Miller Nitro 7310 - Foam Marker System Overview (if Equipped)

6-WORKINGOPERATIONS
Foammarkersystemoverview(ifequipped)
Thefoammarkingsystemneedslittlemaintenance,butregularroutinecleaningofthefoamheadsandltersises-
sential.
Thefoamheadshavebeendesignedsothattheelements
insidemaybecleanedasnecessary.Thescreensinside
thisunitshouldbewashedperiodicallywithhotwater.The
in-linelterelement(1)shouldbecleanedoccasionallyto
ensuresufcientliquidowtothefoamheadassemblies.
RAIL17SP00250AA1
VERSATRAC™modelfoammarkersutilizeamanifoldstylecontrolmoduleforroutingandcontroloftheairand
liquidtoeachside.Thecontrolmoduleismadeofadurableplasticblockwiththesolenoidvalvesmounteddirectly
totheblock.Theunitshouldhavehotwaterrunthrougheachsideperiodicallytoensureproperow.Becertainthat
allofthefoamsolutionisremovedfromthecontrolmodulebeforestoringitforthewinter.Referto7-93forstorage
information.
VERSATRAC™modelfoammarkersareequippedwithareliefvalvethathasbeenfactorysetat20psi.Thisvalve
preventsover-pressurizationofthesystem.Checkitsoperationperiodically.Donotattempttooperatethesystemor
adjustthereliefvalveabove20psi.
6-19