Operator's Manual

1.Ensurethatthemachineisonlevelgroundandthe
surroundingareaisclearofobstacles.Disconnectthe
machinefromthetowvehicleandchockthefrontand
backofbothtirestopreventanymovement.
2.ReadalltherecommendationsfromtheSafetysection;
refertoSafeOperatingPractices(page4)beforeusing
themachine.
3.Starttheengineandclosetheenginecowl.Allow
theenginetowarmupatidlefor2minutes;referto
StartingtheEngine(page23).
4.Usethehandwheeltomovethedrumintoanupright,
slightlytiltedpositiontoallowaccessforpouring
materialsintothedrum.Thispositionalsoallowsthe
mixingpaddlestomixthematerialsmoreeffectively.
5.Pushthedrum-tiltbrakedowntolockthedruminto
positionandavoidaccidentallydumpingthematerial.
Important:Ifyouneedtostopthemachine,usethe
engineswitchlocatedonthecowl;refertoStoppingthe
Engine(page24).
MixingtheMaterial
DANGER
Eyeandskincontactwithconcretematerialsand
breathingthedustinvolvedishazardoustoyour
health.
•Ensurethatthereisadequateairventilation.
•Wearadustmasktopreventinhalationofdust
whileusingthemachine;refertoSafeOperating
Practices(page4).
•Avoiddirectcontactofcementandconcrete
materialswithskinandeyes.
Important:Donotaddmorematerialthanthebatch
capacityforyourspecicmachinemodel;referto
Specications(page13).
Note:Followthemanufacturer’sinstructionsthatareprinted
onthepackagingoftheproductthatyouareusing.
Concretehasthefollowing4basicingredients:
•Sand
•Gravel
•Portlandcement
•Water
Dependingontheapplication,differentratiosofthese4
ingredientscanbeused.
Therearemanyvariationsofconcretemixrecipes,depending
ontheapplication.Itisimportanttousetheappropriate
quantityofwater.Usingtoolittlewaterwillresultindryareas
inthemix,butusingtoomuchwaterwillresultinweaker
concrete.Theamountofwaterneededwillvarydepending
onmoisturecontentofthesandandgravel.Themixshould
haveathicknesssimilartothatofpeanutbutter.
Keepthepouredconcretedampforseveraldaystoobtain
propercuring.Evaporationresultsinweakerconcrete.
Concretecuresthroughhydration,areactionbetweenwater
andcement.
MixingPre-mixConcrete
1.Ensurethatthetiltbrakeisfullyengagedandthatthe
drumisoperatingatfullspeed.
2.Pourwaterintothedrum.
3.Addtherequiredamountofdrypre-mix.
4.Allowthedrumtoturnwhilethemixreachesthe
appropriateconsistency.
MixingSand,Gravel,andCement
Thetypicalratioformixingconcreteis1partPortland
cement,2partssand,and3partsgravel.
1.Ensurethatthetiltbrakeisfullyengagedandthatthe
drumisoperatingatfullspeed.
2.Pourwaterintothedrum.
3.Addtherequiredamountofgravel.
4.AddtherequiredamountofPortlandcement.
5.Addtherequiredamountofsand.
6.Allowthedrumtoturnwhilethemixreachesthe
appropriateconsistency.
Note:Addingwaterandgravelbeforecementandsand
allowsthemixleftinthedrumfromthepreviousbatchtobe
tumbledoffofthedrumandpaddlesandintothenextbatch.
UsingtheDrum
DANGER
Contactwiththemixingpaddlescouldcause
damageorinjury.
Neverputyourhandsinsidethedrumwhilethe
engineisrunning.
DumpingtheDrum
Note:Whendumpingabatchofmaterial,leavetheengine
runningsothattherotatingdrumhelpsdumpthematerial.
1.Alignawheelbarroworsimilarcontainerofadequate
capacityinthepathofthedrumopening.
2.Whilethedrumisturning,rmlygraspthehandwheel
withonehand.
3.Usingyourotherhand,pullupwardonthedrum-tilt
brakehandletoreleasethebrake.
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