User guide

SEEDHAWK®30SERIESOPERATOR’SMANUAL108
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SYMPTOM
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POSSIBLECAUSE
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SOLUTION
Winghydraulicsystem
doesnotmaintain
pressure.
The“IN”pressuregaugeindicates
lessthan1200PSI
Inspectquickcouplerstoensurecomplete
engagement.
Check7plexwingdownvalue.(only
on7plexmachines.72feetandup)
Remove,inspecto‐rings,cleanandreplace
cartridgeifnecessary.
Wingliftcylinderpistonleaking. Removehosefromrodendof cylinder.Ifoil
discharges,sealisleaking.Removeand
replaceseal.
Wingsdonotrise. The“IN”pressuregaugeindicates
lessthan1200PSIforsmaller
implementsandlessthan2100PSI
forlargerimplements.
Inspectquickcouplerstoensurecomplete
engagement.Checktoseethatthecircuitis
puttingoutenoughpressure.
Wingcylinderpistonsealleaking. Removehosefromrodendofcylinder.Ifoil
discharges,sealisleaking.Removeand
replaceseal.
Cannotmaintain
packingpressureor
shankswillnotstayup
intransport.
Sealdamagedinshankcylinder.
Checko‐ringsonmeterengage
valvealsomakesuremeterengage
switchisshutoff.
Pressureshanksupandkeeplockedon.Undo
mainbridlehosesontherodendofcylinder
on
bothports.Ifoilisflowingoutofahose,
thenitisthatrankonthatwingthathasa
sealleak.Movedownthatrank,undoingthe
hosesontherodendofeachcylinder.When
theoilquitsflowing,itisthepreviouscylinder
withthefaulty
seal.Replacecylinderseal(s)
andrepeatprocessincaseofmorethanone
faultyseal.