Toro Groundsmaster 7210 - Installing the Hydraulic Hose and Tube (O-Ring Face Seal Fitting)

InstallingtheHydraulicHoseandTube(O-RingFaceSealFitting)
1.Ensurethatallthethreads,thesealingsurfacesofthehose/tube,andthe
ttingarefreeofburrs,nicks,scratches,orunwantedmaterial.
g212099
Figure21
1.Tubeorhose
3.O-ring
2.Swivelnut
4.Fittingbody
g212098
Figure22
2.Tohelppreventahydraulicleak,replacethefacesealO-ringwhenyouopen
theconnection.EnsurethattheO-ringisinstalledandcorrectlyseatedinthe
grooveofthetting.LightlylubricatetheO-ringwithcleanhydraulicuid.
3.Alignthehose/tubeagainstthebodyofthettingsothattheatfaceofthe
hose/tubesleevefullytouchestheO-ringinthetting(Figure21).
4.Useyourhandtothreadtheswivelnutontothetting.Whileyouholdthe
hose/tubeinalignmentwithawrench,useatorquewrenchtotightenthe
swivelnuttotherecommendedtorquevaluewithinthespeciedrangeof
torquevalues;refertotheHose/TubeInstallationTorqueT able(page4–6).
Thisproceduretotightentheswivelnutrequiresadrive-adapterwrench
(e.g.,crowfootwrench).
Note:Itmaybenecessarytouseadrive-adapterwrench(e.g.,crowfoot
wrench)toinstallahydraulictting;refertoCalculatingtheT orqueValues
WhenUsingaDrive-AdapterWrench(page2–5).
5.Ifatorquewrenchisnotavailableorifspaceattheswivelnutpreventsthe
useofatorquewrench,usethealternativeprocedureFlatsFromWrench
Resistance(FFWR)givenbelow(Figure22).
A.Useawrenchtotightentheswivelnutontothettinguntilyoufeellight
resistancewiththewrench-approximately3.39N∙m(30in-lb).
B.Putamarkontheswivelnutandbodyofthetting.Holdthehose/tubein
alignmentwithawrenchtopreventthehose/tubefromturning.
Groundsmaster7210
Page4–5
HydraulicSystem:GeneralInformation
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