Hydraulics Flashcards
MAIN Hydraulic system components:
AUX Hydraulic system components:
MAIN: (BALSA) Normal Brakes Aileron Boost Landing Gear Steering Air Brakes
AUX: (TAPE) T/R's Aileron Boost Parking Brake Emergency Brakes
With the switch in AUTO, when will the AUX hydraulic pump run automatically:
(GAMMA) Gear not up and locked Aux Accumulator pressure low Main system pressure low MAIN system reservoir fluid level low Aileron Failure
How do you know if a hydraulic filter is being bypassed:
When should they be checked:
By observing “POP UP” pin on filters located in tail cone
Post flight and pre flight
How is hydraulic reservoir pressurized:
Bleed air
At what pressure does the HYD PUMP annunciator light extinguish:
At what pressure does it illuminate:
1750 psi
1500 psi
At what pressure does the AUX HYD OFF annunciator extinguish:
At what press does it illuminate:
What is the illumination of this annunciator an indirect indication of:
2100 psi
1800 psi
Brake / T/R accumulator pressure is below 1800 psi
Which hydraulic filters are non by-passable:
Which are by-passable:
Component filters
Return filters
What is the AUX accumulator pre-charge pressure on a STD day:
What is the ALTN gear extension bottle pressure on a STD day:
1500 psi
3000 psi
Where does the pneumatic pressure come from to pressurize the hydraulic reservoir:
What is normal pressure:
Over-pressure relief;
At what pressure will the HYD TANK PRESS annunciator illuminate:
Mixing Chambers
30 psi
38 psi
Less then 10 psi in both hydraulic tanks
What is the NORMAL hydraulic pressure:
What is the overpressure relief:
2900 to 3300 psi
3650 psi
What is the capacity of the AUX PUMP:
2 gallons per min
