What maintenance practice can help prevent APU overheating?

Regular cooling system checks are crucial for preventing APU overheating. The cooling system plays a vital role in managing the temperature of the APU by dissipating the heat generated during operation. If the cooling system is not checked regularly, issues such as coolant leaks, blockages, or component failures may go unnoticed, leading to inadequate cooling. This can result in the APU operating at elevated temperatures, which can cause damage to internal components and lead to premature failure. By conducting routine checks, technicians can ensure that the cooling system is functioning correctly, maintaining the optimal operating temperature and enhancing the reliability and longevity of the APU.