Installation

System Accessories

Refer to Fig. 2 and the Accessories section.

NOTE: To ensure maximum pump performance, be sure that all accessories used are properly sized to meet your system’s requirements.

Most models are supplied with a needle-type air con- trol valve (K) at the pump air inlet. Model 226951 is equipped with an air regulator kit (CC) instead (see Fig. 3). All models are supplied with an air line quick disconnect coupler (L) to connect the air line to the pump and accessories.

Model 226951 Only

Using moderate force, extend the pump suction tube, insert the pump into the drum or tank bung hole, and screw the bung adapter (B) tightly into the bung hole. Lift the pump about 13 mm (0.5 in.) and tighten the bung adapter (B) screw to hold the pump. Loosen the vent plug (A). Refer to Fig. 2.

CAUTION

To prevent damaging the o-ring seals inside the suc- tion tube, do not use excessive force when extending the suction tube.

WARNING

A bleed-type master air valve (D) and a fluid drain valve (G) are required in your system, to help re- duce the risk of serious injury, including splashing fluid in the eyes or on the skin, and injury from moving parts if you are adjusting or repairing the pump.

The bleed-type master air valve (D) relieves air trapped between this valve and the pump after the pump is shut off. Trapped air can cause the pump to cycle unexpectedly and result in serious injury, including amputation. Locate the valve close to the pump.

The fluid drain valve (G) helps relieve pressure in the displacement pump, hose, and dispensing valve when shutting off the pump. Actuating the dispensing valve to relieve pressure may not be sufficient, especially if there is a clog in the hose or the dispensing valve.

For automatic air motor lubrication, install an air line lubricator (C) downstream from the air regulator (if supplied) and all other accessories. Install a bleed-type master air valve (D) close to the pump. Next, install the air regulator (CC), if supplied. Install an air line filter (E) upstream from all other accessories, to remove harm- ful dirt and moisture from the compressed air supply.

Using a suitable adapter, install the male disconnect pin fitting (J) in the air filter inlet. Install the air line quick disconnect coupler (L) on the air hose (F), but do not connect it to the pin fitting yet.

Connect an electrically conductive fluid hose (M) to the 3/4 npt(f) fluid outlet.

All Other Models

Refer to Fig. 2 and to the mounting accessories shown on page 35 for pump mounting methods.

Model 226951 Shown

CC

J L

B

03763

Fig. 3

307427 7

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Graco 03761B dimensions System Accessories, Model 226951 Only, All Other Models, Model 226951 Shown
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03761B specifications

The Graco 03761B is a high-performance airless paint sprayer designed to simplify the painting process for both homeowners and professionals. Renowned for its efficiency and ease of use, this sprayer is a go-to tool for delivering a smooth and even finish on a variety of surfaces.

One of the standout features of the Graco 03761B is its powerful motor. It is equipped with a robust electric motor that delivers consistent pressure, enabling the user to apply paint with precision. This feature allows for effective coverage, ensuring that every nook and cranny gets painted without any blotches or inconsistencies. The motor provides a flow rate of up to 0.34 gallons per minute, which translates to faster job completion, ultimately saving both time and effort.

The Graco 03761B utilizes advanced technologies such as the ProXChange Pump, which allows for fast and easy pump replacement on the job site. This innovation minimizes downtime, ensuring the project stays on schedule. Additionally, the airless jet technology allows users to apply coatings without the need for air compressors, reducing the equipment's weight and improving portability.

Another key characteristic of the 03761B is its adjustable pressure settings. Users can easily control the pressure to suit the type of paint and surface being sprayed. This flexibility provides the ability to tackle a wide range of applications, from fine detail work on furniture to large wall or fence projects.

The gun designed for this model is user-friendly, featuring a comfortable grip that reduces fatigue during prolonged use. The model also includes a reversible tip, which allows the user to quickly clear clogs without losing valuable work time.

The Graco 03761B is also designed with durability in mind. Its robust construction ensures that it can withstand the rigors of regular use, making it a reliable companion on job sites or during home improvement projects.

In summary, the Graco 03761B is a powerful, efficient, and versatile airless paint sprayer. With features like a strong motor, ProXChange pump system, adjustable pressure settings, and user-friendly design, it offers exceptional value for anyone looking to achieve a professional-quality finish with ease. Whether for a DIY enthusiast or a painting contractor, the Graco 03761B stands out as a top choice in the airless spray market.
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