COMPONENT RUPTURE HAZARD

Operation

Shutdown and Care of the Pump WARNING

COMPONENT RUPTURE HAZARD

To reduce the risk of overpressurizing your system, which could cause

component rupture and serious injury, never exceed the specified maximum air input pressure to the pump (see Technical Data on page 14).

10.Control the pump speed and fluid pressure with the air regulator (E). Always use the lowest air pressure necessary to get the desired results.

Higher pressure causes premature spray tip and pump wear.

11.With the pump and lines primed, and with adequate air pressure and volume supplied, the pump starts and stops as the spray gun is opened and closed. In a circulating system, the pump runs continuously and speeds up or slows down as supply increases or decreases until the air supply is shut off.

Flushing the Pump CAUTION

Never allow the pump to run dry of the fluid being pumped. A dry pump will quickly accelerate to a high speed, possibly damaging itself. If your pump accel- erates quickly, or is running too fast, stop it immedi- ately and check the fluid supply. If the supply con- tainer is empty and air has been pumped into the lines, refill the container and prime the pump and the lines with fluid, or flush and leave it filled with a compatible solvent. Be sure to eliminate all air from the fluid system.

Shutdown and Care of the Pump

FIRE AND EXPLOSION HAZARD WARNING

To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 8.

For overnight shutdown, relieve the pressure, and always stop the pump at the bottom of the stroke to prevent the fluid from drying on the exposed displacement rod and damaging the throat packings.

Always flush the pump before the fluid dries on the displacement rod. See Flushing the Pump.

Flushing the Pump

AND EXPLOSION HAZARD on page WARNING

FIRE AND EXPLOSION HAZARD

Before flushing, read the section FIRE

AND EXPLOSION HAZARD on page

4.Be sure the entire system and flushing pails are properly grounded. Refer to Grounding on page 5.

Flush with a fluid that is compatible with the fluid you are pumping and with the wetted parts in your system. Check with your fluid manufacturer or supplier for recommended flushing fluids and flushing frequency. Always flush the pump before fluid dries on the displacement rod.

Manual background CAUTION

Never leave water or water-base fluid in the pump overnight. If you are pumping water-base fluid, flush with water first, then with a rust inhibitor such as mineral spirits. Relieve the pressure, but leave the rust inhibitor in the pump to protect the parts from corrosion.

Manual background WARNING

To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 8.

1.Relieve the pressure.

2.Remove the spray tip from the gun.

3.Hold a metal part of the gun firmly to the side of a grounded metal pail.

4.Start the pump. Always use the lowest possible fluid pressure when flushing.

5.Trigger the gun.

6.Flush the system until clear solvent flows from the gun.

7.Relieve the pressure.

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Graco 239-327, Series A manual Shutdown and Care of the Pump, Flushing the Pump, Operation, Component Rupture Hazard
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239-327, Series A specifications

Graco is a renowned manufacturer known for its high-quality spray equipment and pumps, catering to both professionals and DIY enthusiasts. Their diverse lineup includes advanced models such as Series A, Series C, Model 237069, Model 289310, and Model 238620, each uniquely engineered to meet various painting and coating applications.

The Graco Series A is an outstanding choice for smaller projects. Its lightweight design and portability make it ideal for residential touch-ups, woodworking, and other small-scale applications. This series boasts a simple setup with an easy-to-use spray gun that enables users to achieve a smooth, even finish. Equipped with Graco’s ProConnect technology, Series A allows for quick pump replacement without any tools, ensuring minimal downtime during projects.

The Graco Series C offers enhanced performance and greater versatility for larger applications. This series is designed for professional contractors and serious DIYers, featuring robust construction and advanced technology. With a higher flow rate and pressure capabilities, Series C can handle more demanding projects such as residential and commercial buildings. Additionally, it incorporates SmartControl technology, electronically controlling pressure to provide consistent spray patterns regardless of the fluid being used.

Model 237069 is another exceptional option known for its compact design and efficiency. This electric airless sprayer is perfect for various interior and exterior applications, standing out due to its ease of operation. It features a reversible spray tip, allowing users to quickly clear clogs, and the adjustable pressure settings provide flexibility for different surface textures. Model 237069 is engineered for durability, making it a reliable choice for frequent use.

Model 289310 is engineered for professionals who prioritize speed and precision. This heavy-duty sprayer is equipped with an advanced hydraulic system, which ensures a consistent flow of material. Its larger hopper capacity minimizes the need for frequent refills, allowing users to complete extensive projects faster. Furthermore, the model includes an ergonomic design that reduces fatigue, empowering operators to work longer with comfort.

Lastly, Model 238620 exemplifies Graco’s commitment to innovation in airless technology. This model features an integrated digital display that offers real-time feedback and monitoring, enhancing overall user experience. With its streamlined pump design and advanced filter system, Model 238620 is capable of handling a wide range of coatings, from thin stains to thick latex paints.

In conclusion, Graco's Series A, Series C, Model 237069, Model 289310, and Model 238620 represent the brand’s dedication to quality, performance, and user-friendliness. These models cater to various project sizes and requirements, making them valuable assets for both amateurs and seasoned professionals in the painting industry.
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