Toro Groundsmaster 4300-D - Page 210

DisassemblingtheLiftCylinder(continued)
3.Useaspannerwrench,rotatetheheadclockwiseuntiltheedgeofthe
retainingring(item7inFigure114)appearsinthebarrelopening.Inserta
screwdriverunderthebevelededgeoftheretainingringtostarttheretaining
ringthroughtheopening.Rotatetheheadcounterclockwisetoremovethe
retainingringfromthebarrelandhead.
4.Removetheplugsfromtheports.Carefullytwistandpulltheshaftand
removetheshaftwithheadandpiston.
IMPORTANT
Clampingthevisejawsagainsttheshaftsurfacecoulddamagethe
shaft.Whensecuringtheshaftinavise,clamptheshaftclevisonly.
5.Mounttheshaftinavisebyclampingontheclevisoftheshaft.Removethe
locknutandpistonfromtheshaft.Carefullyslidetheheadofftheshaft.
Note:Donotscratchordamagethecomponents.
6.Removeanddiscardalltheseals,back-uprings,andO-ringsfromthehead
andpiston.
InspectingtheLiftCylinder
CAUTION
Useeyeprotectionsuchasgoggleswhenusingcompressedair.
1.Washallthecylindercomponentsincleansolventanddrythemwith
compressedair.
2.Inspecttheinternalsurfaceofthebarrelfordeepscratches,out-of-roundness,
andbending.
3.Inspectthehead,shaft,andpistonforexcessivepitting,scoring,andwear.
4.Replacetheliftcylinderiftheinternalcomponentsarewornordamaged.
AssemblingtheLiftCylinder
1.Ensurethatallthepartsarecleanbeforeassembly.
2.PutacoatingofcleanhydraulicuidonnewO-rings,back-upwasher,and
otherseals.Carefullyinstallnewseals,back-uprings,andO-ringstothe
headandpiston.
IMPORTANT
Clampingthevisejawsagainsttheshaftsurfacecoulddamagethe
shaft.Whensecuringtheshaftinavise,clamptheshaftclevisonly.
3.Mounttheshaftinavisebyclampingontheclevisoftheshaft,anddothe
followingsteps:
A.Putacoatingofcleanhydraulicuidontheshaft.
B.Slidetheheadontotheshaft.
Note:Ensurethatyoudonotdamagetheseals.
HydraulicSystem:ServiceandRepairs
Page4–148
Groundsmaster
®
4300-D
16226SLRevC