Graco Inc 222700 Install the Air Line Accessories, Connect the Air Line, Connect the Exhaust Tube

Installation

Install the Air Line Accessories

1.Install an air line filter and an air and water separa- tor on the main air supply line to ensure a dry, clean air supply to the gun. Dirt and moisture can ruin the appearance of your finished workpiece and can cause the gun to malfunction.

2.Install a bleed-type air regulator (A) on the pump and gun air supply lines to control air pressure to the pump and gun. Refer to Fig. 3, page 10.

3.Install a bleed-type air shutoff valve on the main air line, the pump air line (to shut off air to the pump), and the gun air line (B) (to shut off air to the gun).

WARNING

PRESSURIZED EQUIPMENT HAZARD Trapped air can cause the pump to cycle or the gun to spray unexpectedly, which could result in a serious injury, including splashing in the eyes or on the skin. The bleed-type air shutoff valve is re- quired on the main air supply line so trapped air will be relieved between this valve and the pump after the air regulator is closed.

Connect the Air Line

Connect the red-colored Graco Electrically Conductive Air Hose (H) to the gun air inlet and connect the hose ground wire (M) to a true earth ground (N). Refer to Fig. 3, page 10. Check the electrical grounding of the gun as instructed on page 15. See page 48 to order the air hose.

NOTE: The hose and the gun have special left-hand threads to prevent connecting another type of air hose to the gun air inlet.

Connect the Exhaust Tube

Press the exhaust tube (provided) onto the barbed adapter on the bottom of the gun handle. Secure the tube with the clamp provided. Refer to page 46.

Install the Fluid LIne Accessories

1.Before connecting the fluid line, blow it out with air and flush it with water.

2.A fluid regulator (C) is needed in the fluid line to control fluid pressure to the gun. Refer to Fig. 3, page 10.

NOTE: The H2O PRO voltage block comes with a fluid regulator already installed.

3.Install a fluid filter and drain valve at the pump outlet.

WARNING

ELECTRIC SHOCK HAZARD

To reduce the risk of an electric shock or other serious injury, you must use the red-colored Graco Electrically Conduc-

tive Air Hose for the gun air supply hose, and you must connect the hose ground wire to a true earth ground. Do not use the black or grey-colored Graco air hoses.

WARNING

PRESSURIZED EQUIPMENT HAZARD

To reduce the risk of serious injury, including splashing in the eyes or on the skin, install a fluid drain valve close to the pump’s fluid outlet. The fluid drain valve is required in your system to assist in relieving fluid pressure in the displacement pump, hose and gun; triggering the gun to relieve pressure may not be sufficient.

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