System Verification

System Verification

Graco recommends running the following tests daily.

Mix and Integration Tests

Use the following tests to check for proper mix and inte- gration.

Butterfly Test

At low pressure, normal flow rate, and without a spray tip installed, dispense a 1/2 in. (12.7 mm) bead of material onto foil until multiple changeovers of each pump have occurred. Fold the sheet of foil over the fluid then peel it back and look for unmixed material (appears mar- ble-like).

Curing Test

Spray a single continuous pattern on foil at typical pres- sure setting, flow rate, and tip size until multiple change- overs of each pump have occurred. Trigger and de-trigger at typical intervals for the application. Do not overlap or cross over your spray pattern.

Check curing at various time intervals, listed on the material data sheet. For example, check for dry to touch by running your finger along the test pattern’s entire length at the time listed on the data sheet.

NOTE:

Spots that take longer to cure indicate insufficient inte- gration.

Appearance Test

Spray material onto metal substrate. Look for variations in color, gloss, or texture that may indicate improperly catalyzed material.

Pump and Metering Test

This test checks the following four items and should be run every time a new job is started, or if there is a sus- pected problem.

•Verifies that the pumps installed match the pumps selected on the Setup screen by dispensing exactly 750 ml of each material.

•Verifies that each pump holds fluid against the pump inlet valve by stalling on the down stroke.

•Verifies that each pump holds fluid against the pump piston valve and packings by stalling on the upstroke.

•Verifies that each metering valve holds fluid, and that there are no external leaks between the pump and metering valve.

•Verifies that the recirculation valves (AC, AD) are closed and do not leak.

This test will dispense 750 ml of component A, and then 750 ml of component B. Dispense into separate cups so the fluid can be returned to the supply tanks.

NOTE:

During each dispense the flow will stop once to stall the upstroke, once to stall the downstroke, and then it will finish the dispense. Do not close the sampling valve until the third flow stops and the blue pump light (DK) goes out.

1.Enter Test mode in the run (fluid control) screen.

See Test Screens on page 71. Select to run pump test.

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312359J

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Graco 312359J important safety instructions System Verification, Mix and Integration Tests, Pump and Metering Test
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312359J specifications

The Graco 312359J is a versatile paint sprayer designed for both DIY enthusiasts and professionals alike. Known for its powerful performance and user-friendly features, this sprayer is ideal for various painting tasks, from small interior projects to larger exterior applications.

One of the standout features of the Graco 312359J is its robust piston pump system, which can handle thicker materials without compromising on quality. This allows users to spray a wide range of coatings, including stains, sealers, and even heavy-duty paints. The sprayer is engineered to deliver consistent pressure, ensuring an even and professional finish on every job.

Another significant characteristic of the Graco 312359J is its ability to produce a fine mist, which helps to reduce overspray and material waste. This is particularly beneficial for intricate projects where precision is critical. Additionally, the adjustable spray pattern can be easily configured to suit various tasks, allowing users to switch from broad coverage to detailed work with minimal effort.

The convenience of portability is another important aspect of the Graco 312359J. It features a lightweight design, making it easy to maneuver around different work areas. The integrated carrying handle further enhances mobility, allowing users to transport the sprayer without hassle.

In terms of technology, the Graco 312359J incorporates an easy-to-use control system, ensuring that even beginners can achieve professional-quality results. The user-friendly design simplifies setup and maintenance, while the quick-connect nozzle system allows for easy changes between different spray tips.

Moreover, the sprayer is equipped with a durable and easy-to-clean design. Users can quickly flush out the system after use, saving time and maintaining the equipment's longevity.

Ultimately, the Graco 312359J stands out for its combination of power, portability, and advanced features, making it an excellent choice for anyone looking to achieve a flawless finish. Its blend of practicality and efficiency caters to a wide range of applications, helping both novice and experienced users achieve outstanding results with ease. Whether tackling a home renovation or a professional job, this paint sprayer is designed to meet various painting needs effectively.
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