Operator's Manual

ControlsSystem
Maintenance
AdjustingtheCuttingUnit
Lift/Drop
Thecuttingunitlift/dropcircuitcomeswitha
ow-controlvalve(Figure47).Thisvalveispreset
atthefactoryatapproximately3turnsopen,butyou
mayneedtoadjustittocompensatefordifferencesin
hydraulicuidtemperatures,mowingspeeds,etc.
Note:Allowthehydraulicuidtoreachfulloperating
temperaturebeforeadjustingtheow-controlvalve.
1.Raisetheseatandlocatetheow-controlvalve
forthecenter-pullframe(Figure47)whichis
locatedonthesideofthehydraulicmanifold.
g033382
Figure47
1.Flow-controlvalve
2.Loosenthejamnutontheadjustingknobonthe
owcontrolvalve.
3.Rotatetheknobcounterclockwiseifthecenter
cuttingunitisdroppingtoolateorclockwiseif
thecentercuttingunitisdroppingtooearly.You
shouldnotneedtorotateitmorethan1/32to
1/16ofaturn.
4.T esttheadjustmentandrepeatstep3as
needed;whennished,tightenthejamnut.
AdjustingtheLiftCylinders
Toregulatetheheightofthefront-cuttingunitswhen
intheraised(transport)position,youcanadjustthe
front-liftcylinders.
1.Lowerthecuttingunitstotheground.
2.Loosenthejamnutontheclevisofthe
cutting-unit-liftcylinderthatneedstobe
adjusted.
3.Disconnectthecylinderclevisfromtheliftarm.
4.Rotatetheclevisuntilyouattainthedesired
height.
5.Connectthecylinderclevistotheliftarmand
tightenthejamnut.
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