Installation Instructions

5.Useawoodenpoletoremovetheblockage.
Important:Theailrotormayrotatewhen
youreleasetheblockage.
Important:Supportthewoodenpoleinthe
cuttingunittoavoidusingexcessiveforce
whenyouremovetheblockage.
6.Removethewoodenpolefromthecuttingunit
beforeyoustarttheengine.
7.Repairoradjustthecuttingunitifnecessary.
CheckingtheRubberGuard
ServiceInterval:Beforeeachuseordaily
Inspecttherubberguardforwearordamage(Figure
15).Replacetherubberguardifitisdamagedto
preventobjectsbeingthrowntowardyou.
g034658
Figure15
1.Rubberguard
CheckingtheCutting-Unit
Pivot
ServiceInterval:Every50hours
1.Raiseandsupportthecuttingunit.
2.Gripeachcuttingunitandcheckforexcessive
playfromsidetosideorupanddown.
CheckingtheRotor
ServiceInterval:Beforeeachuseordaily—Checkfor
anyunusualvibrationoftherotor.
Every50hours—Checkforexcessiveplayin
therotorbearings.
Tocheckforanyunusualvibrationoftherotor,run
eachcuttingunitinturnatfull-enginespeed.
Note:Ifanythereisunusualvibration,checkfor
damageorexcessivewearoftherotororblades.All
bladesneedtohaveasimilarlevelofwearastheir
weightaffectsthebalanceoftherotor.
Note:Ifyoucannotresolvethevibrationissue,
contactyourAuthorizedServiceDealer.
1.Raiseandsupportthecuttingunit.
2.Griptherotorateachendandcheckfor
excessiveendplay.
Note:Ifyoudetecttherotorhasexcessiveend
play,contactyourAuthorizedServiceDealer.
Note:Iftherotorneedstobereplacedor
balanced,contactyourAuthorizedService
Dealer.
CheckingtheRear-Roller
BearingAdjustment
ServiceInterval:Every50hours
Important:Keeptherollerbearingsonthecutting
unitsingoodadjustmenttoensuremaximum
workinglife.Excessiveroller-endplaycauses
prematurebearingdamage.
1.Griptherollerandmovefromsidetosideand
upanddown.
2.Ifthereisexcessivemovement,carefullytighten
thenutsateachendoftherollerwiththewrench
justenoughtoremoveanyendplay(Figure16).
Note:Therollershouldstillrotatefreelyafter
adjustment.Overtighteningthenutscouldlead
toprematurebearingdamage.
Note:Adjustthenutsbyanequalamountat
bothendsoftheroller.
g014441
Figure16
1.Nut
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