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

7-MAINTENANCE
SelectiveCatalyticReduction(SCR)in-linelter(Initial)-Cleaning
Cleanthein-linesupplylterwhenthemachineisnewandthehourmeterregisters100hours.Cleanevery1500
hoursthereafterormoreoftenifconditionssorequire.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-
chargedduringthehoseandlterdisassembly.Clean
theareabeforethedisassembly.Disconnectthesup-
plylinebysqueezingthetabsontheconnectionand
separatethelines.
4.Usingneedlenosepliers,removethelterusingcare
nottodamageorbendlter.Ifthettingdoesnotre-
leaseeasily,recleanthettingwithcompressedair.Di-
rectthecompressedairdownintothetting,thensquirt
waterintothettingtolubricatetheO-ring.
5.Inspectthelterhousingandrinsewithwater.Iflteris
damaged,replacethelter.
6.Reinstallthelterintothesupplylineandreconnectthe
lines.
7.Starttheengineandrunatidlespeed.Checkforleaks.
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