2021.05.01 緊急燃油切斷閥應(yīng)急操作指南 Miscellaneous- Excerpts From the Airplane's Maintenance Manual.-Master

DA20-C1FlightManual

Diamond.

Description

7.10.1.FuelShut-offValve

WARNING

Thefuelshut-offvalveshouldonlybeclosedforemergenciesorfuelsystemmaintenance.

Therearetwodifferentversionsoffuelshut-offvalvesintheDA20-C1.

Version1

Thefuelshut-offvalveislocatedonthecabinsideofthefirewallandiscontrolledbyahandleontheright

sidecenterpedestal.Toactivatethefuelshutoffvalve,liftthehandlereleaselockandpullthehandleout.

Intheopenpositiontheknobisin.Intheclosedpositiontheknobisout.

Version2

Thefuelshut-offvalveisintegraltothemaintenancedrainmanifold,locatedbelowthefueltank.Itis

actuatedbythecenterconsolemountedrotarylever,viaarigidpushrod.Toactivatethevalve,rotatethe

leverclockwisefromOFFtoONorliftthelockoutknobandrotatethelevercounterclockwisefromONto

OFF.Thesafetylockoutknobpreventsaccidentalactuationofthevalve.

7.10.2.TankDrain

Todrainthetanksump,activatethespringloadeddrainbypushingthebrasstubeinwithadrain

container.Thebrasstubeprotrudesapprox.11/6in(30mm)fromthefuselagecontourandislocatedon

theleftsideofthefuselage,approximatelyatthesamestationasthefuelfillercap.

7.10.3.FuelFilterBowl

Thefuelfilterbowlisbetweenthetankandthefuelpump.Thebowlactsasatrapforsedimentandwater

thathasenteredthefuellinefromthetank.

7.10.4.FuelFilterBowlDrain

Thefilterbowldrainisnexttothefueltankdrain.Itoperatesinthesamemannerasthefueltankdrain.

7.10.5.FuelDipstick

Afueldipstick,P/N22-2550-14-00,issuppliedwithallaircrafttopermitdirectmeasurementoffuellevel

duringthepreflightcheck.OnserialnumbersC0056,C0066,C0067andC0069usefueldipstickP/N22-

2550-17-00.

NOTE

Electricfuelgaugesmaymalfunction.Checkfuelquantitywithfueldipstickbeforeeachflight.

Doc#DA202-C1

December7,1999

17

Revision8

DA20-C1FlightManual

Diamond.

Description

Tocheckthefuellevel:

1.Insertthegraduatedendofthefueldipstickintothetankthroughthefuelfilleropeninguntilthe

dipsticktouchesthebottom.

2.Withdrawthedipstickfromthefueltank.

3.Readfuelquantity.Thedipstickiscalibratedinincrementsof4ofuseablefuelcapacity.

(21.3USgallons/80.5litersforType1FuelSystemor24.0USgallons/91litersforType2FuelSystem).

NOTE

Severalreadingsshouldbetakentoconfirmaccuracy.

7.10.6.ElectricFuelPump(PrimingPump)Operation

TheDA20-C1isequippedwithaDUKESconstantflow,vanetype,twospeed,electricfuelpump.This

pumpemitsanaudiblewhinewhenitisswitchedon.

FuelPrime

Thepump'shighspeedsettingisusedforprimingtheenginepriortoenginestart.Theprimesettingis

selectedbyturningtheFUELPRIMEswitchON.AnamberannunciatorindicatesthatFUELPRIMEON

isselected.

.

FuelPump

Thepump'slowspeedsettingisrequiredformaintainingpositivefuelsupplysystempressuresatlow

throttlesettings.ThissettingisselectedbyturningtheFUELPUMPswitchON.Thissettingshouldbe

selectedforanylowthrottleoperations,includingtaxiingandanyflightoperationswhenenginespeed

mayfallbelow1000RPM(eg.stalls,spins,descents,landings,etc.).TheFUELPUMPmayalsobe

selectedONtosuppresssuspectedvapourformationinthefuelsupplysystem.Smoothengine

operationathighambienttemperatureswithheatsoakedfuelanduptoandexceedingtheserviceceiling

hasbeendemonstratedwithoutuseoftheelectricpump.

NOTE

Turningtheprimingpumponwhiletheengineisrunning,willenrichenthemixtureconsiderably.Although

theeffectislessnoticeableathighpowersettingswhenthefuelflowrateishigh,theeffectatlowand

idlethrottlesettingsisanoverrichmixture,whichmaycauseroughengineoperationorenginestoppage.

Itisthereforerecommendedthatfornormaloperations,theFUELPRIMEbeturnedOFF.

Doc#DA202-C1

October18,2002

18

Revision16

DA20-C1FlightManual

Diamond.

Description

7.10FUELSYSTEM

Thealuminumtankislocatedbehindtheseats,belowthebaggagecompartment.Thecapacityis

specifiedinSection2ofthismanual.Thetankfillerontheleftsideofthefuselagebehindthecanopyis

connectedtothetankwitharubberhose.Agroundingstudislocatedontheundersideofthefuselage

nearthetrailingedgeofthelefthandwing.Theaircraftmustbegroundedpriortoanyfuelingoperation.

Thetankventlinerunsfromthefillerneckthroughthefuselagebottomskintotheexterioroftheairplane.

Theventlineisthetranslucentplastichoseadjacenttotheleftwingroot.Theventlinemustbeclearfor

properfuelsystemoperation.Thetankhasanintegralsumpwhichmustbedrainedpriortoeachflight,

bypushinguponthebrasstubewhichprotrudesthroughtheundersideofthefuselage,forwardofthe

trailingedgeofthelefthandwing.

Twooutletswithfingerfilters,oneleftandoneright,areinstalledatthebottomofthetank.Fuelisgravity

fedfromtheseoutletstoafilterbowl(gascolator)andthentotheelectricfuelpump.Thefilterbowlmust

bedrainedpriortoeachflight,bypushingupontheblackrubbertubethatprotrudesthroughthe

undersideofthefuselage,adjacenttothefueltankdrain.Theelectricfuelpumpprimestheenginefor

enginestarting(PrimeON)andisusedforlowthrottleoperations(FuelPumpON).Whenthepumpis

OFF,fuelflowsthroughthepump'sintemalbypass.Fromtheelectricpump,fuelisdeliveredtothe

engine'smechanicalfuelpumpbythefuelsupplyline.Fuelismeteredbythefuelcontrolunitandflows

viathefueldistributionmanifoldtotheinjectornozzles.

Closingthefuelshut-offvalve,locatedeitherontheaftsideofthefirewalloratthemaintenancedrain

manifold,willcausetheenginetostopwithinafewseconds.

Aretumlinefromthemechanicalpump'sfuelvaporseparatorreturnsvaporandexcessfueltothetank.

Fuelpressureismeasuredatthefueldistributionmanifoldanddisplayedonthefuelpressureindicator,

whichiscalibratedinPSI.

SomeDA20-C1aircraftalsohaveafuelvaporseparatorinthedistributionmanifold.Theseaircrafthavea

secondvaporreturnlinefromthedistributionmanifoldtothefirewall.

Doc#DA202-C1

June24,2005

15

Revision19

DA20-C1AMM

Diamond.

FlightControls

4.Remove/InstallRudderControlCables

A.Equipment

Items

Quantity

PartNumber

CableTensionGauge.

1

Commercial.

Swagingtool

1

Commercial.

B.RemoveTheCockpitRudderControlCables(Fromthefirewalltotheyoke).

DetailSteps/WorkItems

KeyItems

(1)

Removetheseitemsforaccess:

RefertoChapters:

-Pilotsseats.

-25-10

-Baggagecompartmentfloor.

-25-10

-FuelTank.

-28-10

(2)

Removethecablebetweenthefirewalland

theyoke:

-Removethecotterpinandclevispinthat

attachesthecabletothebracketatthe

firewall.

-Removetheboltthatattachesthecable

totheyoke.

-Cuttheeyeendfromtheoldcableatthe

firewallend

-Removetheoldcable.

Doc#DA201-C1

Page205

Rev.0

27-20-00

19Dec1997

FlightControls

Diamond.

DA20-C1AMM

C.InstalltheRudderControlCables(Fromthefirewalltotheyoke).

DetailSteps/WorkItems

KeyItems

WARNING:ONLYTRAINEDANDAUTHORIZEDPERSONSSHOULDINSTALL

CABLEEYE-ENDS.IFTHEEYEENDSARENOTINSTALLED

CORRECTLY,THERUDDERCONTROLSCANFAIL.THISCAN

CAUSEDEATHORINJURYTOPERSONNEL.

Note:

Tomaketheworkeasier,swageaneyeendononeendofthecablebefore

youinstallitintheairplane.

(1)

Installaneweyeendtothecablebeforeyou

UseLocolocthimblesandovalsleevesfor

installitintheairplane.

3.2mmdiametersteelcablesto

-Inspectthecableeye-endforcorrect

specificationMS51844.

assembly.

-Ifnecessaryforyourairworthiness

authority,sendasampleforprooftest.

(2)

Pushthecontrolcablethroughtheteflon

RefertoFig:1.

tubesfromtherear.

(3)

Makesurethecableisinthecorrectposition

RefertoFig:1.

onthepulleys(fortheoutercablesonly).

(4)

Pushthecablepositionthroughthe\"S\"tube

RefertoFig:1.

ontherudderpedalassembly.

(5)

Installaneweyeendtothecableatthe

UseLocolocthimblesandovalsleevesfor

firewallend.

3.2mmdiametersteelcablesto

-Inspectthecableeyeendforcorrect

specificationMS51844.

assembly.

-Ifnecessaryforyourairworthiness

authority,sendasampleforprooftest.

(6)

Instalthecabletotheyoke:

-Installtheboltthatattachesthecableto

theyoke.

-Tightenthebolt.

Torqueto6.5Nm(4.6ft.Ib).

Page206

19Dec1997

27-20-00

Doc#DA201-C1

Rev.0

DA20-C1AMM

Diamond.

FlightControls

DetailSteps/WorkItems

KeyItems

(7)

Installthecabletothebracketatthefirewall:

Adjustthepositionoftheclevispininthe

multi-holebrackettogivethecorrect

-Installtheclevispinthatattachesthe

rudderpedalposition.Therudderpedal

cabletothefirewallbracket.

levermustbeverticalwhentherudderis

-Installthecotterpin.

neutral.

(8)

Doacheckoftherudderrangeof

RefertotheRudderControlSystemTest

movement.

ForCorrectRangeOfMovement.

(9)

Doaninspectionofallthecontrolsthatyou

haveadjusted.

-Ifnecessaryforyourairworthiness

authority,doasecondinspectionofthe

controls.

(10)

Installtheseitems:

RefertoChapters:

-Pilotsseats.

-25-10

-Baggagecompartmentfloor.

-25-10

-FuelTank.

-28-10

Doc#DA201-C1

Page207

Rev.0

27-20-00

19Dec1997

FlightControls

Diamond.

DA20-C1AMM

D.RemoveTheAftFuselageRudderControlCables(Fromtheyoketotherudder).

DetailSteps/WorkItems

KeyItems

(1)

Removetheseitemsforaccess:

RefertoChapters:

-Pilotsseats.

-25-10.

-Baggagecompartmentfloor.

-25-10.

-FuelTank.

-28-10.

-Rudder.

-55-40.

(2)

Removethecablebetweentherudderyoke

andtherudder:

-Removetheboltthatattachesthe

turnbuckletotherudderyoke.

-Removetheboltthatattachesthecable

totherudderlowermountingbracket.

-Cuttheeyeendfromtheoldcableatthe

rudderlowerbracketend.

-Removetheoldcable.

-Cuttheeyeendfromtheturnbuckle.

E.InstallTheAftFuselageRudderControlCables(Fromtheyoketotherudder).

DetailSteps/WorkItems

KeyItems

WARNING:

ONLYTRAINEDANDAUTHORIZEDPERSONSSHOULDINSTALL

CABLEEYE-ENDS.IFTHEEYEENDSARENOTINSTALLED

CORRECTLY,THERUDDERCONTROLSCANFAIL.THISCAN

CAUSEDEATHORINJURYTOPERSONNEL.

Note:

Tomaketheworkeasierswageaneyeendononeendofthecablebefore

youinstallitintheairplane.

(1)

Instalaneweyeendtothecablethrough

UseLocolocthimblesandovalsleevesfor

theturnbucklebeforeyouinstallthecablein

3.2mmdiametersteelcablesto

theairplane.

specificationMS51844.

-Doatestofthecableeyeendforcorrect

assembly.

-Ifnecessaryforyourairworthiness

authority,sendasampleforprooftest.

Page208

29Apr2004

27-20-00

Doc#DA201-C1

Rev.9

DA20-C1AMM

Diamond.

Fuel

CHAPTER28-00

FUEL-GENERAL

1.General

ThisChaptergivesyougeneraldataabouttheairframefuelsystem..SeetheContinentalEngine

manualsfordataabouttheenginefuelsystem.

2.Description

Figure1showsthefuelsystemschematicdiagram.TheDA20-C1hasthesefuelsystem

components:

-A24.5USgallonfueltank.Thefueltankislocatedinthefuselagebehindtheseats.

-Anoptional20USgallonfueltank.Thistankislocatedinplaceofthestandard24.5US

gallonfueltank.

-Afuelshut-offvalve.Thefuelshut-offvalveislocatedontheaftsideofthefirewall.The

controlleverfortheshut-offvalveisontheforwardpartofthecenterconsole.

-Aoptionalconsolemountedfuelshut-offvalve.Thisshut-offvalveislocatedbetweenthe

pilotandco-pilotseats.Theconsolemountedfuelshut-offvalveisinstalledinplaceofthe

firewallmountedshut-offvalve.

-Amaintenanceshut-offvalve.Themaintenanceshut-offvalveletsyouremovethefilter

screenfromthegascolatorortheelectricalpumpwithoutdrainingthefueltank.The

maintenanceshut-offvalveislocatedbelowthefueltank.

-Agascolator.Thegascolatorislocatedbelowthefueltank.Ithasa120micronfilterscreen.

TheoptionalAndairgascolatorhasa70micronfilterscreen

-Anelectricalfuelpump.Theelectricalfuelpumpislocatedbelowthefueltank.

-Acheckvalve.Thecheckvalveislocatedinthereturnlinebesidethefueltank.

-Afuelquantitysensor.Thefuelquantitysensorislocatedinthetopofthefueltank.

-Afuelquantitygauge.Thefuelquantitygaugeislocatedontherightinstrumentpanel.

-Afuelpressuresensor.Thefuelpressuresensorislocatedonthetopright-handsideofthe

enginemount.Alternatively,someaircraftmayhavethefuelpressuresensorlocatedbehind

theleft-handsideoftheaftenginebaffle.

-Afuelpressuregauge.Thefuelpressuregaugeisontherightsideoftheinstrumentpanel.

-Afueltankdrainvalve.Thedrainvalveislocatedbelowthefueltank.Aspringholdsit

closed.

-Twomaintenancedraintaps.Thelowpointofeachsupplyandreturnpipehasa

maintenancedraintap.

-Flexiblefuelhoses.

Doc#DA201-C1

Page1

Rev.13

28-00-00

30Apr2008

DA20-C1AMM

Diamond.

Fuel

3.Operation

Withthefuelshut-offvalvesettoOPEN,fuelflowsfromthefueltanktotheenginethroughthese

components:

-Maintenanceshut-offvalve.

-Gascolator.

-Electricalfuelpump.

-Maintenancedraintapinthesupplypipe.

-Fuelshut-offvalve.

Fuelretumsfromtheenginetothefueltankthroughthesecomponents:

-Fuelreturnpipe.

-Maintenancedraintapinthereturnpipe.

-Checkvalve.

Withthefuelshut-offvalvesettoCLOSED,fuelcannotflowtotheengine.

CAUTION:

LOCKTHEMAINTENANCESHUT-OFFVALVEOPENWITHWIRE.IF

YOUDONOTLOCKTHEVALVEOPENITMAYCLOSEINFLIGHT.

THISWOULDCAUSEENGINEFAILURE.

Youcanclosethemaintenanceshut-offvalvetodomaintenanceonthefuelsystemcomponents

belowthefueltank.

Doc#DA201-C1

Rev.0

28-00-00

Page3

19Dec1997

DA20-C1AMM

Diamond.

Fuel

MAINTENANCEPRACTICES

1.General

Thesemaintenancepracticestellyouhowtoremoveandinstallcomponents.Theyalsotellyou

howtoflushthefuelsystem.SeeChapter28-00forthesystemdescription.SeeChapter28-40for

thefuelgaugeinstallation.

Obeytheusualsafetyprecautionswhenyoudoworkonthefuelsystem.

WARNING:DONOTALLOWHEATORFIRENEARFUEL.FUELBURNS

VIOLENTLY.THISCANCAUSEINJURYTOPERSONSAND

DAMAGETOEQUIPMENT

WARNING:

DONOTGETFUELONYOURSKIN.FUELCANCAUSESKIN

DISEASE.

2.Remove/lnstalltheFuelTank

A.RemovetheFuelTank

DetailSteps/WorkItems

KeyItems

(1)

Disconnectthebattery.

RefertoChapter24-31.

(2)

Attachthebatterycovertemporarily.

(3)

Disconnectanyexternalelectricalpower

fromtheairplane.

(4)

Defueltheairplane.

RefertoChapter12-10.

(5)

Removethebaggagecompartmentfloor.

RefertoChapter25-10.

(6)

Disconnectthefuelreturnhose.

(7)

Disconnectthefueldrainvalve.

I

(8)

Disconnectthefuelsupplyhoses.

(9)

Releasetherubberhoseforthefuelfiller:

-Releasethehose-clamps.

-Pullthehosefromtheconnection

sleeve.

(10)

Releasethesteelbandwhichholdsthetank.

Doc#DA201-C1

Rev.9

28-10-00

Page201

29Apr2004

Fuel

Diamond.

DA20-C1AMM

5kg

FuelTankStrap

D=5±1mm

TensionTestForTheFuelTankStrap

B-Bulkhead

Seatback

FuelTank

Figure2:Remove/lnstallFuelTank

Page202

28-10-00

Doc#DA201-C1

19Dec1997

Rev.0

DA20-C1AMM

Diamond.

Fuel

DetailSteps/WorkItems

KeyItems

(11)

Disconnectthewiresfromthefuelquantity

sensor.

(12)

Removethetankfromtheairplane:

RefertoFig:2.

-Liftthebackofthetankupwardsand

forwards.

-Tumthetankupside-downasyou

removeitovertheseatback.

B.InstalltheFuelTank

DetailSteps/WorkItems

KeyItems

(1)

Makesurethattherubberpadsarein

positiononthesparbridgeandtheB-

bulkhead.

(2)

Putthetankinpositionintheairplane:

RefertoFig:2

-Holdthetankupside-downwiththe

steppededgefacingaft.

-Movethetankabovetheseatback.

-Tumthetanksothatthesteppededge

goesdownbehindtheseatback.

-Keepturningthetankuntilitisthe

correctwayup.

(3)

Installthesteelbandwhichholdsthetank:

RefertoFig:2

-Tightenthenutsateachendequally.

-Pullupwardsonthemiddleofthestrap

Themovementofthestrapmustbe

withaspringbalance.

5±1mmat5kgload.

(0.15-0.23inat11lbload).

(4)

Connectthewirestothefuelquantity

sensor.

(5)

Installtherubberhoseforthefuelfiller:

-Putthehoseinpositiononthe

connectionsleeve

-Tightenthehose-clamps.

(6)

Connectthepipetothefueldrainvalve.

(7)

Connectthefuelretumhose.

I

(8)

Connectthefuelsupplyhoses.

Doc#DA201-C1

Rev.9

28-10-00

Page203

29Apr2004

Fuel

Diamond.

DA20-C1AMM

DetailSteps/WorkItems

KeyItems

(9)

Refueltheairplane.

(10)

Examinethefueltankinstallation.

Lookspeciallyforfuelleaks.

Note:

Ifyoufindaleakfromthetank(notfromtheconnections),youmustremove

thetankforrepair.Obeytheregulationsofyourairworthinessauthoritywhen

yourepairfueltanks.

(11)

Installthebaggagecompartmentfloor.

(12)

Removethebatterycoverandconnectthe

RefertoChapter24-31.

battery.

(13)

Bleedtheenginefuelsystem.

RefertoChapter73-00.

3.FlushTheFuelSystemProcedure

Thisproceduretellsyouhowtoflushthefuelfeedpipefromthefueltanktotheenginebay.

Obeytheusualsafetyprecautionswhenyoudoworkonthefuelsystem.

WARNING:DONOTALLOWHEATORFIRENEARFUEL.FUELBURNS

VIOLENTLY.THISCANCAUSEINJURYTOPERSONSAND

DAMAGETOEQUIPMENT

WARNING:

DONOTGETFUELONYOURSKIN.FUELCAN