Toro 08743 - Installing the Hydraulic Fittings (SAE Straight Thread O-Ring Fittings)

InstallingtheHydraulicFittings(SAEStraightThreadO-Ring
Fittings)
InstallingaNon-AdjustableFitting
g212226
Figure21
1.Fitting
2.O-ring
1.Ensurethatallthethreads,thesealingsurfacesoftting,andthecomponent
portarefreeofburrs,nicks,scratches,orunwantedmaterial.
2.Tohelppreventahydraulicleak,replacetheO-ringwhenyouopenthe
connection.
3.LightlylubricatetheO-ringwithcleanhydraulicuid.Ensurethatthethreads
ofthettingarecleanwithnolubricantapplied.
IMPORTANT
Beforetighteningthetting,determinethematerialusedfortheport
thettingisbeinginstalledin.Installingattingintoanaluminum
portrequiresreducingtheinstallationtorque.
4.Installthettingintotheport,thenuseatorquewrenchandsockettotighten
thettingtotherecommendedtorquevaluewithinthespeciedrangeof
torquevalues;refertotheFittingInstallationT orqueTable(page5–11).
Note:Itmaybenecessarytouseadrive-adapterwrench(e.g.,crowfoot
wrench)toinstallahydraulictting;refertoCalculatingtheT orqueValues
WhenUsingaDrive-AdapterWrench(page2–6).
5.Ifatorquewrenchisnotavailableorifspaceattheportpreventstheuseof
atorquewrench,usetheFlatsFromFingerTight(FFFT)proceduregiven
below:
A.Installthettingintotheportandtightenthettingdownfulllengthuntil
nger-tight.
B.Iftheportmaterialissteel,tightenthettingtothelistedvalue;referto
theFlatsFromFingerTight(FFFT)T able(page5–11).
C.Iftheportmaterialisaluminum,tightenthettingto60%ofthelisted
value;refertotheFlatsFromFingerTight(FFFT)T able(page5–11).
SandPro
®
3040and5040
Page5–9
HydraulicSystem:GeneralInformation
20251SLRevA