Service Manual

DisassemblingtheTransmission(continued)
g033433
Figure73
1.Forwardreliefcartridge
3.Hexheadgroove
2.Reversereliefcartridge
22.Removethe8socket-headscrewsthatattachthecentercasetothe
transmissionpumphousing.
23.Carefullyremovethecentercaseassemblyfromthetransmissionpump
housing.
24.Removethe2pinsfromthetransmissionpumphousingbores.
25.Removeanddiscardthegasket.
26.Removethebypassvalvesfromthecentercase.
27.RemoveanddiscardtheO-ringsandback-upringsfromthebypassvalves.
IMPORTANT
Theforwardandreversereliefcartridgesaredifferent.Forassembly
purposes,labelallthereliefcartridges.
28.Removetheforwardandreversereliefvalvecartridgesfromthecentercase
andnotethelocationofthereliefcartridgeforassemblypurposes.
Note:Youcanidentifythereversereliefvalvecartridgesbythegrooveinthe
hexhead(Figure73).
29.Removethevalveplatesfromthecentercase.Markthepositionsofthe
valveplatessothatyoucanassembletheminthesameposition.
g033434
Figure74
1.Hexplug(6each)3.Leftushingvalve
2.Rightushingvalve4.Centercase
30.Removethe6hexplugsfromthecentercase.
HydraulicSystem:ServiceandRepairs
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Groundsmaster7210
16222SLRevE