DEPARTMENT OF THE NAVY NAVAL SEA SYSTEMS · PDF fileS6437-BJ-MMC-010 0910-LP-110-4231 ... DEPARTMENT OF THE NAVY NAVAL SEA SYSTEMS COMMAND ... If applied in hazardous services, such

S6437-BJ-MMC-010 0910-LP-110-4231 REVISION 5

TECHNICAL MANUAL

FOR

SELF-CLEANING STRAINERS TYPES AH, DA, DH, SA, AND SH;

DESCRIPTION, OPERATION, AND MAINTENANCE

This manual supersedes and cancels s6437-BJ-MMC-010 dated 01 February 2008, and all changes thereto.

Distribution Statement A: Approved for public release; distribution is unlimited

DEPARTMENT OF THE NAVY NAVAL SEA SYSTEMS COMMAND

31 AUGUST 2010

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S6437-BJ-MMC-010 31 August 2010

IDENTIFYING TECHNICAL PUBLICATION SHEET FOR COMMERCIAL MANUAL

Manual was revised to incorporate TMDER N00181-08-JMB1 1. PURPOSE: This technical publication sheet is issued for the purpose of identifying and authorizing the following commercial manual for Navy use.

Manufacturer: The Hellan Strainer Company. 3249 East 80th Street. Cleveland, OH 44104-4395 Cage 1QZK3 Purchase Orders or Contract No.: TMDER N0081-08-JMB1 Requisition No.:

Equipment: Self Cleaning Strainers, Types AH, DA, DH, SA, and SH

National Stock Number: 0910-LP-110-4231 Title: SELF-CLEANING STRAINERS TYPES AH, DA, DH, SA, AND SH, DESCRIPTION, OPERATION, AND MAINTENANCE Date: 31 August 2010

2. FILE LOCATION: The above-described commercial manual is filed in . (Each library will fill this in if this identifying technical publication sheet is filed separately from the commercial manual.) 3. AUTHORITY NOTICE AND DISTRIBUTION STATEMENT:

Published by direction of Commander, Naval Sea Systems Command. Distribution Statement A: Approved for public release; distribution is unlimited.

FOR UNCLASSIFIED MANUALS NOTICE: Reproduction for non-military use of the information or illustration in this publication is not permitted. The policy for military use reproduction is established in OPNAVINST 5510.1B. This document contains copyright or proprietary materials. Infringement of copyright or proprietary materials may violate existing Federal laws and statutes and result in criminal penalties, imprisonment, or removal from office.

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TABLE OF CONTENTS

Chapter Page

1. GENERAL INFORMATION 1-1. General Information. ……………………………………………………… 1-1 1-2. Introduction. ……………………………………………………………… 1-1 1-3. Principles of Operation. …………………………………………………… 1-1

2. INSTALLATION

2-1. Installation. …………………………………………………………………2-1 2-2. Installation Prerequisites. ………………………………………………… 2-1 2-3. Strainer Position. ………………………………………………………… 2-1

3. CLEANING

3-1. Cleaning. ………………………………………………………………… 3-1 3-2. Manual Cleaning Procedures (AH, DH, and SH Type Strainers). ……… 3-1 3-3. Automatic Cleaning Procedures (DA and SA Type Strainers). ………… 3-1 3-4. Procedure. ………………………………………………………………… 3-2 3-5. Disposal Methods for Hazardous Material/Waste in the Tools, Parts Material,

and Test Equipment Block. ……………………………………………… 3-3

4. MAINTENANCE

4-1. Maintenance. ……………………………………………………………… 4-1 4-2. Strainer Maintenance Procedures. ………………………………………… 4-1 4-3. Preliminary Maintenance Procedures. …………………………………….. 4-1 4-4. Open, Remove, Clean, and Inspect Each Screen Assembly. ……………… 4-1 4-5. Scraper Blade Adjustment. ……………………………………………….. 4-1 4-6. Strainer Reassembly. ……………………………………………………… 4-2

5. CONTROL PANEL

5-1. General Operation. ………………………………………………………… 5-1 5-2. Operation. …………………………………………………………………. 5-1 5-3. Manual Operation. ………………………………………………………… 5-1 5-4. Automatic Operation. ……………………………………………………… 5-1

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TABLE OF CONTENTS (CONT’D)

Chapter Page

6. ACTUATORS

6-1. Operation (NIBCO). ……………………………………………………….. 6-1 6-2. Manual Operation (Model NE211, NE401, and NE500 Series). ………….. 6-1 6-3. Manual Operation (Model NE820 and NE830 Series. …………………….. 6-1 6-4. Inspection. ………………………………………………………………….. 6-1 6-5. Cover Removal. ……………………………………………………………. 6-1 6-6. Cover Replacement. ……………………………………………………….. 6-1 6-7. Maintenance. ………………………………………………………………. 6-1 6-8. Semi-Annual Maintenance Procedures. …………………………………… 6-2 6-9. Troubleshooting. …………………………………………………………… 6-2 6-10. Description (Worcester). …………………………………………………… 6-2 6-11. Options and Adjustments (Factory Installed). ……………………………… 6-3 6-12. Feedback Potentiometers (Single, Dual). ………………………………….. 6-7 6-13. I-75 Interface. ……………………………………………………………… 6-8 6-14. Position Indicator. …………………………………………………………. 6-10 6-15. Manual Operation. ………………………………………………………… 6-11 6-16. Maintenance and Troubleshooting. ………………………………………… 6-11 6-17. Electrical Requirements. …………………………………………………… 6-12

7. STRAINER MOTOR

7-1. Installation. ………………………………………………………………… 7-1 7-2. Installation – Mechanical. …………………………………………………. 7-1 7-3. Installation – Electrical. ……………………………………………………. 7-2 7-4. Operation. ………………………………………………………………….. 7-3 7-5. Maintenance. ………………………………………………………………. 7-4

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LIST OF ILLUSTRATIONS

Figure Title Page Number

1-1. Type SH Strainers, Principles of Operation. ……………………………………… 1-2 1-2. Type DH Strainer, Principles of Operation. ………………………………………. 1-3 1-3. Sight Flow Indicator (3 sheets). …………………………………………………… 1-4 3-1. Forward Wet Well Strainer. ………………………………………………………. 3-4 3-2. Aft Wet Well Strainer. …………………………………………………………….. 3-5 4-1. Strainer Assembly for 2” and 3” Type AH Strainers. …………………………….. 4-5 4-2. Strainer Assembly for 6” Type DA Strainer. ……………………………………… 4-7 4-3. Strainer Assembly for 3” Type DH Strainer. ……………………………………… 4-10 4-4. Strainer Assembly for 4” Type DH Strainer. ……………………………………… 4-12 4-5. Strainer Assembly for 6”, 8”, and 12” Type DH Strainer. ……………………….. 4-16 4-6. Strainer Assembly for 2-1/2” Type SA Strainers. ………………………………… 4-19 4-7. Strainer Assembly for 1-1/2”, 2”, 2-1/2”, and 3” Type DH Strainer. …………….. 4-22 4-8. Drive Assembly for 4”, 6”, 8”, 10”, and 12” Type DA Strainer Drive. ………….. 4-27 4-9. Drive Assembly for 2-1/2” and 3” Type SA Strainer. ……………………………. 4-28 5-1. Control Panel. …………………………………………………………………….. 5-3 5-2. Control Panel Schematic. …………………………………………………………. 5-5 6-1. Center-Off Position. ………………………………………………………………. 6-6 6-2. Single Potentiometer. ……………………………………………………………… 6-8 6-3. 120 VAC I-75 Actuator. ………………………………………………………….. 6-9 6-4. 10-23 Position Indicator. …………………………………………………………. 6-11 6-5. Electrical Schematic (Series 75). …………………………………………………. 6-13 6-6. Electrical Schematic Wiring Diagrams for Options (Series 75). …………………. 6-14 6-7. Worcester Type Actuators Sizes 10-22. ………………………………………….. 6-17 6-8. Worcester Type Actuators Sizes 25, 30. …………………………………………. 6-18 7-1. Motor Connection Diagrams. …………………………………………………….. 7-5 7-2. Strainer Motor. …………………………………………………………………… 7-6

LIST OF TABLES

Table Page Number

4-1. Parts List for 2” Type AH Strainer Assembly. …………………………………… 4-3 4-2. Parts List for 3” Type AH Strainer Assembly. …………………………………… 4-4 4-3. Parts List for 6” Type DA Strainer Assembly. …………………………………… 4-6

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LIST OF TABLES (CONT’D)

Table Page Number

4-4. Parts List for 3” Type DH Strainer Assembly. …………………………………… 4-9 4-5. Parts List for 4” Type DH Strainer Assembly. …………………………………… 4-11 4-6. Parts List for 6” Type DH Strainer Assembly. …………………………………… 4-13 4-7. Parts List for 8” Type DH Strainer Assembly. …………………………………… 4-14 4-8. Parts List for 12” Type DH Strainer Assembly. ………………………………….. 4-15 4-9. Parts List for 2-1/2” Type SA Strainer Assembly. ……………………………….. 4-17 4-10. Parts List for 1-1/2” and 2” Type SH Strainer Assembly. ………………………… 4-18 4-11. Parts List for 2-1/2” and 3” Type SH Strainer Assembly. ………………………… 4-21 4-12. Parts List for 4”, 6”, 8”, 10”, and 12” Type DA Strainer Drives. ………………… 4-23 4-13. Parts List for 2-1/2” and 3” Type SA Strainer Drives. ……………………………. 4-23 4-14. Parts List for 1-1/2” and 2” Strainer Screen Assemblies for Type SH Strainers. … 4-25 4-15. Parts List for 2-1/2” and 3” Strainer Screen Assemblies for Type SH Strainers. … 4-26 5-1. Parts List for Control Panel. ………………………………………………………. 5-2 6-1. Minimum Fuse Over Current Protection. …………………………………………. 6-5 6-2. Approximate Current Requirements per Motor. ………………………………….. 6-12 6-3. Actuator Cycle Time. ……………………………………………………………… 6-12 6-4. Parts List and Materials of Construction for Worcester Type Actuator Sizes 10-22. ………………………………………………………………………. 6-16 6-5. Parts List and Materials of Construction for Worcester Type Actuator Sizes 25, 30. ……………………………………………………………………… 6-16 7-1. Single Speed Motor Reduced Voltage Start Capability Chart. …………………… 7-2 7-2. Thermostat Contact Ratings. ……………………………………………………… 7-2 7-3. Bearing Lubrication Intervals. ……………………………………………………. 7-4

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S6437-BJ-MMC-010 TKKKK TKKK WARNING LSKJDFKLSJDF Sewage and gray water holding tanks and equipment may contain toxic or explosive gases. No personnel shall attempt system maintenance unless they have thoroughly read and become familiar with the safety requirements and precautions outlined in S9086-T8-STM-010 Naval Ships' technical manual Chapter 593 Pollution Control. Unless they follow the specific procedures outlined in this manual and the applicable MRCs. If these procedures cannot be followed due to some equipment malfunction, this maintenance shall be deferred until a suitable industrial facility becomes available. If necessary, deactivate the system and divert drains overboard until such facilities are available. (Page 3-2.) BKT BKT BKT WARNING BKT All sewage and gray water systems sanitary and hygienic procedures as described in paragraph as described in paragraph should be followed as they apply to the sewage VC/MSD system onboard CVN 77. (Page 3-2.) BKT BKT BKT WARNING BKT Electrical shock and/or explosion hazard. To avoid serious personal injury, death or property damage due to electrical shock, and/or ignition of hazardous atmosphere. SHUT OFF ALL POWER to the actuator before removing the actuator cover. (Page 6-2.) BKT BKT BKT WARNING BKT Series 75 actuators are electro-mechanical devices are subject to normal wear and tear. Actuator life is dependant upon application and environmental conditions. If applied in hazardous services, such as but not limited to, media temperature extremes, toxins, flammables, or other services where improper or incomplete operation could produce a safety hazard, it is incumbent upon the system engineer and user to provide proper warning devices such as temperature sensors, oxygen sensors, and flow sensors at elevated temperatures the duty cycle has to be derated, consult factory. Worcester also recommends the auxiliary limit switched be used for monitoring and/or electrical interlock, heater with thermostats, as well as drain/breather fitting (v53 option) are recommended for humid environments when moisture may condense inside the housing. Please note the weatherproof enclosures will "breathe" over time and condensation within the housing will result. (Page 6-2.)

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WARNING MOVING PARTS can in jure. Before starting the motor, remove all unused shaft key s and loose rotating parts to prevent them from flying off and causing bodily injury. (Page 7-1.)

WARNING ELECTRIC SHOCK can kill. Disconnect input power s upply before installing or servicing m otor. Motor leads can short and cause damage or injury if not well secured and insulated. Use washers, lock washers, and the largest bolt size which will pass through the motor lead terminals in making connections. Insulate the connection equal to or better than the insulation on the supply conductors. Properly ground the motor. (Page 7-2.)

WARNING ELECTRIC SHOCK can kill. Connect the motor to a good earth ground per the National Electric Code and local codes to limit the potential to ground in the event of contact between live electrical parts and the metal exterior. (Page 7-3.)

WARNING MOVING PARTS can injure. Before starting the motor, remove all unused shaft keys and loose rotating parts to prevent them from flying off and causing bodily injury. ELECTRIC SHOCK can kill. Do not operate with covers removed. Do not touch electrically live parts. (Page 7-3.)

WARNING ELECTRIC SHOCK can kill. Internal parts of the m otor may be at line potential even when it is not rotating. Disconnect all input power to t he drive and motor before performing any maintenance. (Page 7-3.)

CAUTION Do not exceed torque of manual override shaft. (Page 6-1.)

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For the SA and DA Type (Automatic) System: If thepressure differential still exceeds 4 PSID higher than the normal differential pressure when clean, the switchsends a signal to the controller which opens the overboard discharge valve(s) and energizes thestrainer screen motor(s), to rotae the screen(s).After a 15-second cleaning cycle, the strainer screenmotor)s) will stop, and the discharge valve(s) willclose. The strainer screen motor(s) will remain idle and the discharge valve(s)will remain closed until the next cleaning cycle. CVN 77 VC/MSD Wet Well Self-Cleaning Strainers do not use system fluid for flushing strainers. The Wet Well Strainers on board CVN-77 are equipped with a seawater back flushing capability in each VC/MSD pump room.

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1-1.1

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S6437-BJ-MMC-010

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For the SA and DA Type (Automatic) System: If the pressure differential still exceeds 4 PSID higher than the normal differential pressure when clean, the switch sends a signal to the controller which opens the overboard discharge valve(s) and energizes the strainer screen motor(s), to rotate the screen(s).After a 15-second cleaning cycle, the strainer screen motor(s) will stop, and the discharge valve(s) will close. The strainer screen motor(s) will remain idle and the discharge valve(s)will remain closed until the next cleaning cycle. CVN 77 VC/MSD Wet Well Self-Cleaning Strainers do not use system fluid for flushing strainers. The Wet Well Strainers on board CVN-77 are equipped with a seawater back flushing capability in each VC/MSD pump room.

S6437-BJ-MMC-010

1-4 Figure 1-3. Sight Flow Indicator (Sheet 1 of 3)

S6437-BJ-MMC-010

Figure 1-3. Sight Flow Indicator (Sheet 2 of 3)

1-5

S6437-BJ-MMC-010

1-6 Figure 1-3. Sight Flow Indicator (Sheet 3 of 3)

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S6437-BJ-MMC-010

3-1

CHAPTER 3 CLEANING

3-1. CLEANING 3-2. Manual Cleaning Procedures (AH, DH and SH Type Strainers): When the differential pressure exceeds 4 PSID higher than the normal differential pressure when clean, perform the following manual cleaning procedures.

a. Open the overboard discharge valve.

b. Open flushing line cut-out valve(s) completely and watch the sight flow indicator, if installed.

c. Rotate each hand wheel two (2) revolutions.

d. When sight flow indicator shows no entrained solids (i.e., a clear flow), close the flushing line cut-out valve. Continue flushing strainer for approximately 1 minute to ensure all debris is flushed overboard.

e. If the differential pressure still exceeds 4 PSID higher than the normal differential pressure when clean, repeat steps a through d.

3-3. Automatic Cleaning Procedures (DA and SA Type Strainers): When the differential pressure exceeds 4 PSID higher than the normal differential pressure when clean, the high pressure switch sends a signal to controller which opens the discharge valve and energizes the strainer screen motor(s) which will rotate the screens for 15 seconds.

a. The debris falls into the bottom of the

strainer assembly and is discharged out the drain connection.

b. After the 15-second cleaning cycle,

the strainer screen motor(s) will stop, and the discharge valve(s) close(s). The strainer screen motor(s) will remain idle and the discharge valve(s) will remain closed until the next automatic cleaning cycle.

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For CVN 77 sewage VC/MSD system Wet Well strainers only. The VC/MSD Wet Well Self-Cleaning strainers do not use system fluid for flushing the strainers. Onboard CVN 77, the Wet Well strainers are equipped with a seawater back flushing capability in each VC/MSD pump room.

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NOTE

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3-1

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3-2

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3-4. MANUAL CLEANING PROCEDURES FOR CVN 77 SEWAGE VC/MSD WET-WELL SELF-CLEANING DH STRAINERS.

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NOTE

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Accomplish when differential pressure observed is above 4 PSI above normal operating pressure and/or when VC/MSD Wet Well Discharge pump suction pressure falls below normal operating pressure.

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WARNING

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Protective clothing is required where contact with sewage is a possibility.

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WARNING

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Personnel involved in MSD maintenance should not eat, drink, or smoke until hands and face have been thoroughly washed with soap and water. Personnel shall wash hands, exposed portion of arms and face with mild soap (facial) and water.

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WARNING

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Personnel must, at all times, observe all safety regulations while performing maintenance or repairs. Sewage is a common mode of transmission for parasitic microorganisms such as bacteria, fungi, protozoa, viruses, and worms. Some of these may be pathogenic, meaning they have the capability of causing serious communicable diseases, and even death. Most diseases associated with sewage result from hand-to-mouth transfer of the pathogenic organisms.

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a. Inform cognizant authority of required maintenance.

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WARNING

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Personnel must; pump down the VC/MSD tank to 75% (approximately 36,000 gallons FWD and 38,000 gallons AFT)), pump down the Wet Well tank to 15% pump cut-out level (approximately 132 gallons Fwd and 207 gallons Aft), secure the Vacuum Collection ejector pumps, secure all graywater collection when possible before performing this maintenance action in order to prevent accidental overflow of VC/MSD and Wet Well tanks and back up of Graywater sources.

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All sewage and gray water system sanitary and hygienic procedures as described in paragraph should be followed, as they apply to the sewage VC/MSD system onboard CVN 77.

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WARNING

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For CVN 77 sewage VC/MSD system Wet Well strainers, follow applicable safety precautions for sanitary waste systems.

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Sewage and gray water holding tanks and equipment may contain toxic or explosive gases. No personnel shall attempt system maintenance unless they have thoroughly read and become familiar with the safety requirements and precautions S9086-T8-STM-010 Naval Ships' technical manual Chapter 593, Pollution Control. Unless they follow these specific procedures for this maintenance outlined in this manual and the applicable MRCs. If these procedures cannot be followed due to some equipment malfunction, this maintenance shall be deferred until a suitable industrial facility becomes available. If necessary, deactivate the system and divert drains overboard until such facilities are available.

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WARNING

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WARNING

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Ensure all tag-out procedures are in accordance with current shipboard instructions.

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WARNING

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S6437-BJ-MMC-010

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Wash hands only with full strength surgical detergent with water and lather, followed by thorough rinse, before eating, drinking, or smoking.

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3-4.1. Clean Wet Well Effluent Self-Cleaning Strainers.

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a. Ensure VC/MSD System is aligned for discharge overboard/pier.

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b. Secure VC/MSD Wet Well pumps 1-1 & 1-2 for Fwd and VC/MSD Wet Well pumps 2-1 & 2-2 for Aft.

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c. Close the following valves: Wet Well tank suction valve. Wet Well discharge pump suction and discharge valves. Valves 1 through 5 on Figure 3-1 or Figure 3-2 respective.

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d. Open Strainer flushing discharge line sight flow indicator isolation valves 6 and 7 in Figure 3-1 (Fwd) Figure 3-2 (Aft) respective).

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e. Perform strainer flushing by opening valve 8 in Figure 3-1 (Fwd) Figure 3-2 (Aft).

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f. Rotate HELLAN Wet Well Strainer Hand Wheels While Observing the strainer sight glass for a minimum of 30 seconds each.

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g. Once Clear Flow of Seawater is observed in sight glass flushing is complete.

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h. Secure valves 8, 6 & 7.

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i. Restore VC/MSD System Operation by opening valves 1 through 5 on Figure 3-1 (Fwd) and Figure 3-2 (Aft) respective).

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j. Remove gloves and faceshield. ajjjdf k. Remove safety tag. sjjjs l. Return equipment to normal service.

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3-5. DISPOSAL METHODS FOR HAZARDOUS MATERIAL/WASTE IDENTIFIED IN THE TOOLS, PARTS, MATERIAL, AND TEST EQUIPMENT BLOCK.

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3-5.1. Method 1. aknjsnduan If shipboard HAZMINCEN exists, turn in all spent HM and items contaminated with HM to the shipboard HAZMINCEN for collection, processing, and disposal. Containerize waste in original container or use standard container as listed in Appendix C23-A of OPNAVINST 5100.19 Series Navy Occupational Safety and Health (NAVOSH) Program Manual for Forces Afloat and the Naval Ships' Technical Manual (NSTM), S9086-T8-STM-010 CH-593, Pollution Control. Store in accordance with OPNAVINST 5100.19 Series, Appendix C23-A and D15-A-1. Mark, label, or tag the container with the specific contents and any information on the contaminants. This information must also be provided on the DD Form 1348-1A at the time of off-loading. Empty container guidance is available in the CNO Policy Guide for Shipboard Hazardous Material Container Disposal, OPNAV P-45-114-95. Contact the receiving shore activity (e.g., Fleet and Industrial Supply Center and Public Works Center) to determine the appropriate local off-loading requirements.

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3-3

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Refer to Figure 3-1 for Forward Wet Well Strainer and Figure 3-2 for Aft Wet Well Strainer.

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b. De-energize Vacuum ejector and Wet Well discharge pump circuit and tag "Do Not Operate."

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NOTE

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S6437-BJ-MMC-010

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Figure 3-1. Forward Wet Well Strainer

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S6437-BJ-MMC-010

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3-4

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Figure 3-2. Aft Wet Well Strainer

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S6437-BJ-MMC-010

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3-5

WARNING

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This information must also be provided on the DD Form 1348-1A at the time of off-loading. Empty container guidance is available in the CNO Policy Guide for Shipboard Hazardous Material.

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WARNING

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WARNING

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Follow procedures outlined in NSTM Chapter 074, Volume 3, Gas Free Engineering.

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3-6

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S6437-BJ-MMC-010

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S6437-BJ-MMC-010

Table 4-10. Parts List for 1-1/2” and 2” Type SH Strainer Assembly FIG & INDEX

NUMBER

PART NO. DESCRIPTION QUANTITY

4-7

0153SH-S0401211 0152SH-S0401212 0203SH-S0201211 0202SH-S0201212

1-1/2” SH Strainer, 150 PSI 1-1/2” SH Strainer, 250 PSI 2” SH Strainer, 150 PSI 2” SH Strainer, 250 PSI

1 015S11-01211 015S11-01212 020S11-01211 020S11-01212

1-1/2” SH StrainerBody-C95800, 150 PSI 1-1/2” SH Strainer Body-C95800, 250 PSI 2” SH Strainer Body-C95800, 150 PSI 2” SH Strainer Body-C95800, 250 PSI

1 1 1 1

2 015-121-01 Screen Cover Plate 1 3 015-131-16 Shaft-Monel 1 4 015-133-01 Handwheel-Bronze 1 5 060-24-16 Cover Plate, Shaft Collar 1 6 See Chart A on

Page 4-25 Strainer Screen Assembly 1

7 015-134-15 Scraper Blade-Double Edge 1 8 015-135-15 Clamp Bar 1 9 ZH2252 Collar-Shaft 1 10 015-146-01 Inspection Cover 1 13 ZH2272 Spacer 2 14 ZH1125A1 Key, 3/16” sq. X 1/2” -Monel 1 15 ZH1125A10 Key, 3/16” sq. X 3/4” -Monel 1 16 ZH10096F Nut, Hex 5/8”-11UNC-2B, Monel 1 17 ZH10096F Nut, Hex 5/8”-11UNC-2B, Monel 1 18 Z1057AT O-Ring-Viton 1 19 Z1057B3 O-Ring-Viton 1 20 Z1057AS O-Ring-Viton 1 23 ZH1058 Label-Screen Rotation-Mylar 1 24 ZH10069D6 Hex Head Screw 3/8”-16 X 1-1/4” -Monel 1 25 ZH10069D5 Hex Head Screw 3/8”-16 X 1-1/8” -Monel 6 26 ZH10069B2 Hex Head Screw 1/4”-20 X 5/8” -Monel 3 27 ZH10069D4 Hex Head Screw 3/8”-16 X 1” -Monel 6 29 ZH177B Nameplate 1

4-18

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