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10 Cards in this Set
- Front
- Back
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What is the capacity of the hydraulic engine driven pump?
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5 quarts (1.25 gallons)
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The system incorporates a pressure relief valve (_____ to _____ psi) in the main and emergency systems to prevent damage from high system pressure.
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3250 to 3500 psi
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The hydraulic system service bay, located in the lower aft fuselage behind the right wing trailing edge contains:
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-A manual pressure release handle to release the pressurized fluid from the emergency accumulator back to the reservoir.
-A fluid quantity indicator which shows the level of hydraulic fluid in the power package reservoir. -A ground hydraulic power, sampling, and servicing connection |
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The hydraulic pump pressurizes the normal system and emergency accumulator to ________.
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3000+/-120
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Once pressure exceeds ______ psi, the system can power the landing gear, main gear doors, flaps, speed brake, and nose wheel steering.
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1800 psi.
If the hydraulic pressure indicator drops below 1800 psi, the hydraulic pressure display will change from white to amber. |
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An amber _________ annunciator illuminates on the caution/warning panel to indicate that the reservoir level has dropped below approx. 1 quart.
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HYDR FL LO
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An amber ________ annunciator is illuminated when the emergency accumulator pressure drops below 2400+/-150 psi, and is the only indication of the emergency accumulator's status.
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EHYD PX LO
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A hydraulic fuse is used to prevent a leak in the emergency system from depleting the main hydraulic system. At what point will the fuse close?
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The fluid flow to the emergency accumulator is restricted to a rate below .25 GPM. In the event of an emergency hydraulic system leak that exceeds .25 GPM the fuse limits fluid loss to a maximum of 20-30 cubic inches (0.5 quarts)
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A normal gear extension/retraction sequence takes approximately ___ sec.
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6 seconds
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The nose wheel is a free castoring type with 160 deg. of castor (___ deg per side).
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80 deg. Do some math...
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