Graco Inc 311001C important safety instructions Air Line, Fluid Line

Page 7

Air Line

1.Install an air filter (A) on the gun air line to ensure a dry, clean air supply to the gun. Dirt and moisture can ruin the appearance of your finished workpiece. See FIG. 1.

2.Install an air pressure regulator (C) on the gun air line to control air pressure to the gun.

3.Install an air shutoff valve (B) on the gun air line and on the pump air line, to shut off air to the gun.

4.Use a 3/16 in. (5 mm) I.D. or larger air hose to mini- mize excessive pressure drop in the hose.

The gun air inlet has a 1/4-18 npsm (R1/4-19) com- pound male thread that is compatible with NPSM and BSP female swivel connectors.

5.Connect the air hose (G) to the 1/4 npsm gun air inlet. See FIG. 2.

G

TI6556A

FIG. 2

Installation

Fluid Line

Before connecting the fluid line, blow it out with air and flush it with solvent. Use solvent which is com- patible with the fluid to be sprayed.

If better control of fluid pressure is needed, install a fluid regulator on the fluid line to better control fluid pressure to the gun.

1.Use a fluid filter to remove coarse particles and sed- iment, to avoid clogging the spray tip and causing finishing defects.

Guns are equipped with a built-in 100 mesh fluid fil-

ter to provide final filtering just before spraying.

2.Connect the fluid hose (F) to the gun fluid inlet. See FIG. 4. If desired, install a fluid swivel connector (115898) at the gun inlet for best maneuverability. See Accessories, page 33.

F

TI6846A

FIG. 4

6.Connect the other end of the air hose (G) to the out- let of the air shutoff valve. See FIG. 3.

B

G

C

A

TI4838A

FIG. 3

3.Connect the other end of the fluid hose (F) to the pump fluid outlet.

311001C

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Contents II 2 G Model G15Model G40 Model G40 w/RAC tipModels ContentsRelated Manuals Fire and Explosion Hazard Pressurized Aluminum Parts Hazard Typical Installation Grounding InstallationFluid Line Air LineSetup Reverse-A-CleanRAC Tip Trigger Lock SafetyPressure Relief Procedure OperationHow the Air-Assisted Spray Gun Operates Spray Pattern AdjustmentNo air Too little air correct amount Air Fluid Application Hvlp OperationDaily Gun Care, Flushing, and Cleaning Fluid Filter Maintenance General System MaintenanceFlushing and Cleaning Connect the solvent supply hose T to the gun Clearing a clogged RAC tip Disengaged Problem Cause Solution TroubleshootingGeneral Troubleshooting Follow Pressure Relief Procedure on page 10. Read warnings,Troubleshooting Repair Kits Items Needed for ServiceFan Valve Replacement RepairNeedle Repair 5g* 5c† 5d† 5b†13‡ 14‡ Air Valve Repair Fluid Tube ReplacementRepair 311001C Reassembly 5b† G40 only 5c† 5d† Parts Washer Ptfe Part No. Description QtyPart No /G40 Gun w/RAC Tip TIP GUARD/AIR CAP Assy GG4 Industrial Spray Tips Spray Tip Selection ChartSpray Tips, for use with AA Series Air Cap AAM Fine Finish Spray TipsLTX RAC Spray Tips RAC SwitchTips, for use with AA Series Air CapWRX WideRAC Spray Tips FFT Fine Finish RAC Spray TipsAccessories Category Data Technical Data10.6 Gun Inlet Pressure PSI Dimensions Graco Information Graco Standard Warranty