Toro Groundsmaster 7210 - Page 183

AssemblingthePolarTracHydraulicControlValve(continued)
4.Ifaspoolwasdisassembled,installthewasher(item14inFigure126),spool
spring,spacer,andretainingringtothespool.
5.Slidethebushings(item8inFigure126)andnewO-ringsoverthespools.
6.Lubricatethespoolswithathicklayerofcleanhydraulicuidandcarefully
installthespoolsintotheirproperbores.
7.Installthespoolcaps(item10inFigure126)intothevalvebody;torquethe
capsto27to33N∙m(20to25ft-lb).
8.Lubricatethedetentplunger(item2inFigure126)andplungerwithathick
layerofcleanhydraulicuidandinstalltheplungersintotheirproperbores.
9.InstallnewO-rings,seats(item5inFigure126),checkpoppet,andcheck
springintotheplungerbores.
10.InstalltheO-rings,back-upwashers,andseatretainingplugs(items7and
15inFigure126)intotheirplungerbores;torquetheplugsto41to47N∙m
(30to35ft-lb).
11.InstallnewO-ring,back-upwasher,andsolidplug(item6inFigure126)
intotheborewiththedetentplunger;torquetheplugto41to47N∙m(30
to35ft-lb).
12.Lubricatethedetentplunger(item22inFigure126),spring,anddiscwitha
thicklayerofcleanhydraulicuidandinstallthemintothevalvebodybore.
13.InstalltheO-ringanddetentplug(item19inFigure126)intothevalvebody;
torquetheplugto5.4to6.8N∙m(4to5ft-lb).
Groundsmaster7210
Page4–123
HydraulicSystem:ServiceandRepairs
16222SLRevC