Graco EcoQuip 2 EQs Elite [30/74] 3a3489c

Graco EcoQuip 2 EQm [30/74] 3a3489c
Troubleshooting
Problem Problem
Problem
Cause Cause
Cause
Solution Solution
Solution
Theairsupplyisinadequate.
Makesuretheaircompressoriscapableofsupplying
theminimumairowrequirementforyoursystem(see
TechnicalSpecications,page67).Makesuretheairinlet
pressuregaugereads100-175psi(6.8–12bar,0.68–1.2
MPa).Ifthegaugedoesnotread100–175psi,checktheair
compressorforpropersetup.Makesuretheairinletlters
arecleanandreplaceifnecessary.
Theblasthosewasnot
properlycleanedoutafter
previoususe.
SeeShuttingDown,page21.
Theabrasivemeteringvalve
settingistoohighfortheblast
pressureand/orabrasive
type.
SeeSettingtheAbrasiveMeteringValve,page17.
Thepotdoesnothavea
sufcientamountofabrasive.
Rellthepotwithabrasive(see
RellingthePotwithAbrasive,page21).
Thereisanobstructioninthe
nozzle
Removethenozzleandinspectforblockage,buildup,or
damage.Replaceifnecessary.
Theblastspray
patternissputtering
orirregular.
Thereisanobstructioninside
thepotorinsidetheabrasive
hosebetweenthepotandthe
enclosure.
PerformDrainingthePot,page22,followedby
PressureReliefProcedure,page10.Withtheabrasive
hosedisconnected,inspecttheinteriorofthepinchhose
forobstructionsordebrisandreplaceifnecessary(see
ReplacingthePinchHose,page33).Removethetri-clamp
fromthebottomofpot.Inspectthebottomofthepotand
abrasivehoseforobstructionsordebris.
Thereisnotenoughwaterin
abrasivemixture.
SeeUsingtheWaterDoseMeter,page24(anupgradekitis
availablefornon-Elitemodels).
Theblastpressuretoohigh.Decreasetheblastpressureandre-evaluatethedustlevels.
Toomuchdustoccurs
duringblasting.
Theabrasiveistooneforthe
application.
Tryacoarserorharderabrasiveifpossible.
Thewaterdosevalve(S)
opentoofar.
Closethewaterdosevalve(S).
Theabrasivematerialistoo
coarse.
Ifpossible,useatleast20meshabrasivematerial.Otherwise,
decreasetheCPMsetpointuntilthepatternimproves.
Toomuchwateris
comingfromthenozzle
inBLASTmode.
Theabrasivemeteringvalve
settingtoohighforblast
pressureand/orabrasive
type.
SeeSettingtheAbrasiveMeteringValve,page17.
303A3489C

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