Masalta MRT73 User manual

OPERATIONMANUAL
RIDEONPOWERTROWEL
MRT73
WARNING
!
Toreducetheriskofinjury,alloperatorsandmaintenancepersonnelmustreadandunderstandthese
instructionsbeforeoperating,changingaccessories,orperformingmaintenanceonMasaltapower
equipment.Allpossiblesituationscannotbecoveredintheseinstructions.Caremustbeexercised
byeveryoneusing,Maintainingorworkingnearthisequipment.

1
TableofContents
1. SAFETYINFORMATION... 2
1.1OperatingSafety .. ..2
1.2OperatorSafetywhileusing InternalCombustion Engines .. ..2
1.3LabelLocations .. 3
1.4SafetyandOperatingLabels ... .3-4
2. OPERATION .... 5
2.1Control ..5
2.2OperatingPrinciple 5
2.3DeliveryChecks .6
2.4BeforeStarting .. ..6
2.5ToStart 6
2.6ToStop ... 6
2.7 Operation ..7
2.8Steering ... .7
2.9PitchAdjustment .7
3. MAITENANCE .. .. . 8
3.1 PeriodicMaintenanceSchedule .. 8
3.2TrowelGearbox .. 8
3.3Lubrication .. .9
3.4TransportingTrowels .. .. .9
3.5SparkPlug 9
3.6AirFilter ..10
3.7TroubleShooting .. .10
4.TECHNICALDATA ... ... .. 11
WARRANTY ...... .12
MAINTENANCERECORD .... ..13
.
ECDECLARATION ..... 14

2
SAFETYINFORMATON
1.1OperatingSafety
lNEVERoperatethismachine inapplication forwhichit isnot intended.
lNEVERallowanyonetooperatethisequipmentwithout propertraining. Peopleoperating
thisequipmentmust befamiliarwiththe risks and hazardsassociated withit.
lNEVERoperatethisunitwithout all guardsinplace.Keephands, feet, clothingandjewelry
awayfromthe unitbladesand all movingparts.Rotatingand movingpartswill cause
seriousinjuryifcontacted duringoperation.
lDO NOTallowanyonetostankorleanon the unit duringoperation.
lALWAYSKeepthesafetystopswitchsysteminadjustmentandgoodoperatingcondition at
all times.Donotoperatethe trowelifitdoesnotworkproperly.OutofcontrolTrowelscan
causeseriouspersonalinjuryand damagetofreshconcretesurfaces.Thissystemwill
automaticallystopthe unit ifthe operatorlosescontrolofit duringoperation.
lALWAYSmakesurethe safetystopswitchisdisengaged (leverinthe downposition)before
startingthe unit. Keepone handfirmlyon the handlewhilestartingand do notletgoof the
handleduringoperation.
lALWAYSwearprotectiveclothingappropriatetothe jobsitewhen operatingthe machine.
lALWAYSclosefuelvalveon enginesequipped withonewhen machine isnotbeing
operated.
lALWAYSstorethe machine properlywhen itisnotbeingused.The machine shouldbe
stored inaclean,drylocation out ofthereachofchildren.
1.2OperatorSafetywhileusing Internal Combustion Engines
lDO NOTsmokewhen refuelingthe engine orduringanyotherfuelhandlingoperation.
lDO NOTrefuelahotorrunningengine.
lDO NOTrefuelthe engine nearan open flame.
lDO NOTspill fuelwhen refuelingthe engine.
lIffuelisspilled duringrefueling,wipeit offfromthe engine immediatelyanddiscardthe rag
inasafeplace. Donotoperatetheunit iffueloroil leaks exist-repairimmediately.
lNEVERoperatethisequipment inan explosiveatmosphere.
lNEVERoperateanygaspowered equipment inapoorlyventilated orenclosed area.
lNEVERperformanyworkon theunitwhileitisrunning.Beforeworkingon it, stopthe
engine anddisconnect thesparkplugwiretoprevent accidentalstarting.
lAvoidprolonged breathingofexhaust gases.
lAvoidcontact withhotexhaustsystemsand engine parts.
lAllowengine tocoolbeforeperforminganyrepairsorservice.
lALWAYStransport and handlefuelonlywhen contained inapproved safetycontainers.
lALWAYSkeepthe area around the mufflerfree ofdebrissuchasleaves,paper,cartons,etc.
Ahot mufflercouldignitethe debrisand start afire.

3
SAFETYINFORMATION
1.3Label Locations
1.4Safetyand Operating Labels
Masaltamachinesuseinternationalpictoriallabelswhereneeded. Theselabelsaredescribed below:
Ref. Label Meaning
a DANGER!
Enginesemit carbon monoxide; operateonlyin
well-ventilatearea. ReadtheOperation Manualfor
machine information. Nosparks, flames, orburning
objectsnearthemachine. Shutoffthe engine
beforerefueling. Useonlyclean,filtered unleaded
gasoline.
b
WARNING! Cuttinghazard.Alwaysreplaceblade guard!
c Steeringcontrol. Refertosection Steering.

4
SAFETYINFORMATION
Ref. Label Meaning
d WARNING!
Alwayswearhearingand eyeprotection when
operatingthismachine.
e
Watertankfill. Useonlyclean wateror
water-based retardants.
f
CAUTION!
Check the fuel.Useonlyclean,filtered gasoline
fuel.
g WARNING!
Hand injuryifcaught inmovingbelt.
Alwaysreplacebelt guard.
h
CAUTION!
Tie-downpoint.
i Keyswitch, engine start: Off
On
Start
j
WARNING!
Hot surface!
k WARNING!
Read andunderstand the supplied Operation
Manualbeforeoperatingthe machine. Failureto
do soincreasetherisk ofinjurytoyourselfor
others.
Anameplatelistingthe modelnumberand serial
numberisattached toeachunit. Pleaserecordthe
information found on thisplatesoit willbe
availableifthe nameplatelost ordamaged.
When requestingserviceinformation, the serial
numbershouldbespecified ofthe unit.

5
OPERATION
2.1Controls
Ref. Description Ref. Description
A Right PitchControl H WorkLight (one eachside)
B Left PitchControl I Right Foot Pedal(SafetyStopSwitch)
C WaterTank J Left Foot Pedal(ThrottleControl)
D FuelTank K WorkLight Switch
E Right ControlArm L Engine Keyswitch
F Left ControlArm M WaterSprayControl
G Operator’sSeat
2.2OperatingPrinciple
The followinginstructionswerecompiled toprovideyouinformation on howtoobtainlongand
troublefree useoftheunit.Periodicmaintenanceofthisunitisessential.Readthemanualinits
entiretyandfollowthe instructionscarefully. Failuretodo somayinjureyourselforabystander.

6
OPERATION
2.3DeliveryChecks
Immediatelyontakingdeliveryofyournewequipment andbeforeputtingit intoservice.
lRead theoperation manualcompletely—it couldsaveagreat dealofunnecessaryexpense.
lRead theengine manualsupplied.
lCheck the generalcondition ofthe equipment –hasit been damaged duringdelivery?
lCheck engine oil level.
lCheck fuellevels.
Recommended lubricantsaredetailedintheCareandMaintenancesection.
2.4BeforeStarting
NewRide-on PowerTrowelhasbeen assembledand tested atthe factory.However,before
startingthe trowel, the followingitemsshouldbechecked:
●Fuellevel
●Waterlevel
●Waterleve
●Oil levelinthe engine
●Condition ofthe airfilter
●Condition oftrowelarmsand blades
●Greasethe trowelarmsdaily.
NOTICE: Check theoil levelintheengine andgearbox.Engine andtrowelwarrantiesareVOIDif
thisunit isrun without oil.
2.5ToStart
Beforestartingthe operatormust knowthe location and function ofall controls.
1.Adjust thechairtothe comfortableposition forthe operator.
2.Pushdownon the left safetystoppedal,turnthe engine keyswitch,and holdituntil the engine
starts.
NOTICE:Ifthe engine iscold,pull outthe chokecontrolknobfully.The chokemayneedtobe
opened even when startingawarmengine.
NOTICE:Crankingthe engine formorethan 5secondscan causestarterdamager.Ifthe engine
failstostart, releasethekeyswitchand wait 10 secondsbeforeoperatingthe starteragain.
3.Allowthe engine towarmupbeforeoperatingthe trowel.
4.Pushdownon the throttlefoot pedaltostart thetrowel
2.6ToStop
1.Returnthe controlleverstotheirneutralposition andreleasepressureon the throttlefoot pedal.
2.Releasepressureon thesafetystopswitch.
3.Tostopthe engine, turnthe keyswitchto “O”(off).
NOTICE: Releasethe safetystopswitchforemergencystop.

7
OPERATION
2.7Operation
ToutilizeyourRide-OnTroweltoitsfullestcapacity,the machine shouldbedriven inthe direction
thattheoperatorisfacing.Thiswill finishthe widestpossiblearea,whilegivingthe operatorand
excellentviewofthe slabsurfaceabouttobetroweled.When the machine reachesthe endofthe
slab,makea180°U-turn, andrepeat the straight line ofdirection tothe otherend ofthe slab.
NOTICE:DONOTuseexcessivepressureon thecontrollevers.Excessivepressuredoesnot
increasethe reaction timeofthe machine and candamagethe steeringcontrols.
NOTICE:Attemptingtousethe troweltoo earlyinthecuringstageof the concretemayresultinan
undesirablefinish. Onlyexperienced concretefinishersshouldoperatethe trowel.
2.8Steering
Refertothe illustration forthe necessaryhand motionstomovethe trowelinthe desired direction,
described below:
1.reverse
2.forward
3.rotateclockwise
4.rotatecounter-clockwise
5.left sideways
6.right sideways
2.9PitchAdjustment
When changingorsettingthe pitch(angle)ofthe trowelblades,slowthe machine,setthedesired
pitchon the left sideofthe machine, then adjust the right side tomatch.
Toincreasethepitch, turnthe pitchcontrolinward.
12
34
56

8
MAINTENANCE
3MAINTENANCE
3.1PeriodicMaintenanceSchedule
The chartbelowlistsbasictroweland engine maintenance.Refertoengine manufacturer’s
Operation Manualforadditionalinformation onengine maintenance.Acopyoftheengine Operation
Manualwassupplied withthe machine when itwasshipped.Toservicethe engine,tiltthe seat
forward.
Daily Every
20
hours
Every
50
hours
Every
100
hours
Every
200
hours
Every
300
hours
Greasetrowelarms. ●
Check fuellevel. ●
Check engine oil level. ●
Inspect airfilter. Replaceasneeded. ●
Check externalhardware. ●
Pressurewashall surfacesuntil free
ofconcrete. ●
Check oil levelingearboxes. ●
Greasegearbox, drivesystemand
pitchpostsfittings. ●
Greasecontrollinkage. ●
Check drivebelt forwear. ●
Changeengine oil. ●
Check fuelfilter. ●
Clean andcheck sparkplug. ●
Replaceoil filter. ●
Replacesparkplug. ●
Replacefuelfilter. ●
Replacegearboxpressurereliefvalve. ●
Replaceoil ingearboxes. ●
3.2TrowelGearbox
Check thegearboxesforthecorrect oil levelafterevery20hoursofoperation.Change thegearbox
oil every300 hours.
NOTICE: DO NOTmixtypesofgearoil. DO NOToverfill the gearboxwithoil. Damagetothe
gearboxmayoccurifoilsaremixed, orifthe gearboxisoverfilled. See TechnicalDataforoil
quantityand type.

9
MAINTENANCE
3.3Lubrication
1.Engine oil
Thelonglifeand successfuloperation ofanypieceofmachineryisdependent onfrequent and
thoroughlubrication
Beforeusingthe trowel,alwayscheck yourengine foroil.Useproperengine oil asrecommended in
the engine manufacturer’smanual. Fillcrankcasetolevelsasrecommended.
2.Trowel
Thedrivesystem, gearboxand pitchpostsareequipped withseveralgreasefittings. Greasethese
fittingsonceaweek, orevery20 hours, topreventwear.
Useageneralpurposegreaseand addone totwoshotsofgreaseat eachfitting.
3.4Transporting Trowels
ALWAYSturntheengine offand removethe keyfromthe machine beforemovingortransporting
machine.
Tohoist thetrowel:
1.Attachaslingorchainsthroughthe
tie-downpoint (a)on eachside ofthe
guardring.
2.
NOTICE: Makesureliftingdevicehasenough
capacitytoholdmachine (see identification
plateon machine forweight).
2. Put theliftingtube(b)intothe tubeon
eachside ofthe guardring.
3.5SparkPlug
Check andcleansparkplugsregularly.Afouled,dirtysparkplugmaycausehardstartingand
poorengineperformance.Set sparkplug gaptorecommendedclearance. Refertoengine
manual.
The mufflerandenginecylinderbecomeveryhot duringoperationandremain
hot forawhileafterstoppingtheengine.Allowengine tocoolbeforeremoving
sparkplug.
NOTICE:Aloosesparkplug canbecomeveryhotandmaycauseenginedamage.
!
WARNING

10
MAINTENANCE
3.5AirCleaner
Maintainingaclean engine will extend engine life. Keepairfilterclean at all times. Clean airfilter
usingthe recommended solvent daily. See engine manualforpropercleaningprocedure. Let the
filterdrybeforereinstalling.
NEVERusegasoline orothertypesoflowflashpoint solventsforcleaningthe air
cleaner.Afireorexplosion couldresult.
3.6Troubleshooting
SYMPTOM POSSIBLECAUSES SOLUTION
Engine doesnot start. Engine problem. Consult engine manufacturer’s
servicemanual.
Operatorisover-steering. Themovement ofeachgearboxis
controlled by “stops”toprovide the
correct relationshipofthe control
armmovement tomachine
movement. Excessivepressureon
controlarmsinanydirection will
not increasereactiontimeand can
damagesteeringcontrolscausing
machine towobble.
Trowelarm(s)bent. Replacetrowelarms(s).
Trowelblade(s)bent. Replacetrowelblade(s).
Machine outof
balance; wobbling
excessively.
Mainshaft(s)bent due to
machine beingdropped. Replacemainshaft(s).
Drivebeltbroken. Replacedrivebelt.
Vacuumbetweenbottomof
bladesandsurfaceof
concrete.
Changepitchonbladestobreak
suction.
Machine doesnot
move.
Keyshearedinthemain
shaft. Replacedamaged key.
Trowelbladeshave
becomemisaligned and
arecontactingeachother
duringrotation.
Replacedamaged blades.Align
bladessothat oneset
representsa(+)and the otheran
(x)whenviewedfromabove.
Shearedkey. Check all keysindrivesystem.
Trowelnoisy.
Looseclutch. Tightenclutch.
!
WARNING

11
TECHNICALDATA
4.TECHNICALDATA
Enginetype
HondaGX670
Power kw(hp) 17.6(24)
Operatingweight
kg(lb) 280(617)
Bladespeed rpm 130-150
Bladepitch(range) degree 0-30
Gearboxtype Heavy duty
Gearboxlubrication type AGIPTELIUM.VSF320
L(oz.) 0.78(26)each
Workingdia.mm (in) 1860 (73)
Overlapping type Non-overlapping
WorkingSize(LxWxH):1900x1000x1050mm (75x39 x41in)
SoundSpecification (Accordingto2000/14/EC)
Measured soundPowerlevel91.7dB(A)
Guaranteedsoundpowerlevel 104.7dB(A)
Vibration Specification(According toISO2631andEN1033):
for wholebody: 0.215m/s2for handarm:1.81m/s2
The soundandvibrationspecificationswereobtainedwiththeunitoperatingonfullycured,water
wettedconcreteat nominalenginespeed.

12
WARRANTY
MASALTAproductsarecoveredbywarrantyforaperiodofsix(6)monthsfromthedateof
purchaseagainstdefectsinmaterialorworkmanshipprovidedthat:
lTheproductconcernedhasbeenoperatedandmaintainedinaccordancewiththeoperating
instructions.
lHasnotbeendamagedbyaccident,misuseorabuse.
lHasnotbeentamperedwithorrepairedbyanyunauthorizedperson.
Theownerisresponsibleforthecostof transportationtoand fromtheauthorized repairerandthe
unit isattheownersrisk whileintransittoand fromtherepairer.
Impactdamageisnotcoveredunderwarranty.Clutchesarenotcoveredunderany
warranty.
Enginesareofficiallyguaranteedbyenginemanufacturer.Please refertotheannexfor
enginewarranty.

13
MAINTENANCERECORD
PREVENTATIVE MAINTENANCEAND ROUTINESERVICEPLAN
ThisRide-on PowerTrowelhasbeenassembledwithcareandwill provide yearsof service.
PreventativemaintenanceandroutineserviceareessentialtothelonglifeofyourRide-on Power
Trowel.Afterreadingthroughthismanualthoroughly, youwill findthatyoucan dosomeof the
regularmaintenanceyourself.However, wheninneedof partsormajorservice,be suretosee
yourdealer. Foryourconveniencewehaveprovided thisspacetorecordrelevantdataabout your
Ride-onPowerTrowel.
InvoiceNumber: Type of Machine:
DatePurchased: DealerName:
SerialNumber: DealerPhone:
REPLACEMENTPARTSUSED MAINTENANCELOG
PARTNO. DESCRIPTION QTY COST DATE DATE OPERATION

14
ECDECLARATIONOFCONFORMITY
CE-KONFORMIT TSERKL UNG
DECLARACIÓNDECONFORMIDADDELACE
DÉCLARATIONDECONFORMITÉC.E.
MASALTAENGINEERING CO., LTD
Weisi Road, BaoheIndustrial Estate, HeFei 230051, China
herebycertifiesthattheconstructionequipmentspecifiedhereunder/bescheinigt, da.dasBauger.t /certifica
quelam quinadeconstrucción/ attestequelematériel:
1.Category/ Art/ Categoría/ Catégorie:
RideOnPowerTrowel
2. Type/ Typ/Tipo/ Type:
MRT73
hasbeenproducedinaccordancewiththefollowing standards:/in übereinstimmungmitfolgendenRichtlinien
hergestelltwordenist:/hasido fabricadoenconformidadcon lassiguientesnormas:/a étéproduit
conformémentauxdispositionsdesdirectiveseuropéennesci-après:
2006/42/EC
2004/108/EC/EN55012:2007(EMC)
EN12649
15.02.10 Hermann JosefLensing
--------------------------------------------------- ResearchandDevelopment Manager
Date/ Datum/ Fecha / Date

DistributedBy
MASALTAENGINEERING CO.,LTD
Add: WeisiRoad, BaoheIndustrialEstate, Hefei230051, China
Tel:[phone] Fax: [phone]
E-mail: [e-mail], [e-mail]
Http://www.masalta.com.cn
Version:01/09/01