Graco Inc 3500WB, 308584 Tools Included with the Gun, Prepare the Gun for Service, Removal

Page 30
Service

Service

Tools Included with the Gun

DMulti-tool

DBall-end Wrench

D2 mm Hex Key Allen Wrench

Prepare the Gun for Service

NOTE:

DCheck all the possible remedies in Troubleshoot- ing before disassembling the gun.

DIf the plastic parts of the gun must be held in a vise, use padded vise jaws to avoid damaging parts.

DLightly lubricate o-rings and seals with petroleum jelly. Do not over-lubricate.

DOnly use genuine Graco parts. Do not mix or use parts from other PRO Gun models.

Tools Included with the Gun WARNING

FIRE, EXPLOSION, AND ELECTRIC

SHOCK HAZARD

To reduce the risk of a fire, explosion, or electric shock:

DFollow the Fluid Voltage Discharge and Grounding Procedure on page 16 and be sure the ES ON-OFF lever is turned to OFF before flushing, checking, or servicing the system and whenever you are instructed to dis- charge the voltage.

DClean all the parts with a non-flammable fluid as defined on the front cover of this manual.

DDo not service this equipment unless you are trained and qualified.

DDo not touch the gun nozzle or come within 4 inches (101.6 mm) of the nozzle during gun op- eration or until after following the Fluid Voltage Discharge and Grounding Procedure.

Prepare the Gun for Service WARNING

PRESSURIZED EQUIPMENT HAZARD

To reduce the risk of an injury, follow the Pressure Relief Procedure on page 16 before checking or servicing any part of the system and whenever you are instructed to relieve the pressure.

1.Discharge the voltage as instructed on page 16.

2.Flush the gun with a non-flammable cleaning fluid as instructed on page 21.

3.Purge the fluid out of the lines with air

4.Relieve the system pressure as instructed on page 16.

5.Disconnect the air and fluid hoses from the gun, and remove the gun from the worksite for service. The service area must be clean.

Air Cap/Nozzle/Resistor Stud

Replacement

Removal

1.Prepare the gun for service as instructed at left.

2.Remove the air cap assembly (1, 2, 8). See Fig. 16, page 31.

Air Cap/Nozzle/Resistor Stud CAUTION

Hold the front end of the gun up, and trigger the gun while removing the nozzle and resistor stud to help drain the gun and prevent any fluid left in the gun from entering the air passages.

3.Point the front end of the gun up and squeeze the trigger while removing the fluid nozzle/resistor stud (21, 22) assembly with the nozzle wrench (70).

NOTE: If the resistor stud (22) remains in the gun when the fluid nozzle is removed, start the nozzle thread onto the stud and pull the stud out.

Continued on the next page.

30 308584

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Contents 100 psi 0.7 MPa, 7 bar Maximum Working Pressure INSTRUCTIONS-PARTS LIST308584 Part No. 222700, Series CWarning Symbol Table of ContentsSymbols Caution SymbolELECTRIC SHOCK HAZARD FIRE AND EXPLOSION HAZARD PRESSURIZED EQUIPMENT HAZARDWarnings are continued on the next page EQUIPMENT MISUSE HAZARD TOXIC FLUID HAZARDOperating the Electrostatics IntroductionSpraying Waterborne Fluids Electrostatically Refer to Fig. 1, pageB A C D Conductive Hose Layer DD covers the PTFE tube Graco Waterborne Fluid Hose purchased separatelyD Inner Hose Layer EE is a PTFE tube H2O PRO Voltage Block connection shownVentilate the Spray Booth InstallationInstalling the System Warning SignsT S N K L Consult your isolation system manual for other configurationsPRO 3500wb Gun shown with the Graco H2O PRO Batch System M G F NH R B A E D P CConnect the Air Line Install the Air Line AccessoriesInstall the Fluid LIne Accessories Connect the Exhaust TubeFilter the Fluid Connect the Fluid HoseContinued on the next page Connect the Fluid Hose continued H2O PRO Voltage Blockconnection shown Ground the System FIRE, EXPLOSION, AND ELECTRIC SHOCK HAZARDCheck the Electrical Grounding Fluid Voltage Discharge and Grounding Procedure Pressure Relief ProcedureOperation Operating Checklist Selecting a Fluid Nozzle and Air CapOperating the Spray Gun FIRE AND EXPLOSION HAZARDCOMPONENT RUPTURE HAZARD Atomizing Air Valve Adjustment Fine Adjustments of the Spray GunMaintenance Daily Care and CleaningShutdown Flush the Spray Gun Clean the Air Cap and Fluid NozzleProcedure Equipment neededSpray Gun TroubleshootingVoltage Loss Troubleshooting Waterborne Fluid HoseVoltage Loss Troubleshooting continued TestsSolution Electrical TroubleshootingProblem CauseSpray Pattern Troubleshooting Poor Electrostatic Wrap Troubleshooting Gun Operation TroubleshootingGun Operation Troubleshooting continued Electrical Tests Test Gun ResistanceTest Power Supply Resistance Test Resistor Stud ResistanceAir Cap/Nozzle/Resistor Stud Replacement ServicePrepare the Gun for Service Tools Included with the GunAir Cap/Nozzle/Resistor Stud Replacement continued InstallationElectrode Needle Replacement Fluid Packing Rod Removal and Repair Preventative MaintenanceIf installing the complete fluid rod assembly, go to step 11, page WhereFluid Packing Rod Removal and Repair continued If installing the complete valve, go to step Fan Air Adjustment Valve RepairFluid Adjustment Assembly Repair DETAILFluid Adjustment Assembly Repair continued Air Trigger Valve Repair Apply a very light coat of lubricant to the o-rings 41 Atomizing Air Valve Repair ES ON-OFF Valve Repair MOVING PARTS HAZARD05363B Barrel Removal Power Supply Replacement  Apply a very light coat of lubricant to the o-rings 37a Do not expose the gasket 18a to solvents Turbine Alternator Replacement Barrel Installation05158B Graco Waterborne Fluid Hose Repair Measurements, inches mmPRO 3500SC Gun Disassembly NOTE Keep all the following parts for reassemblyPRO 3500sc Gun Conversion Installing the Fluid Needle Assembly 10. Tighten the nut 78* onto the ferrule housing Spray Gun Parts See Detail AY Replacement Warning signs are available at no cost EQUIPMENT MISUSE HAZARDPart No. 222700, Series C Model PRO 3500wb Spray Gun DescriptionWaterborne Fluid Hose Assembly AccessoriesUse Only Genuine Graco Parts and Accessories 100 psi 0.7 MPa, 7 bar Maximum Working PressureSnap Ring Pliers For use in the Fluid Voltage Discharge and Ground- ing ProcedureManual Change Summary Gun High Voltage Probe & MeterPage Technical Data CategoryData WARRANTY The Graco Warranty and DisclaimersGraco Phone Number EQUIPMENT NOT COVERED BY GRACO WARRANTY
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