Graco Inc 3A0149C General System Maintenance, Fluid Filter Maintenance, Flushing and Cleaning

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Daily Gun Care, Flushing, and Cleaning

General System Maintenance

1.Relieve the pressure, page 10.

2.Clean the fluid and air line filters daily.

3.Check for any fluid leakage from the gun and fluid hoses. Tighten fittings or replace equipment as needed.

4.Flush the gun before changing colors and whenever you are done operating the gun.

Fluid Filter Maintenance

1.Unscrew the fluid inlet fitting (18).

2.Remove and inspect the inline fluid filter (12). Clean or replace the filter as necessary.

18

12TI6735A

FIG. 16

NOTICE

The threads on the fluid inlet fitting for new model guns are slightly finer than the threads on the old model guns. The fluid inlet fittings are not inter- changeable. Use of an incorrect fitting will dam- age the threads.

Flushing and Cleaning

NOTE:

Flush before changing colors, before fluid can dry in the equipment, at the end of the day, before storing, and before repairing equipment.

Flush at the lowest pressure possible. Check con- nectors for leaks and tighten as necessary.

Flush with a fluid that is compatible with the fluid being dispensed and the equipment wetted parts.

1.Relieve the pressure, page 10.

2.Remove the air cap retaining ring (6), air cap (21), and spray tip (33). Soak the spray tip in a compati- ble solvent.

3.Disconnect the fluid supply hose (F) and air supply hose (G) from the gun.

G

F

TI6566A

TI6567A

FIG. 17

4. Connect the solvent supply hose (T) to the gun.

T

TI6566A

FIG. 18

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3A0149C

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Contents Model G15 Model G40 Model G40 w/RAC tipContents ModelsRelated Manuals Fire and Explosion Hazard Equipment Misuse Hazard Grounding InstallationTypical Installation Ventilate the Spray Booth Air Line Fluid LineSetup Reverse-A-CleanRAC Tip Assembly Trigger Lock Pressure Relief ProcedureOperation EngageddisengagedClose Open Spray Pattern AdjustmentHow the Air-Assisted Spray Gun Operates Correct Hvlp Operation Fluid ApplicationIncorrect Daily Gun Care, Flushing, and Cleaning Flushing and Cleaning General System MaintenanceFluid Filter Maintenance TI6729A Reverse-A-CleanRAC Tip EngagedDisengaged TI6580A DisengagedTroubleshooting Problem Cause SolutionTroubleshooting Repair Kits Fan Valve ReplacementRepair Complete Gun Packing Repair13‡ 14‡ 5g* 5cNeedle Repair Fluid Tube Replacement Air Valve RepairRepair 3A0149C Reassembly 5b carbide only Parts Part No. Description Qty Washer PtfeDescription AIR CAPParts 3A0149C Part No C857, G40 Gun with RAC Tip Ref. No. Part No. Description Qty TIP GUARD/AIR CAP AssyAAM Fine Finish Spray Tips Spray Tip Selection ChartSpray Tips, for use with G15/G40 Air Cap GG4 Industrial Spray TipsLTX RAC Spray Tips RAC SwitchTips, for use with G40 RAC Air CapAAF Fine Finish Pre-Orifice Spray Tips FFT Fine Finish RAC Spray Tips WRX WideRAC Spray TipsAccessories Plastic Seat Repair Kit Ultimate Gun Cleaning Kit 15C161Fan Valve Fine Adjustment Kit SST Seat Repair KitPart Interchangeability Guide Dimensions Model G4010.6 Gun Inlet Pressure PSI Technical DataCategory Data Graco Standard Warranty Graco Information