Graco Inc 224400, 308131, 224200, PRO 4500sc manual Check the Electrical Grounding See Fig

Page 9

Installation

Check the Electrical Grounding (See Fig. 2)

WARNING

FIRE, EXPLOSION, AND

ELECTRIC SHOCK HAZARD

Megohmmeter P/N 241079 (AA-see Fig.

2)is not approved for use in a hazard- ous area. To reduce the risk of sparking, do not use the megohmmeter to check electrical grounding unless:

DThe gun has been removed from the

hazardous area;

DOr all spraying devices in the hazardous area are turned off, ventilation fans in the hazardous area are operating, and there are no flammable vapors in the area (such as open solvent con- tainers or fumes from spraying).

Failure to follow this warning could cause fire, explosion, electric shock and result in serious injury and property damage.

1.Have a qualified electrician check the electrical grounding continuity of the spray gun and air hose.

2.Turn the ES ON-OFF Lever to OFF. See Fig. 4, page 12, for the location of the lever.

3.Turn off the air and fluid supply to the gun. The fluid hose must not have any fluid in it.

4.Make sure the air hose (R) is connected and the hose ground wire is connected to a true earth ground.

5.Measure the resistance between the gun handle (BB) and a true earth ground (CC).

a.If using a black or grey air hose, use a me- gohmmeter (AA) to measure the resistance. Use an applied voltage of 500 minimum to 1000 volts maximum. The resistance should not exceed 2 megohms.

b.If using a red turbine air hose, use an ohmme- ter to measure the resistance. Resistance should not exceed 100 ohms.

6.If the resistance is greater than the maximum reading specified above for your hose, check the tightness of the ground connections and be sure the air hose ground wire is connected to a true earth ground. If the resistance is still too high, replace the air hose.

R

BB

AA

CC

0368B

Fig. 2

308131 9

Image 9
Contents Part No , Series B Air Spray Gun with two-finger trigger 308131Part No , Series B Air Spray Gun with four-finger trigger Read and Keep for Reference308131 Symbols Table of ContentsFIRE, EXPLOSION, and Electric Shock Hazard Pressurized Equipment Hazard Non-Hazardous Area InstallationHazardous Area KEYInstalling the System Ventilate the Spray BoothConnect the Air Line Refer to Fig Connect the Exhaust Tube Ground the SystemFIRE, EXPLOSION, Electric Shock Hazard Check the Electrical Grounding See Fig Page Operating Checklist Pressure Relief ProcedureOperation Filter the FluidSelecting a Fluid Nozzle and Air Cap Operating the Spray GunComponent Rupture Hazard Fine Adjustments of the Spray Gun Atomizing Air Valve AdjustmentDaily Care and Cleaning MaintenanceShutdown FIRE, EXPLOSION, and Electric Shock HazardProcedure Clean the Air Cap and Fluid NozzleFlush the Spray Gun Equipment neededTroubleshooting Spray Pattern TroubleshootingProblem Cause Solution Gun Operation Troubleshooting See Check the Electrical Grounding Electrical TroubleshootingElectrical Troubleshooting with SVR Test Gun Resistance See Fig Electrical TestsTest Resistor Stud Resistance See Fig Test Power Supply Resistance See FigService Prepare the Gun for ServiceAir Cap/Nozzle/Resistor Stud Replacement Electrode Needle Replacement Barrel Removal Fluid Packing Removal Fluid Packing Rod Repair Power Supply Adjustment Power Supply Removal and ReplacementBarrel Installation Turbine Alternator Removal ReplacementDetail Fan Air Adjustment Valve Repair45c 45a  45b  45d  41 45e Fluid Adjustment Assembly RepairAir Trigger Valve Repair Atomizing Air Valve Removal and ReplacementMoving Parts Hazard ES ON-OFF Valve Repair308131 Detail a PartsElectrostatic Air Spray Gun, with four-finger trigger Part No , Series BConductive Air Supply Hose black AccessoriesExtended Air Fitting Air Shutoff ValveSafety Warning Signs Grounding Clamp and WireFluid Hose Assemblies Nylon MegohmmeterGun System GUN SystemsManual Change Summary Technical DataCategory Data FCC ID JHI1Graco Standard Warranty Graco Phone NumberToll Free