Toro Groundmaster Series - Page 162

RemovingtheGearPump(continued)
Acasedrainexistsinthetraction(piston)pumpandasuctionportisnear
theinputshaftofthegearpump.Whenthegearpumpisremovedfromthe
tractionpump,installplugsintothecasedrainandsuctionportstoprevent
thepumpsfromdraining.
g213694
Figure54
1.Tractionpump(P1)casedrain2.Gearpump(P2)suctionport
9.Ifnecessary,removethehydraulicttingsfromthepump.Recordthe
locationsandorientationsofthettingsforassemblypurposes.
10.RemoveanddiscardalltheO-ringsfromthehydraulichoses,tubes,and
ttingsthatweredisconnectedorremoved.
InstallingtheGearPump
RefertoFigure53forthisprocedure.
1.LubricatenewO-ringsandplacethemontothettings.Ifpreviouslyremoved,
installthettingsintothepumpports;refertoInstallingtheHydraulicFittings
(SAEStraightThreadO-RingFittings)(page5–9).
IMPORTANT
Acasedrainexistsinthepiston(traction)pumpandasuctionport
isneartheinputshaftofthegearpump(Figure54).Beforethegear
pumpisinstalled,ensurethatanyplugsplacedineitherofthese
portsareremoved.Failuretoremovetheplugswillcauseexcessive
pressureinthepistonpumpanddamagetheseals.Also,before
securingthegearpumptopistonpump,llthepistonpumphousing
withcleanhydraulicuidthroughcasedrainhole.
2.ApplycleanpetroleumjellyorlightgreasetoanewO-ring(item1Figure53)
andpositiontheO-ringontothegearpumpange.
3.Alignthegearpumpshaftandslidethegearpumpintothetractionpump
coupler.
4.Securethegearpumptothepistonpumpwiththepreviouslyremoved
fasteners.
5.Removethecapsandplugsfromthehydraulicttingsandhydrauliclines
theninstallthehydrauliclinestothepistonpumpandthegearpump;referto
InstallingHydraulicHosesandTubes(O-RingFaceSealFitting)(page5–7).
Tightenthegearpumpsuctionhoseclampto10N∙m(90in-lb).
6.Primethehydraulicpump;refertoPrimingtheHydraulicPumps(page5–60).
HydraulicSystem:ServiceandRepairs
Page5–76
Groundsmaster
®
3200,3300and3310
19240SLRevA