Toro 74991 Z Master Professional 5000 Series - Brake Maintenance

BrakeMaintenance
AdjustingtheParkingBrake
ServiceInterval:Aftertherst100hours
Every500hoursthereafter
1.Drivethemachineontoalevelsurface.
2.Disengagetheblade-controlswitch(PTO),movethe
motion-controlleverstotheNEUTRAL-LOCKposition,
andengagetheparkingbrake.
3.Shutofftheengine,waitforallmovingpartstostop,
andremovethekey.
4.Raisethebackofthemachineandsupportthemachine
withjackstands.
DANGER
Mechanicalorhydraulicjacksmayfailto
supportmachineandcauseaseriousinjury.
•Useajackstandwhensupportingthe
machine.
•Donotusehydraulicjacks.
5.Removethereartiresfromthemachine.
6.Removeanydebrisfromthebrakearea.
7.Rotatethedrive-wheelreleasehandletothereleased
position.RefertoUsingtheDrive-WheelRelease
Valves(page29).
8.CheckifthereisavisiblegapbetweentheL-bracket
andthelinkagestop(Figure80).
Figure80
LeftSideShown
1.L-bracket4.Rear-linkageassembly
2.Linkagestop
5.Caliper
3.Gap
6.Wheelhub
9.Disengagetheparkingbrake.
10.Turnthewheelhubbyhandinbothdirectionsrelative
tothecaliper.
Note:Thewheelhubshouldmovefreelybetween
thecaliper.
11.Ifagapisneededorthewheelhubdoesnotmove
freely:
A.Disengagetheparkingbrake.
B.Disconnectandne-tunetherearlinkage
assembly:
•Shortenthelinktocreateagap.
•Lengthenthelinktoallowwheelhub
movement.
C.Connecttherear-linkageassembly.
12.Engagetheparkingbrakeandcheckthegap.
13.Repeatsteps9through13untilyouachieveavisible
gapandthewheelhubrotatesfreely.
14.Repeatthisprocedureforthebrakeontheopposite
side.
15.Rotatethedrive-wheelreleasehandletotheoperating
position;refertoUsingtheDrive-WheelReleaseValves
(page29).
16.Installthereartiresandtorquethelugnuts;referto
CheckingtheWheelLugNuts(page48).
17.Removethejackstands.
53