ChangingtheEngineOil
ServiceInterval:Aftertherst5hours—Changetheengine
oil.
Yearly—Changetheengineoil.
Ifpossible,runtheenginejustbeforechangingtheoilbecause
warmoilowsbetterandcarriesmorecontaminants.
UseautomotivedetergentoilwithanAPIserviceclassication
ofSF,SG,SH,SJ,SL,orhigher.Refertoyourengineowner's
manual.
UseFigure42belowtoselectthebestoilviscosityforthe
outdoortemperaturerangeexpected:
Figure42
EngineOilCapacities
Model
EngineOilCapacity
37772
37775
18to20oz.(0.53to0.59l)
1.Cleantheareaaroundtheoildraincap(Figure43).
Figure43
1.Oildraincap
2.Slideanoildrainpanunderthedrainextensionand
removetheoildraincap.
3.Draintheoil.
Note:Disposeoftheusedoilproperlyatalocal
recyclingcenter.
4.Installtheoildraincap.
5.Fillthecrankcasewithoil.RefertoFillingtheEngine
CrankcasewithOil.
LubricatingtheHexShaft
ServiceInterval:Yearly—Lubricatethehexshaft.
Lightlylubricatethehexshaftyearlywithautomotiveengine
oil(Figure44).
Figure44
1.Hexshaft
3.Rubberwheel
2.Steelfrictionpulley
Important:Donotgetoilontherubberwheelorthe
steelfrictionpulleybecausethetractiondrivewillslip
(Figure44).
1.Drainthegasolinefromthefueltank.
2.Tipthemachineforwardontoitsaugerhousingand
blockitsothatitcannotfall.
3.Removethebackcover(Figure45).
Figure45
1.Screws
4.MovethespeedselectorlevertoPositionR2.
5.Dipyourngerinautomotiveengineoilandlightly
lubricatehexshaft.
6.MovethespeedselectorlevertoPosition6.
7.Lubricatetheotherendofthehexshaft.
8.Movethespeedselectorleverforwardandrearward
afewtimes.
22