If the engine of a fire apparatus does not start within 30 seconds, how long should the starter motor cool before attempting to start it again?

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In the context of starting a fire apparatus engine, allowing the starter motor to cool for a period of 2 minutes after an initial unsuccessful attempt is essential for preventing damage to the starter motor and electrical system. When a starter motor is engaged, it generates heat. Continuous cranking without allowing sufficient cooling time can lead to overheating, which may cause permanent damage to the motor or its components.

By waiting for 2 minutes, you give the starter motor enough time to cool down and potentially reset its internal components. This practice minimizes the risk of overheating and ensures that the apparatus is ready for another attempt to start the engine. Following this cooling period helps maintain the longevity and reliability of the starter motor in fire apparatus, supporting its crucial role in emergency situations.

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