Installation

System Accessories

A main air bleed valve and pump bleed valve (P) are required. These accessories help reduce the risk of serious injury, including fluid injection and splashing of fluid in the eyes or on the skin, and injury from moving parts if you are adjusting or repairing the pump.

The main air shutoff valve shuts off the air to the pump and ram. The air motor valve relieves air trapped between this valve and the pump after the air is shut off. Trapped air can cause the pump to cycle unexpect- edly. Locate the valve close to the pump.

The pump bleed valve assists in relieving fluid pressure in the displacement pump, hose, and gun/valve. Trig- gering the gun/valve to relieve pressure may not be sufficient.

If using Check-Mate pump with Graco Supply Sys- tems, refer to Supply Systems Operation manual

for system accessory installation instructions.

For use with all other systems, use this section for accessory installation instructions.

Be sure all air lines (T) and fluid lines (S) are properly sized and pressure-rated for your system. Use only electrically conductive hoses. Fluid hoses must have spring guards on both ends.

Mounting Accessories

Mount the pump package to suit the type of installation planned. Pump dimensions are shown on page 30. Refer to Check-Mate Displacement Pump manual 312375 for mounting hole layout.

Air Line Accessories

Install the following accessories as listed. Refer to FIG. 1 to see air line accessories represented in a typical sup- ply unit installation.

•Main air shutoff valve (W) isolates the air line accessories for servicing. Locate upstream from all other air line accessories.

•Air line filter (V) removes harmful dirt and moisture from the compressed air supply. Also, install a drain valve at the bottom of each air line drop, to drain off moisture.

•Air regulator (G and AH) controls pump speed and outlet pressure by adjusting the air pressure to the pump. Locate the regulator close to the pump, but upstream from the bleed-type master air valve.

•Air motor valve (AJ) is required in your system to shut off the air supply to the pump (see WARNING). When closed, the valve will bleed off all air in the pump. Be sure the valve is easily accessible from the pump.

•Pump runaway valve (AK) senses when the pump is running too fast and automatically shuts off the air to the motor. A pump which runs too fast can be seriously damaged. Locate in the position shown.

•Pump bleed valve (P) is required in your system to relieve fluid pressure in hose and gun (see WARN- ING).

Fluid Line Accessories

Install the following accessories as listed. Refer to FIG. 2 to see fluid line accessories represented in a typical supply unit installation.

•Install a fluid shutoff valve at each gun/valve drop, to isolate the gun/valve and fluid accessories for servicing.

•Install a fluid drain valve near the pump fluid outlet, and at each gun/valve station. The drain valves are required in your system to relieve fluid pressure in the displacement pump, hose and gun/valve (see WARNING). Drain valves at the gun/valve stations may be mounted in the base of a fluid regulator, using an adapter.

•Fluid regulator controls fluid pressure to the gun/valve, and dampens pressure surges.

•Gun or dispense valve dispenses the fluid.

•Gun/valve swivel allows freer gun/valve movement.

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Graco P40RCM, P39LCS, P20LCM System Accessories, Mounting Accessories, Air Line Accessories, Fluid Line Accessories
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P40RCM, P39LCS, P20LCM specifications

Graco, a renowned brand in the world of fluid handling equipment, has developed a series of versatile and high-performance products tailored for various applications. Among these, the Graco P20LCM, P39LCS, and P40RCM stand out for their innovative features, technologies, and characteristics that enhance productivity and efficiency in professional environments.

The Graco P20LCM is a lightweight and portable paint sprayer designed for small to medium-sized projects. It features Graco’s exclusive ProConnect technology, which allows for quick and easy pump replacement, minimizing downtime. The P20LCM also incorporates a SmartControl system that provides consistent pressure and prevents overspray for a flawless finish. Its flexible suction tube allows for drawing paint directly from a bucket, while its compact design ensures ease of transport, making it ideal for contractors and DIY enthusiasts alike.

In contrast, the Graco P39LCS embodies a robust solution tailored for larger projects. This airless paint sprayer is engineered for high efficiency, capable of handling thicker coatings with ease. It boasts a powerful hydraulic system that maintains pressure, ensuring an even application over large surfaces. The P39LCS integrates the Grip and Guard with LED indicators, enhancing user experience and safety. Additionally, its durable construction and advanced filtration system help in prolonging the lifespan of the equipment, reducing maintenance requirements and downtime.

The Graco P40RCM is an advanced model that offers unrivaled versatility and control, making it a preferred choice for professional contractors. This sprayer features advanced electronic controls that enable users to adjust pressure settings on the fly, offering ultimate control over the application process. The P40RCM is compatible with a wide range of coatings, including paints, stains, and sealants, providing flexibility for diverse job needs. Its AutoPrime technology simplifies the priming process, allowing for faster setup and minimal manual intervention. Furthermore, rugged wheels and a durable frame enhance maneuverability and resilience on job sites.

Together, the P20LCM, P39LCS, and P40RCM encapsulate Graco’s commitment to quality and innovation. With user-friendly features, advanced technologies, and robust designs, these products are engineered to meet the demands of professionals and improve efficiency while delivering superior results in every application.
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