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51 Cards in this Set
- Front
- Back
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where is the independent master cylinder located?
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in the cockpit mounted to the rudder pedal supports
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what is the purpose of an independent master cylinder?
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to create a flow of fluid in the on position and to relieve thermal expansion and allow replacement
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desired characteristics of hydraulic fluid
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low viscosity, corrosion stability, lubrication
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what are the compoenents of a solenoid selector valve?
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body slide and sleeve solenoid plunder and pin balls and seat
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what are the two classifications for contamination?
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particulate and fluid
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list the parts of an aircraft affected by hydraulics
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bomb bay doors, wing slats, wings
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purpose of a reservoir?
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to hold supply of fluid for operation and provide space for thermal expansion and allow automatic bleeding of air
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pascals law
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pressure exerted on an enclosed liquid is transmitted equally and undiminished in all directions and acts with equal force on all areas
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two "other" functions of accummulators
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thermal expansion, shocks and surges
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formula for force
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area * pressure
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what are the two methods for measuring particulate contamination?
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patch test, electronic test?
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placard location and information it contains
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type of fluid, fluid capacity, cautions
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what determintes location of pump?
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power source
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what are three sources of power for pumps?
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electrical, engine, ram air turbine
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3 components of a hydraulic filter?
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bowl, head, element
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what are four types of hydraulic filters?
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micronic, 5 micron, sintered, stainless steel
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function of hydraulic motors?
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to provide rotary mechnical motion
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two mil spec for hydraulic fluid
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mil prf 83282 mil-h-46???
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list components of basic hydraulic system
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reservoir, pump
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list components of hand pump
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march!
manual bypass valve actuating unit reservoir check valve hand pump |
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what are teh two types of hydraulic pumps
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piston and gear pumps
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what mil spec of hydraulic fluid is resistant to fire?
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mil prf 83282
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what are the three tpes of particulate contaminatioN/
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inorganic organic metallic
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four methods of decontamination
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purging purifying recirculation and flushing
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two types of accumulators
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spherical/diaphram and cylindrical/piston
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then toeing action is applied to the brake what pulls the piston rod down?
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mechanical linkage
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purpose of the power boost master cyclinder
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to give a greater pressure at the brakes to aide the pilot
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what are disadvantage of hydraulics
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leakage and contamination
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3 sources of contamination
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maintenance malpractice, internal wear, poorly maintained support equipment
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what pub is aviation hydraulics manual?
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navair 01 1a 17
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which pub is used when patch testing
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mrc, navair 01 1a 17, mims
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what are the desired qualities for hydraulic fluid?
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low viscosity, corrosion stability, lubrication qualities
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which hydraulic fluid is used for preservation
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mil h 46170 type 2
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3 ways to check fluid level in reservoir
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dipstick, liquidometer, sight gage
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what info does the placard on reservoir contain
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fl capacity, type of fl, caution
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purpose of hydraulic pump
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to transmit teh flow of fluid
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purpose of hydraulic filters
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to filter the fluid of hydraulic system of foreign particles
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what is micron measured in?
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1millionth of a meter 39 millionths of an inch
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pubs pertain to hydraulic filters
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mrcs mims navair 01 1a 17
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two types of relief valves
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pressure relief valve, temp relief valve
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purpose of a relief valve
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to protect system from damage that could be caused by excessive system pressure
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where are thermal relief valves located
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in a hydraulic system where a check valve or selector valve prevents pressure from being relieved
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what are the three functions of an accumulator?
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normal, emergency, other
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what valves are seated in independent master cylinder in on position?
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compensation valve
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purpose of power brake control valve
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to release and to regulate the pressure of the main system to the brakes
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what are the components of an independent master cyclinder?
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housing, end caps and spacers, fluid ports
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what is the function of a hydraulic motor?
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convert fluid energy into rotary mechanical motion
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what are the components of a reservoir?
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baffle, fluid port, return port, air bleed port?
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shearing shaft?
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to prevent damage to the power source in the event of pump binding
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what is the function of an actuating cylinder?
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to transform hydraulic energy into mech linear motion
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types of reservoirs
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pressurized and non pressurized
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