Toro 74922 - Brake Maintenance; Adjusting the Parking Brake

BrakeMaintenance
AdjustingtheParkingBrake
ServiceInterval:Aftertherst100hours
Every500hoursthereafter
Checktomakesurethebrakeisadjustedproperlybefore
adjusting.
Note:Thisproceduremustbefollowedaftertherst100
hoursorwhenabrakecomponenthasbeenremovedor
replaced.
1.Drivethemachineontoalevelsurface.
2.Disengagetheblade-controlswitch(PTO),movethe
motioncontrolleverstotheneutral-lockedposition
andengagetheparkingbrake.
3.Stoptheengine,waitforallmovingpartstostop,and
removethekey.
4.Raisethebackofthemachineupandsupportthe
machinewithjackstands.
DANGER
Mechanicalorhydraulicjacksmayfailto
supportmachineandcauseaseriousinjury.
•Usejackstandwhensupportingmachine.
•Donotusehydraulicjacks.
5.Removethereartiresfromthemachine.
6.Removeanydebrisfromthebrakearea.
7.Rotatethedrivewheelreleasehandletothereleased
position.RefertoUsingtheDrive-Wheel-Release
Valves(page28).
8.Checktoseeifthereisavisiblegapbetweenthe
L-bracketandthelinkagestop(Figure75).
Figure75
LeftSideShown
1.L-bracket4.Rearlinkageassembly
2.Linkagestop
5.Caliper
3.Gap
6.Wheelhub
9.Disengagetheparkingbrake,thelevershouldbein
thedownposition.
10.Turnthewheelhubbyhandinbothdirectionsrelative
tothecaliper;thewheelhubshouldmovefreely
betweenthecaliper.
11.Ifagapisneededorthewheelhubdoesnotmove
freely:
A.Disengagetheparkingbrake.
B.Disconnectandne-tunetherearlinkage
assembly:
•Shortenthelinktocreateagap.
•Lengthenthelinktoallowwheelhub
movement.
C.Reconnecttherearlinkageassembly.
12.Engagetheparkingbrakeandcheckthegap.
13.Repeatsteps9through13untilavisiblegapisachieved
andthewheelhubrotatesfreely.
14.Repeatthisprocedureforthebrakeontheopposite
side.
15.Rotatethedrivewheelreleasehandletotheoperating
position.RefertoUsingtheDrive-Wheel-Release
Valves(page28).
16.Installthereartiresandtorquethelugnuts.Referto
CheckingtheWheelLugNuts(page46).
17.Removethejackstands.
50