Quantcast Section III.  SPECIAL INSTRUCTIONS.

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ARMY TM 9-2815-259-24 AIR FORCE TO 38G1-125-2 MARINE CORPS 09249A/09246A-24 2-2 2.5.  ELECTRICAL SYSTEM. The electrical system consists of external mounted batteries, starter, battery charging alternator, and related relays and switches for control of the system.  Battery power supplied to the starter during the start cycle energizes the starter which engages the ring gear of the flywheel causing the engine to turn over.  When engine start is complete, the starter is deenergized and disengages from the flywheel.  The battery charging alternator is belt driven.  It is a 45 ampere, 28 VDC alternator that when operating supplies voltage to recharge the batteries and maintain them at a full state of charge. Section II.  OPERATING INSTRUCTIONS (Refer to end item operator's manual.) Section III.  SPECIAL INSTRUCTIONS. 2.6.  NUCLEAR, BIOLOGICAL, CHEMICAL (NBC) DECONTAMINATION PROCEDURES.  The engine is capable of being operated by personnel wearing nuclear, biological, or chemical (NBC) protective clothing without special tools or support equipment.  Refer to FM 3-5, NBC Decontamination for information on decontamination procedures.  Specific procedures for the engine are the following: a. Rubber tubing and belts, coverings for electrical conduits, gaskets, and bushings will absorb and retain chemical agents.  Replacement of these items is the recommended method of decontamination. b. Lubricants, fuel, and coolant may be present on the external surfaces of the generator set or components due to leaks or normal operation.  These fluids will absorb NBC agents.  The preferred method of decontamination is removal of these fluids using conventional decontamination methods in accordance with FM 3-5. c. The primary area that will entrap contaminants on the engine, making efficient decontamination extremely difficult, include the area around the external fuel drain.  Replacement of this item, if available, is the recommended method of decontamination.  Conventional decontamination methods should be used on this area, while stressing the importance of thoroughness and the probability of some degree of continuing contact and vapor hazard. d. In an NBC contaminated environment, all access doors on the end item unit should be closed to reduce the effects of contamination. e. The use of overhead shelters or chemical protective covers is recommended as an additional means of protection against contamination in accordance with FM 3-5.  When using covers, care should be taken to provide adequate space for air flow and exhaust. f. For additional NBC information refer to FM 3-3, FM 3-4 and FM 3-5.  Other services use applicable publications for NBC.


 


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