Reassembly

1.Install air control valve assembly (5) with valve turned fully counterclockwise to out- ermost position. Torque to 85-90 in-lb (9.6-10.2 N•m).

2.Install air inlet valve assembly (27) with valve turned fully counterclockwise to out- ermost position. Torque to 205-215 in-lb (23.2-24.3 N•m).

3.Lubricate u-cup spreader (15) and u-cup packing (16). Insert spreader (15) with tapered end facing rear of gun. Install u-cup packing (16) with open end facing front of gun. Install packing nut (17). Torque to

3 in-lb (0.3 N•m).

ti11226a

17 16 15

Repair

4.Install wave washer (18) with cupped side toward the gun body. Lubricate and apply thread retainer to trigger pin (10). Install trigger (10), trigger pin (21), and trigger nut (22). Torque to 15-20 in-lb

(1.7-2.2 N•m).

5.Install air valve assembly (6), spring (28), and nut (7). Torque to 175-185 in-lb (19.8-20.9 N•m).

6.Install needle (9) and spring (26). Lightly lubricate and install fluid control valve (8).

7.Trigger gun while replacing nozzle (11). Torque to 155-165 in-lb (17.5-18.6 N•m).

8.Install air cap assembly (13) and retaining ring (14).

312578H

312578H specifications

Graco Inc. 312578H is a versatile and reliable component engineered for the fluid handling industry. Graco, a recognized leader in manufacturing equipment and systems for the precise spraying and transferring of fluids, has incorporated cutting-edge technology into this product, ensuring it meets the high standards of performance and efficiency that customers expect.

One of the main features of the 312578H is its robust construction that is designed to withstand demanding working environments. The unit is made with high-quality materials that resist wear and tear, ensuring a longer service life and reduced maintenance costs. This durability is crucial for professionals who rely on consistent performance in their day-to-day operations.

The 312578H is equipped with advanced technology such as the ProConnect system, which allows for quick and easy component replacement. This feature minimizes downtime and enhances productivity, allowing users to get back to their tasks swiftly. Additionally, the unit is designed for easy integration with other Graco products, enabling a seamless workflow in multi-component setups.

Another significant characteristic of the 312578H is its adaptability. It can handle a wide range of fluids, from thin solvents to thicker coatings, making it suitable for various applications across industries such as automotive, construction, and industrial manufacturing. Its versatility is complemented by precise flow control technology, ensuring optimal performance regardless of the fluid density or viscosity.

Ergonomics are also a key consideration in the design of the 312578H, with user-friendly controls that enhance operability. This focus on usability helps reduce user fatigue and increases efficiency on the job site, leading to improved overall productivity.

In summary, Graco Inc. 312578H showcases a combination of durability, advanced technologies, and user-centric design. This makes it an essential tool for professionals in the fluid handling sector. With its robust construction, ease of maintenance, wide fluid compatibility, and ergonomic controls, the Graco Inc. 312578H stands out as a strong contender for those seeking reliable and efficient fluid handling solutions.