Toro 41235 - Adjusting the Boom Actuator; Emergency Manual Operation of the Boom Actuators

necessary.(seeanAuthorizedToro
ServiceDistributor)
Every400hours/Yearly(whichever
comesrst)—Inspectthepumpcheck
valvesandreplaceifnecessary.(seean
AuthorizedToroServiceDistributor)
Note:Thefollowingmachinecomponentsareconsidered
partssubjecttoconsumptionthroughuseunlessfound
defectiveandarenotcoveredbytheWarrantyassociatedwith
thismachine.
HaveanAuthorizedToroServiceDistributorcheckfollowing
internalpumpcomponentsfordamage:
•Pumpdiaphragm
•Pressuredampenerbladder
•Pumpcheckvalvesassemblies
Replaceanycomponentsifnecessary.
AdjustingtheAirPressureinDampener
Theairpressureinthedampeneronthepumpissetat15psi
(1bar)bythemanufacturer.Therecommendedpressurein
thedampeneris1/3ofthesprayingpressure.Ifusingaspray
pressuregreaterthan45psi(3.1bar)adjustthedampener
accordingly.
AdjustingtheBoomActuator
ServiceInterval:Every400hours
Inspecttheactuatorhydraulicoilforairbubblesevery400
hours.
1.Positionthesprayeronalevelsurface,lowerthebooms
intothesprayposition.
2.Settheparkingbrake,stopthepump,stoptheengine,
andremovetheignitionkey
3.Attempttolifttheboombyapplyingamoderate
amountofpressure(justenoughtolifttheboom
manually)whileobservingtheactuatorrod.Ifthe
actuatorrodexhibitsmovementrefertobelow.
4.Repeattheprocedurefortheopposingboom.
Iftheactuatorrodexhibitsanaxialmovement(travelsintoor
outofthecylinder)greaterthan0.085-0.100inch(2.16-2.54
mm),youmaywishtobleedtheairfromthehydraulicoil.
RefertotheServiceManualforinstructionsonhowtobleed
airfromtheactuatorsorcontactanAuthorizedToroService
Distributor.
EmergencyManualOperation
oftheBoomActuators
Note:Determinetheleftandrightsidesofthemachine
fromthenormaloperatingposition.
DANGER
Useofthemanualreliefvalvemaycausetheboom
tomovesuddenlyandcauseinjurytoyouorothers.
•Takecautionandadjustthemanualreliefvalve
slowly.
•Ensurethesurroundingareaisclearandnoone
isinsidetheoperatingrangeoftheboom.
CAUTION
Adjustingthemanualreliefvalvewithelectrical
powerpresentcouldcausetheactuatoroperate
irregularlyandcauseinjurytoyouorothers.
Do not usethemanualreliefvalvewhileelectrical
powerisbeingsuppliedtotheactuator.
Incaseofanemergencysuchthattheboommustbemoved
andno12VDCpowersourceisavailable,themanualrelief
valvecanbeusedtorelievepressurewithintheactuatorand
allowtheboomstobemovedmanually.
Important:Themanualvalvemustnotbeloosened
morethan4turns.Turningthevalvemorethan4turns
maycausethevalvetocomeoffcompletelyallowing
hydraulicoiltospillout.
1.Locatethemanualreliefvalveontheactuatorforeach
boom.Themanualreliefvalveisthesmallervalveand
isonlyononesideoftheactuatorbody(
Figure52).
Figure52
1.Actuator,rightboom
2.Manualreliefvalve
Note:Duetotheopposingorientationofactuatorsin
respecttoeachotherthemanualreliefvalveisonthe
forwardfaceoftheleftboomactuatorandtherear
faceoftherightboomactuator.
2.Useahexagonalwrenchtoloosenthemanualrelief
valvenomorethan2-3turns.Thecylindershouldstart
strokingmanuallyorbyexternalpressureatthistime.
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