Operator's Manual

ControlsSystem
Maintenance
AdjustingtheCuttingUnit
Lift/Drop
Thecuttingunitlift/dropcircuitisequippedwitha
owcontrolvalve(Figure55).Thisvalveispreset
atthefactorybutanadjustmentmayberequiredto
compensatefordifferencesinhydraulicoiltemperatures,
mowingspeeds,etc.Ifanadjustmentisrequired,
proceedasfollows:
Note:Allowthehydraulicoiltoreachfulloperating
temperaturebeforeadjustingtheowcontrolvalve.
1.Raisetheseatandlocatetheowcontrolvalvefor
thecenterpullframe(Figure55)whichislocatedon
thesideofthehydraulicmanifold.
2.Loosenthejamnutontheowcontrolvalve.
3.Rotatetheknob1/4turncounterclockwiseifthe
centercuttingunitisdroppingtoolateor1/4turn
clockwiseifthecentercuttingunitisdroppingtoo
early.
4.Afterthedesiredsettinghasbeenachieved,tighten
thejamnut.
Figure55
1.Flowcontrolvalve
Backlapping
Contactwiththereelsorothermovingparts
canresultinpersonalinjury.
•Keepngers,hands,andclothingawayfrom
thereelsorothermovingparts.
•Neverattempttoturnthereelsbyhandor
footwhiletheengineisrunning.
1.Positionthemachineonalevelsurface,lowerthe
cuttingunits,stoptheengine,engagetheparking
brake.
2.Unlockandraisetheseattoexposethecontrols.
3.Makeinitialreeltobedknifeadjustmentsappropriate
forbacklappingonallcuttingunitswhicharetobe
backlapped;refertotheCuttingUnitOperator’sManual.
Changingtheenginespeedwhilebacklapping
maycausethereelstostall.
•Neverchangetheenginespeedwhile
backlapping.
•Onlybacklapatidleenginespeed.
4.Starttheengineandrunatlowidlespeed.
5.RotatetheBacklapLevertothe“R”position
(Figure56).
Figure56
1.Backlaplever2.Reelspeedcontrol
6.RotatetheReelSpeedControltosetting1
(Figure56).
7.Withthefunctionalcontrolleverintheneutral
position,movetheRaise/LowerMowcontrol
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