Toro 22470 - Troubleshooting

Troubleshooting
Problem
PossibleCauseCorrectiveAction
1.Ahydrauliccouplerisnotcompletely
connected.
1.Checkandtightenallcouplers.
2.Ahydrauliccouplerisdamaged.
2.Check/replacecouplers
3.Thereisanobstructioninahydraulic
hose
3.Findandremovetheobstruction.
4.Anauxiliaryvalveonthetractionunit
isnotopening.
4.Repairthevalve.
5.Theboomendbearingfailed.
5.Replacethebearing.
6.Thediggingchainistootight.6.Adjustthediggingchain.
7.Thereissandbuildupintoothrootof
thedrivesprocket.
7.Raisethetrencherandrunthechain
backwards,thenreducethechain
tension.
Thechaindoesnotturn.
8.Hydraulicmotororchaindrivefailure8.ContactyourAuthorizedService
Dealer.
1.Wornteeth1.Replaceanywornteeth.
2.Wrongsettingonowdividerand
speedlever(applicablewheeledunits
only)
2.Settheowdividertothe10:00
positionandthespeedlevertothe
turtleposition.
3.Thereisarestrictioninaquickcoupler
orhose.
3.Checkthehosesandcouplersand
repairanyproblemsfound.
4.Thehydraulicsystemistoohot.
4.Shutdownandallowthesystemtocool.
Thetrencherdoesnotdigfastenough.
5.Thereliefvalveissetbelow
specications.
5.ContactyourAuthorizedService
Dealer.
1.Theauxiliaryvalveleverisinthewrong
position.
1.Movetheauxiliaryvalvelevertothe
rearwardposition.
Thechainturnsinthewrongdirection
2.Thehydraulichosesarereversed.2.Disconnecthosesandswitchpositions.
1.Thellplugisleaking.1.Lookformoisturearoundthellplug.
Ifpresent,changetheoil,andreplace
theplugandtheplugo-ring.
2.O-ringfailureonthemotor.2.ContactyourAuthorizedService
Dealer.
Thebearingcaselubeiscontaminated.
3.Sealfailure.3.ContactyourAuthorizedService
Dealer.
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