Toro Groundsmaster 7210 - Page 170

DisassemblingtheGearPump(continued)
2.Useamarkertomakea"V"acrossthefrontplate,body,andbackplate
forassemblypurposes(Figure120).
IMPORTANT
Clampingthepumpbodyinavisecoulddamagethepump.When
youclampthepumpinavise,clampthemountingangeonly.
3.Clampthemountingangeofthepumpinavisewiththeshaftenddown.
4.Loosenthe4socket-headscrewsthatattachthebackplateandfrontplate
together.
5.Removethepumpfromthevise,andremovethe4socket-headscrews
and4lockwashers.
6.Removethefrontplatefromthebodyandthenremovethebackplate.
7.Locateandremovethe2dowelpinsfromthebody.
IMPORTANT
Marktherelativepositionsofthegearteethandbearingblocksso
thatyoucanassembletheminthesameposition.Donottouchthe
gearsurfacesasresidueonhandsmaybecorrosivetogearnish.
8.Placethepumponitssideandpushontherearbearingblocktoremovethe
bearingblocksandgearsetfromthepumpbody.
Note:Thepressuresealsandback-upringstinthegroovesmachinedinto
thebearingblocks.TheO-ringstinthegroovesmachinedinthepumpbody.
9.CarefullyremoveanddiscardtheO-rings,pressureseals,andback-uprings
fromthepumpbodyandbearingblocks.
Note:Donotdamagethemachinedgroovesduringtheremovalprocess.
10.Turnthefrontplateover,withsealsideup,andremovetheretainingring.
IMPORTANT
Ensurethatyoudonotdamagethecounterborewhenremovingthe
shaftsealfromthefrontplate.
11.Carefullyremovetheshaftsealfromthefrontplate.
12.Ifnecessary,removetheimplementreliefvalvefromthebackplate.
13.Removeanddiscardthesealingwashers.
HydraulicSystem:ServiceandRepairs
Page4–110
Groundsmaster7210
16222SLRevC