radar systems using Manufacturer and IMO requirements as guidance. To include:

7.0 Display Mode: True Motion, North Up and Course Up

7.0 Independent, Interswitch and Repeater modes

7.0 Range Scales and Range Rings

7.0 Auto and manual target acquisition

7.0 Range and Bearings

7.0 Range detection, see Table 2 below

7.0 Target Tracking

7.0 ARPA

7.0 AIS

7.0 Closest Point of Approach (CPA) and predicted Time to CPA (TCPA)

7.0 Target Data: actual range of target, actual bearing of target, predicted target range at the CPA, predicted time to CPA (TCPA), true course of target, true speed of target

7.0 AIS Target Data: ship’s identification, navigational status, position, range, bearing, COG, SOG, CPA and TCPA.

7.0 Operation with SARTs and RADAR beacons

7.0 Watch Zones (infringe limits)

7.0 Target Trails

7.0 Heading Lines, Electronic Bearing Lines (EBLs) and Parallel Index lines (PI)

7.0 Routes and Waypoints

7.0 Collision avoidance

7.0 Operational Alarms

7.0 Display of Charts (if applicable)

7.0 Provide a condition report to the MSCREP by individual radars summarizing all as found conditions to include running hours and revision of software and any recommended parts and repairs.

7.0 Upon approval, reinstall all access panels and covers using existing fasteners leaving the radars in a ready for service condition. The MSCREP and Chief Mate shall inspect the radar antennas prior to reinstalling any covers.

7.0 Upon completion of repairs, adjustments and tests optimize and tune the systems. Demonstrate satisfactory operation of the ship's radar systems to the MSCREP, Captain and Navigator.

7.0 Provide four (4) hours of onboard training to the ship’s Crew.

7.0 Reports:

7.0 When inspection, service and testing reveal any deficiency a condition report is to be submitted to the MSCREP with recommended repairs and parts required. Submit three (3) typewritten copies and one (1) electronic copy in Portable Document Format (PDF).

7.0 Submit a report that includes “as released” condition of the radars. Submit three (3) typewritten copies and one (1) electronic copy in Portable Document Format (PDF).

7.0 All reports and checklists are to be completed and signed by the person who carried out the inspection and maintenance work and countersigned by the Company’s representative.

7.0 Painting:

7.0 Prepare, prime, paint and restore all new, soiled, and disturbed surfaces to match surrounding surfaces.

7.0 Manufacturer’s Representative:

7.0 Provide the services of a Manufacturer’s Authorized Technical Representative to perform any and all system tests and adjustments to ensure proper operation of the RADAR systems using manufacturer’s performance specifications as guidance.

7.0 Provide the MSCREP with a signed letter of qualification from the original equipment manufacturer and certificate of training for the radar systems identified in 3.0 prior to the start of any work.

7.0 The Manufacturer's Representative is to ride the ship for Sea Trials demonstrating satisfactory operation of the radar systems at sea.

7.0 Preparation of Drawings: None

8.0 GENERAL REQUIREMENTS: None additional

Enclosure 2.2.1

TABLE 2 of Reference 2.1.3

Minimum Detection Ranges in Clutter-free Conditions

(NM)

S-Band

(NM)

Small vessel of length 10 m with no radar reflector

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