Graco 220668, 220667, 220666, 237012, 220663, 237008, 237013, 237011 Pressurized Equipment Hazard

Page 11

Operation

7.If you are flushing:

a.Run the pump long enough to thoroughly clean the pump and hoses.

b.Close the fluid control device and air regulator

(D).

c.Remove the suction hose (S) from the solvent and place it in the fluid to be pumped.

8.If you are going to use the pump:

a.Start the pump. Be sure the suction hose is in the supply container.

b.If you are using this pump to spray fluid, re- lieve the pressure, then install a spray tip in the gun. Trigger the gun into a grounded metal waste container to prime the hose. Adjust the pump pressure just enough to completely at- omize the fluid. Higher pressures cause pre- mature spray tip and pump wear.

WARNING

PRESSURIZED EQUIPMENT HAZARD

To reduce the risk of a serious injury whenever you are instructed to relieve pressure, follow the Pres- sure Relief Procedure on page 10.

c.In a direct supply system, the pump will start and stop as the spray gun, dispensing valve, or fluid outlet valve is opened and closed.

d.In a circulating system, the pump runs continu- ously and speeds up or slows down as supply demands until the air supply is shut off.

C D C

CAUTION

Never allow the pump to run dry of fluid. A dry pump will accelerate to a high speed, possibly damaging itself. If your pump accelerates quickly, or is running too fast, stop it immediately and check the fluid supply. If the supply is empty and air has been pumped into the lines, refill the container and prime the pump and lines with fluid, or flush and leave filled with compatible solvent. Be sure to eliminate all air from the system. A Pump Runaway Valve, Part No. 224040, is available.

9.If you are shutting down the pump:

a.Flush the pump before shutting down, espe- cially if pumping a material that will set up.

b.Remove the suction hose from the fluid con- tainer and run the pump until the fluid is forced out of the system, then shut off the air supply immediately.

c.Relieve the pressure.

WARNING

PRESSURIZED EQUIPMENT HAZARD

To reduce the risk of a serious injury whenever you are instructed to relieve pressure, follow the Pres- sure Relief Procedure on page 10.

d.Refer to the Maintenance instructions on page 14.

E

S

Fig. 5

02323

 

307843 11

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Contents Electro-polished for use with waterborne coatings Instructions-Parts ListSeries Pumps Table of Contents Skin Injection Hazard Equipment Misuse Hazard Fire and Explosion Hazard General Information InstallationMounting the Pump Grounding Connect the Fluid Suction Line Connect the Fluid LinesVentilate the Air Exhaust Connect the Air LinesOperation Pressure Relief ProcedureStart and Adjust the Pump Applies only when using a spray gun or dispensing valvePressurized Equipment Hazard Symptom Probable Cause Test Procedure Remedy TroubleshootingTroubleshooting Tighten Threaded Connections MaintenanceCheck and Service the Lubricator, Regula- tor, and Filter Flush the Pump With Compatible SolventRepairing the Fluid Piston and Seal ServiceRepairing the Ball Check Valves Service 46 or Repairing the Air Motor and Piston 02327 Repairing the Air Control Valve 40c 40h 40f 40g 40b 40n Repairing the Pilot Valve 72 5h Parts For pump Model 237008 only For pump Model 220663 only52*51 7326 For pump Model 237011 only For pump Model 220666 onlyParts For pump Model 237009 only For pump Model 220664 only5026 For pump Model 237012 only For pump Model 220667 only02334 For pump Model 237010 only For pump Model 220665 only02335 For pump Model 237013 only For pump Model 220668 onlyRef No Air Control Valve Ref No Pilot Valve Repair and Conversion Kits 220948 SEAT, carbide 108822 Repair and Conversion Kits Filter, Regulator, Lubricator FRL Kit Filter, Regulator, Lubricator KitReturn Tube Drum Cover Kit and Return Tube KitDrum Cover Kit Return Tube KitSuction Kit Suction KitModel 220666 Technical Data, 400 Series PumpsPerformance Chart, 400 Series Pumps Model 220663Model 220667 Technical Data, 1200 Series PumpsPerformance Chart, 1200 Series Pumps Model 220664Model 220668 Technical Data, 2500 Series PumpsPerformance Chart, 2500 Series Pumps Model 220665Mounting Hole Layout Dimensional DrawingGraco Information Graco Standard Warranty