Operator's Manual

ServicingtheEngineOil
Engine-OilSpecications
OilType:Detergentoil(APIserviceSF ,SG,SH,SJ,
orSL)
CrankcaseCapacity:
•Model74949,74950,75932,75936—2.3L(78
oz)withalterchange;2.1L(71oz)without
alterchange
•Model74952,78953—2.1L(71oz)withalter
change;1.8L(61oz)withoutalterchange
Viscosity:Seethetablebelow.
g037096
Figure52
Note:Although10W-40engineoilisrecommended
formostconditions,youmayneedtochangeoil
viscositytoaccommodateatmosphericconditions.
Using20W-50engineoilinhigherambient
temperaturescanreduceoilconsumption.
CheckingtheEngine-OilLevel
ServiceInterval:Beforeeachuseordaily
Note:Checktheoilwhentheengineiscold.
Important:Ifyouoverllorunderlltheengine
crankcasewithoilandruntheengine,youmay
damagetheengine.
1.Parkthemachineonalevelsurface,disengage
theblade-controlswitch(PTO),andengagethe
parkingbrake.
2.Shutofftheengine,removethekey,andwait
forallmovingpartstostopbeforeleavingthe
operatingposition.
Note:Ensurethattheengineiscoolsothatthe
oilhashadtimetodrainintothesump.
3.Tokeepdirt,grassclippings,etc.,outofthe
engine,cleantheareaaroundtheoil-llcapand
dipstickbeforeremovingit(Figure53).
g008804
g194611
Figure53
ChangingtheEngineOil
ServiceInterval:Every100hours(moreoftenindirty
ordustyconditions).
Note:Disposeoftheusedoilatarecyclingcenter.
1.Starttheengineandletitrunfor5minutes.
Note:Thiswarmstheoilsothatitdrainsbetter.
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