Graco Inc 308584, 3500WB, 222700 manual Operation, Fluid Voltage Discharge and Grounding Procedure

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Operation

Operation

Fluid Voltage Discharge and Grounding Procedure

WARNING

ELECTRIC SHOCK HAZARD

The high voltage fluid supply is charged with high voltage until the voltage is dis- charged. Contact with the charged com-

ponents of the isolation system or spray gun elec- trode will cause an electric shock. To avoid an elec- tric shock, follow the Fluid Voltage Discharge and Grounding Procedure:

Dwhen instructed to discharge the voltage,

Dbefore cleaning, flushing, or servicing the sys- tem equipment,

Dbefore approaching the front of the gun,

Dand before opening the safety fence or the enclosure for the isolated fluid supply.

NOTE: An accessory grounding rod, part no. 210084, is available to discharge any voltage remaining on a system component. Contact your Graco representative to order it.

1.Turn off the gun electrostatics by turning the gun ES ON-OFF lever to the OFF position.

2.Discharge the voltage at the voltage isolation system by following the procedure specified in the voltage isolation system instruction manual.

3.Touch the electrode of the gun with a grounded rod to make sure that the voltage has been dis- charged. If an arc is seen, verify that the electros- tatics are turned off or see Troubleshooting , page 24, or the voltage isolation system manual for other possible problems. Resolve the problem before proceeding.

Pressure Relief Procedure

WARNING

PRESSURIZED EQUIPMENT HAZARD

The system pressure must be manually relieved to prevent the system from starting or spraying acci- dentally. To reduce the risk of an injury from acci- dental spray from the gun, splashing fluid, or moving parts, follow the Pressure Relief Proce- dure whenever you:

Dare instructed to relieve the pressure,

Dstop spraying,

Dcheck or service any of the system equipment,

Dor install or clean the fluid nozzle.

1.Follow the Fluid Voltage Discharge and Grounding Procedure, at left.

2.Relieve fluid pressure in the fluid supply and voltage isolation system as instructed in their instruction manuals.

3.Turn off the fluid supply to the gun.

4.Shut off the air supply to the spray gun. The shut-off device must bleed the air out of the sys- tem.

5.Trigger the gun into a grounded metal waste container to relieve fluid pressure.

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Contents INSTRUCTIONS-PARTS LIST 308584100 psi 0.7 MPa, 7 bar Maximum Working Pressure Part No. 222700, Series CTable of Contents SymbolsWarning Symbol Caution SymbolELECTRIC SHOCK HAZARD PRESSURIZED EQUIPMENT HAZARD FIRE AND EXPLOSION HAZARDWarnings are continued on the next page EQUIPMENT MISUSE HAZARD TOXIC FLUID HAZARDIntroduction Spraying Waterborne Fluids ElectrostaticallyOperating the Electrostatics Refer to Fig. 1, pageB A C Graco Waterborne Fluid Hose purchased separately D Inner Hose Layer EE is a PTFE tubeD Conductive Hose Layer DD covers the PTFE tube H2O PRO Voltage Block connection shownInstallation Installing the SystemVentilate the Spray Booth Warning SignsConsult your isolation system manual for other configurations PRO 3500wb Gun shown with the Graco H2O PRO Batch SystemT S N K L M G F NH R B A E D P CInstall the Air Line Accessories Install the Fluid LIne AccessoriesConnect the Air Line Connect the Exhaust TubeConnect the Fluid Hose Filter the FluidContinued on the next page H2O PRO Voltage Block Connect the Fluid Hose continuedconnection shown Ground the System FIRE, EXPLOSION, AND ELECTRIC SHOCK HAZARDCheck the Electrical Grounding Pressure Relief Procedure Fluid Voltage Discharge and Grounding ProcedureOperation Operating Checklist Selecting a Fluid Nozzle and Air CapFIRE AND EXPLOSION HAZARD Operating the Spray GunCOMPONENT RUPTURE HAZARD Atomizing Air Valve Adjustment Fine Adjustments of the Spray GunDaily Care and Cleaning MaintenanceShutdown Clean the Air Cap and Fluid Nozzle ProcedureFlush the Spray Gun Equipment neededTroubleshooting Voltage Loss TroubleshootingSpray Gun Waterborne Fluid HoseVoltage Loss Troubleshooting continued TestsElectrical Troubleshooting ProblemSolution CauseSpray Pattern Troubleshooting Poor Electrostatic Wrap Troubleshooting Gun Operation TroubleshootingGun Operation Troubleshooting continued Electrical Tests Test Gun ResistanceTest Power Supply Resistance Test Resistor Stud ResistanceService Prepare the Gun for ServiceAir Cap/Nozzle/Resistor Stud Replacement Tools Included with the GunAir Cap/Nozzle/Resistor Stud Replacement continued InstallationElectrode Needle Replacement Preventative Maintenance If installing the complete fluid rod assembly, go to step 11, pageFluid Packing Rod Removal and Repair WhereFluid Packing Rod Removal and Repair continued Fan Air Adjustment Valve Repair Fluid Adjustment Assembly RepairIf installing the complete valve, go to step DETAILAir Trigger Valve Repair Fluid Adjustment Assembly Repair continued Apply a very light coat of lubricant to the o-rings 41 Atomizing Air Valve Repair MOVING PARTS HAZARD ES ON-OFF Valve Repair05363B Barrel Removal Apply a very light coat of lubricant to the o-rings 37a Power Supply Replacement Do not expose the gasket 18a to solvents Barrel Installation Turbine Alternator Replacement05158B Graco Waterborne Fluid Hose Repair Measurements, inches mmNOTE Keep all the following parts for reassembly PRO 3500SC Gun DisassemblyPRO 3500sc Gun Conversion Installing the Fluid Needle Assembly 10. Tighten the nut 78* onto the ferrule housing Spray Gun Parts See Detail AEQUIPMENT MISUSE HAZARD Part No. 222700, Series C Model PRO 3500wb Spray GunY Replacement Warning signs are available at no cost DescriptionAccessories Use Only Genuine Graco Parts and AccessoriesWaterborne Fluid Hose Assembly 100 psi 0.7 MPa, 7 bar Maximum Working PressureFor use in the Fluid Voltage Discharge and Ground- ing Procedure Manual Change SummarySnap Ring Pliers Gun High Voltage Probe & MeterPage Category Technical DataData The Graco Warranty and Disclaimers Graco Phone NumberWARRANTY EQUIPMENT NOT COVERED BY GRACO WARRANTY