Fluid Adjustment Valve Repair

1.Prepare the gun for service, page 24.

2.Remove the fluid adjustment valve (25). It can only be replaced as a complete assembly. See FIG. 17..

3.Screw the valve (25) into the gun handle. Torque to 15-25 in-lb (1.7-2.8 N•m).

25

TI1536A

Fig. 17. Fluid Adjustment Valve

Air Valve Repair

1.Prepare the gun for service, page 24.

2.Remove the barrel, page 29.

3.Remove the fluid adjustment valve (25) from the handle (17). Remove the spring (15). See FIG. 18..

CAUTION

Clean all parts in non-conductive solvent compati- ble with the fluid being used, such as xylol or min- eral spirits. Use of conductive solvents can cause the gun to malfunction.

Repair

4.Remove the air valve (21) with a pliers. Inspect the rubber sealing surface and replace the air valve if damaged.

CAUTION

When removing the air valve (21) be careful not to damage the seat area.The rubber seal is not removable.

5.Inspect the u-cup (6*). Do not remove the u-cup unless damaged. If removed, install the new one with its lips facing into the gun handle (17).

6.Install the air valve (21) and spring (15) into the gun handle (17).

7.Install the fluid adjustment valve (25). Torque to 15-25 in-lb (1.7-2.8 N•m).

8.Install the barrel, page 29.

25

15

21

17

*6

TI1551A

Fig. 18. Air Valve

309291P

33

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Graco Inc 244399, 309291P important safety instructions Fluid Adjustment Valve Repair, Air Valve Repair
Page 32 Page 34

309291P, 244399 specifications

Graco Inc, a leading manufacturer in fluid handling systems and products, is known for its innovative solutions in various industries including automotive, construction, and industrial manufacturing. Among its compelling offerings are the models 244399 and 309291P, which represent the pinnacle of Graco's engineering prowess and customer-focused design.

The Graco 244399 is a robust fluid-handling pump designed specifically for transferring and dispensing a variety of fluids. Crafted with durability in mind, it features an air-operated diaphragm pump mechanism that ensures consistent performance in demanding environments. Its design incorporates a lightweight composite structure, making it easy to transport and install. The pump is capable of handling a wide range of fluids, including paints, coatings, and chemicals, making it versatile for different applications.

One of the standout features of the 244399 is its adjustable flow rate, allowing operators to customize the output based on specific project requirements. The self-priming capability enhances its usability, ensuring that it can effectively siphon fluids from containers without the need for additional equipment. The rugged construction provides resistance against wear and tear, further extending the lifespan of the pump.

On the other hand, the Graco 309291P is recognized for its advanced technology in spray gun performance. This model boasts a lightweight design and is engineered to reduce operator fatigue during prolonged use. The 309291P includes a patented tip technology that optimizes spray patterns and improves transfer efficiency, allowing users to achieve a smoother, more consistent finish. It is compatible with a variety of materials, from stains to thicker coatings, demonstrating its flexibility to meet varying user needs.

Both models incorporate Graco’s commitment to safety, featuring integrated pressure relief mechanisms that enhance operator protection. Furthermore, they are designed for easy maintenance, with user-friendly access points for routine inspections and part replacements.

In conclusion, Graco Inc’s 244399 and 309291P highlight the company’s dedication to providing high-quality, innovative solutions for fluid handling and application. With their superior features, advanced technologies, and user-centric designs, these models continue to set standards in performance and reliability across various industries.
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