Toro 31230N - Controls System Maintenance; Adjusting the Traction Drive for Neutral; Adjusting the Maximum Ground Speed

ControlsSystem
Maintenance
AdjustingtheTractionDrive
forNeutral
Note:Ifthemachinehasrecentlyhadthehydraulicoil
changedorthetractionmotorsorhosesreplaced,anyair
trappedinthesystemwillhavetobeworkedoutpriorto
performingthisprocedure.Thiscanbeaccomplishedby
operatingthemachineinforwardandreverseforafew
minutesandthenreplenishingtheoilasrequired.
Whenpositionedonalevelsurface,themachinemustnot
creepwhenthetractionpedalisreleased.Ifitdoescreep,
adjustasfollows:
1.Parkthemachineonalevelsurface,stoptheengine,
andlowerthecuttingunittotheoor.
2.Jackuptherearofthemachineuntilthereartiresare
offtheshopoor.Supportthemachinewithjack
standstopreventitfromfallingaccidentally.
Note:On4wheeldrivemodels,thefronttiresmust
alsobeofftheshopoorandsupportedbyjackstands.
WARNING
Theenginemustberunningsothis
adjustmentcanbeperformed.Thiscould
causepersonalinjury.
Keephands,feet,face,andotherbodyparts
awayfromanyhotpartsoftheengineandany
rotatingparts.
3.Starttheengine,setthethrottletotheSlowposition
andobservewhichdirectionthereartiresrotate.
•Iftheleftreartireisrotating,loosenthejamnuts
ontheleftsidetransmissioncontrolrod(Figure
39).
Note:Theforwardendofthecontrolrodhasa
lefthandthread.Therearendoftherod,which
isconnectedtothetransmission,hasarighthand
thread.
Figure39
1.Transmissioncontrolrods
•Iftheleftreartireisrotatinginreverse,lengthen
therodbyslowlyturningtherodcounter-clockwise
(asviewedfromthefront)untiltheleftreartire
stopsrotatingorminimalrotationisdetectedin
reverse
•Iftheleftreartireisrotatingforward,shortenthe
rodbyslowlyturningtherodclockwise(asviewed
fromthefront)untiltheleftreartirestopsrotating.
4.MovethethrottletotheFastposition.Makesurethe
wheelremainsstoppedorminimalcreepisdetectedin
reverse.Adjustasrequired.
5.Tightenthejamnuts.
6.Repeattheprocedurefortherightreartire,ifrequired,
byusingtherightsidetransmissioncontrolrod.
7.Stoptheengine.Removethejackstandsandlowerthe
machinetotheshopoor.
8.Testdrivethemachinetomakesureitdoesnotcreep.
AdjustingtheMaximum
GroundSpeed
1.DisengagethePTO,releasethetractionpedaltothe
neutralpositionandsettheparkingbrake.
2.MovethethrottlelevertotheSlowposition,stopthe
engine,removethekey,andwaitforallmovingpartsto
stopbeforeleavingtheoperatingposition.
3.Loosenthejamnutonthestopboltforthetraction
pedal(Figure40).
39