HYDRAULIC
AIRPLANE
OPERATIONS
MANUAL
2-11-05
Page
6
Code
01
REVISION 21
CONTROLS AND INDICATORS
HYDRAULIC SYSTEM PANEL
1- ENGINE PUMP SHUTOFF BUTTON (guarded)
− Closes (pressed) or opens (released) the associated engine
pump shutoff valve.
− A striped bar illuminates in the button to indicate that it is
pressed.
2- ELECTRIC HYDRAULIC PUMP CONTROL KNOB
OFF - Associated pump is turned off.
AUTO - Associated pump is kept in standby mode, ready to operate
if the engine-driven pump outlet pressure drops below 1600
psi or the associated engine N2 drops below 56.4%.
ON - Associated pump is turned on.