Check Valves

Before disassembling, press on ball (26c) to test check valve for proper movement and spring action.

1. Follow Pressure Relief Procedure, page 15.

2. Remove fluid manifold (M). Leave air connected.

Clean Fluid Manifold, page 20.

M

TI2543A

3. Flush gun to remove residual A and B compo-

nents, page 20. Follow Pressure Relief Proce- dure, page 15.

4. Disconnect air.

TI2540A

CAUTION

To prevent cross-contamination of the check valves, do not interchange A component and B component parts. The A component check valve is marked with an A.

Repair

5. Pry out check valves (26) at notch.

WARNING

Read warnings, page 7. Damaged check valve o-rings (26f, 26g) may result in external leakage. Replace o-rings if any damage is seen.

6. Slide filter (26d) off. Clean and inspect parts. Thor-

oughly inspect o-rings (26f, 26g). If necessary, remove screw (26b) and disassemble entire check valve.

B

A

26b

26e

26c

26d

26

26g

26a

26f TI2429A

7. Reassemble check valves. Screw (26b) should be

flush (within 1/16 in. or 1.5 mm) of housing (26a) surface. Liberally lubricate o-rings (26f, 26g) and carefully reinstall in fluid housing.

8. Attach fluid manifold. Connect air. Return gun to

service.

31

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Image 31
Graco 309550ZAE important safety instructions Check Valves, Clean Fluid Manifold
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309550ZAE specifications

The Graco 309550ZAE is a high-performance airless paint sprayer designed for professionals and DIY enthusiasts who demand precision and efficiency in their painting projects. This powerful tool stands out in the market for its robust construction and exceptional capabilities, making it ideal for a wide range of applications, including residential, commercial, and industrial painting tasks.

One of the main features of the Graco 309550ZAE is its powerful motor, which delivers consistent pressure for a smooth and even finish. The sprayer is equipped with a 0.5 horsepower motor that can easily tackle thick coatings, including latex paints and stains. This motor is designed for durability, ensuring that it can withstand the rigors of frequent use without compromising performance.

The Graco 309550ZAE also features a user-friendly control system that allows for easy adjustments and operation. Its adjustable pressure settings enable users to fine-tune the spray pattern according to the specific requirements of their project. This versatility lets painters choose from a variety of spray tips, ensuring optimal coverage whether they are working on walls, ceilings, or intricate moldings.

Another significant characteristic of this sprayer is its lightweight and portable design. Weighing in at just around 25 pounds, the Graco 309550ZAE is easy to transport to different job sites. Its durable wheels and ergonomic handle enhance mobility, making it suitable for both indoor and outdoor applications.

The sprayer's built-in filter system helps prevent clogs and ensures a continuous flow of paint, which is crucial for achieving a flawless finish. Additionally, it comes with a robust hose that can extend up to 50 feet, allowing painters to cover large areas without frequent repositioning.

Moreover, Graco has integrated advanced technologies into the 309550ZAE, such as the ProConnect system. This feature allows for easy pump replacement, ensuring minimal downtime and enabling users to get back to work quickly.

In terms of safety, the Graco 309550ZAE is equipped with an integrated airless spray gun that includes safety features to prevent accidental spraying. This enhances user protection, particularly for those who may be new to using airless sprayers.

Overall, the Graco 309550ZAE combines power, reliability, and ease of use, making it an excellent choice for anyone looking to achieve professional-grade results in their painting projects.
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