Case 2050M - Selective Catalytic Reduction (SCR) System - Replace Supply Module Filter

7-MAINTENANCE
SelectiveCatalyticReduction(SCR)system-Replacesupplymodule
lter
Cleanthein-linesupplylterwhenthemachineisnewandthehourmeterregisters100hours.Cleanevery1500
hoursthereafterormoreoftenifconditionssorequire.Thesupplylinehasasmallmeshlterwithintheline.Replace
themainlteratapproximately3000hours.
Prioroperation:
Keepallunauthorizedpersonnelclearofthearea.Parkthemachineonlevelground,inneutralwiththeparking
brakeapplied,andtheattachmentloweredtotheground.Makesurethatallresidualpressureisrelievedfromcircuits
beforebeginningmaintenance.TurnthemasterelectricaldisconnectswitchtotheOFFposition.
1.Opentherearlefthandaccesscompartment,andlo-
catetheDEFsupplymodule.
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2.Removetheboltsholdingthesupplymoduleinplace,
andtiltthemoduleup.
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3.LocatetheDEFsupplylinelterdirectlybelowthesup-
plymodule.
4.UseasuitablecontainertocatchanyDEFuidthatis
dischargedduringlineandlterdisassembly.Cleanthe
areabeforedisassembly.
5.DisconnecttheDEFsupplylinebysqueezingthetabs
ontheconnectionandseparatethelines.
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