Toro 74480 - Brake Maintenance; Adjusting the Parking Brake

BrakeMaintenance
AdjustingtheParking
Brake
ServiceInterval:Every500hours
Note:Performthisprocedurewheneveryouremove
orreplaceabrakecomponent.
1.Parkthemachineonalevelsurface,disengage
theblade-controlswitch(PTO),andengagethe
parkingbrake.
2.Shutofftheengine,removethekey,andwait
forallmovingpartstostopbeforeleavingthe
operatingposition.
3.Setupthemachinetobepushedbyhand.
RefertoUsingtheDrive-WheelReleaseValves
(page33).
4.Raisethebackofthemachineupandsupport
themachinewithjackstands.
WARNING
Relyingsolelyonmechanicalor
hydraulicjackstosupportaraised
machineforserviceormaintenance
couldbedangerousbecausethejacks
maynotprovideenoughsupportormay
malfunction,allowingthemachinetofall
andpossiblycauseseriousinjury.
Donotrelysolelyonmechanical
orhydraulicjacksforsupport.Use
adequatejackstandsorequivalent
support.
5.Engageanddisengagetheparkingbrakeand
checkeachdrivetiretoensurethateachbrake
engagesanddisengages.
6.Ifanadjustmentisnecessary,disengagethe
parkingbrake.Removethecotterpinfromthe
brakelinkageshaft(Figure57).
g036752
Figure57
1.Cotterpin3.Brakelinkageshaft
2.Parkingbrake
7.CheckbothspringlengthsasshowninFigure
58.Ifanadjustmentisnecessary,turnthe
topnutclockwisetoshortenthespringand
counterclockwisetolengthenit.
g036100
Figure58
1.Topnut
3.44mm(1-3/4inches)
2.Spring
8.Pushtheparkingbrakeleverallthewayforward
anddown.
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