LiftControlManifoldService(GM4700-D)
g308993
Figure146
1.Manifoldbody5.Proportionalreliefvalve(portTS)9.Solenoidvalve(portS5)
2.Nut
6.Solenoidvalve(portsS2,S3,S7,
S8)
10.Solenoidcoil(5used)
3.Zeroleakplug(#4)7.Solenoidvalve(portS1)11.Solenoidcoil(5used)
4.Reliefvalve(portR1)8.Solenoidvalve(portsS4,S6,S9)
12.Nut
Note:Theportsontheliftcontrolmanifoldaremarkedforeasyidenticationof
components(e.g.PisthegearpumpconnectionportandR1isthereliefvalve
port).SeeAppendixA(pageA–1)toidentifythefunctionofthehydrauliclines
andcartridgevalvesateachportlocation.
Note:Theliftcontrolmanifoldusesseveralzeroleakplugs.Theseplugshave
ataperedsealingsurfaceontheplugheadthatisdesignedtoresistvibration
inducedplugloosening.ThezeroleakplugsalsohaveanO-ringasasecondary
seal.Ifzeroleakplugremovalisnecessary,lightlyraptheplugheadusinga
punchandhammerbeforeusinganallenwrenchtoremovetheplug:theimpact
willallowplugremovalwithlesschanceofdamagetothesocketheadoftheplug.
HydraulicSystem:ServiceandRepairs
Page5–160
Groundsmaster
®
4500-D/4700-D
19245SLRevA