Toro Groundsmaster 4500-D Series - Fan Control Manifold Service

FanControlManifoldService
g308983
Figure141
1.Manifoldbody5.Flowdividercartridge(portFD)9.Proportionalreliefcartridge(port
TS)
2.Zeroleakplug(#6)(3used)6.Solenoidcoil(2used)
10.Nut
3.Zeroleakplug(#4)(2used)
7.Nut
4.Checkvalve(portCV)8.Solenoidvalve(portS1)
Note:Theportsonthefancontrolmanifoldaremarkedforeasyidenticationof
components(e.g.STisthesupplytothesteeringcontrolvalveandFDisthe
locationoftheowdividercartridgevalve).SeeAppendixA(pageA–1)toidentify
thefunctionofthehydrauliclinesandcartridgevalvesateachportlocation.
Forsolenoidandcontrolvalveserviceprocedures,seeDeckControlManifold
Service(GM4500-D)(page5–134).RefertoFigure141forcartridgevalveand
pluginstallationtorque.
Note:Thefancontrolmanifoldincludesseveralzeroleakplugs.Theseplugs
haveataperedsealingsurfaceontheplugheadthatisdesignedtoresist
vibrationinducedplugloosening.ThezeroleakplugsalsohaveanO-ringasa
secondaryseal.Ifzeroleakplugremovalisnecessary,lightlyraptheplughead
usingapunchandhammerbeforeusinganallenwrenchtoremovetheplug:
theimpactwillallowplugremovalwithlesschanceofdamagetothesocket
headoftheplug.
HydraulicSystem:ServiceandRepairs
Page5–154
Groundsmaster
®
4500-D/4700-D
19245SLRevA