Graco Inc 308584, 3500WB, 222700 manual PRO 3500sc Gun Conversion, PRO 3500SC Gun Disassembly

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PRO 3500sc Gun Conversion

PRO 3500sc Gun Conversion

NOTE: See page 48 to order the conversion kit, part no. 223114. The fluid hose and air hose are not in- cluded with this kit. See page 48 to order hoses. Use only the electrically conductive air supply hoses and waterborne fluid hoses specified in this manual.

PRO 3500SC Gun Disassembly

1.Remove the air fitting (D), exhaust tube clamp (F), and the exhaust tube (E). Keep these parts for reassembly.

2.Remove the fluid tube fitting (B) and fluid seal (A) from the gun. See Fig. 30.

3.Remove the gun fitting bracket (C) with the hose assembly.

4.Remove the air cap assembly (G, P, Z) and dis- card the retaining nut (G).

NOTE: Keep all the following parts for reassembly.

6.Unscrew and remove the electrode needle (J) with the electrode tool. Be careful not to damage the contact wire. If the fluid rod turns, hold the back end of the fluid rod by placing a screw driver blade into the slot on the shaft, near the trigger.

7.Loosen the trigger screws (L) far enough to re- move the trigger (M).

8.Remove the fluid packing rod assembly (K) with the 9 mm hex nut driver.

H

Z

P

G

L C D

Q

AM

5.Point the front end of the gun up and squeeze the trigger while removing the fluid nozzle/resistor stud assembly (H) with the nozzle wrench.

K

J

B

R E

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

Fig. 30

F

05423A

Continued on the next page.

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Contents Part No. 222700, Series C INSTRUCTIONS-PARTS LIST308584 100 psi 0.7 MPa, 7 bar Maximum Working PressureCaution Symbol Table of ContentsSymbols Warning SymbolELECTRIC SHOCK HAZARD PRESSURIZED EQUIPMENT HAZARD FIRE AND EXPLOSION HAZARDWarnings are continued on the next page TOXIC FLUID HAZARD EQUIPMENT MISUSE HAZARDRefer to Fig. 1, page IntroductionSpraying Waterborne Fluids Electrostatically Operating the ElectrostaticsB A C H2O PRO Voltage Block connection shown Graco Waterborne Fluid Hose purchased separatelyD Inner Hose Layer EE is a PTFE tube D Conductive Hose Layer DD covers the PTFE tubeWarning Signs InstallationInstalling the System Ventilate the Spray BoothM G F NH R B A E D P C Consult your isolation system manual for other configurationsPRO 3500wb Gun shown with the Graco H2O PRO Batch System T S N K LConnect the Exhaust Tube Install the Air Line AccessoriesInstall the Fluid LIne Accessories Connect the Air LineConnect the Fluid Hose Filter the FluidContinued on the next page H2O PRO Voltage Block Connect the Fluid Hose continuedconnection shown FIRE, EXPLOSION, AND ELECTRIC SHOCK HAZARD Ground the SystemCheck the Electrical Grounding Pressure Relief Procedure Fluid Voltage Discharge and Grounding ProcedureOperation Selecting a Fluid Nozzle and Air Cap Operating ChecklistFIRE AND EXPLOSION HAZARD Operating the Spray GunCOMPONENT RUPTURE HAZARD Fine Adjustments of the Spray Gun Atomizing Air Valve AdjustmentDaily Care and Cleaning MaintenanceShutdown Equipment needed Clean the Air Cap and Fluid NozzleProcedure Flush the Spray GunWaterborne Fluid Hose TroubleshootingVoltage Loss Troubleshooting Spray GunTests Voltage Loss Troubleshooting continuedCause Electrical TroubleshootingProblem SolutionSpray Pattern Troubleshooting Gun Operation Troubleshooting Poor Electrostatic Wrap TroubleshootingGun Operation Troubleshooting continued Test Gun Resistance Electrical TestsTest Resistor Stud Resistance Test Power Supply ResistanceTools Included with the Gun ServicePrepare the Gun for Service Air Cap/Nozzle/Resistor Stud ReplacementInstallation Air Cap/Nozzle/Resistor Stud Replacement continuedElectrode Needle Replacement Where Preventative MaintenanceIf installing the complete fluid rod assembly, go to step 11, page Fluid Packing Rod Removal and RepairFluid Packing Rod Removal and Repair continued DETAIL Fan Air Adjustment Valve RepairFluid Adjustment Assembly Repair If installing the complete valve, go to stepAir 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 Measurements, inches mm Graco Waterborne Fluid Hose RepairNOTE 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 See Detail A Spray Gun PartsDescription EQUIPMENT MISUSE HAZARDPart No. 222700, Series C Model PRO 3500wb Spray Gun Y Replacement Warning signs are available at no cost100 psi 0.7 MPa, 7 bar Maximum Working Pressure AccessoriesUse Only Genuine Graco Parts and Accessories Waterborne Fluid Hose AssemblyGun High Voltage Probe & Meter For use in the Fluid Voltage Discharge and Ground- ing ProcedureManual Change Summary Snap Ring PliersPage Category Technical DataData EQUIPMENT NOT COVERED BY GRACO WARRANTY The Graco Warranty and DisclaimersGraco Phone Number WARRANTY