Exmark Frontrunner 720,000 & Higher Serial Nos. - Check Safety Interlock System

Maintenance
Voltage
Reading
Percent
Charge
Maximum
Charger
Settings
Charging
Interval
12.6or
greater
100%
16volts/7
amps
No
Charging
Required
12.4–12.675–100%
16volts/7
amps
30Minutes
12.2–12.450–75%
16volts/7
amps
1Hour
12.0–12.225–50%
14.4volts/4
amps
2Hours
11.7–12.00–25%
14.4volts/4
amps
3Hours
11.7orless
0%
14.4volts/2
amps
6Hoursor
More
CheckSafetyInterlock
System
ServiceInterval:Beforeeachuseordaily
Note:Topreventenginecut-outsonroughterrain
theseatkillswitchhasa1/2seconddelay.
1.Checkstartingcircuit.Startershouldcrankwith,
parkingbrakeengaged,PTOdisengagedand
motioncontrolleversmovedoutintheneutral
lockposition.Theoperatordoesnotneedtobe
intheseattostarttheengine.
Trytostartwithoperatorinseat,parkingbrake
disengaged,PTOdisengagedandmotioncontrol
leversintheneutrallockposition-startermust
notcrank.
Trytostartwithoperatorinseat,parkingbrake
engaged,PTOengagedandmotioncontrol
leversintheneutrallockposition-startermust
notcrank.
Trytostartwithoperatorinseat,parking
brakeengaged,PTOdisengaged,andtheleft
motioncontrolleverin,startermustnotcrank,
repeatagainwiththerightleverin,thenwith
bothleversin-startermustnotcrank.
2.Checkthekillcircuits.Runengineatone-third
throttle,disengageparkingbrakeandraiseoff
ofseat(butdonotgetoffofmachine)engine
mustinitiateshutdownafterapproximately1/2
secondhaselapsed(seathastimedelaykillswitch
topreventcut-outsonroughterrain).
Runengineatone-thirdthrottle,engagePTO
andraiseoffofseat(butdonotgetoffof
machine)enginemustinitiateshutdownafter
1/2secondhaselapsed.
Runengineatone-thirdthrottle,withbrake
disengaged,moveleversinandraiseoffseat(but
donotgetoffofmachine)enginemustinitiate
shutdownafter1/2secondhaselapsed.
Again,runengineatone-thirdthrottle,brake
engaged,andmoveleftmotioncontrolleverin
-enginemustinitiateshutdown.
Repeatagainmovingtherightleverin,then
movingbothleversin-enginemustinitiate
shutdownwhetheroperatorisonseatornot.
3.CheckthePTOcircuit.SeetheFR524,FR604,
andFR724Operator’smanualtobecomefamiliar
withthedeckoperation.Openthefolding
decklatches,disengagetheparkbrake,move
themotioncontrolleversintoneutral,and
disengagethePTO.Lowerthedeckuntilthe
PTOswitcharmisnolongerdepressingthePTO
“kill”switch(seeFigure8).
Figure8
LeftSide—InsideofHitchShown
1.PTO“Kill”Switch
2.PTOSwitchArm
3.LowerdeckuntilarmDoesNotcontacttheswitch.
Runtheengineathalfthrottleandpulluponthe
PTOengagementswitch.
ThePTOmustnotengage.
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