Toro 08743 - Servicing the Optional Hydraulic Switch Kit Manifold

ServicingtheOptionalHydraulicSwitchKitManifold
g352574
Figure76
1.Manifoldblock4.Coilnut(2each)7.#4zero-leakplugwithO-ring(5
each)
2.Solenoidvalve–S35.Coilnut8.Solenoidvalve–S2
3.Solenoidcoil(3each)6.Solenoidvalve–S19.Reliefvalve–RV
Theportsonthemanifoldaremarkedforeasyidenticationofcomponentsand
connections.Example:Pisthepressureconnectionportfromtheswitchkit
hydraulicpump,andS1(SV1)isthelocationforthetank(return)solenoidvalve;
refertothehydraulicschematicinAppendixA(pageA–1)toidentifythefunction
ofthehydrauliclinesandcartridgevalvesateachport.
Forcartridgevalveserviceprocedures,refertoServicingaHydraulicCartridge
Valve(page5–87).
Thehydraulicmanifoldincludeseveralzero−leakplugs.Theseplugshavea
taperedsealingsurfaceontheplugheadthatisdesignedtoresistvibration
inducedplugloosening.Thezero−leakplugsalsohaveanO−ringasa
secondaryseal.Ifremovingazero−leakplugisnecessary,lightlyraptheplug
headusingapunchandhammerbeforeusingahexwrenchtoremovetheplug:
theimpactwillallowplugremovalwithlesschanceofdamagetothesockethead
oftheplug.Tightentheplugstothetorquevalueprovided.
Ifthehydraulicttingsaretoberemovedfromthemanifold:
1.Markthettingorientationforassemblypurposes.
2.RemovethettingsfromthemanifoldanddiscardtheO-rings.
3.LubricateandinstallnewO-ringstothettings.
4.Alignandinstallthettingsintothemanifoldandtightenthettingstothe
speciedtorque;refertoInstallingtheHydraulicFittings(SAEStraight
ThreadO-RingFittings)(page5–9).
SandPro
®
3040and5040
Page5–119
HydraulicSystem:ServiceandRepairs
20251SLRevA