F.Performthefollowingsafetycheck:
i.Starttheenginefromtheoperator’s
position.
ii.Makesurethatthebladesdonot
engagewhenthePTOswitchisin
theOFFpositionandtheclutchis
disengaged.
Note:Iftheclutchdoesnot
disengage,installtheshim,andrefer
toTroubleshooting(page60).
iii.EngageanddisengagethePTO
switch10consecutivetimesto
ensurethattheclutchisfunctioning
properly.
Note:Iftheclutchdoesnotengage
properly,refertoTroubleshooting
(page60).
CheckingtheWheel-Lug
Nuts
ServiceInterval:Aftertherst100hours—Checkthe
wheel-lugnuts.
Checkandtorquethewheel-lugnutsto115to142
N∙m(85to105ft-lb).
CoolingSystem
Maintenance
CleaningtheAir-Intake
Screen
ServiceInterval:Beforeeachuseordaily
Beforeeachuse,removeanybuildupofgrass,dirt,
orotherdebrisfromthecylinderandcylinder-head
coolingns,air-intakescreenontheywheelend,
andthecarburetor-governorleversandlinkage.This
helpsensureadequatecoolingoftheengineandthe
correctenginespeed,anditreducesthepossibilityof
overheatingormechanicaldamagetotheengine.
CleaningtheCooling
System
ServiceInterval:Every100hours—Checkand
cleantheenginecoolingnsand
shrouds(moreoftenindirtyordusty
conditions).
1.Parkthemachineonalevelsurface,disengage
thePTO,andengagetheparkingbrake.
2.Shutofftheengine,removethekey,andwait
forallmovingpartstostopbeforeleavingthe
operatingposition.
3.Removetheair-intakescreenandfanhousing
(Figure67).
4.Cleanthedebrisandgrassfromtheengine
parts.
5.Installtheair-intakescreenandthefanhousing
(Figure67).
g031439
Figure67
1.Guardandengine
air-intakescreen
3.Engine-oilcooler
2.Fanhousing
45