Toro Groundsmaster 4500-D Series - Page 242

Removal(Figure130)(continued)
9.Putcapsorplugsondisconnectedlinesandttingstopreventcontamination.
10.Loosenandremovefour(4)socketheadscrewsandangenutsthatsecure
steeringcolumntomachine.
11.Removesteeringcolumnassemblywithsteeringcontrolvalveattachedfrom
machine.
12.Loosenandremovefour(4)socketheadscrewsthatsecuresteeringcontrol
valvetosteeringcolumn.Whenremovingscrews,tiltsteeringcolumnfor
easierscrewaccess.
13.Removesteeringcontrolvalvefromsteeringcolumn.
14.Ifnecessary,removettingsandO-ringsfromsteeringcontrolvalve.Discard
allremovedO-rings.
Installation(Figure130)
1.Ifttingswereremoved,lubricatenewO-ringswithcleanhydraulicoiland
installttingstosteeringcontrolvalve(seeInstallingtheHydraulicFittings
(SAEStraightThreadO-RingFittings)(page5–9)).
2.Applyantiseizelubricanttosplinesofsteeringcontrolvalveshaft.
3.Slidesteeringcontrolvalveshaftintosteeringcolumnuniversaljoint.Position
controlvalvewithportstowardfrontofmachine.Securesteeringcontrol
valvetosteeringcolumnwithfour(4)socketheadscrews.Torquescrewsin
acriss-crosspatternfrom9.5to13.5N·m(7to10ft-lb).
4.Positionsteeringcolumnassemblytomachine.Securesteeringcolumnin
placewithfour(4)socketheadscrewsandangenuts.
5.Removecapsandplugsfromdisconnectedlinesandttings.
6.LubricatenewO-ringsandconnecthydrauliclinestottingsonsteering
controlvalve(seeInstallingHydraulicHosesandTubes(O-RingFaceSeal)
(page5–7)).
7.Positionsteeringcolumnbrace(item12)tomachineandsecurewithfour(4)
angeheadscrews.
8.Sliderubberbellowstobottomofsteeringcolumn.
9.Positionplatformshroudinplaceandsecurewithremovedfasteners(Figure
131).
10.Checkoillevelinhydraulicreservoirandaddcorrectoilifnecessary.
11.FollowHydraulicSystemStart-upprocedures(seePrimingHydraulicPumps
(page5–90)).
HydraulicSystem:ServiceandRepairs
Page5–140
Groundsmaster
®
4500-D/4700-D
19245SLRevA