Service Manual

InstallingtheHydraulicHoseandTube(O-RingFaceSealFitting)
(continued)
2.Tohelppreventahydraulicleak,replacethefacesealO-ringwhenyouopen
theconnection.
Note:EnsurethattheO-ringisinstalledandcorrectlyseatedinthegrooveof
thetting.LightlylubricatetheO-ringwithonlycleanhydraulicuid.
3.Alignthehose/tubeagainstthebodyofthettingsothattheatfaceofthe
hose/tubesleevefullytouchestheO-ringinthetting;refertoFigure48.
4.Useyourhandtothreadtheswivelnutontothetting.Whileyouholdthe
hose/tubeinalignmentwithawrench,useatorquewrenchtotightenthe
swivelnuttotherecommendedtorquevaluewithinthespeciedrangeof
torquevalues;refertoHose/TubeInstallationT orqueTable(page4–11).
Note:Thisproceduretotightentheswivelnutrequiresadrive-adapter
wrench(e.g.,crowfootwrench).
Note:Usingadrive-adapterwrenchinanypositionotherthan90ºand270º
totheframeofthetorquewrenchwillaffectthetorquevaluemeasuredbythe
torquewrenchbecauseoftheeffectivelength(lever)ofthetorquewrench
changes.Usingatorquewrenchwithadrive-adapterwrenchlowersthe
torquevaluethanthatoftheinstallationtorquelistedinthetable.Calculate
thecompensatedtorquevalueusingtheformulasdescribedinCalculating
theT orqueValuesWhenUsingaDrive-AdapterWrench(page2–5).Also
refertotheHose/TubeInstallationT orqueT able(page4–11)thatfollows.
5.Ifatorquewrenchisnotavailableorifspaceattheswivelnutpreventsthe
useofatorquewrench,usethealternativeprocedureFlatsFromWrench
Resistance(FFWR)givenbelow;refertoFigure49.
A.Useawrenchtotightentheswivelnutontothettinguntilyoufeellight
resistancewiththewrench—approximately3.39N∙m(30in-lb).
B.Putamarkontheswivelnutandbodyofthetting.Holdthehose/tube
withawrenchtopreventthehose/tubefromturning.
C.UseasecondwrenchtotightenthenuttothecorrectFlatsFromWrench
Resistance(FFWR);refertoFlatsFromWrenchResistanceTable(page
4–12).
Note:Themarkingsonthenutandbodyofthettingshowthatthe
connectioniscorrectlytightened.
Hose/TubeInstallationTorqueTable
FittingDashSizeHose/TubeSideThreadSize
(inch(es)—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)
12
1–3/16—12116to142N∙m(85to105ft-lb)
16
1–7/16—12150to184N∙m(110to136ft-lb)
20
1–11/16—12190to233N∙m(140to172ft-lb)
Groundsmaster5900TractionUnit
Page4–11
HydraulicSystem:GeneralInformation
08159SLRevC