Case 621G - Selective Catalytic Reduction (SCR) In-Line Filter - Cleaning

7-MAINTENANCE
SelectiveCatalyticReduction(SCR)in-linelter-Cleaning
Cleanthein-linesupplylterevery500hoursormoreoftenifconditionssorequire.Thesupplylinehasasmallmesh
lterwithintheline.
Prioroperation:
Keepallnon-authorizedpersonnelclearofthearea.Parkthemachineonlevelground,inneutralwiththeparking
brakeappliedandtheattachmentloweredtotheground.
1.Lowerthebucket/attachmenttothegroundandinstall
thetransport/servicelinkintothelockedposition.
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2.Opentheenginecompartment.Thein-linesupplylter
islocatedontheright-handsideofthemachinedirectly
abovetheSupplyModule.
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3.Useasuitablecontainertocatchanyuidthatisdis-
chargedduringhoseandlterdisassembly.Cleanthe
areabeforedisassembly.Disconnectthesupplyline
bysqueezingthetabsontheconnectionandseparate
thelines.
4.Usingneedlenosepliers,removethelterusingcare
nottodamageorbendlter.Ifthettingdoesnotre-
leaseeasily,recleanthettingwithcompressedair.Di-
rectthecompressedairdownintothetting,thensquirt
waterintothettingtolubricatetheO-ring.
5.Inspectthelterhousingandrinsewithwater.Ifthe
lterisdamaged,replacethelter.
6.Reinstallthelterintothesupplylineandreconnectthe
lines.
7.Starttheengineandrunatidlespeed.Checkforleaks.
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