Manual Conventions

Contents

Manual Conventions

. 2

Clean Outside of Gun

20

List of Models/Mix Chamber Selection Guide . . .

. 3

Clean Air Cap

20

Round Pattern Guns

. 3

Clean Muffler

20

Flat Pattern Guns

. 4

Clean Fluid Manifold

20

Flat Pattern Stud Wall Gun

. 5

Clean Mix Chamber Nozzle

21

Spatter Pattern Gun

. 6

Clean Passages

21

Wide Round Pattern Gun

. 6

Clean Impingement Ports

21

Four-Hose Gun

. 6

Troubleshooting

23

Non 1:1 Ratio Guns

. 6

Repair

27

Overall View

. 9

Tools Required

27

Isocyanate Hazard

10

Lubrication

27

Keep A and B Components Separate

10

Remove Front End

27

Grounding

10

Attach Front End

28

Piston Safety Lock

10

Mix Chamber and Side Seal Cartridges

29

Turning Air Cap

11

Check Valves

31

Loss of Air Pressure

11

Piston

32

Setup

12

Piston Safety Lock

33

Shutdown

14

Air Valve

33

Pressure Relief Procedure

15

Parts

34

Optional Configurations

16

Mix Chamber Kits

37

Optional Fluid Manifold Position

16

Flat Tip Kits

38

Optional Hose Position

17

Gun Repair Kits

38

Flat Spray Tips

18

Check Valve Filter Screen Kits

38

Maintenance

19

Drill Bit Kits

39

Supplied Tool Kit

19

Air Purge Handle Cleanout Drill Kit

40

Keep Gun Clean

19

Accessories

41

As Needed

19

Technical Data

45

Daily

19

Graco Standard Warranty

46

Weekly to Monthly

19

Graco Information

46

Flush Gun

20

 

 

Manual Conventions

Warning

WARNING

A warning alerts you to possible serious injury or death if you do not follow instructions.

Symbols, such as fluid injection (shown), alert you to a specific hazard and direct you to read the indicated hazard warnings on pages 7-8.

Caution

CAUTION

A caution alerts you to possible equipment damage or destruction if you do not follow instructions.

Note

A note indicates additional helpful information.

2

309550U

Page 2
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Graco 309550U important safety instructions Contents, Manual Conventions

309550U specifications

The Graco 309550U is a top-of-the-line airless paint sprayer that caters to both professionals and DIY enthusiasts. With its advanced features and user-friendly design, it stands out as an essential tool for achieving a flawless finish on various painting projects.

One of the main characteristics of the Graco 309550U is its powerful motor, which delivers a high level of pressure, making it suitable for a wide range of coatings. This airless sprayer can handle everything from thin paints to thicker latex and enamels without clogging, ensuring smooth and consistent application. The unit is designed to cover large areas quickly, allowing users to complete their projects in a fraction of the time compared to traditional roller or brush methods.

Equipped with Graco's exclusive ProXChange pump technology, the 309550U allows for easy pump replacement on the job site without the need for tools. This feature enhances productivity by minimizing downtime, enabling users to keep working seamlessly. The unit also boasts an innovative suction tube that can draw paint directly from the can, eliminating the need for cumbersome pouring and mess.

Another noteworthy feature is the adjustable pressure control, which allows users to customize the spray pattern and flow rate. This adaptability ensures optimal coverage in various environments and surfaces, whether applying a fine mist for intricate details or a heavier coat for larger surfaces. The built-in filter system further enhances performance by preventing debris from entering the spray mechanism, ensuring a smooth, even finish.

The Graco 309550U is designed with portability in mind. It features a lightweight frame and durable wheels, making it easy to transport across job sites or around the house. Additionally, the sprayer comes with a convenient carry handle for added mobility. Safety features, including a trigger lock, are also implemented to prevent accidental activation, giving users peace of mind during operation.

In conclusion, the Graco 309550U airless paint sprayer is a versatile and efficient tool that combines powerful performance with user-friendly features. Its robust design, ease of use, and innovative technologies make it an ideal choice for both professional painters and homeowners looking to achieve exceptional results in their painting endeavors. Whether you're tackling an interior room, exterior surface, or detailed trim work, the Graco 309550U ensures a flawless finish every time.