Toro Groundsmaster 3280-D - Servicing the Steering Cylinder (4-Wheel Drive)

ServicingtheSteeringCylinder(4-WheelDrive)
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Figure101
1.Barrel5.Head
9.O-ring
2.Locknut6.Internalcollar10.Rodseal
3.Piston7.Dustseal
11.O-ring
4.Shaft
8.Back-upwasher12.U-ring
DisassemblingtheSteeringCylinder(4-WheelDrive)
1.Slowlypumpthecylindershafttoremovethehydraulicuidfromthesteering
cylinderintoadrainpan.Plugboththeportsandcleantheoutersurfaceof
thecylinder.
IMPORTANT
Whenyouclampthesteeringcylinderinavise,clampthepivotend
onlytopreventdamage.Donotclosetheviseonthebarrel.
2.Mountthesteeringcylindersecurelyinavisebyclampingonthepivotend
sothattheshaftendtiltsupslightly.Useaviseequippedwithsoftjaws.
3.Useaspannerwrenchtoloosenandremovetheinternalcollar(item6in
Figure101)fromthebarrel.
4.Holdtheendoftheshaftanduseatwistingandpullingmotiontocarefully
extracttheshaft,internalcollar,head,andpistonfromthebarrel.
IMPORTANT
Clampingthevisejawsagainsttheshaftsurfacecoulddamagethe
shaft.Whensecuringtheshaftinavise,protecttheshaftsurface.
Groundsmaster
®
3280-D/3320
Page5–125
HydraulicSystem:ServiceandRepairs
05138SLRevB