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What type of Hydraulic system does the T-6 have?
Closed-loop system.
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How is the hydrqulic system on the T-6 is pressurized?
By an engine driven pump.
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Where is the engine driven pump located?
In the engine accessory compartment.
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The engine driven pump will maintain the pressure for both the ____ and ____ system ____psi +/- ___
normal, emergency, 3000, 120
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The hydraulic system has a pressure relief valve that opens when pressure is between ____ - ____ psi to prevent _______
3250-3500psi, damage
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What components are powered by the normal HYD system?
- Flaps
- Landing gear
- Manin gear doors
- Speed brake
- Nosewheel steering
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When the pressure drops below ____ psi the _____ annunciator on the CWS illuminate.
1800, HYDR FL LO
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The emergency system can only be available if?
The normal system pressurized the emergency accumulator.
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What activates the emergency HYD system?
The emergency landing gear extension handle in the front cockpit.
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what prevents fluid in the emergency HYD system from flowing back into the normal system?
a check valve
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Both main landing gear doors must extended past ___ to allow either main landing gear to extend.
70%
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During the exterior check make sure to inspec the _____ and ____ to the interior door.
bell crank, connecting rod
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How much fluid is stored in the HYD reservoir? and what does that amount include?
1.25 gallons, includes 0.6 gallon power package reservoir
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When the HYDR FL LO annunciator is illuminated what systems should be considered inop? (assuming no pressure)
- Normal landing gear extension
- Normal flap extension
- Speed brake
- Nose wheel stearing
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What should be considered when EHYD PX LO annunciator is illuminated?
the emergency landing gear and flap extension is inop
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The EHYD PX LO will illuminate when the pressure in the emergency accumulator drops below ____psi?
2400
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The red gear light will illuminate when.
- Doors not closed
- PCL idle gear up
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You will hear a tone when.
- The gear is up, with 87% N1, at 120 KIAS
- With the gear up and flaps LDG
- With gear handle up, WOW
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What may be indicated by a loss of HYD pressure?
a fluid leak in the emergency HYD system.
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IF a HYD leak is of a small enough flow rate (less than .25gpm) that it does not activate the HYD fuse what could possibly happen?
All fluid could leak out of both systems and a gear up landing would be required.
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