Toro Groundsmaster 360 - Page 200

InspectingtheGearPump(continued)
g033481
Figure140
1.Gearshaftspline3.Gearteeth
2.Gearshaft4.Gearfaceedge
C.Gearfaceedgemustbefreefromsharpness.Thesharpedgesofgears
willmillintothebearingblocks.Replacethegearpumpifyoundany
sharpgearfaceedge.
D.Bearingareasofthebearingblocksmustnothaveexcessivewearor
scoring.
E.Faceofthebearingblocksthatareincontactwiththegearsmustbe
freeofwear,roughness,orscoring.
3.Inspectthefrontplateandbackplatefordamageorwear.Iftheplatesare
damagedorworn,replacethepump.
AssemblingtheGearPump
Note:Whenassemblingthepump,checktheV-shapedmarkerlinemadeduring
disassemblytoensurethatthecomponentsareproperlyaligned.
1.LubricatenewO-rings,pressureseals,andback-upsealswithathincoat
ofpetroleumjelly,andlubricateallinternalpumppartsfreelywithclean
hydraulicuid.
2.Installnewshaftsealinthefrontplate.Notetheorientationofseallipsduring
installation(Figure139).
Note:Thesealshouldbepressedintoplaceuntilitreachesthebottom
ofthebore.
3.Installtheretainingringintothegrooveofthefrontplate.
4.InstallthelubricatedO-ringsintothebody.
5.Installthelubricatedpressuresealsintothemachinedgroovesofthebearing
blocksandcarefullyplacetheback-upsealsintothegrooves.
6.Lubricatethegearfacesandbearingsurfacesofthedrivegear,idlergear,
andbearingblockswithcleanhydraulicuid.
7.Usetheidenticationmarksthatyoumadeduringdisassemblyandcarefully
assemblethebearingblocksandgears.
8.Positionthepumpbodyonitsside.
9.Usetheidenticationmarksthatyoumadeduringdisassemblyandcarefully
slidethebearingblockandgearassemblyintothebodycavity.
HydraulicSystem:ServiceandRepairs
Page4–142
Groundsmaster360
16225SLRevC