Assessments - 3, GPA: 3.7
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Check and follow all National, State, and Local codes regarding air exhaust velocity requirements. NOTE: High velocity air exhaust will decrease the operating efficiency of the electrostatic system. Air exhaust velocity of 100 ft/min (31 linear meters/minute) should be sufficient. 307912 5 Installation KEY A Main Air Supply Line B* Ventilation Fan Interlock Solenoid Valve C* Main Air Supply Shutoff Valve (bleed-type) D Air & Water Separator E* Pump Air Supply Shutoff Valve (bleed-type) F Air Line Lubricator G Air Pressure Regulator H Pump J* Pump Ground Wire K Fluid Filter L Fluid Supply Line Shutoff Valve M Fluid Pressure Regulator N Fluid Supply Line O Air Filter (20 micron) P Air Supply Line Shutoff Valve Q* Air Hose Ground Wire R* Graco Electrically Conductive Air Hose S Electrostatic Spray Gun T Air Line Drain Valve U* Fluid Drain Valve V Gun Air Inlet W Gun Fluid Inlet X Gun Exhaust Tube * Required for safe operation. Must purchase separately. See Accessories. NOTE: Solenoid Valve (B) is not offered as a Graco accessory. Non-hazardous Area Hazardous Area WARNING SIGN B* C* D O A M N H E* G F U* K L T Q* R G P V W S J* ES ON-OFF Lever 1 is ON 0 is OFF X The air supply to the gun must be electrically interlocked with the ventilators to prevent the power supply from operating without ventilating fans on. Fig. 1 6 307912 Installation Connect the Air Line (Refer to Fig. 1) WARNING ELECTRIC SHOCK HAZARD To reduce the risk of an electric shock or other serious injury, the air supply hose must be electrically connected to a true earth ground. Use Only Graco Electrically Conductive Air Supply Hose. 1. Connect the Graco Electrically Conductive Air Supply Hose (R) between the air supply line and the gun’s air inlet (V). The gun air inlet fitting has a left hand thread. Connect the air supply hose ground wire to a true earth ground. 2. Install an air line filter (O) and an air and water separator (D) on the 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. 3. Install a bleed-type air regulator (G) on the pump and gun air supply lines to control air pressure to the pump and gun. 4. Install a bleed-type air shutoff valve on the main air line (C) and the pump air line (E) to shut off air to the pump. Install an additional bleed-type valve on each pump air supply line to relieve air trapped between this valve and the pump after the air regulator is shut off. WARNING PRESSURIZED EQUIPMENT HAZARD The bleed-type air shutoff valve is required in your system to relieve air trapped between this valve and the pump after the air regulator is closed. Trapped air can cause the pump to cycle unexpectedly, which could result in serious injury, including splashing in the eyes or on the skin. 5. Install an air line lubricator (F) as close to the pump (H) as possible. 6. Install an air shutoff valve (P) on each gun air supply line to shut off air to the gun(s). 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 34. Connect the Fluid Line (Refer to Fig. 1) 1. Before connecting the fluid line (N), blow it out with air and flush it with solvent. Use solvent which is compatible with the fluid to be sprayed. 2. Install a fluid regulator (M) on the fluid line to control fluid pressure to the gun. 3. Install a fluid filter (K) and drain valve (U) at the pump outlet. WARNING PRESSURIZED EQUIPMENT HAZARD The fluid drain valve (U) 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. The drain valve reduces the risk of serious injury, including splashing in the eyes or on the skin. 4. Connect the fluid line to the 3/8–18.6(m) gun fluid inlet (W). 5. Before running any paint through the spray gun, flush it out with a compatible solvent. 307912 7 Installation Ground the System WARNING FIRE, EXPLOSION, AND ELECTRIC SHOCK HAZARD When operating the electrostatic device, any ungrounded objects in the spray area (such as people, containers, tools, etc.) can become electrically charged. Improper grounding can result in static sparking, which can cause a fire, explosion, or electric shock. Follow the grounding instructions below. The following are minimum grounding requirements for a basic electrostatic system. Your system may include other equipment or objects which must be grounded. Check your local electrical code for detailed grounding instructions. Your system must be connected to a true earth ground. 1. Pump: ground the pump by connecting a ground wire and clamp as described in your separate pump instruction manual. 2. Air compressors and hydraulic power supplies: ground the equipment according to the manufacturer’s recommendations. 3. Electrostatic A...
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