KOVO EW240G User manual



WWW.CN‐KOVO.COM
1
FORWARD
Firstly,thankyouverymuchforpurchasingKOVOEngineDrivenWelders.
Thismanualistheguidancethatleadsyoutooperatetheenginedrivenwelderincorrectand
safeway.Pleasegooverandunderstandthecorrectwaysofinstallation,inspection,operation
andmaintenancebeforetouchingthewelder.
Asforthedetailofengine,pleaserefertotheEngineManualissuedbytheengine
manufacturer.
Pleasekeepthemanualinavailablewheneveryouwantinstructionsaboutthemachine.
TheOperationManualissubjecttochangewithoutnoticeduetotheredesignfor
improvementofquality.Ifyouhavequestion,pleasecontactourlocaldistributor.







SIGNSFORSAFETY
Thefollowingsignsindicateastrongpossibilityofseverepersonalinjury,lossoflifeand
equipmentdamageifinstructionsarenotfollowed.

Causinglossoflifeorinjuryifmisusing


Causinginjuryorequipmentdamage


Shorteningthewelderlifeandperformance










WWW.CN‐KOVO.COM
2



CONTENTS

ITEMPAGE
1．SafetyPrecautions3

2．Specifications5

3．OutlineandComponents6

4．Pre‐check7

5．Thefeaturesofmachine7

6．Operation8

7．MaintenanceSchedule11

8．TroubleShooting13

9．Preparationforstorage14

10．WiringDiagram15

Appendix
*WarrantyPolicy
*RegistrationForm
*AccessoriesList













WWW.CN‐KOVO.COM
3

1. Safetyprecautions
1‐1General
Fuelprecautions
●Pleaseusethenon‐leadgasolineasfuel,andkeepfarawayfromfirewhenrefueling.
●Yourmuststoptheenginebeforerefueling.Wipeoffthespilledgasoline.Donotleavefueland
otherinflammablesneartheexhaustpipe.

Emissionprecautions:
●Donotoperatethewelderinsidearoom,caveandotherinsufficientventilatedareabecauseof
poisonousemissiontopeopleandanimals.
Operatingprecautions
●Dostoptheenginefordailycheck,regularinspection,oilrefillingandcleaningwithreferenceto
“OperationManual”

Electricshock
●Pleasedonotoperatewithwethand(s)andinrainyandsnowyday.
●Pleaseconnecttheweldingterminalsafterstopping.Donottouchtheweldingterminalsduring
operating.
●Donotusecablewithinjuredinsulatingcover.

Cleaning
●Usedryclothorpressurizedairforcleaning.Donotusewaterordetergentincaseinsulation
trouble.
Alsopleasebewareofothersafeprecautionsnotcoveredbythismanual.

1‐2Transportation
●Pleasetiethepipeframeofmachinetothecarrierofvehiclewhentransportation.Alsoput
wheel‐stopper.
●Whenloadingorunloading,pleasehangtheframebyropeandpulleyhorizontally.Donotlift
theengineorgeneratorportion.
1‐3Installation
●Placethemachineinthelevelground.Thegradientdoesnotexceed5o
●Pleaseremoveobstaclesblockingairinletandoutletofmachineawayformwall.
●Whenyouoperatethemachineonsandysoil,putawoodenboardonthegroundtoavoidsand
comingintothemachine.Thesandmaycauseinsulationtroubles.

WWW.CN‐KOVO.COM
4

●Pleaseplacethemachineoutofweldingspatter
●Pleasereferto1‐1
1‐4Beforeoperation
●Pleasewearproperprotectiveclothes,leathergloves,hatandhelmet.
●Pleasecheckbeforestartingengine.Repairbeforerestartingifanyabnormaloccur.
●Pleasereferto1‐1
1‐5Duringoperation
●Pleasebewareofinjurybyheatbecausetheexhaustpipewithhigh‐temperaturewheninthe
operationorjustafterstop.
●Pleasereferto1‐1
1‐6Storageofmachine
●Keepinadry,cleanandlow‐saltroomhorizontally.
●Donotcoverthemachinewithplasticclothforlong‐termastoavoidgettingrustyandinefficient
insulation.
●Whenyouputthemachineinstorageforlongtime,removebatteryfrommachine,drainbattery
liquid.Ifanydefectiveparts,repairthemforthenextoperation.
●Pleaserunengineatleastoncefor3monthsandconfirmthemachine’scondition.
●Referto1‐1

yAuxiliarypowerofthemachineisONLYforgeneralpowertoolequipment.

















WWW.CN‐KOVO.COM
5

2.Specifications

MODELEW240G
BrushlessYES
W
E
L
D
E
R
RatedPowerKW6.3
RatedCurrentA220
RatedVoltageV28.8
Open‐circuitVoltageV75
DutyCycle%50
CurrentRangeA55~240
ApplicableElectrodeφmm2.0~5.0
A
U
X.
RatedPowerKW3.0
RatedVoltageDCV220/120
RatedCurrentDCA13.7/25
PowerFactor%100
Coupling —DirectCoupling


E
N
G
I
N
E
Name—
HONDAGX390/
KOHLERCH440
Type—4‐stroke,singlecylinder
Displacement L0.389/0.429
OutputH.P13/14
No‐loadSpeedrpm3300
RatedSpeedrpm3100
StartSystem—Recoil/Electric
Fuel—Gasoline
CoolingSystem—Air‐cooled
Lub.OilCapacityL1.1
FuelTankCapacityL6.5/16
Dimensions mm725×540×570
WeightKg90




WWW.CN‐KOVO.COM
6

3.OutlineandComponents
















OUTLINE
















CONTROLPANEL




WWW.CN‐KOVO.COM
7


4.Pre‐check

4‐1Lubricatingoil
●Checktheamountandconditionoflubricatingoilbeforeoperation.Pleaseinserttheoildipstick
fully,andthenpullouttocheckit.MakesuretheoilstainisbetweenLowandFulllevels.Adding
toomuchoil(higherthanFULLlevel)maycausedamagestotheengine.
●Donotpulloutthedipstickduringoperation.Hotoilwillbespout,causingdanger.
●PleaseadoptSEclassofSFclassification,andrecommendSE10W30forallseason.Inferioroil
shortensenginelife.
●Donotmixtwoormoredifferenttypesoil.
4‐2Fuel
●Makesuretheamountoffuelisenoughforyouroperation
●Pleaseadoptnon‐leadgasoline(forautomobiles)
4‐3Wiringandconnector
●Pleasecheckandmakesureallthewiresandconnectorsarenotinjuredornotloosened.Ifso,
pleasedealwithintime.Afterchecking,starttheenginetoobserveiftheoilandfuelareleaked.

5.Featuresofmachine
5‐1Characteristics
●Brushlessalternatorforeasymaintenance
●Goodweldingperformanceformeetingkindsofweldingrequirement
●Auto‐throttledevicesforsavingthefuel(*)

Weldingpowerandauxiliarypowercannotbeoperatedsimultaneously.
5‐3Protectionsystem
●Oncethewelderorauxiliarypowerisgoneout,stoptheengineandrestarttilltheproblemis
workedout.
●Pleasecheckfuseoncenooutput
●Breakercannotbeusedforswitchfunction.



WWW.CN‐KOVO.COM
8
6.Operation
6‐1Enginestart
●Turn“OFF”theauxiliarypowerBREAKER
●Openthefuelcock
●Closethechoke
●Turn“ON”theAUTO‐THROTTLE(*)
●Pulltherecoilstarttostarttheengine,thenopenthechoke(recoilstart)
●Warmuptheengineabout5minutesinidlespeed


●Whenyoustartengine,donotrestartincasecausetherecoilingsystemproblem.
●Pleasewarmuptheengineforapprox.5minutesinidlingspeed.Immediateloadingoncold
enginemakesshorterenginelife.
●Thealternatorwillbebrokenifwelderorauxiliarypowernotusedatratedspeed.
●Pleasemakesurethereisnoleakageoffueloroilduringengineoperation.
●Thespeedcontrolleverispaintedbymanufacturer.Donotadjustitbyyourself.Theenginewill
beinabnormalspeedanddamagedifyoudonotfollownotesabove.

6‐2Enginestop
●Disconnecttheload,andruntheengineinlowerspeedwithoutload
●Turntheswitchto“OFF”positiontostopengine
●Closethefuelcockafterstoppingengine
6‐3Weldingoperation
6‐3‐1Procedure
●Pleasechooseadequateweldingcableaccordingtotheweldingwork.Connectthewelding
cablesbeforeyoustarttheengine.
●Starttheengine(referto6‐1)
●Selectthecurrent(LOWorHIGH)foryourweldingoperationbyswitchingcurrentrange.And
adjustpropercurrentwiththeweldingoutputcontroller.



