CheckingtheHydraulic
LinesandHoses
ServiceInterval:Beforeeachuseordaily
Every2years
Inspectthehydrauliclinesandhosesdailyfor
leaks,kinkedlines,loosemountingsupports,wear,
loosettings,weatherdeterioration,andchemical
deterioration.Makeallnecessaryrepairsbefore
operatingthemachine.
WARNING
Hydraulicuidescapingunderpressurecan
penetrateskinandcauseinjury.
•Seekimmediatemedicalhelpifuidis
injectedintoskin.
•Makesurethatallhydraulic-uidhoses
andlinesareingoodconditionandall
hydraulicconnectionsandttingsaretight
beforeapplyingpressuretothehydraulic
system.
•Keepyourbodyandhandsawayfrom
pinholeleaksornozzlesthateject
high-pressurehydraulicuid.
•Usecardboardorpapertondhydraulic
leaks.
•Safelyrelieveallpressureinthehydraulic
systembeforeperforminganyworkonthe
hydraulicsystem.
CuttingUnitMaintenance
RemovingtheCuttingUnits
1.Parkthemachineonalevelsurface,engagethe
parkingbrake,lowerthecuttingunits,shutoff
theengine,andremovethekey.
2.Disconnectandremovethehydraulicmotor
fromthecuttingunit(Figure78).Coverthetop
ofthespindletopreventcontamination.
g011351
Figure78
1.Motor-mountingscrews
3.Removethelynchpin(forGroundsmaster4500
machines)orretainingnut(forGroundsmaster
4700machines)securingthecuttingunit-carrier
frametothelift-armpivotpin(Figure79).
g011352
Figure79
1.Lynchpin
2.Lift-armpivotpin
4.Rollthecuttingunitawayfromthemachine.
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