InspectingtheNylonPivot
Bushings
ServiceInterval:Every400hours/Yearly(whichevercomes
rst)
1.Positionthesprayeronalevelsurface,settheparking
brake,stopthepump,stoptheengine,andremovethe
keyfromthestarterswitch.
2.Extendtheboomstothespraypositionandsupport
theboomsusingstandsorstrapsfromalift.
3.Withtheweightoftheboomsupported,remove
theboltandnutsecuringthepivotpintotheboom
assembly(Figure81).
Figure81
1.Pivotpin4.Nylonbushing
2.Bolt5.Pivotbracket
3.Nut
4.Removethepivotpin(Figure81).
5.Removetheboomandpivotbracketassemblyfrom
thecenterframetoaccessthenylonbushings.
6.Removeandinspectthenylonbushingsfromthefront
andbacksidesofthepivotbracket(Figure81).
Note:Replaceanydamagedbushings.
7.Placeasmallamountofoilonthenylonbushingsand
installthemintopivotbracket.
8.Installtheboomandpivotbracketassemblyintothe
centerframe,aligningtheopenings(Figure81).
9.Installthepivotpinandsecureitwiththeboltandnut
removedpreviously.
10.Repeatthisprocedureforeachboom.
Cleaning
CleaningtheRadiatorCooling
Fins
ServiceInterval:Every200hours—Cleantheradiatorns.
Important:Donotspraywaterintoahotengine
compartment.
1.Positionthesprayeronalevelsurface,settheparking
brake,stopthepump,stoptheengine,andremovethe
keyfromthestarterswitch.
2.Tiltthedriverandpassengerseatsforwardandalign
theproprodintothedetentintheproprodguideslot.
3.Allowthecoolingsystemtocool.
4.Removetheseatbaseaccesscover;refertoRemoving
theSeatBaseAccessPanel(page41).
5.Usingasoftbrushandlow-pressurecompressedair,
cleanthensoftheradiator.
Note:Cleantheradiatornesmoreoftenifneeded.
Checkallcoolanthosesandreplaceanythatareworn,
leaking,ordamaged.
6.Lowerthedriverandpassengerseats.
7.Installtheseatbaseaccesscover;refertoInstallingthe
SeatBaseAccessPanel(page41).
CleaningtheSprayerValves
•Tocleantheratecontrolvalve,refertothefollowing
sections:
1.RemovingtheValveActuator(page61)
2.RemovingtheRateControlManifoldValve(page
62)
3.CleaningtheManifoldValve(page65)
4.AssemblingtheManifoldValve(page66)
5.InstallingtheRateControlManifoldValve(page
67)
6.InstallingtheValveActuator(page69)
•Tocleantheagitationvalve;refertothefollowing
sections:
1.RemovingtheValveActuator(page61)
2.RemovingtheAgitationManifoldValve(page62)
3.CleaningtheManifoldValve(page65)
4.AssemblingtheManifoldValve(page66)
5.InstallingtheAgitationManifoldValve(page67)
6.InstallingtheValveActuator(page69)
•Tocleanthemasterboomvalve,refertothefollowing
sections:
1.RemovingtheValveActuator(page61)
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