Graco EcoQuip - Flushing the Diaphragm Valve

Repair
Flushing Flushing
Flushing
the the
the
Diaphragm Diaphragm
Diaphragm
Valve Valve
Valve
Thisprocedurecanbeperformedwiththecomponent
stillmountedinthepanel.
Iflarge-gritabrasiveorotherforeignmatterbecomes
lodgedinthediaphragmvalve,itwillbecome
necessaryto󰘱ushthevalve.Thisisasimple
procedure;however,itdoescausethereleaseofa
largevolumeofairtoescapethroughthereleased
quickcoupling.Youneedtobepreparedforthe
releaseofairbypullingthequickcouplergrommet
outofitsgroovesothatitdoesnotgetlost.
1.OperatetheunitinWASH(see
UsingtheWashFeature,page19)until
allabrasiveclearsfromtheblasthose.
2.Closetheabrasiveballvalve,thenturnthe
selectorvalvetoRINSE.Blastuntilthehoseis
clearofabrasiveandwater.
3.Disconnectthequickcouplingattheabrasive
ballvalve(notatthebottomofthepot).
4.TurntheselectorvalvetoWASH.Remainin
WASHuntilalldebrisisclear.Removethe
grommetintheguidecoupler.
5.Makesurenothingisinthepathoftheopen
quickcoupler,thenengagetheblastcontrol
switchbrie󰘱yandseveraltimes.
NOTE: NOTE:
NOTE:
High󰘱owairshouldescapethroughthe
cam-lockcoupling.Ifthisdoesnotoccur,the
diaphragmvalveismalfunctioning.Replace
entirediaphragmcanister.
NOTE: NOTE:
NOTE:
Donotdisassemblethecanister.
6.Holdthemaleendofthequickcouplerupto
thewatercomingfromthecam-lockendofthe
coupler.Cleanoffanydirtorabrasive.
7.TurntheselectorvalvetoRINSEtostopthe󰘱ow
ofwater.
8.Re-insertthegrommetintoitsinternalgroove
insidethecam-lock.
9.Reconnectthequickcoupler.Ifproperlycleaned
andconnected,thereshouldbenoleaksatthe
couplerduringoperation.
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