Information about the operation, maintenance, and safety regarding auxiliary boilers in this chapter supplements that given in Engineman 3 & 2, NAVEDTRA 10541 (current edition). Detailed information on construction, operation, and maintenance of auxiliary boilers must be obtained from the manufacturers technical manual.

OPERATION

The operation of auxiliary boilers used on diesel-driven ships is under the supervision of an ENC or EN1. You should ensure that personnel charged with the operation and maintenance of an auxiliary boiler are thoroughly familiar with the boiler and its associated equipment. Satisfactory operation of the boiler depends on proper care and maintenance. Specific attention must be paid to maintaining automatic regulating, control, and safety devices in proper operating condition. Failure of these devices may lead to a major casualty, damage to equipment, and injury to personnel; therefore, continuous, alert watchstanding should be maintained while the auxiliary boiler is in semiautomatic or manual operation. An operating auxiliary boiler should never be left unattended.

TROUBLESHOOTING

Faulty operation of auxiliary boilers is indicated by various symptoms. These symptoms may indicate one or more conditions in the boiler. Each condition must be corrected. Consult the manufacturers technical manual for detailed information on troubleshooting a particular boiler. Knowing the probable causes of a particular symptom can assist you in correcting any trouble quickly and efficiently. Some of the troubles encountered in the operation of auxiliary boilers and their causes are listed in figure 7-2.