Hitachi CH78EB (C) User manual

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3PARKPLUG&IG
4HESPARKPLUGCONDITIONISINČUENCEDBY
o!NINCORRECTCARBURETORSETTING
o7RONGFUELMIXTURETOOMUCHOILINTHEGASOLINE
o!DIRTYAIRüLTER
o(ARDRUNNINGCONDITIONSSUCHASCOLDWEATHER
4HESEFACTORSCAUSEDEPOSITSONTHESPARKPLUGELECTRODESWHICH
MAYRESULTINMALFUNCTIONANDSTARTINGDIFüCULTIES)FTHEENGINE
ISLOWONPOWERDIFüCULTTOSTARTORRUNSPOORLYATIDLINGSPEED
ALWAYSCHECKTHESPARKPLUGüRST)FTHESPARKPLUGISDIRTYCLEAN
ITANDCHECKTHEELECTRODEGAP2EADJUSTIFNECESSARY4HECORRECT
GAPISMM4HESPARKPLUGSHOULDBEREPLACEDAFTER
ABOUTOPERATIONHOURSOREARLIERIFTHEELECTRODESAREBADLY
ERODED
./4%
)NSOMEAREASLOCALLAWREQUIRESUSINGARESISTORSPARKPLUGTO
SUPPRESSIGNITIONSIGNALS)FTHISMACHINEWASORIGINALLYEQUIPPED
WITHRESISTORSPARKPLUGUSESAMETYPEOFSPARKPLUGFOR
REPLACEMENT
#UTTERBLADE&IG
4HEBLADESAREINSTALLEDTOTHECUTTERGUIDEWITHTHEFOURORüVE
BOLTS4HOSEBOLTSARETIGHTENEDWITHACLEARANCESOTHATTHECUTTERS
CANMOVESMOOTHLY
7HENCLEARANCEISTOOSMALL
4HECUTTERSDONOTMOVEPROPERLYANDTHESLIDINGSURFACESMAY
SEIZE
7HENCLEARANCEISTOOLARGE
4HECUTTERSAREPOORINSHARPNESS
4OADJUSTTHECUTTERCLEARANCE
,OOSENTHECUTTERüXINGNUTS
&ULLYTIGHTENTHECUTTERüXINGBOLTSANDTHENLOOSENTHEMAPPROX
TURN
7ITHTHEBOLTSSETATTHATPOSITIONTIGHTENTHECUTTERüXINGNUTS
"ESURETOREPLACECUTTERGUIDEüXINGBOLTSWHENTHEYARELOOSENED
WORNORDAMAGED!LSOBESURETOREPLACEDAMAGEDCUTTERBLADE
./4%
0ROPERLYLUBRICATETHECUTTERSLIDINGSURFACESWITHMACHINEOIL
'EARCASE&IG
!PPLYAGOODQUALITYLITHIUMBASEDGREASETHROUGHTHEGREASE
üTTINGUNTILASMALLAMOUNTCOMESOUTBETWEENTHECUTTERBLADES
ANDTHEGEARCASE
./4%
,UBRICATIONSHOULDBEAPPLIEDATHOURINTERVALSANDMORE
FREQUENTLYWITHHEAVYUSE
&UELüLTER&IG
2EMOVETHEFUELüLTERFROMTHEFUELTANKANDTHOROUGHLYWASHITIN
SOLVENT!FTERTHATPUSHTHEüLTERINTOTHETANKCOMPLETELY
./4%
)FTHEüLTERISHARDDUETODUSTANDDIRTREPLACEIT
&ORLONGTERMSTORAGE
$RAINALLFUELFROMTHEFUELTANK3TARTANDLETENGINERUNUNTILIT
STOPS2EPAIRANYDAMAGEWHICHHASRESULTEDFROMUSE#LEANTHE
UNITWITHACLEANRAGORTHEUSEOFHIGHPRESSUREAIRHOSE0UTAFEW
DROPSOFTWOCYCLEENGINEOILINTOTHECYLINDERTHROUGHTHESPARK
PLUGHOLEANDSPINTHEENGINEOVERSEVERALTIMESTODISTRIBUTEOIL
#OVERTHEUNITANDSTOREITINADRYAREA
-AINTENANCESCHEDULE
"ELOWYOUWILLüNDSOMEGENERALMAINTENANCEINSTRUCTIONS&OR
FURTHERINFORMATIONPLEASECONTACT()4!#()!UTHORIZED3ERVICE
#ENTERS
$AILYMAINTENANCE
o#LEANTHEEXTERIOROFTHEHEDGETRIMMER
o#HECKTHEBLADEGUARDFORDAMAGEORCRACKS
#HANGETHEGUARDINCASEOFIMPACTSORCRACKS
o#HECKTHATTHEBLADEISSHARPANDWITHOUTCRACKS
o#HECKTHATTHEBLADENUTISSUFüCIENTLYTIGHTENED
o-AKESURETHATTHEBLADETRANSPORTGUARDISUNDAMAGEDANDTHAT
ITCANBESECURELYüTTED
o#HECKTHATNUTSANDSCREWSARESUFüCIENTLYTIGHTENED
7EEKLYMAINTENANCE
o#HECKTHESTARTERESPECIALLYCORD
o#LEANTHEEXTERIOROFTHESPARKPLUG
o2EMOVETHESPARKPLUGANDCHECKTHEELECTRODEGAP!DJUSTIT
 TOMMORCHANGETHESPARKPLUG
o#HECKTHATTHEAIRINTAKEATTHESTARTERISNOTCLOGGED
o#HECKGEARCASEISüLLEDWITHGREASE
o#LEANTHEAIRüLTER
-ONTHLYMAINTENANCE
o2INSETHEFUELTANKWITHGASOLINEANDCLEANFUELüLTER
o#LEANTHEEXTERIOROFTHECARBURETORANDTHESPACEAROUNDIT
1UARTERLYMAINTENANCE
o#LEANTHECOOLINGüNSONTHECYLINDER
o#LEANTHEFANANDTHESPACEAROUNDIT
o#LEANTHEMUFČEROFCARBON
#!54)/.
#LEANINGOFCYLINDERüNSFANANDMUFČERSHALLBEDONEBYA
()4!#()!UTHORIZED3ERVICE#ENTERS