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- Q511 - General Subjects I
104. Hydraulic machinery failures are commonly caused by misalignment of the system components and by __________.
Hydraulic fluid contamination is a primary cause of hydraulic machinery failures, often occurring alongside component misalignment. Contaminants cause wear, clogging, and valve sticking due to their impact on lubrication, cooling, and valve control. While friction, turbulence, and pressure surges can occur, they are typically secondary effects or symptoms, not the most common cause of failure.
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