Operator's Manual

Problem
PossibleCauseCorrectiveAction
1.Theseat-sensorswitchis
malfunctioning.
1.Checkthemechanicalandelectrical
operationoftheswitchandensurethe
operatorweighthasbeensetcorrectly.
2.Thehydraulic-uidlevelislow.2.Fillthehydraulic-uidreservoirtothe
correctlevel.
3.Adriveshaftissheared.3.Checkthemotorandailrotor
driveshaftsandreplacethemif
necessary.
4.Thepressurereliefvalveisjammed
openorsetwrong.
4.Havethereliefvalvepressurechecked.
Consultyourauthorizeddealer.
5.Aailrotorisjammed.5.Clearanyjamsasnecessary.
6.Acuttingunitcontrolvalveisinthe
‘off’position,causedbymalfunctioning
controlvalve.
6.Overhaulthecontrolvalve.
7.Acuttingunitcontrolvalveisinthe‘off’
position,causedbyanelectricalfault.
7.Havetheelectricalsystemcheckedfor
anelectricalfault.
Thecuttingunitsfailtostart-upwhen
loweredintowork.
8.Thelift-arm-proximityswitchis
incorrectlyset.
8.Checkandadjusttheproximityswitch.
Theailrotorsrotateinthewrong
direction.
1.Thehosesareconnectedwrong.
1.Checkthehydrauliccircuitandconnect
thehosescorrectly.
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