Graco 3A2495C Air Swivel and Exhaust Valve Replacement, Air Inlet Fitting and Air Exhaust Valve

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Repair

Air Swivel and Exhaust Valve Replacement

1. See Prepare the Gun for Service, page 39.

2. To replace the air exhaust valve:

a. Remove the clamp (36) and the exhaust tube (35).

b. Unscrew the swivel (21) from the gun handle (16). The swivel is a left-hand thread. Remove the bracket (7).

c. Pull the exhaust valve (8) from the handle (16). Inspect the o-ring (8a) and replace if necessary.

d. Install the o-ring (8a*) on the exhaust valve

(8). Lubricate the o-ring with a light coating of non-silicone grease.

e. Install the exhaust valve (8) in the handle (16).

f. Apply thread sealant to the top threads of

 

the swivel (21). Position the bracket (7) and

 

screw the swivel into the gun handle (16).

 

Torque to 75–85 in-lb (8.4–9.6 N•m).

Figure 44 Air Inlet Fitting and Air Exhaust Valve

g.Install the tube (35) and clamp (36).

3.To replace the air inlet swivel:

a.Unscrew the swivel (21) from the gun handle (16). The swivel is a left-hand thread.

b.Apply thread sealant to the top threads of the swivel. Screw the swivel into the gun handle. Torque to 75–85 in-lb (8.4–9.6 N•m).

3A2495C

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Contents Instructions Important Safety InstructionsContents II 2 G Smart Display Standard DisplayFIRE, EXPLOSION, and Electric Shock Hazard Skin Injection Hazard Equipment Misuse Hazard How the Electrostatic AA Spray Gun Works Gun OverviewSetup Checklist, Chart, page 62, for availDescription Purpose See Spray Tip SelectionSmart Guns Operating Mode Bar GraphError Display Key for Figs Description Purpose Description Purpose Diagnostic Mode Alternator Speed Hertz Screen Ventilate the Spray Booth InstallationHose Air Supply LineFluid Supply Line NON-HAZARDOUS Area Typical Installation Key DescriptionGun Setup Checklist Gun SetupGun Setup Pressure Drop LED Indicator Colors DescriptionGrounding Key to Figs Ground the Operator Ground the Gun Check Gun Electrical Grounding Check Fluid Resistivity Flush Before Using EquipmentCheck Fluid Viscosity Fluid Resistivity Levels Megohms-cmOperation Pressure Relief ProcedureStartup ShutdownFlushing MaintenanceClean the Gun Daily Maintenance Check Gun Electrical Grounding, Daily System CareTest Gun Resistance Electrical TestsAlternator Removal and Replacement, Test Power Supply ResistanceTest Gun Barrel Resistance Spray Pattern Troubleshooting TroubleshootingProblem Cause Solution Clean the Gun Daily,Gun Operation Troubleshooting Power Supply Removal Replacement,Replacement, page 45 Test Gun Resistance,Replacement, page 52 See Clean the Gun Daily,Repair Prepare the Gun for ServiceSee Prepare the Gun for Service, Air Cap, Spray Tip, and Fluid Seat Housing ReplacementSee Test Gun Resistance, Electrode ReplacementFluid Tube Removal and Replacement Fluid Filter ReplacementGun Barrel Removal Gun Barrel InstallationRemove Cap and Springs Fluid Needle ReplacementSee Prepare the Gun for Service, See Gun Barrel Removal, Power Supply Removal and ReplacementAlternator Removal and Replacement Alternator Fan Air Adjustment Valve Fan Air Adjustment Valve RepairAtomizing Air Adjustment Valve Repair ES On-Off Valve Repair Air Valve Repair See Gun Barrel Installation,Smart Module Smart Module ReplacementAir Inlet Fitting and Air Exhaust Valve Air Swivel and Exhaust Valve ReplacementParts Standard Air-Assisted Spray Gun AssemblyDescription Qty Smart Air-Assisted Spray Gun Assembly See Smart Module Assembly Part No N664 Alternator Assembly Alternator AssemblyPart No N632 ES On-Off Valve Assembly ES On-Off Valve AssemblyPart No N634 Fan Air Valve Assembly Fan Air Valve AssemblyAir Cap Assembly Smart Module Assembly AEM Fine Finish Spray Tips Spray Tip Selection ChartOrifice Fluid Output AEF Fine Finish Pre-Orifice Spray TipsOz/min l/min 41 bar MPa Bar Spray TipGun Accessories Repair Kits, Related Manuals, and AccessoriesSystem Accessories Test EquipmentHoses Operator AccessoriesGun Model In. mm Weight, oz g DimensionsTechnical Data Graco Information Graco Pro Xp Warranty