Toro 08743 - Installing Hydraulic Hoses and Tubes (O-Ring Face Seal Fitting)

InstallingHydraulicHosesandTubes(O-RingFaceSealFitting)
g212099
Figure19
1.Tubeorhose
2.Swivelnut3.O-ring
4.Fittingbody
1.Ensurethatallthethreads,thesealingsurfacesofthehose/tube,andthe
ttingarefreeofburrs,nicks,scratches,orunwantedmaterial.
2.Tohelppreventahydraulicleak,replacethefacesealO-ringwhenyouopen
theconnection.EnsurethattheO-ringisinstalledandcorrectlyseatedinthe
grooveofthetting.LightlylubricatetheO-ringwithcleanhydraulicuid.
3.Alignthehose/tubeagainstthebodyofthettingsothattheatfaceofthe
hose/tubesleevefullytouchestheO-ringinthetting(Figure19).
4.Useyourhandtothreadtheswivelnutontothetting.Whileyouholdthe
hose/tubeinalignmentwithawrench,useatorquewrenchtotightenthe
swivelnuttotherecommendedtorquevaluewithinthespeciedrangeof
torquevalues;refertotheHose/TubeInstallationTorqueTable(page5–7).
Thisproceduretotightentheswivelnutrequiresadrive-adapterwrench
(e.g.,crowfootwrench).
Note:Itmaybenecessarytouseadrive-adapterwrench(e.g.,crowfoot
wrench)toinstallahydraulictting;refertoCalculatingtheT orqueValues
WhenUsingaDrive-AdapterWrench(page2–6).
g212098
Figure20
1.Marknutandttingbody
2.Initialposition3.Finalposition
Hose/TubeInstallationTorqueTable
FittingDashSize
Hose/TubeSideThreadSize
(inch)—threadsperinch)
InstallationTorque
4
9/16—1825to29N∙m(18to22ft-lb)
6
11/16—1637to44N∙m(27to33ft-lb)
8
13/16—1651to63N∙m(37to47ft-lb)
101—14
82to100N∙m(60to74ft-lb)
SandPro
®
3040and5040
Page5–7
HydraulicSystem:GeneralInformation
20251SLRevA