Toro Groundsmaster 7210 - Page 177

ServicingtheLiftControlManifold(continued)
CAUTION
Useeyeprotectionsuchasgoggleswhenusingcompressedair.
CAUTION
Suddenmovementoftheinternalspoolscanreleasethestored
uidsuddenly.
7.Useclean-mineralspiritstocleanthecartridgevalve.Putthevalvein
clean-mineralspiritstoushoutcontamination.
IMPORTANT
Particlesasneastalcumpowdercanaffecttheoperationof
high-pressurehydraulicvalves.
Ifthecartridgedesignallows,useawoodorplasticprobeto
presstheinternalspoolinandoutfor20to30timestoushout
contamination.
Ensurethatyoudonotdamagethecartridge.Usecompressedair
forcleaning.
8.Installthecartridgevalveintothemanifoldasfollows:
A.Lubricatethenewsealkitcomponentswithcleanhydraulicuidand
installthecomponentsontothevalve.
B.InstalltheO-rings,sealingrings,andback-upringscorrectlyonthe
cartridgevalveforproperoperationandsealing.
C.Puttheassembledcartridgeintothecleanhydraulicuid.
IMPORTANT
Carefullyhandlethecartridgevalve.Slightbendingordistortion
ofthestemtubecancausebindingandmalfunction.When
installingthecartridgevalveintothemanifold,ensurethatthe
deepwellsocketfullyengagesthevalvebase.
D.Turnthecartridgevalvecarefullyintothemanifoldportuntilitreach
thetopoftheO-ring.Thevalveshouldgointothemanifoldporteasily
withoutbinding.
E.Useadeepsocketwrenchandtorquethecartridgevalveasshownin
Figure123.
9.Carefullyinstallthesolenoidcoilintothecartridgevalveandsecurethecoil
tothevalvewiththenut;torquethenutto6.7N∙m(60in-lb).
10.Iftheproblemsstillexistaftermanifoldassembly,removethecartridgevalve
andcleanthevalveagainorreplacethecartridgevalve.
Groundsmaster7210
Page4–117
HydraulicSystem:ServiceandRepairs
16222SLRevC