Toro 74490 - Page 24

GEARS
TheSystematicapproachtodening,diagnosingandsolvingproblems.
GatherInformation
•Informationreportedbythecustomer
•Informationobservedbyyou
G
•Establishthewhat,whereandwhenoftheissue
EvaluatePotentialCauses
•Considerpossiblecausesoftheproblemtodevelopahypothesis
E
•Narrowdownthefocusoftheproblem
AssessPerformance
•Ensureyouhaveallthenecessarytoolsfortesting
•T estallpotentialcausesofthefailure
A
•Reevaluateandcreatenewhypothesesifnecessary
Repair
R
•Returntheunittoservicebyrepairing,rebuildingorreplacing
SolutionConrmation
•Didtheissuegoaway
•Wastherootcauseoftheissuecorrectlyrepaired
S
•Arethereanyothernewsymptoms
Troubleshooting:GeneralTroubleshooting
Page3–2
2000SeriesZMASTER®ServiceManual
3438-778RevA