Installation

Accessories

Install the following accessories in the order shown in FIG. 2 and FIG. 3, using adapters as necessary.

Air-Powered Pumps

For typical installation, see FIG. 2 on page 10.

Accessory Air Control Kits are available for the NXT Air Motor. The kits include a master air valve, air regulator, and filter. Order the kits separately. See manual 311239 for more information.

Air Line

•Bleed-type master air valve (M): required in your system to relieve air trapped between it and the air motor when the valve is closed.

Trapped air can cause the pump to cycle unexpectedly, which could result in serious injury from splashing or moving parts.

Be sure the valve is easily accessible from the pump and located downstream from the air regulator. Be sure the air bleed hole points away from the operator.

The air motor is rated to 100 psi (0.7 MPa, 7.0 bar). If you will apply more than 100 psi (0.7 MPa, 7.0 bar) to the system, install a safety relief valve between the bleed-type master air valve and the air motor.

•Pump air regulator (L): to control pump speed and outlet pressure. Locate close to the pump.

•Air line filter (K): removes harmful dirt and mois- ture from compressed air supply.

•Second bleed-type air valve (M): isolates air line accessories for servicing. Locate upstream from all other air line accessories.

Hydraulic-Powered Pumps

For typical installation, see FIG. 3 on page 11.

Hydraulic Power Supply

CAUTION

The hydraulic power supply must be kept clean at all to avoid damage to the motor and hydraulic power supply.

1.Blow out hydraulic lines with air and flush thor- oughly before connection to the motor.

2.Plug hydraulic inlets, outlets, and line ends when disconnecting them for any reason.

Be sure the power supply can provide sufficient power to the motor. Be sure the power supply is equipped with a suction filter to the hydraulic pump.

Hydraulic Supply Line

• For Viscount I Plus motors, the hydraulic inlet on the motor is 3/4 in., 37° flare. Use a mini- mum 1/2 in. (13 mm) ID hydraulic supply line

(K).

•For Viscount II motors, use a minimum 13 mm (1/2 in.) ID supply line supply line (K). The motor has a 3/4 npt(f) hydraulic oil supply fit- ting.

•Supply line shutoff valve (S): isolates the motor when servicing the system. See FIG. 3.

•Hydraulic fluid pressure gauge (P): monitors the hydraulic oil pressure to the motor to avoid over- pressurizing the motor or lower.

•Pressure- and temperature-compensated flow control valve (T): prevents the motor from running too fast, which can damage it.

•Pressure reducing valve (N), which has a drain line (M) running to the return line (K): controls the hydraulic pressure to the motor.

8

311211L

Page 7 Page 9
Page 8
Image 8
Graco 311211L Accessories, Air-Powered Pumps, Hydraulic-Powered Pumps, Hydraulic Power Supply, Hydraulic Supply Line
Page 7 Page 9

311211L specifications

The Graco 311211L is a highly versatile airless paint sprayer designed for both professional contractors and DIY enthusiasts. This powerful machine stands out in the market due to its robust construction, exceptional performance, and innovative features that enhance the painting experience.

One of the main features of the Graco 311211L is its high-efficiency piston pump, which is capable of delivering a pressure of up to 3300 PSI. This allows users to spray thicker materials without compromising on the quality of the finish. The machine's pump is designed to handle a variety of coatings, including paints, stains, and sealers, making it suitable for a wide range of applications.

Another key characteristic of the Graco 311211L is its ability to support a broad range of hose lengths, accommodating up to 150 feet. This flexibility is particularly beneficial for large projects, as it provides users the freedom to move around without the constraints of a short hose. The airless design ensures a smooth and even application, reducing the need for back-and-forth brushing, saving time and effort.

The machine is also equipped with a convenient QuickChange tip system that allows users to interchange spray tips with ease. This feature promotes efficiency, as users can quickly switch between different spray patterns and widths to achieve the desired finish. Additionally, the Graco 311211L boasts a built-in pressure control that enables you to adjust the spray pressure according to the job requirements, ensuring optimal performance and consistency.

User comfort and convenience are further enhanced through its ergonomic design, which includes a lightweight construction and a well-balanced frame. This makes it easy to maneuver during extended use. Furthermore, it offers an integrated storage compartment for accessories, keeping everything organized and easily accessible.

In summary, the Graco 311211L airless paint sprayer combines performance, efficiency, and user-friendly features, making it an excellent choice for both professionals and DIY enthusiasts. Its adaptability to various coatings and surfaces, coupled with advanced technologies, makes it a standout option in the competitive paint sprayer market. Whether for interior or exterior projects, the Graco 311211L promises to deliver a high-quality finish with minimal effort.
Top Page Image Contents