DC_R-S-1570.pdf

U.S. COAST GUARD

COMPUTERIZED MAINTENANCE SYSTEM

DAMAGE CONTROL

R-S-1570

REV'D 08/31/20

1 INSTALLED FIXED CO2 SYSTEM CHECK/SERVICE

SYSTEM:

N3 - Firefighting systems - General

SUBSYSTEM:

N-330 CO2 Flooding systems

COMPONENT:

CO2 Fire Suppression System (87), P/N: 87WPB 555-001, CAGE: 62558, NIIN: N/A CO2 Fire Suppression System (100), P/N: 87WPB 555-001, CAGE: 62558, NIIN: N/A CO2 Fire Suppression System (399), P/N: 400WAGB-4803-12, CAGE: 33525, NIIN: N/A CO2 System, Emergency Gen. Room (175), P/N: 175-WLM-555-001-EMER.GEN.RM, CAGE: 33525, NIIN: N/A

CO2 System, Engine Room (175), P/N: 175-WLM-555-001-ENG.RM., CAGE: 33525, NIIN: N/A CO2 System, Paint Locker (175), P/N: 175-WLM-555-001-PAINT LKR, CAGE: 33525, NIIN: N/A Extinguishing System, Fire (140), P/N: L-81836-C, CAGE: 33525, NIIN: N/A Extinguishing System, Fire (210), P/N: 620-WPC 9300-1, CAGE: 33525, NIIN: N/A Extinguishing System, Fire, CO2 (225A), P/N: C-96172-AMR, CAGE: 03670, NIIN: N/A Extinguishing System, Fire, CO2 (225A), P/N: C-96172-EGR, CAGE: 03670, NIIN: N/A Extinguishing System, Fire, CO2 (225A), P/N: C-96172-ER, CAGE: 03670, NIIN: N/A Extinguishing System, Fire, CO2 (225A), P/N: C-96172-FLS, CAGE: 03670, NIIN: N/A Extinguishing System, Fire, CO2 (225B), P/N: C-97040-AMR, CAGE: 03670, NIIN: N/A Extinguishing System, Fire, CO2 (225B), P/N: C-97040-EGR, CAGE: 03670, NIIN: N/A Extinguishing System, Fire, CO2 (225B), P/N: C-97040-ER, CAGE: 03670, NIIN: N/A Extinguishing System, Fire, CO2 (225B), P/N: C-97040-FLS, CAGE: 03670, NIIN: N/A Extinguishing System, Fire, CO2 (240), P/N: C-95206-AGR, CAGE: 03670, NIIN: N/A Extinguishing System, Fire, CO2 (240), P/N: C-95206-AZP, CAGE: 03670, NIIN: N/A Extinguishing System, Fire, CO2 (240), P/N: C-95206-FLS, CAGE: 03670, NIIN: N/A Extinguishing System, Fire, CO2 (240), P/N: C-95206-MGR, CAGE: 03670, NIIN: N/A Extinguishing System, Fire, CO2 (240), P/N: C-95206-SBR, CAGE: 03670, NIIN: N/A Extinguishing System, Fire Fixed CO2 (270), P/N: L672850, CAGE: 33525, NIIN: N/A Extinguishing System, Fire, CO2 (418), P/N: 1162-CO2, CAGE: 1KUR9, NIIN: N/A Extinguishing System, Fire CO2 (420), P/N: 80201-SYS-1, CAGE: 00HS5, NIIN: N/A Extinguishing System, Fire CO2 (420), P/N: 80201-SYS-2, CAGE: 00HS5, NIIN: N/A Extinguishing System, Fire CO2 (420), P/N: 80201-SYS-3, CAGE: 00HS5, NIIN: N/A Extinguishing System, Fire CO2 (420), P/N: 80201-SYS-7, CAGE: 00HS5, NIIN: N/A

PERIODICITY EVENT:

NONE

NUMBER OF COMPONENTS:

Distribution Statement D: Distribution authorized to the DHS/CG/DoD and their contractors Administrative/Operational use, 08/31/20. Other requests shall be referred to the appropriate asset product line.

WARNING: This document contains technical data whose export is restricted by the Arms Export-Control Act (Title 22, U.S.C., Sec 2751, et. seq. or the Export Administration Act of 1979, as amended, Title 50, U.S.C. App 2401 et. seq. Violations of these export laws are subject to severe criminal penalties. Disseminate in accordance with provisions of DoD Directive 5230.25.

DESTRUCTION NOTICE: For classified documents, follow the procedures in DoD 5200.22-M, National Industrial Security Program Operating Manual, Section 5-705 or DoD 5200.1-R, Information Security Program Regulation, Chapter VI, Section 7. For unclassified, limited documents, destroy by any method that will prevent disclosure of contents or reconstruction of the document.

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TASK HRS/COMPONENT:

17.0

PERSONNEL:

1 DC

1 FN

1 MK

2 Rescue Personnel

LOCATION:

Various

SOURCE DOCUMENTS:

APL 2-930054054 (WMEC-282)

APL 6400HS50A1 (WAGB-420)

APL 6400HS50A2 (WAGB-420)

APL 6400HS50A4 (WAGB-420)

APL 64036700B9 (WLB-225A)

APL 64036701C0 (WLB-225A)

APL 64036701C1 (WLB-225A)

APL 64036701C4 (WLB-225B)

APL 64036701C5 (WLB-225B)

APL 64036701C6 (WLB-225B)

APL 64036701C7 (WLB-225A/B)

APL 64036701C9 (WLBB-240)

APL 64036701D1 (WLBB-240)

APL 64036701D2 (WLBB-240)

APL 64036701D3 (WLBB-240)

APL 64036701D5 (WLBB-240)

APL 641KUR90A3 (WMSL-418)

APL 64335250B1 (WTGB-140)

APL 64335250B2 (WMEC-210)

APL 64335250B3 (WMEC-210)

APL 64335250B4 (WLM-175)

APL 64335250B5 (WLM-175)

APL 64335250B6 (WLM-175)

APL 64335250B8 (WMEC-270)

APL 64335250B9 (WMEC-270)

APL 64625580A1 (WPB-87)

NFPA 12, Standard on Carbon Dioxide Extinguishing Systems NSTM 550, Industrial Gases-Generating, Handling, and Storage OEM Technical Publication TS 555, Firefighting

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1 INSTALLED FIXED CO2 SYSTEM CHECK/SERVICE

REFERENCES:

COMDTINST 9077.1 (series) Equipment Lockout/Tags-Plus Instruction COMDTINST M9000.6 (series) Naval Engineering Manual

MPC R-C-14467

MPC R-C-14468

MPC R-C-1600

TOOLS/TESTEQUIPMENT:

Adaptor, Recharging, P/N: 933537, CAGE: 0FA36, NIIN: 003961533 Clamp, C (6 inch), P/N: 78-106, CAGE: 636D0, NIIN: 002036431 (Or equivalent) Clamp, C (8 inch), P/N: J108GS, CAGE: 1CV05, NIIN: 008403358 (Or equivalent) Hoist, Chain, P/N: MILH904CL2TYC.5TON8FTLIFT, CAGE: 81349, NIIN: 009650098 (Or equivalent) M7 Responder SCBA Assembly, P/N: 10102292, CAGE: 55799, NIIN: 015876781 Scale, Weighing (100 lb), P/N: 1756T2, CAGE: 39428, NIIN: 012432278 (Or equivalent) Scale, Weighing, P/N: SPI-310-N, CAGE: 66280, NIIN: 011406207 (Or equivalent) Stopwatch, P/N: A-A-55811, CAGE: 58536, NIIN: 001260286 (Or equivalent) Yoke Lift, P/N: 69877, CAGE: 03670, NIIN: 013139242

EXPENDABLES:

NONE

CONSUMABLES:

O-ring, P/N: 242466, CAGE: 0KDP7, NIIN: 010911012 Seal, Antipilferage, P/N: PTS, CAGE: 62757, NIIN: 012420583 Silicone Compound, P/N: AS8660 8OZTU, CAGE: 81343, NIIN: 008807616 Tag, CO2 Inspection, P/N: NAVSEA 9555/1, CAGE: 53711, NIIN: LF1143100 Towel, Machinery Wiping (Lint-free), P/N: CJ99300, CAGE: 7J789, NIIN: 006342408

A PRELIMINARY STEPS

WARNING

VARIOUS STEPS IN THIS PROCEDURE EMPLOY ITEMS ON

THE HAZARDOUS MATERIALS LIST. BEFORE EXECUTING

THIS MPC, REFER TO THE MSDS/SDS FOR FULL SAFETY

AND HANDLING PROCEDURES.

NOTE: This MPC should be completed by Coast Guard personnel who have knowledge of this system or be contracted out. If the con-tractor performs maintenance on this system, ensure they are an au-thorized marine fire extinguishing system inspector. If contracted, ship's force personnel shall observe maintenance. Contractor will provide tools, expendables, and consumables.

NOTE: Unit is responsible for scheduling and funding contractor ser-vices.

NOTE: CO2 flooding system is disabled while this MPC is executed.

1. Ensure this MPC can be accomplished without disrupting system operations.

DESTRUCTION NOTICE - Destroy by any method that will prevent disclosure of contents or reconstruction of the document. Page 3 of 31 https://cg.portal.uscg.mil/sites/externaldata/Directives/CI_9077_1D.pdf https://cg.portal.uscg.mil/sites/externaldata/Directives/CIM_9000_6G.pdf http://osc-s-lim-ap106.osc.uscg.mil:8888/webcenter/content/conn/WCC1/path/i/Surface/MPC/DC_R-C-14467.pdf http://osc-s-lim-ap106.osc.uscg.mil:8888/webcenter/content/conn/WCC1/path/i/Surface/MPC/DC_R-C-14468.pdf http://osc-s-lim-ap106.osc.uscg.mil:8888/webcenter/content/conn/WCC1/path/i/Surface/MPC/DC_R-C-1600.pdf

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2. Obtain permission from Engineer Officer (EO) and Engineer Officer of the Watch (EOW) prior to conduct-ing maintenance.

3. Notify cognizant personnel prior to removing any fire extinguishing system from normal readiness condi-tion.

4. Ensure cognizant personnel are advised on the status of backup firefighting capabilities.

5. Ensure an announcement is made via 1MC that CO2 fixed system is down for maintenance and to stay clear of that area until further notice.

6. Ensure backup firefighting capabilities are available.

a. Establish fire watches while CO2 flooding system is disabled.

WARNING

ENSURE EQUIPMENT IS PROPERLY TAGGED OUT. FAILURE

TO COMPLY MAY RESULT IN SERIOUS PERSONAL INJURY

OR DEATH.

7. Complete Equipment Lockout/Tags-Plus Process IAW COMDTINST 9077.1 (series).

a. Attach Red Danger Tags to all actuation station.

WARNING

ALL SAFETY CHECKS AND BRIEFS NEED TO BE

CONDUCTED EITHER BY SHIP’S PERSONNEL OR BY

THE CONTRACTOR PRIOR TO THE PERFORMING OF

THE DEACTIVATION/REACTIVATION PROCEDURE OF

THE HALON/CO2 FLOODING SYSTEM. FAILURE TO DO

SO COULD RESULT IN SERIOUS PERSONAL INJURY OR

DEATH.

8. Ensure ventilation system to compartment is operating.

9. Post warning signs at access to space protected by installed CO2 system to warn personnel of mainte-nance in progress.

10. Assemble rescue team.

NOTE: Additional rescue personnel shall be assigned when more than four maintenance personnel are present, providing one addi-tional rescue person per two maintenance personnel.

a. Assign minimum of two rescue personnel with at least one rescuer per two maintenance personnel.

b. Provide communications from one rescue person to manned watch station (i.e. DC central, quarter-deck, or bridge).

c. Provide SCBAs to each assigned rescue person.

d. Verify that CPR-qualified personnel are readily available.

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WARNING

AVOID EYE CONTACT, SKIN CONTACT, INHALATION, WITH

HIGH CONCENTRATIONS OF CARBON DIOXIDE (CO2).

LOSS OF VOLUNTARY BREATHING FUNCTION MAY OCCUR

WITH EXPOSURE. APPROVED PROTECTIVE EQUIPMENT

INCLUDING SCBAS ARE REQUIRED FOR ANY RESCUE

PROCEDURE CONDUCTED IN A CO2 FLOODED AREA.

FAILURE TO FOLLOW PROPER PROCEDURES COULD

RESULT IN DEATH.

11. Conduct safety briefing for all involved personnel on the following hazards involved:

a. How CO2 system could accidentally be discharged.

NOTE: Carbon dioxide (CO2) is a colorless, odorless gas, 1.5 times heavier than air, and will collect at low points.

b. Where CO2 might migrate after discharge (visualize the dispersion of CO2 as if it were water).

NOTE: Step should be taken by maintenance, rescue, or other af-fected personnel if accidental discharge occurs.

c. Complete the following actions:

(1) Evacuate space.

(2) Enter space only with SCBA on air.

d. Provide one EEBD for every person in a location susceptible to CO2 leakage.

e. Ensure personnel know how to don and operate the EEBD.

f. Define escape paths from work area to well ventilated safe haven which is not susceptible to signif-icant CO2 leakage.

g. Ensure designated access openings are secured open using C-clamp.

h. Ensure appropriate entries for open access openings are made in the Damage Control Closure log.

i. Review SCBA operating procedures.

j. Conduct walk through of escape path to safe haven.

WARNING

WARNING SIGNS SHALL BE IN PLACE AT ALL SYSTEM

LOCATIONS WHERE HALON/CO2 DISCHARGE CAN BE

INITIATED. SIGNS SHALL HAVE LETTERING AT LEAST

ONE INCH HIGH. DANGER SIGNS SHALL INCLUDE THE

WORDS DANGER – HALON/CARBON DIOXIDE GAS. WHEN

ALARM SOUNDS, VACATE IMMEDIATELY.″ SIGNS SHALL

BE POSTED AT THE ACCESSES TO THE HALON/CO2

PROTECTED SPACES, INSIDE THE PROTECTED SPACE

AND INSIDE ALL SPACES SUSCEPTIBLE TO LEAKAGE OF

HALON/CO2. FAILURE TO PLACE SIGNS COULD CAUSE

SERIOUS PERSONAL INJURY OR DEATH.

12. Ensure warning signs are posted at access(es) to work area, protected space, and areas where CO2 could migrate after discharge, (Refer to Figure 1).

13. Warn that CO2 maintenance is being performed and that access is restricted.

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14. Evacuate all personnel not involved in CO2 system maintenance from work area, protected space, and areas where significant amounts of CO2 could migrate after discharge.

NOTE: Activation of CO2 Fixed Flooding Systems may generate to-tal white-out conditions and disorientation within seconds, high noise levels that drown out alarms and voice commands, as well as suffi-cient overpressure to prevent the opening of inward swinging doors for up to one minute or more.

15. Ensure inward swinging doors in escape route are open by positive means, such as a C-clamp, rigidly attached to door or door frame.

16. Ensure escape paths are free of obstructions.

17. Ensure backup firefighting capabilities are available to the satisfaction of cognizant personnel.

WARNING

AVOID EYE CONTACT, SKIN CONTACT, INHALATION, WITH

HIGH CONCENTRATIONS OF CARBON DIOXIDE (CO2).

LOSS OF VOLUNTARY BREATHING FUNCTION MAY OCCUR

WITH EXPOSURE. EVACUATE THE SHELTER IMMEDIATELY

AFTER DISCHARGING CO2 INTO THE SHELTER SPACE.

ENSURE THAT THE SHELTER HAS BEEN VENTILATED

PRIOR TO REENTRY. FAILURE TO FOLLOW PROPER

PROCEDURES COULD RESULT IN PERSONAL INJURY OR

DEATH.

WARNING

INHALATION OF HIGH CO2 CONCENTRATIONS MAY

CAUSE: INABILITY TO HOLD BREATH; SHORTNESS OF

BREATH AND INVOLUNTARY RAPID RESPIRATIONS;

HEADACHE, RESTLESSNESS, VISUAL COLOR

DISORIENTATION, VERTIGO, SWEATING, NUMBNESS,

LOSS OF LIMB CONTROL, MENTAL CONFUSION; LOSS OF

CONSCIOUSNESS IN AS LITTLE AS 16 SECONDS; CARDIAC

ARREST WITHIN SECONDS OF UNCONSCIOUSNESS;

PERMANENT BRAIN DAMAGE IN 3 TO 5 MINUTES; DEATH,

UNLESS EFFECTIVE CPR IS INITIATED WITHIN FIRST

MINUTES OF CARDIAC ARREST.

18. Ensure all rescue personnel are in position such that conditions in area of CO2 system maintenance can be monitored, but shall avoid the likely path of heavy CO2 migration in the event of CO2 discharge.

19. Conduct communications check with continually manned watch station (i.e. DC Central, bridge, or quar-terdeck).

WARNING

ENSURE PERSONNEL ARE WEARING ALL THE PROPER

PERSONAL PROTECTIVE EQUIPMENT IAW COAST GUARD

AND UNIT INSTRUCTIONS. FAILURE TO COMPLY MAY

RESULT IN SERIOUS PERSONAL INJURY.

20. Don the following Personal Protective Equipment (PPE):

a. M7 Responder SCBA assembly.

(1) Check each personnel to ensure proper donning of SCBA.

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21. Ensure all rescue and maintenance personnel opened SCBA CYLINDER valves.

22. Ensure all rescue personnel are on standby.

23. Ensure rescue personnel maintain a count of maintenance personnel working on CO2 system.

B DISARM INSTALLED CO2 SYSTEM

1. Disarm ANSUL CO2 system if applicable.

a. Proceed to Step 1 B 2. for KIDDE system.

WARNING

DO NOT ATTEMPT TO MOVE CO2 CYLINDERS TO

DETERMINE WHETHER CYLINDER MOUNTING RACK

AND MOUNTING BOLTS ARE TIGHT. MOVING CYLINDERS

WITH CONTROL HEADS INSTALLED MAY CAUSE CO2

ACTUATION.

b. Ensure CO2 cylinder bracket hardware are tight, (Refer to Figure 2).

NOTE: There is no torque value required, do not over tighten.

(1) Tighten hardware, (If required).

c. Ensure cylinders are secure prior to removing discharge hoses.

WARNING

DO NOT PERMIT CAGE TO MAKE CONTACT WITH

ACTUATION CABLE, CABLE CONDUIT, CYLINDER VALVE,

OR CONTROL HEAD. CONTACT BETWEEN CAGE AND

ACTUATING MECHANISM MAY TENSION ACTUATION

CABLE, CAUSING CO2 ACTUATION.

NOTE: Pilot cylinders are the primary cylinders in a CO2 Fixed Flood-ing System. They are fitted with either a control head or a lever-oper-ated discharge head which is manually actuated by a local or remote pull handle. Pressure from pilot cylinders initiates visual and audio CO2 release alarms, ventilation shutdown, CO2 release time delay, and actuation of discharge heads on any secondary cylinders. All CO2 flooding systems have either one or two pilot cylinders.

NOTE: Lever-operated discharge heads have an exposed mecha-nism to release CO2 from the pilot cylinder(s) of non-KIDDE brand systems (i.e. Ansul, C-O-TWO or Fyr-Fyter). They are similar to KIDDE control heads because the actuating levers and cables are exposed, they are highly susceptible to accidental actuation andmust be fully enclosed by a protective cage.

d. Remove cage protecting CO2 cylinder heads.

e. Remove discharge hose from the CYLINDER valve discharge hose connection, (Refer to Figure 3).

f. Insert the safety pin into lever actuator, (Refer to Figure 4).

g. Remove both lever actuators from CYLINDER valves simultaneously using extreme caution to pre-vent tension in pull cable.

h. Install the valve shipping cap, (Refer to Figure 3).

i. Install the cylinder shipping cap.

j. Proceed to Step 1 C.

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2. Disarm KIDDE CO2 system.

a. Verify manufacturer system applicability.

WARNING

DO NOT ATTEMPT TO MOVE CO2 CYLINDERS TO

DETERMINE WHETHER CYLINDER MOUNTING RACK

AND MOUNTING BOLTS ARE TIGHT. MOVING CYLINDERS

WITH CONTROL HEADS INSTALLED MAY CAUSE CO2

ACTUATION.

b. Ensure CO2 cylinder bracket hardware are tight, (Refer to Figure 5).

NOTE: There is no torque value required, do not over tighten.

(1) Tighten hardware, (If required).

c. Ensure cylinders are secure prior to removing cylinder heads.

NOTE: Pilot cylinders are the primary cylinders in a CO2 Fixed Flood-ing System. They are fitted with either a control head or a lever-oper-ated discharge head which is manually actuated by a local or remote pull handle. Pressure from pilot cylinders initiates visual and audio CO2 release alarms, ventilation shutdown, CO2 release time delay, and actuation of discharge heads on any secondary cylinders. All CO2 flooding systems have either one or two pilot cylinders.

NOTE: Control heads are the KIDDE brand rectangular heads which contain themanual releasemechanism on the pilot cylinder(s). When actuated, the control head opens the pilot CYLINDER valve and CO2 is released.

NOTE: KIDDE control heads are highly susceptible to accidental ac-tuation and must be fully enclosed by a protective cage because the actuating pull and cable are exposed.

NOTE: Discharge heads are pneumatically operated by pressure from the primary cylinder(s) allowing the release of CO2 from all secondary cylinders. Most 50 lb and 100 lb CO2 systems do not have pneumatic discharge heads.

d. Remove CO2 cylinder discharge heads before removing primary cylinder control heads, (Refer to Figure 5).

(1) Loosen discharge head coupling nuts, (Refer to Figure 6 or Figure 7).

(2) Remove discharge heads from CYLINDER valves.

NOTE: Take care not to over bend, kink, or otherwise damage flexible hoses.

(3) Swing discharge heads away from cylinders.

(4) Ensure discharge head o-rings remain in place.

e. Remove both control heads from cylinders simultaneously using extreme caution to prevent tension in pull cable.

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NOTE: Once all discharge heads and control heads have been re-moved and all CYLINDER valve caps are installed, the CO2 system is disarmed.

f. Install protective caps/thread protectors on the following, (Refer to Figure 8):

(1) CYLINDER valve control heads, (Refer to Figure 9).

(2) Discharge head threaded connections.

g. Inspect the following discharge head:

(1) Inspect cable nipple between control heads on KIDDE systems with dual control heads, (Refer to

Figure 10).

NOTE: Cable nipple should be flared on one end and threaded re-tainer nut on opposite end.

(2) Inspect discharge head(s) for the following:

(a) Dirt.

(b) Corrosion.

1) Wipe away any dirt or corrosion using machinery wiping towel, P/N: CJ99300.

NOTE: SCBAs need not be worn and rescue team is not required while CO2 system is disabled.

NOTE: KIDDE discharge heads have two internal o-rings.

h. Inspect discharge head o-rings for damage.

(1) Replace o-rings, P/N: 242466, (If required).

WARNING

AVOID EYE CONTACT AND INGESTION WITH SILICONE

COMPOUND. FAILURE TO COMPLY MAY RESULT IN

PERSONAL INJURY.

i. Apply a light coat of silicone compound, P/N: AS8660 8OZTU, to control head o-rings.

NOTE: Discharge heads having two grooves machined in the cor-ners of the union nut cannot be pneumatically actuated and are only authorized for use in CO2 hose reel systems.

j. Ensure that discharge head union nuts on KIDDE systems are of the plain type and not of the grooved-type.

k. Proceed to Step 1 C.

C WEIGH FIXED CO2 CYLINDER(S)

WARNING

DO NOT ALLOW EXTINGUISHER/CYLINDER TO STAND

FREELY ON ITS END. IT MUST BE HELD OR LAY

HORIZONTALLY ON THE DECK. FAILURE TO COMPLY MAY

CAUSE MISSILE HAZARD AND MAY RESULT IN SERIOUS

PERSONAL INJURY OR DEATH.

1. Remove cylinder supporting/hold-down bracket(s) from one cylinder, (Refer to Figure 2).

2. Inspect cylinder for the following:

a. Bulges.

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b. Cracks.

c. Dents.

d. Corrosion.

3. Ensure platform scale is properly positioned.

CAUTION

FULLY CHARGED CO2 CYLINDERS CANWEIGH AS MUCH AS

225 LB. IMPROPER WEIGHT HANDLING TECHNIQUES CAN

CAUSE PERSONNEL INJURY. USE SUFFICIENT PERSONNEL,

LIFTING TECHNIQUES, AND/OR MECHANICAL AIDS TO PER-

MIT SAFE HANDLING.

4. Lift individual cylinders one at a time from rack using the following, (If required):

a. Yoke lift.

b. Chain hoist.

5. Place on scale, (Refer to Figure 11 or Figure 12).

NOTE: Empty weight of cylinder is stamped on CYLINDER valve or dome.

6. Weigh cylinder(s).

7. Subtract empty weight plus weight of protective CYLINDER valve cap from total weight to obtain net weight of contents.

a. Replace cylinder with properly charged and currently hydro-tested cylinder if net weight varies by more than 5% of rated capacity, (Comply with MPC R-C-14468).

8. Check cylinder for last hydrostatic test date.

a. Test cylinder if latest hydrostatic test date stamped on cylinder shoulder exceeds 12 years, (Comply with MPC R-C-14467).

NOTE: CO2 extinguisher inspection tags may be purchased through website:

https://navalforms.documentservices.dla.mil/web/public/home

9. Ensure weight and date on cylinder is recorded on CO2 inspection tag, P/N: NAVSEA 9555/1.

NOTE: As per COMDTINST M9000.6 (series) Chapter 550, if CO2 cylinder is removed for recharge ormore than five years have elapsed since the previous hydrostatic test, the cylinder must be hydrostati-cally tested before returning to service.

10. Ensure cylinder is hydrostatically tested before returning to service, (If required).

11. Check hose assembly for hydrostatic test date.

a. Ensure hose assembly is hydrostatically tested at an approved facility to 17,237 kPa (2,500 psi), (Comply with MPC R-C-1600), (If required).

b. Ensure hose assemblies are marked with the date of the test.

12. Inspect high pressure flexible discharge hose assembly for broken reinforcement wires.

a. Check hose for broken reinforcement wires, (If required).

b. Notify EO/EPO of the following, (If required):

(1) Hose has 10 or more broken adjacent wires.

DESTRUCTION NOTICE - Destroy by any method that will prevent disclosure of contents or reconstruction of the document. Page 10 of 31 http://osc-s-lim-ap106.osc.uscg.mil:8888/webcenter/content/conn/WCC1/path/i/Surface/MPC/DC_R-C-14468.pdf http://osc-s-lim-ap106.osc.uscg.mil:8888/webcenter/content/conn/WCC1/path/i/Surface/MPC/DC_R-C-14467.pdf https://cg.portal.uscg.mil/sites/externaldata/Directives/CIM_9000_6G.pdf http://osc-s-lim-ap106.osc.uscg.mil:8888/webcenter/content/conn/WCC1/path/i/Surface/MPC/DC_R-C-1600.pdf

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(2) 20 or more broken wires randomly spaced over piece of hose.

13. Check hose for the following:

a. Deterioration.

b. Corrosion.

c. Kinking.

d. Cracks.

e. Damage.

14. Ensure replacement hose assemblies are approved for CO2 flooding system service and pressure.

15. Inspect for damage to threads on the following:

a. CYLINDER valves.

b. Discharge heads.

c. Control heads.

16. Inspect the following for corrosion, (If required):

a. CO2 cylinder mounting rack.

b. Foundation.

c. Hold-down brackets.

d. Fasteners.

17. Inspect the following for missing hardware, (If required):

a. CO2 cylinder mounting rack.

b. Foundation.

c. Hold-down brackets.

d. Fasteners.

e. Ensure proper fitment of mounting rack, (If required).

f. Hold-down brackets.

(1) Replace improper hold-down brackets, (If required).

18. Replace fasteners if the following conditions are observed:

a. Damaged.

b. Corroded.

c. Improperly sized.

CAUTION

DO NOT REATTACH DISCHARGE OR CONTROL HEAD AT

THIS TIME. CYLINDER SHOULD REMAIN CAPPED.

NOTE: Bracket(s) must tightly restrain cylinder and prevent any movement when pushed or twisted by hand.

19. Ensure cylinder is repositioned in rack.

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20. Install cylinder hold-down bracket(s).

NOTE: There is no torque value required, do not over tighten.

a. Tighten hold-down bracket hardware.

D TEST TIME DELAY AND PULL CABLE(S)

1. Ensure all discharge heads are removed from all CO2 cylinders.

2. Ensure protective shipping caps remain in place.

3. Remove one discharge head or control head from its discharge hose, (Refer to Figure 5).

4. Ensure that selected fitting is upstream of the time delay device.

5. Obtain a 15 lb CO2 cylinder from storage.

6. Connect a 15 lb CO2 cylinder to disconnected end of discharge bend or hose using adaptor, (Refer to Figure 13).

WARNING

AVOID EYE CONTACT, SKIN CONTACT, AND INHALATION

WITH GAS. USE IN A WELL VENTILATED AREA. ENSURE

CYLINDER IS SECURE. FAILURE TO COMPLY MAY RESULT

IN SERIOUS PERSONAL INJURY.

NOTE: Delay time should be stamped or printed on delay device nameplate.

NOTE: NOTE: Simultaneously start stopwatch and discharge CO2 into the system by holding the CYLINDER valve fully open.

a. Open DISCHARGE valve on 15 lb CO2 cylinder.

b. Start stopwatch.

c. Stop stopwatch when discharge head plungers extend.

d. Check for the following:

(1) CO2 release alarm should sound.

(2) CO2 release lamp should energize.

(3) PRESSURE switch should stop vent fan(s).

7. Shut DISCHARGE valve on 15 lb CO2 cylinder.

NOTE: Some systems are equipped with a MANUAL STOP valve located downstream of the time delay device. On such systems, CO2 should not be observed at the outlet nozzles.

8. Observe secondary STOP valve downstream of the time delay device for hissing or visual signs of leakage if installed.

a. Open secondary STOP valve locally to release test CO2 if installed.

b. Close fully the secondary STOP valve once all line pressure is bled.

9. Disconnect slowly test cylinder from discharge bend or hose.

10. Reset CO2 system.

a. Reset PRESSURE switches.

b. Start vent fan(s).

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c. Reset control head STOP valve if applicable.

NOTE: Likely causes are a line restriction, an undercharged 15 lb CO2 extinguisher, a defective time delay device, or excessive leak-age from fittings or disconnected discharge heads.

11. Evaluate cause if measured time delay exceeds more than +20% or -0% of specified time IAW NFPA 12.

a. Retest with fully charged 15 lb extinguisher.

12. Notify EO/EPO if measured time delay is less than specification.

a. Replace time delay device.

b. Retest with fully charged 15 lb extinguisher.

13. Ensure the following are disconnected from pull cable prior to conducting pull cable device test, (If re-quired):

a. CONTROL SELECTOR valves.

b. Interconnected CO2 cylinders.

14. Ensure that each CO2 cylinder is still capped.

15. Disassemble control heads to remove pull cables and wheels, (If required).

NOTE: This measurement will be needed when the control head is reattached.

16. Measure extension of plunger past control head body with plunger fully retracted for later use.

17. Ensure control head plunger is reset.

18. Disconnect pull cable from discharge head lever attachment, (If required).

19. Trace pull cable conduit from cylinder manifold to pull box(es).

20. Ensure that conduit is secured to prevent movement.

WARNING

ENSURE THE CORRECT PULL BOX IS POSITIVELY

IDENTIFIED AND SERVES ONLY THE DISABLED SYSTEM.

ACTIVATION OF THE WRONG PULL BOX COULD RESULT IN

SERIOUS PERSONAL INJURY OR DEATH.

21. Test pull cable on each positively identified pull box serving the disabled system using procedure most suitable for system.

NOTE: Some systems include a remotely-operated secondary STOP valve, located downstream of the CO2 discharge manifold and any time-delay device, as a secondary safeguard against accidental re-lease into a manned space. The remote pull box for this CO2 RE- LEASE valve is normally located adjacent to the CYLINDER RE- LEASE valve. If installed, include test of positively identified pull ca-ble(s) serving this secondary STOP valve.

a. Test pull cable with 50 lb weight.

(1) Establish communications with person at spring scale if applicable.

(2) Align spring scale assembly and fasten opposite end to ship's structure.

(3) Attach 50 lb weight to disconnected end of pull cable.

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(4) Remove warning tag from remote control pull box.

(5) Remove cover and glass from remote control pull box.

(6) Pull handle to test strength of cable.

(7) Observe spring scale until 50 lb pull is indicated.

(8) Repeat several times to exercise cable pulleys.

(9) Remove 50 lb weight from pull cable end.

(10) Remove scale from pull box and ship's structure.

22. Inspect ends of cable for the following, (If required):

a. Corrosion.

b. Broken strands.

(1) Notify EO/EPO if cable is defective.

23. Check for correct positioning of a bright red or white mark near activation end of cable to show when cable is pulled far enough to operate mechanism.

24. Operate remotely each positively identified pull box SERVING valve.

25. Close secondary STOP valve after each operation locally.

26. Reinstall glass and cover on remote control pull box(es).

27. Replace warning tag(s) on pull box cover(s).

28. Verify proper adjustment of the following, (If required):

a. Control heads.

b. Pull cable.

c. Reassemble the following in control heads, (If required):

(1) Pull cable.

(2) Wheel.

CAUTION

DO NOT INSTALL CONTROL HEAD COVER AT THIS TIME.

NOTE: With pull cable in normal position and plunger reset, wheel should be within 1/4 inch of pinned end of control lever.

d. Inspect the following for proper position:

(1) Pull cable.

(2) Wheels.

(3) Control levers.

e. Ensure control head wheels are properly spaced on pull cable, (If required).

(1) Adjust pull cable length at the following, (If required):

(a) Control head wheel.

(b) Multiple pull mechanism.

f. Reassemble control heads with the following:

(1) Pull cable.

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(2) Wheel.

(3) Control head cover.

(a) Do not reattach to CO2 cylinders.

g. Verify proper adjustment if non-KIDDE systems (e.g. C-O-Two, Fyr-Fyter, Norris, or Ansul systems) of the following:

(1) Discharge head.

(2) Lever attachment.

(3) Pull cable.

h. Verify proper adjustment of discharge head, lever attachment, and pull cable.

(1) Remove "acorn" protective covers from discharge heads.

(2) Test operate all discharge heads for freedom of movement.

(3) Reinstall "acorn" protective covers on discharge heads.

(4) Operate discharge head lever attachments to “SET” position.

NOTE: On some systems, it is possible for the actuation levers to be installed in reversed position so that the plunger is not fully depressed when the lever is pulled, rendering the system inoperable.

29. Ensure that actuation levers are installed correctly, (Refer to Figure 14).

a. Reassemble pull cable to discharge head lever attachment.

(1) Do not reattach discharge heads to CO2 cylinders.

30. Inspect the following for proper position, (If required):

a. Pull cable.

b. Control levers.

(1) Adjust pull cable if necessary.

31. Ensure pull cable and moving parts operate freely for manual systems.

E REARM CO2 SYSTEM

NOTE: If CO2 cylinders are outside protected space, evacuate pro-tected space.

1. Ensure all personnel not involved in CO2 system maintenance are outside protected space.

NOTE: SCBA masks must be worn by all rescue and maintenance personnel while enabling CO2 system.

2. Notify cognizant personnel prior to start of enabling procedure.

3. Ensure that all rescue personnel are in position.

4. Conduct communications check with continually manned watch station (i.e. bridge or quarterdeck).

5. Remove protective CYLINDER valve caps.

6. Remove protective caps from the following:

a. Control head.

b. Discharge head connections.

7. Ensure cylinders are securely clamped in place before reinstalling control heads and discharge heads.

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8. Install the following before installing CO2 cylinder discharge heads, (Refer to Figure 2):

a. Lever operated discharge heads, (If required).

b. KIDDE control heads, (If required).

NOTE: Installing control or discharge head with extended plunger will initiate CO2 discharge.

9. Ensure the following are retracted before installing heads on CO2 cylinders:

a. Control head plungers, (If required).

b. Discharge head plungers, (If required).

10. Apply a light coat of silicone compound to control head o-rings.

11. Remove excess silicone compound with wiping rag.

12. Ensure mating surfaces are clean.

13. Ensure o-rings are properly positioned.

14. Ensure control head plunger is reset.

a. Verify plunger extends no further than measurement recorded in Step 1 D 16.

NOTE: Use caution to prevent tension in pull cable.

NOTE: For systems with two control heads, ensure control heads are properly aligned and installed simultaneously.

15. Install control head(s), (Refer to Figure 15).

16. Apply a light coat of silicone compound to lever-operated discharge head o-rings.

17. Remove excess silicone compound.

18. Ensure mating surfaces are clean.

19. Ensure o-rings are properly positioned.

20. Ensure lever attachments are in “SET” position.

21. Ensure lever operated discharge head plungers are fully retracted.

NOTE: For systems with two lever operated discharge heads, install heads simultaneously.

22. Install lever operated discharge heads, (Refer to Figure 16).

a. Use extreme caution to prevent movement of lever arms or tension to pull cable.

23. Apply a light coat of silicone compound to remaining discharge head o-rings.

24. Remove excess silicone compound.

25. Ensure mating surfaces are clean.

26. Verify o-rings are properly positioned.

27. Ensure discharge head plungers are fully retracted.

28. Install discharge heads.

NOTE: There is no torque value required, do not over tighten.

29. Tighten discharge head union nuts.

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WARNING

DO NOT PERMIT CAGE TO MAKE CONTACT WITH

ACTUATION CABLE, CABLE CONDUIT, CYLINDER VALVE,

OR CONTROL HEAD. CONTACT BETWEEN CAGE AND

ACTUATING MECHANISM MAY TENSION ACTUATION

CABLE, CAUSING CO2 ACTUATION.

NOTE: Carefully replace cage protecting CO2 cylinder heads.

30. Ensure cage is tightly secured.

NOTE: Once all discharge heads and control heads are installed and protective cage is securely in place, CO2 system is enabled.

NOTE: Provided that no further system components are handled, SCBAs need not be worn and rescue team is no longer required.

31. Remove warning signs.

32. Remove door/hatch C-clamps.

33. Ensure all antipilferable seals, P/N: PTS, are in place.

34. Remove SCBAs.

a. Secure SCBA BOTTLE valves.

b. Refill SCBA bottles prior to stowage, (If required).

F FINAL STEPS

1. Notify EO, EPO, or Supervisor of discrepancies, repairs, or further action upon completion of maintenance.

2. Reconnect necessary Operating Components and Remove Lockout/Tags-plus Material and Hardware IAW COMDTINST 9077.1 (series).

3. Restore equipment to the normal status.

4. Ensure HAZMAT created or used during the MPC is properly stored, segregated, or disposed of IAW all applicable local, state, and federal regulations prior to completion of this procedure.

5. Make announcement over 1MC that CO2 system is back in service.

6. Record any maintenance actions.

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WARNING SIGN

Figure 1

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TYPICAL LEVER ACTUATED CO2 FLOODING SYSTEM

Figure 2

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TYPICAL ANSUL CYLINDER VALVE ASSEMBLY

Figure 3

TYPICAL LEVER TYPE ACTUATOR

Figure 4

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TYPICAL CABLE OPERATED CONTROL HEAD CO2 FLOODING SYSTEM

Figure 5

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CABLE OPERATED CONTROL HEAD

Figure 6

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DISCHARGE HEAD

Figure 7

TYPICAL KIDDE CYLINDER VALVE ASSEMBLY

Figure 8

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WPB87 PRESSURE OPERATED INSTALLED CO2 SYSTEM

Figure 9

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CO2 SYSTEM COMPONENTS

Figure 10

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MECHANICAL BENCH SCALE

Figure 11

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DIGITAL BENCH SCALE

Figure 12

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CO2 SYSTEM OP TEST SETUP

Figure 13

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WMSL418 PNEUMATIC ACTUATION CO2 FLOODING SYSTEM

Figure 14

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CONTROL HEADS

Figure 15

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DISCHARGE HEADS

Figure 16

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