Graco 3A2495C important safety instructions Air Supply Line, Fluid Supply Line, Hose

Installation

Air Supply Line

To reduce the risk of electric shock, the air supply hose must be electrically connected to a true earth ground. Use only Graco Grounded Air Supply

Hose.

1.See Fig. 10. Use the Graco Grounded Air Supply Hose (AH) to supply air to the gun. The gun air inlet fitting has a left-hand thread. The air supply hose ground wire (AG) must be connected to a true earth ground. Do not connect the air supply hose to the gun air inlet yet.

2.Install an air line filter/water separator (AF) on the gun air 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.

To reduce the risk of serious injury due to component rupture, including skin injection, pump pressure must be limited by the pump air regulator. Do not rely on the gun fluid regulator to limit the fluid pressure to the gun.

The fluid supply pump must be prevented from producing a fluid pressure greater than the 3000 psi (21 MPa, 210 bar) Maximum Working Fluid Pressure of the gun. For example, the air supply pressure to a 30:1 ratio pump must not exceed 100 psi (0.7 MPa, 7 bar).

3.Install bleed-type air regulators (PR, GR) on the pump and gun air supply lines to control air pressure to the pump and gun.

Trapped air can cause the pump to cycle unexpectedly, which can result in serious injury, including skin injection and splashing fluid in the eyes or on the skin. Do not operate the equipment without the bleed-type air valve (BV) installed.

4.Install a bleed-type air valve (BV) on the pump air supply line. The bleed-type air valve (BV) is required in your system to shut off air to the pump and relieve air trapped between the valve and the pump after the air regulator is shut off. Install an additional bleed-type air valve on the main air line (MA) to isolate the accessories for servicing.

5.Install an air bleed valve (BV) on each gun air supply line to shut off air to the gun(s) and relieve air trapped between the valve and the gun after the air regulator is shut off.

Fluid Supply Line

1.Blow out the fluid line (FL) with air and flush it with solvent. Use solvent which is compatible with the fluid to be sprayed. Do not connect the fluid supply line to the gun fluid inlet yet.

2.Install a fluid pressure regulator (FR) on the fluid line to control fluid pressure to the gun.

3.Install a fluid filter (FF) near the pump outlet, to remove particles and sediment which could clog the spray nozzle.

NOTE: The gun includes an inline fluid filter for additional filtration.

To reduce the risk of serious injury, including skin injection and splashing fluid in the eyes or on the skin, do not operate equipment without the fluid drain valve (FD) installed.

4.The fluid drain valve (FD) 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. Install a drain valve close to the pump's fluid outlet.

16 3A2495C