Graco EQ300C - page 14

Operation

20.Opentheabrasiveballvalve.

NOTE: NOTE:

NOTE:Makesurethepotpressurereturnstothe

initialsetting(itwillnotreturntotheinitialsetting

ifthemeteringvalveisclosed).

21.Engagetheblastcontrolswitchandbegin

blasting.

NOTE: NOTE:

NOTE:Youmayhavetowait1–2minutesforthe

abrasivematerialtoreachthenozzle.

NOTE: NOTE:

NOTE:Potpressureandblastpressureshould

equalizeduringblasting.Onlysetpotpressure

withtheabrasiveballvalveclosed.Neveradjust

potpressurewhileblasting.

22.Slowlyadjusttheabrasivemetervalvewhilethe

abrasiveisblastingfromthenozzle.Typical

adjustmentrangesfrom1/8to1/4turnopen.

NOTE: NOTE:

NOTE:TheDataTrakcanbeusedtoassistin

settingthepumpcyclerate.Optimalabrasive

mediaconsumptiontypicallyoccurswiththe

cycleratesetat7–10cyclesperminute.

8800000

83000

9

NOTE: NOTE:

NOTE:Useapieceoftestmaterialsimilarto

whatyouwillbeblasting.

NOTE: NOTE:

NOTE:Alwaysstartasgentlyaspossibleand

thenincreasetheblastforceasnecessaryto

cleanwithoutdoinganydamagetothesubstrate.

Whenproperlyset,thepumpshouldcycle7-10

timesperminute.Highproductionrateusers

mayneedtoincreasecyclerateabove10cycles

perminute.

NOTE: NOTE:

NOTE:Closetheabrasiveballvalvewhenever

youstopblastingformorethan2-3minutes.

Thiswillhelptoextendtheservicelifeofthe

diaphragmvalve.

14

334667B

Contents

Main Operation,Repair,andParts EcoQuip EcoQuip VaporAbrasive Abrasive BlastSystem System EcoQuipVapor Vapor Abrasive Blast Blast Contents Contents Contents RelatedManuals Manuals Related Related Models Models WARNING WARNING 334667B 3 Warnings WARNING WARNING WARNING WARNING 334667B OEM OEM SystemGuidelines Guidelines OEMSystem System Guidelines Page DataTrak DataTrak DataTrakControls Controls Controls 334667B Page Operation Operation Operation BeforeStarting Starting ChecklistBefore Before Checklist Checklist Connecting Connecting andAir Air Hoseand and BlastHose Hose theBlast Blast Page 10 gal (30 L) 200-500 lb (90-227 kg) Page Page Blasting Blasting HigherSurfaces Surfaces onHigher Higher Blastingon on BlastingTips Tips Metering Metering ValveSettings Settings MeteringValve Valve Settings Using Using WashFeature Feature theWash Wash Usingthe the Feature Page Shutting Shutting ShuttingDown Down Down Page Winterizing Winterizing theEquipment Equipment Winterizingthe the Equipment Troubleshooting Troubleshooting Troubleshooting Page Page Page Troubleshooting Troubleshooting TroubleshootingExamples Examples forLeaks Leaks Checkingfor for Checking Checking Page Repair Repair Repair AirRegulator Regulator MainAir Air theMain Main Flushing Flushing DiaphragmValve Valve theDiaphragm Diaphragm Flushingthe the Valve Repairing Repairing DiaphragmValve Valve theDiaphragm Diaphragm Repairingthe the Valve Page Replacing Replacing DataTrakBattery Battery theDataTrak DataTrak Replacingthe the Battery Replacing Replacing DataTrakFuse Fuse 334667B 33 theDataTrak DataTrak Replacingthe the Page EQ300C EQ300C EQ600CParts Parts andEQ600C EQ600C EQ300Cand and Page Enclosure Enclosure EnclosureParts Parts Replacement Danger and Warning labels are available at no cost. 334667B 37 Pressure Pressure PressurePot Pot PotParts Parts PressurePot Pot Pressure Pressure Hose Hose HoseSchematic Schematic Schematic Vapor Vapor AbrasiveBlast Blast TrailerSystems Systems EcoQuipTrailer Trailer EcoQuip EcoQuip Mobile/Skid Mobile/Skid Mobile/SkidUnits Units TrailerUnits Units Trailer Trailer Units Hoses Hoses Hoses Nozzles Nozzles Nozzles *Performance nozzles require 100 psi (7 bar, 0.7 MPa) or more air pressure at nozzle. Page Page Technical Technical TechnicalSpecications Specications Specications Graco Graco EcoQuip GracoInformation Information Graco Graco forEcoQuip EcoQuip