warning - Graco Inc.

InstallationGeneral InformationNOTE: Reference numbers and letters in parenthesesin the text refer to the callouts in the figures and theparts drawing.NOTE: Always use Genuine Graco Parts and Accessories,available from your Graco distributor.GroundingWARNINGFIRE AND EXPLOSION HAZARDBefore operating the pump, ground thesystem as explained below. Also readthe section FIRE AND EXPLOSIONHAZARD on page 4.1. Pump: use a ground wire and clamp as shown inFig. 1. Loosen the grounding lug locknut (W) andwasher (X). Insert one end of a 12 ga (1.5 mm)minimum ground wire (Y) into the slot in lug (Z)and tighten the locknut securely. Connect the otherend of the wire to a true earth ground. Order PartNo. 237569 Grounding Clamp and Wire.2. Air and fluid hoses: use only electrically conductivehoses with a maximum of 500 feet (150 m) combinedhose length to ensure grounding continuity.Check the electrical resistance of your air and fluidhoses at least once a week. If the total resistanceto ground exceeds 29 megohms, replace the hoseimmediately.NOTE: Use a meter that is capable of measuringresistance at this level.3. Air compressor: follow manufacturer’s recommendations.4. Spray gun or dispensing valve: ground throughconnection to a properly grounded fluid hose andpump.5. Object being sprayed: follow your local code.6. Fluid supply container: follow your local code.7. Solvent pails used when flushing: follow your localcode. Use only metal pails, which are conductive,placed on a grounded surface. Do not place thepail on a nonconductive surface, such as paper orcardboard, which interrupts the grounding continuity.8. To maintain grounding continuity when flushing orrelieving pressure, hold a metal part of the spraygun firmly to the side of a grounded metal pail,then trigger the gun.Fig. 1YWAir Motor IcingXZ0864Moisture in the compressed air can collect in the airmotor and freeze, causing the motor to stall. This iscalled icing. If icing occurs, shut off the air supply andallow the ice to thaw.To minimize icing, reduce the moisture in your compressedair supply by using an air dryer or a filterwhich traps water.The main air line should slope slightly downward sowater will collect at the end of the line, where it can bedrained. Additionally, plumb a drop line from the top ofeach main air line. Install an automatic drain or a drainvalve at the bottom of each drop.For additional help in designing your system, contactyour Graco distributor.3070495