Graco Inc 308741N dimensions Setup, Connect the Air Line, Connect the Fluid Hose

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Setup

1. Connect the Air Line

NOTE:

DYou must install an air pressure regulator (F) on the gun air line to control air pressure to the gun. See Fig. 2.

DIf your regulated air source does not have a filter, install an air filter (G) on the 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. 2.

DUse a 5/16 inch (7.9 mm) I.D. air hose to minimize excessive pressure drop in the hose. See the Pressure Drop Chart on page 11 for the expected pressure drops through a 25 ft. (7.625 m) hose.

A.Connect the air hose (D) to the 1/4 npsm gun air inlet (C).

C

D

2. Connect the Fluid Hose

NOTE:

DBefore connecting the fluid line, blow it out with air and flush it with solvent. Use solvent which is compatible with the fluid to be sprayed.

DInstall a fluid regulator (L) on the fluid line to control fluid pressure to the gun. See Fig. 4.

DFilter the fluid line of coarse particles and sediment to avoid clogging the fluid nozzle and causing finishing defects.

A.Connect the fluid hose (J) to the gun fluid inlet (B) 3/8–18 npsm [R 3/8–19] compound thread.

B

J

7034A

Fig. 3

Fig. 1

7033A

B. Connect the other end of the fluid hose (J) to a

regulated fluid supply line (K).

NOTE: Fig. 4 shows the fluid regulator (L) and

B.Connect the other end of the air hose (D) to a reg- ulated air supply line (H).

NOTE: Fig. 2 shows the filter (G) air regulator (F), and air shut-off valve (E) on the air supply line.

H G F

fluid shut-off valve (M) on the fluid supply line (K).

K

L

M

J

E D

Fig. 2

01990

Fig. 4

7016A

 

 

 

 

8 308741

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Contents Instructions Parts List Table of ContentsSymbols 308741Pressurized Equipment Hazard Selection Charts Hvlp Spray Gun AssembliesHvlp Spray Gun and Pressure Cup Assemblies Hvlp Spray Gun and Gravity CupAssemblies Optional Hvlp Air CapsAtomizing Air Pressure Air Flow and Atomizing PressureAir Flow Typical Installation Ventilate the Spray BoothConnect the Fluid Hose SetupConnect the Air Line Relieve the Pressure Position the Air Cap Adjust the Spray PatternFlush the Spray Gun Fluid Velocity of Fluid Nozzles At the Same Flow Rate Inch 7.9 mm I.D. hose Pressure Drop ChartAir Regulator Pressure Gun Inlet Pressure Setting Applying the Fluid Pressure Relief ProcedureOperation Do not immerse the gun in solvent Daily Gun Care, Flushing, and CleaningGeneral System Maintenance 7035A 7044A 7045A Lubricate Troubleshooting Problem Cause SolutionFluid Packings Replacement ServiceItems Needed for Service 2b 2a Complete Gun Packing Replacement 20 or 25b 19 or 25a Service 308741 Item 13 includes item 13a Item 25 includes 25a-25d PartsItem 2 includes 2a-2b Part No to Pressure Feed Hvlp Spray Gun Assembly Description QtyGun Needle Nozzle Kit Item 12 Nozzle Needle Assy7585A Gravity Feed Hvlp Spray Gun Assembly Accessories Gravity Cup Gravity Cup Holder BracketSST Pressure Cup Kit 239802 with single air regulator Quart Remote SST Pressure CupCategory Data DimensionsTechnical Data 308741 Toll Free Graco Standard WarrantyGraco Information