SOR18-016TELEFLEXREPAIRSUPSOWSMART85190_(1).docx

1.0 ABSTRACT:

1.1 This item describes the repair of various TELEFLEX systems on USNS Supply.

2.0 REFERENCES:

2.1 References:

2.1.1 S.M.A.R.T. ITEM # 85190

2.1.2 S.M.A.R.T. ITEM #85191

2.2 Enclosures:

2.2.1 MS

3.0 ITEM LOCATION / DESCRIPTION:

3.1 Location/Quantity:

3.1.1 AMR PUMP ROOM MD-V-6 valve

3.1.2 JP5 Pumproom Fm-300 Firemain valve

3.1.3 JP5 Pumproom Fm-301 Firemain valve

3.1.4 DFM Pumproom MD-V-27 valve

3.1.5 DFM Pumproom FM-302 Firemain valve

4.0 GOVERNMENT FURNISHED EQUIPMENT/ MATERIAL: None

5.0 NOTES:

5.1 All drawings are for reference only. These drawings may not reflect the current conditions on the ship.

5.2 References will be provided if contractor does not already possess documentation.

6.0 QUALITY ASSURANCE REQUIREMENTS: NA

7.0 STATEMENT OF WORK REQUIRED:

7.1 Contractor shall contact the Chief Engineer and gain permission prior to commencing repairs or changing valve position. Tag out all affected systems as per the Chief Engineer.

7.2 Complete repairs to existing TELEFLEX Reach rod systems as per attached survey results:

7.2.1 MD-V-6 Suction Remote Valve Operating System: The Remote Operating Station is missing the indicator Scale. The existing system is damaged and does not operate. There is physical damage to the Conduit in the lower level of the access trunk. The existing valve is a butterfly valve with an attached gearbox that requires 10-1/2 turns to fully operate. Replace the existing Valve Coupling

7.2.2 FM-300 Firemain Remote Valve Operating System: The existing Remote Operating System is broken and does not operate. There is physical damage to the conduit routed in the bilge. The existing valve is a 6” angle globe and required 9-1/2 turns to fully operate at the valve. The existing valve hand wheel is loose and requires to be fully tightened.

7.2.3 FM-301 Firemain Remote Valve Operating System: The existing Remote Operating System is broken and does not operate. The existing valve is a 6” angle globe and required 9-1/2 turns to fully operate.

7.2.4 MD-V-27 Overboard Remote Valve Operating System: The existing Remote Operating System is broken and does not operate. This valve requires 21-1/2 turns to operate. The remote operating system is fitted with a 16:1 gearbox which will require 344 revolutions at the remote hand wheel to fully open the valve.

7.2.5 FM-302 Firemain Remote Valve Operating System: The existing valve was frozen and did not operate at the time of the ship check. The existing should be repaired or replaced prior to Remote Valve Operating System repairs. The valve Station Universal joint is missing. The valve coupling quick disconnect is broken. The existing system operates properly, however this valve requires 9-1/2 turns to operate. The remote operating system is fitted with a 16:1 gearbox which will require 152 revolutions at the remote hand wheel to fully open the valve.

7.3 Contractor to provide all labor and specialized assistance for repairs, to include any hot-work, staging, dye penetrant testing or gas free certificates.

7.3.1 Tech

7.4 Preparation of Drawings: None.

8.0 GENERAL REQUIREMENTS: None

USNS SUPPLY

(T-AOE6)

TELEFLEX REPAIR

CHECKING PROCEDURES FOR INSTALLATION WORK AND WIRING FOR INSTALLED EQUIPMENT

EQUIPMENT CHECK LIST, Verify all the equipment (Location and Serial Number) Power Supply #1

P/N:

Power Supply #2

P/N:

Power Supply #3

P/N:

Power Supply #4

P/N:

Controller (Forward)

P/N:

Controller (Aft)

P/N:

Anode #1

P/N:

Anode #2

P/N:

Anode #3

P/N:

Anode #4

P/N:

Anode #5

P/N:

Anode #6

P/N:

Anode #7

P/N:

Anode #8

P/N:

Anode #9

P/N:

Anode #10

P/N:

Anode #11

P/N:

Reference Cells #1

P/N:

Reference Cells #2

P/N:

Reference Cell #3

P/N:

Reference Cell #4

P/N:

Stbd Shaft Ground Assembly

P/N:

Port Shaft Ground Assembly

P/N:

Additional Equipment

P/N:

Additional Equipment

P/N:

USNS ARCTIC

(T-AOE 8)

ENCLOSURE 2.2.1 - TEST AND INSPECTION REPORT FOR AOE CAPAC SYSTEMS

Enclosure 2.2.1 – Page 1

CHECKING PROCEDURES OF PRELIMINARY OPERATION TEST FOR INSTALLED EQUIPMENT

POWER SUPPLIES

c. Input Voltage Measure with a Voltmeter the shipboard power voltage and record it:

Ter. A and B

Ter. B and C

Ter. C and A

d. Anode Potential Measure with a DC-Voltmeter (high impedance) voltage developed between an unenergized platinum anode and a steel hull. First remove fuse at the power supply to make measurement.

Anode 1 to Ground

Anode 2 to Ground

Anode 3 to Ground

Anode 4 to Ground

Anode 5 to Ground

Anode 6 to Ground

Anode 7 to Ground

Anode 8 to Ground

Anode 9 to Ground

Anode 10 to Ground

Anode 11 to Ground

e. Reference Electrode Measure with DC voltmeter, voltage Potential developed between the reference cell lead and the ship hull Reference Electrode 1 to Ground

Reference Electrode 2 to Ground

Reference Electrode 3 to Ground

Reference Electrode 4 to Ground

f. Press Reference cell buttons SW1 and SW2 and record voltmeter readings Ref. Cell #1 reading

Ref. Cell #2 reading

Ref. Cell #3 reading

Ref. Cell #4 reading

Enclosure 2.2.1 – Page 2

MANUAL OPERATION

The following procedure is for Manual Operation

a. Place the Auto/manual switch to the Manual Position

b. With all Power Supply DC output fuses connected, turn the circuit breaker on. Turn the Manual Control setting to full counter-clockwise.

c. Record the voltmeter reading_______________

d. Measure with a DC Voltmeter the output voltage between the anode and the ship's hull.

Anode 1 to Ground

Anode 2 to Ground

Anode 3 to Ground

Anode 4 to Ground

Anode 5 to Ground

Anode 6 to Ground

Anode 7 to Ground

Anode 8 to Ground

Anode 9 to Ground

Anode 10 to Ground

Anode 11 to Ground

e. Slowly rotate the manual control setting in a clockwise direction until the voltmeter reads 50% of the maximum rating and repeats step C. It may be necessary to adjust the current limit (See reference 2.1.4).

f. Slowly rotate the Manual Control setting to full clockwise and repeat Step C.

AUTOMATIC OPERATION

The following procedure is for automatic operation.

a. Disconnect the control reference cable

b. Connect a Reference Cell Simulator lead to Ter. 4(+) to Ter. 8(-) and adjust Simulator voltage to 0.95 volts.

c. Place the Auto/Manual switch to the Automatic position.

d. Place all Anode Fuses into the Power supply and turn the circuit breaker (CB1) on.

e. Adjust the automatic control setting until the voltmeter reads 0.85 volts.

f. Voltmeter normally displays the setpoint voltage. Vary the ref. Cell Simulator voltage (R1) between 0.95 and 0.75 volts.

g. Record readings for M1 (Ammeter) _______________ and M2 (Voltmeter) ___________________

Enclosure 2.2.1 – Page 3

h. Measure the output voltage between the anodes and the ship's hull with a voltmeter.

Anode 1 to Ground

Anode 2 to Ground

Anode 3 to Ground

Anode 4 to Ground

Anode 5 to Ground

Anode 6 to Ground

Anode 7 to Ground

Anode 8 to Ground

Anode 9 to Ground

Anode 10 to Ground

Anode 11 to Ground

CURRENT LIMIT

Following procedure is to adjust the Current Limit

a. Place the Auto/Manual switch to the Manual position

b. Rotate the Current Limiting control to full counter-clockwise

c. Rotate the Manual control setting to full clockwise

d. Record reading on the Ammeter (M1) _____________________

e. Slowly rotate current limiting control clockwise and adjust the Power Supply for maximum rated current.

f. Record reading on the Ammeter (M1) _____________________

ALARM LAMP TEST (IF APPLICABLE)

Change the control reference cell simulator voltage and verify that the Alarm Lamp functions normally.

1. Under Protection Alarm Lamp (LT2, Red Lamp) Required Value: Alarm lamp to light below 0.75 VDC

1. Over Protection Alarm Lamp (LT2, Red Lamp) Required Value: Alarm lamp to light above 0.95 VDC

Enclosure 2.2.1 – Page 4

REMOTE MONITOR PANEL (IF APPLICABLE)

Verify that the equipment is installed in accordance with the specification

1. Cable Connection Required Condition: Proper connection and condition

1. Zero Point

1. Lighting Test for Meter readings of PS#1 _________________ Alarm Indicator Power Supply lights: PS#2 _________________

SHAFT HULL VOLTMETER (IF APPLICABLE)

Part Number: ____________________

CABLE CONNECTION

Check for proper connections of all the terminals and tightness of all the fittings.

Cable Connection Required Condition: Proper connection and condition

Enclosure 2.2.1 – Page 5

ZERO POINT

Set the mechanical zero on the front panel meter Zero Point

Shaft Ground Assembly Part Number: ______________________________________ Number of Shafts: __________________________________ Condition of Silver Band: ____________________________ Condition of Grounding Brushes: ______________________ Condition of Cable Connection to Hull: _________________ Notes:_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Enclosure 2.2.1 – Page 6