Graco Inc 222700, 3500WB Turbine Alternator Replacement, Barrel Installation, Service, 05158B

Page 41

Turbine Alternator Replacement

Service

Turbine Alternator Replacement

NOTE: Replace turbine bearings after 2,000 hours of operation. See your authorized Graco representative.

1.Prepare the gun for service as instructed on page 30.

2.Remove the barrel as instructed on page 39.

3.Remove the power supply as instructed on page 40.

4.Squeeze the two ends of the retaining ring (35) together, and carefully pull the alternator (37) away from the power supply (18) until the connector (V) disengages. See Fig. 27, page 40.

5.Use an ohmmeter to test the turbine alternator coil. Measure the resistance between the two outer terminals of the 3-wire connector (V). The resistance should be 3 to 5 ohms. If the resis- tance varies from this value, replace the alternator.

6.Measure the resistance between each outer terminal of the 3-wire connector (V) and the turbine alternator (37) housing. The resistance should be infinite. If the resistance is not infinite, replace the alternator.

7.Connect the 3-wire connector (V) to the 3 prongs in the power supply (18). Push the alternator (37) onto the power supply until the retaining ring (35) engages with the alternator.

8.Install the power supply in the gun handle as instructed on page 40.

9.Install the barrel on the handle as instructed below.

Barrel Installation

1. Clean and dry the inside of the fluid inlet tube (75).

See Fig. 28.

3.Place the barrel (3) over the power supply (18) and onto the gun handle (7). Make sure the fluid nee- dle spring (30) is seated properly, and align the fluid inlet tube (75) with the bracket port. Slide the nut (78) onto the end of the fluid inlet tube.

4.Tighten the three screws (5) oppositely and evenly with the ball-end wrench (63). Tighten the cap screws to 18 in-lbs (2 NSm) maximum (about a half turn past snug). Do not over-tighten the screws.

CAUTION

To avoid damaging the gun, do not over-tighten the screws (5).

5.Install the ferrule housing (79) through the gun bracket (76), and secure it with the nut (78).

6.Test the gun resistance as instructed on page 28.

Tighten the screws (5) to 18 in-lbs (2 NSm) maximum (about half turn past snug), using the wrench (63) provided..

18a

18

34

5

3

30

7

91

7576

7879

2. Be sure the gaskets (34, 18a) and spring (30) are

in place. Replace the parts if they are damaged.

Fig. 28

05158B

308584 41

Image 41

Contents 308584 INSTRUCTIONS-PARTS LIST100 psi 0.7 MPa, 7 bar Maximum Working Pressure Part No. 222700, Series CSymbols Table of ContentsWarning Symbol Caution SymbolELECTRIC SHOCK HAZARD Warnings are continued on the next page FIRE AND EXPLOSION HAZARDPRESSURIZED EQUIPMENT HAZARD TOXIC FLUID HAZARD EQUIPMENT MISUSE HAZARDSpraying Waterborne Fluids Electrostatically IntroductionOperating the Electrostatics Refer to Fig. 1, pageB A C D Inner Hose Layer EE is a PTFE tube Graco Waterborne Fluid Hose purchased separatelyD Conductive Hose Layer DD covers the PTFE tube H2O PRO Voltage Block connection shownInstalling the System InstallationVentilate the Spray Booth Warning SignsPRO 3500wb Gun shown with the Graco H2O PRO Batch System Consult your isolation system manual for other configurationsT S N K L M G F NH R B A E D P CInstall the Fluid LIne Accessories Install the Air Line AccessoriesConnect the Air Line Connect the Exhaust TubeContinued on the next page Filter the FluidConnect the Fluid Hose connection shown Connect the Fluid Hose continuedH2O PRO Voltage Block FIRE, EXPLOSION, AND ELECTRIC SHOCK HAZARD Ground the SystemCheck the Electrical Grounding Operation Fluid Voltage Discharge and Grounding ProcedurePressure Relief Procedure Selecting a Fluid Nozzle and Air Cap Operating ChecklistCOMPONENT RUPTURE HAZARD Operating the Spray GunFIRE AND EXPLOSION HAZARD Fine Adjustments of the Spray Gun Atomizing Air Valve AdjustmentShutdown MaintenanceDaily Care and Cleaning Procedure Clean the Air Cap and Fluid NozzleFlush the Spray Gun Equipment neededVoltage Loss Troubleshooting TroubleshootingSpray Gun Waterborne Fluid HoseTests Voltage Loss Troubleshooting continuedProblem Electrical TroubleshootingSolution CauseSpray Pattern Troubleshooting Gun Operation Troubleshooting Poor Electrostatic Wrap TroubleshootingGun Operation Troubleshooting continued Test Gun Resistance Electrical TestsTest Resistor Stud Resistance Test Power Supply ResistancePrepare the Gun for Service ServiceAir Cap/Nozzle/Resistor Stud Replacement Tools Included with the GunInstallation Air Cap/Nozzle/Resistor Stud Replacement continuedElectrode Needle Replacement If installing the complete fluid rod assembly, go to step 11, page Preventative MaintenanceFluid Packing Rod Removal and Repair WhereFluid Packing Rod Removal and Repair continued Fluid Adjustment Assembly Repair Fan Air Adjustment Valve RepairIf installing the complete valve, go to step DETAIL Apply a very light coat of lubricant to the o-rings 41 Fluid Adjustment Assembly Repair continuedAir Trigger Valve Repair Atomizing Air Valve Repair 05363B ES ON-OFF Valve RepairMOVING PARTS HAZARD Barrel Removal Do not expose the gasket 18a to solvents Power Supply Replacement Apply a very light coat of lubricant to the o-rings 37a 05158B Turbine Alternator ReplacementBarrel Installation Measurements, inches mm Graco Waterborne Fluid Hose RepairPRO 3500sc Gun Conversion PRO 3500SC Gun DisassemblyNOTE Keep all the following parts for reassembly Installing the Fluid Needle Assembly 10. Tighten the nut 78* onto the ferrule housing See Detail A Spray Gun PartsPart No. 222700, Series C Model PRO 3500wb Spray Gun EQUIPMENT MISUSE HAZARDY Replacement Warning signs are available at no cost DescriptionUse Only Genuine Graco Parts and Accessories AccessoriesWaterborne Fluid Hose Assembly 100 psi 0.7 MPa, 7 bar Maximum Working PressureManual Change Summary For use in the Fluid Voltage Discharge and Ground- ing ProcedureSnap Ring Pliers Gun High Voltage Probe & MeterPage Data Technical DataCategory Graco Phone Number The Graco Warranty and DisclaimersWARRANTY EQUIPMENT NOT COVERED BY GRACO WARRANTY