TM-9-2540-207-14&P Sustainment Manual for A20 Heater for M113 2540-01-396-2826 Download
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TM 9-2540-207-14&P i WARNING SUMMARY Failure to follow these safety precautions could result in serious injury or death to personnel and/or property damage. Refer to FM 4-25.11 for first aid information. WARNING Carbon monoxide is a colorless, odorless gas, and if inhaled can be lethal. Never operate a heater indoors without venting the exhaust out of the test area or vehicle. The heater consumes oxygen and produces carbon monoxide gas, which is vented through the exhaust. Adequate exhaust ducting must be provided to avoid carbon monoxide leakage and poisoning of personnel. WARNING Should the heater not start within three (3) consecutive attempts, refer to the Troubleshooting guide in Section 6 of this manual. DO NOT try to start a flooded heater and DO NOT use starting aids such as ether to assist in heater Start-Up, a fire hazard may occur which could result in injury or death to personnel. WARNING DO NOT place combustible materials within three (3) feet of the heater exhaust. WARNING DO NOT smoke or allow open flame nearby while conducting maintenance work on the heater as diesel fuel and its fumes can be explosive. WARNING If the heater has been running recently, the Ignitor, the Exhaust Port, and the Heat Exchanger are hot enough to burn unprotected skin. WARNING Hearing can be PERMANENTLY DAMAGED if exposed to constant high noise levels of 85 dB or greater. Wear approved hearing protection devices when working within two (2) feet of the heater inlet. Personnel exposed to high noise levels shall participate in a hearing conservation program in accordance with DA PAM 40-501. Hearing loss occurs gradually but becomes permanent over time. WARNING After disconnecting electrical power from the heater and detaching the MS Power Connector, the Pins A and D of the heater’s male connector remain electrically live with 24VDC. This condition remains for approximately five (5) minutes while the capacitor discharges. Personnel should avoid touching the contacts of this connector as electrical shock may occur. WARNING Remove rings, bracelets, wristwatches, and neck chains before performing maintenance on the heater. Jewelry can catch on equipment and cause injury or may short across an electrical circuit and cause severe burns or electrical shock. WARNING Remove A20 heater from vehicle prior to any welding on hull as transient current could damage circuit boards.