Operator's Manual
TheSafety-Interlock
System
CAUTION
Ifthesafety-interlockswitchesare
disconnectedordamaged,themachinecould
operateunexpectedly,causingpersonal
injury.
•Donottamperwiththeinterlockswitches.
•Checktheoperationoftheinterlock
switchesdailyandreplaceanydamaged
switchesbeforeoperatingthemachine.
Understandingthe
Safety-InterlockSystem
Thesafety-interlocksystemisdesignedtoprevent
themowerbladesfromrotatingunlessyoudo1of
thefollowing:
•Moveeithermotion-controllevertothecenter,
unlockedposition.
•Pulltheblade-controlswitch(PTO)totheON
position.
Thesafety-interlocksystemisdesignedtostop
themowerbladesifyoumoveorreleaseboth
motion-controlleversintotheNEUTRAL-LOCK
position.
Thehourmeterhassymbolstonotifytheuser
wheneachinterlockcomponentisinthecorrect
position.Whenthecomponentisinthecorrect
position,atrianglelightsupinthecorresponding
square(Figure18).
g031282
Figure18
1.Triangleslightupwhentheinterlockcomponentsareinthe
correctposition.
TestingtheSafety-Interlock
System
ServiceInterval:Beforeeachuseordaily
Testthesafety-interlocksystembeforeyouusethe
machineeachtime.
Note:Ifthesafetysystemdoesnotoperateas
describedbelow,haveanAuthorizedServiceDealer
repairthesafetysystemimmediately.
1.Starttheengine;refertoStartingtheEngine
(page19).
2.Movethemotion-controlleverstothecenter,
unlockedposition.
Note:Thebladesshouldnotrotateandthe
engineshouldstoprunning.
3.Starttheengineandreleasetheparkingbrake.
4.Moveeithermotion-controllevertothecenter,
unlockedposition.
5.Continueholdingthemotion-controlleverin
thecenter,unlockedposition,pulluponthe
blade-controlswitch(PTO),andreleasethe
switch.
Note:Theclutchshouldengageandthemower
bladesrotate.
6.Moveorreleasethemotion-controlleversinto
theNEUTRAL-LOCKposition.
Note:Thebladesshouldstoprotatingandthe
engineshouldcontinuetorun.
7.Pushtheblade-controlswitchdownand
moveeithermotion-controllevertothecenter,
unlockedposition.
8.Continueholdingthemotion-controlleverin
thecenter,unlockedposition,pulluponthe
blade-controlswitch(PTO),andreleasethe
switch.
Note:Theclutchshouldengageandthemower
bladesshouldrotate.
9.Pushtheblade-controlswitch(PTO)downto
theOFFposition.
Note:Thebladesshouldstoprotating.
10.Withtheenginerunning,pulluptheblade-control
switch(PTO)andreleaseitwithoutholding
eithermotion-controllevertothecenter,
unlockedposition.
Note:Thebladesshouldnotrotate.
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