auxiliary hydraulic pump

auxiliary hydraulic pump

An electrical-driven emergency hydraulic pump that comes into operation when an engine-driven pump(s) fails. It also provides hydraulic fluid under pressure when the engine is not running.
References in periodicals archive ?
Operators using the new joystick controls will be able to use a yellow proportional thumb switch to control the variable-flow auxiliary hydraulic pump.
The re-inspections at American and Delta stemmed from a 2006 order for airlines to ensure that wiring for an auxiliary hydraulic pump was properly installed and secured to minimize risks for electrical shorts that could spark a fire.
This AD would require repetitive inspections of the number 1 and 2 electric motors of the auxiliary hydraulic pump for electrical resistance, continuity, mechanical rotation and associated wiring resistance/voltage; and corrective actions if necessary.
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