Graco EcoQuip EQ200T - 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,page17)until
allabrasiveclearsfromtheblasthose.
2.Closetheabrasiveballvalve,thenturnthe
selectorvalvetoRINSE.Blastuntilthehoseis
clearofabrasiveandwater.
3.Disconnectthequickcouplingattheabrasive
ballvalve(notatthebottomofthepot).
4.TurntheselectorvalvetoWASH.Remainin
WASHuntilalldebrisisclear.Removethe
grommetinthequickcoupler.
5.Makesurenothingisinthepathoftheopenquick
coupler,thenbrie󰘱yengagetheblastcontrol
switchseveraltimes.
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.
28 334666C