TM 3-4240-334-20&P

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TM 3-4240-334-20&P C1 C HANGE No. 1 HEADQUARTERS DEPARTMENT OF THE ARMY Washington, DC 15 June 1992 UNIT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST FOR MASK, CHEMICAL-BIOLOGICAL: AIRCRAFT, M43A1 1. The purpose of this change is to add the authentication page to the manual. 2. New material is indicated by a vertical bar in the margin of the page. 3. Remove old pages and insert new pages as indicated below. Remove Page None Insert Page Authentication Page (in front of back cover) 4. File this sheet after the title page for reference purposes. MILTON H. HAMILTON Administrative Assistant to the Secretary of the Army 01567 GORDON R. SULLIVAN General, United States Army Chief of Staff To be distributed in accordance with DA Form 12-28-E, Requirements for TM 3-4240-334-20&P. (Block 0694), Uint Maintenance,
TM 3-4240-334-20&P WARNING Wear a protective mask and clothing in accordance with local SOP when replacing canisters exposed to toxic agents. If metal banding straps are used to secure packaging, exercise extreme care when removing them. The edges of metal binding straps are sharp, and they can injure eyes or cut skin. Canisters may be changed only in a nontoxic atmosphere. Inspect canister and canister disconnect threads for dirt or other material that could prevent an airtight seal. When decontaminating a mask that has been exposed to toxic agents, wear a protective mask and clothing in accordance with SOP. As a safety precaution, pilots needing prescription lenses shall go for a checkout ride in the helicopter when they receive their new masks or a prescription is changed. This is to assure that their vision is adequate to fly. If the green Light Emitting Diode (LED) on the blower lights and remains lit for more than 5 minutes, change the battery. Battery output voltage is too low. Lithium-sulfur dioxide (Li-SO2) batteries which are used in this equipment contain pressurized sulfur dioxide (SO2) gas. The gas is toxic, and the battery MUST NOT be abused in any way which may cause the battery to rupture. A hissing sound from the battery or the smell of vinegar or rotten eggs indicates a leaking battery. If a leaking battery is detected, move battery to well-ventilated storage area and contact Defense Reutilization and Marketing Office (DRMO) for disposal. FIRST AID For first aid information, refer to FM 21-11. HEALTH/ENVIRONMENTAL HAZARD Fitter canisters use ASC Whetlerite Carbon which contains Chromium VI. Chromium VI is a known carcinogen if inhaled or swallowed. Damaged or unusable canisters are classified as hazardous waste: DO NOT throw away damaged or unusable canisters as ordinary trash. DO turn in damaged or unusuable canisters to your hazardous waste management office or Defense Reutilization and Marketing Office (DRMO). Canisters are completely safe to handle and use if they are not damaged in such away that carbon leaks from them. In unlikely event that carbon should leak, use protection such as a dust respirator to cover nose and mouth and put carbon in container such as self-sealing plastic bag; turn into hazardous waste management office or DRMO. Disposal of hazardous waste is restricted by the Resource Conservation and Recovery Act as amended (42 U.S.C.A. sec 6901 et seq). Violation of these laws is subject to severe criminal penalties. LITHIUM-SULFUR DIOXIDE BATTERIES. according to TB 43-0130 and local SOP. Do not attempt to decontaminate batteries. Dispose of batteries a (b blank)
Page 1: TM 3-4240-334-20&P UNIT MAINTENANCE
Page 5 and 6: TM 3-4240-334-20&P TABLE OF CONTENT
Page 7 and 8: TM 3-4240-334-20&P M43A1 MASK 1-0
Page 9 and 10: TM 3-4240-334-20&P 1.7. CORROSION P
Page 11 and 12: TM 3-4240-334-20&P CHAPTER 2 MAINTE
Page 13 and 14: TM 3-4240-334-20&P NOTE IPD staples
Page 15 and 16: TM 3-4240-334-20&P CHECKING UNPACKE
Page 17 and 18: TM 3-4240-334-20&P Section III. EQU
Page 19 and 20: TM 3-4240-334-20&P (d) Check that f
Page 21 and 22: TM 3-4240-334-20&P (l) Remove test
Page 23 and 24: TM 3-4240-334-20&P 2-8. MASK ASSEMB
Page 25 and 26: TM 3-4240-334-20&P Section IV. PREV
Page 27 and 28: TM 3-4240-334-20&P Item No. Interva
Page 37 and 38: TM 3-4240-334-20&P Item No. lnterva
Page 41 and 42: TM 3-4240-334-20&P Interval Item to
Page 47 and 48: TM 3-4240-334-20&P para 2-8 TM-3-42
Page 49 and 50: TM 3-4240-334-20&P Table 2-3. Troub
Page 51 and 52: TM 3-4240-334-20&P para 2-13 2-41
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TM 3-4240-334-20&P 2-43
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TM 3-4240-334-20&P Table 2-6. Troub
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TM 3-4240-334-20&P Section VI. MAIN
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TM 3-4240-334-20&P NOTE Buffed area
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TM 3-4240-334-20&P c. Internal Drin
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TM 3-4240-334-20&P e. Voicemitter R
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TM 3-4240-334-20&P g. Linear Microp
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TM 3-4240-334-20&P h. Dynamic Micro
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TM 3-4240-334-20&P l. SETSCREW ADJU
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TM 3-4240-334-20&P k. Flat Washer R
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TM 3-4240-334-20&P 2-14. BLOWER ASS
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TM 3-4240-334-20&P c. Webbing Strap
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TM 3-4240-334-20&P 2-15. AUXILIARY
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TM 3-4240-334-20&P c. Canister Seal
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TM 3-4240-334-20&P Section VII. PRE
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TM 3-4240-334-20&P (5) Air dry for
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TM 3-4240-334-20&P A-5. MISCELLANEO
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TM 3-4240-334-20&P B-2. MAINTENANCE
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TM 3-4240-334-20&P Section II. MAIN
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TM 3-4240-334-20&P APPENDIX C UNIT
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TM 3-4240-334-20&P AO-(Assembled by
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TM 3-4240-334-20&P e. DESCRIPTION A
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TM 3-4240-334-20&P C-6. HOW TO LOCA
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SECTION II TM3-4240-334-20&P (1) (2
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SECTION II TM3-4240-334-20&P (1) (2
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SECTION II TM3-4240-334-20&P (1) (2
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SECTION II TM3-4240-334-20&P (1) (2
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SECTION II TM3-4240-334-20&P (1) (2
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SECTION II TM3-4240-334-20&P (1) (2
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SECTION II TM3-4240-334-20&P (1) (2
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SECTION II TM3-4240-334-20&P (1) (2
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SECTION II TM3-4240-334-20&P (1) (2
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SECTION II TM3-4240-334-20&P (1) (2
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SECTION II TM3-4240-334-20&P (1) (2
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SECTION II TM3-4240-334-20&P (1) (2
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SECTION IV TM3-4240-334-20&P CROSS-
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SECTION IV TM3-4240-334-20&P CROSS-
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TM 3-4240-334-20&P APPENDIX D EXPEN
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TM3-4240-334-20&P SECTION II.EXPEND
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TM 3-4240-334-20&P Subject F (CONT)
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TM 3-4240-334-20&P Subject Page Uni
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PIN: 069616-000
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