Graco 3A0149E important safety instructions Troubleshooting

Page 19

 

 

 

 

Troubleshooting

 

 

 

 

 

 

 

 

Problem

Cause

Solution

 

 

 

 

 

 

 

 

 

 

 

Fluttering or spitting spray.

Insufficient fluid supply.

Adjust fluid regulator or fill fluid supply tank.

 

 

 

 

 

 

 

 

 

 

Air in paint supply line.

Check, tighten pump siphon hose connec-

 

 

 

 

tions, bleed air from paint line.

 

 

 

 

 

 

 

 

 

Attempting to “feather” (partially

Cannot “feather” with an AA gun. Feather will

 

 

 

 

 

 

trigger the gun).

cause drastic reduction of pressure at the tip,

 

 

 

 

 

 

 

resulting in poor atomization and/or spitting.

 

 

 

 

 

 

Striping spray.

Spray tip partially plugged.

Clean or replace spray tip. See page 14.

 

 

 

 

 

 

 

 

 

 

 

 

Irregular pattern.

Fluid build-up on spray tip, or

Clean or replace spray tip. See page 14.

 

spray tip partially plugged.

 

 

 

 

 

On defective side of pattern, air

Clean air horn holes with solvent and soft

 

horn holes are partially or totally

brush. See page 14.

 

plugged.

 

 

 

 

Pattern pushed to one side,

Air horn holes partially or totally

Clean air horn holes with solvent and soft

same side of air cap gets dirty.

plugged.

brush or toothpick. See page 14.

 

 

 

Material build up on air cap.

Air pressure setting too high.

Reduce inlet air pressure. Seven to 10 psi

 

 

(4.9 to 7.0 kPa, 0.49 to 0.7 bar) air pressure

 

 

when triggered is recommended.

3A0149E

19

Image 19
Contents Model G40 Model G40 w/RAC tip Model G15Contents Models Fire and Explosion Hazard Equipment Misuse Hazard Typical Installation Grounding Ventilate the Spray Booth InstallationFluid Line Air LineSetup Reverse-A-CleanRAC Tip Assembly Engageddisengaged Pressure Relief ProcedureOperation Trigger LockHow the Air-Assisted Spray Gun Operates Spray Pattern AdjustmentClose Open Incorrect Hvlp Operation Fluid ApplicationCorrect Daily Gun Care, Flushing, and Cleaning Fluid Filter Maintenance General System MaintenanceFlushing and Cleaning TI6729A Engaged Reverse-A-CleanRAC TipDisengaged Disengaged TI6580AProblem Cause Solution TroubleshootingTroubleshooting Complete Gun Packing Repair Fan Valve ReplacementRepair Repair KitsNeedle Repair 5g* 5c13‡ 14‡ Air Valve Repair Fluid Tube ReplacementRepair 3A0149E Reassembly 5b carbide only Parts Washer Ptfe Part No. Description QtyDescription Qty DescriptionAIR CAP Parts 3A0149E Part No C857, G40 Gun with RAC Tip TIP GUARD/AIR CAP Assy Ref. No. Part No. Description QtyRef. No. Part No. Description GG4 Industrial Spray Tips Spray Tip Selection ChartSpray Tips, for use with G15/G40 Air Cap AAM Fine Finish Spray TipsAAF Fine Finish Pre-Orifice Spray Tips RAC SwitchTips, for use with G40 RAC Air CapLTX RAC Spray Tips WRX WideRAC Spray Tips FFT Fine Finish RAC Spray TipsAccessories SST Seat Repair Kit Ultimate Gun Cleaning Kit 15C161Fan Valve Fine Adjustment Kit Plastic Seat Repair KitPart Interchangeability Guide Model G40 DimensionsCategory Data Technical Data10.6 Gun Inlet Pressure PSI Graco Information Graco Standard Warranty