Toro Groundsmaster 5900 Series - Brake Release Manifold

BrakeReleaseManifold
1
2
3
4
5
5
6
7
8
9
10
g288018
Figure101
1.Brakereleasemanifold5.Washer(4)
9.Hydraulictube−tobrake
2.Flatwasher(2)6.Grommet(2)10.Flangenut(2)
3.Capscrew(2)7.Spacer(2)
4.Hydraulictube−frommanifold8.Bulkheadnut(2)
Bothfrontwheelmotorsincludeamulti−discparkingbrakethatengageswhen
hydraulicpressureisnotpresent(e.g.engineisrunningandparkingbrake
switchissettoONorengineisnotrunning).Thebrakereleasemanifoldincludes
amanualreleasevalve(MV),ahandpump(HP)andareliefvalve(RV).When
theengineisrunningthemanualreleasevalve(MV)opens,pressurizingthe
brakecircuitandreleasingthebrakes.Whentheengineisnotrunning,closing
themanualreleasevalve(MV)andpumpingthehandpump(HP)pressurizes
thebrakecircuitandreleasesthebrakesforservice.Thereliefvalve(RV)keeps
brakecircuitpressurebelow27.6bar(400psi)whenusingthehandpump.
BrakeReleaseManifoldRemoval(Figure101)
1.ReadtheGeneralPrecautionsforRemovingandInstallingHydraulicSystem
Components(page5–73).
2.Topreventcontaminationofhydraulicsystemduringmanifoldremoval,
thoroughlycleanexteriorofmanifoldandttings.
3.Disconnectallhydrauliclinesfrommanifoldandputcapsorplugson
openhydrauliclinesandttingstopreventsystemcontamination.Label
disconnectedhydrauliclinesforproperassembly.
4.Removehydraulicmanifoldfromtheframe.
5.Ifhydraulicttingsaretoberemovedfrommanifold,markttingorientationto
allowcorrectassembly.RemovettingsfrommanifoldanddiscardO−rings.
HydraulicSystem:ServiceandRepairs
Page5–114
Groundsmaster
®
5900&5910
16227SLRevB