Graco 224200 Instructions-Parts List Manual
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Graco 224200 Instructions-Parts List Manual

Graco 224200 Instructions-Parts List Manual

Electrostatic air spray gun b series
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INSTRUCTIONS-PARTS LIST
This manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
INSTRUCTIONS
Model PRO 4500sct
Electrostatic Air Spray Gun
85 kV, MANUAL GUN
100 psi (7 bar, 0.7 MPa) Maximum Working Pressure
For use with Class I, Group D paint spray materials
Part No. 224200, Series B
Air Spray Gun with two-finger trigger
With 0.059 in. (1.5 mm) spray nozzle
Part No. 224400, Series B
Air Spray Gun with four-finger trigger
With 0.059 in. (1.5 mm) spray nozzle
NOTE: Any modification of genuine Graco parts or replacement of parts with non-Graco parts will void agency approvals.
U.S. PATENT NO. 4,290,091; 4,219,865; 4,497,447; 4,462,061; 4,660,774; 5,063,350; 5,080,289; D350,387
Patented 1986, 1987 Canada
Brevete 1986, 1987
U.K. PATENT NO. 2,147,158; 2,142,559B; 2,140,327B; 2,245,197B
Other U.S. and Foreign Patents Pending
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
Part No. 224200 shown
ECOPYRIGHT 1991, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001
308131
Rev. R
0365

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Summary of Contents for Graco 224200

  • Page 1 85 kV, MANUAL GUN 100 psi (7 bar, 0.7 MPa) Maximum Working Pressure For use with Class I, Group D paint spray materials Part No. 224200, Series B Air Spray Gun with two-finger trigger With 0.059 in. (1.5 mm) spray nozzle Part No.
  • Page 2 308131...

  • Page 3: Table Of Contents

    Symbols ........Warnings .
  • Page 4 FIRE, EXPLOSION, AND ELECTRIC SHOCK HAZARD Improper grounding, poor air ventilation, open flames, or sparks can cause a hazardous condition and result in a fire, explosion, or electric shock. D Electrostatic equipment must be used only by trained, qualified personnel who understand the requirements stated in this instruction manual.

  • Page 5: Warnings

    PRESSURIZED EQUIPMENT HAZARD Spray from the gun, hose leaks, or ruptured components can splash fluid in the eyes or on the skin and cause serious injury. D Do not point the spray gun at anyone or any part of the body. D Do not stop or deflect fluid leaks with your hand, body, glove, or rag.

  • Page 6: Installation

    B* C* Non-Hazardous Area The air supply to the gun must be electrically interlocked with the ventilators to prevent the power supply from operating without ventilating fans on. Main Air Supply Line B* Ventilation Fan Interlock Solenoid Valve C* Main Air Supply Shutoff Valve (bleed-type) Air &...

  • Page 7: Installing The System

    Installing the System WARNING FIRE, EXPLOSION, AND ELECTRIC SHOCK HAZARD Installing and servicing this equipment requires access to parts which may cause electric shock or other serious injury if work is not performed properly. D Do not install or service this equip- ment unless you are trained and qualified.

  • Page 8: Connect The Exhaust Tube

    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, page 6) 1.

  • Page 9: Check The Electrical Grounding

    Check the Electrical Grounding 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: D The gun has been removed from the hazardous area;...
  • Page 10 Notes 308131...

  • Page 11: Operation

    Pressure Relief Procedure WARNING PRESSURIZED EQUIPMENT HAZARD The system pressure must be manually relieved to prevent the system from starting or spraying acci- dentally. To reduce the risk of an injury from electric shock, accidental spray from the gun, splashing fluid, or moving parts, follow the Pressure Relief Procedure whenever you: D are instructed to relieve the pressure,...

  • Page 12: Selecting A Fluid Nozzle And Air Cap

    Fig. 4 Selecting a Fluid Nozzle and Air Cap WARNING PRESSURIZED EQUIPMENT HAZARD To reduce the risk of an injury, follow the Pressure Relief Procedure on page 11 before removing or installing a fluid nozzle and/or air cap. The gun is supplied with a 0.059 in. (1.5 mm) fluid nozzle, P/N 185158, and air cap, P/N 193033.
  • Page 13 Operating the Spray Gun (continued) 1. Follow the Operating Checklist on page 11. 2. To adjust the air cap for a vertical or horizontal spray pattern, first make sure the pressure is relieved. Then loosen the air cap retaining nut, and rotate the air cap as directed in Fig.

  • Page 14: Shutdown

    Shutdown WARNING PRESSURIZED EQUIPMENT HAZARD To reduce the risk of an injury, follow the Pressure Relief Procedure on page 11 whenever you stop spraying and whenever you are instructed to relieve pressure. Daily Care and Cleaning WARNING PRESSURIZED EQUIPMENT HAZARD To reduce the risk of an injury, follow the Pressure Relief Procedure on page 11 when you stop spraying, before cleaning or flushing the spray gun,...

  • Page 15: Clean The Air Cap And Fluid Nozzle

    Clean the Air Cap and Fluid Nozzle CAUTION Do not use metal tools to clean the air cap or spray tip holes as this could scratch them, and make sure the electrode wire is not damaged. Scratches in the air cap or spray tip or a damaged electrode wire can distort the spray pattern.

  • Page 16: Troubleshooting

    WARNING ELECTRIC SHOCK HAZARD Installing and servicing this equipment requires access to parts which may cause an electric shock or other serious injury if the work is not performed properly. Do not install or service this equipment unless you are trained and qualified.

  • Page 17: Gun Operation Troubleshooting

    Gun Operation Troubleshooting Problem Fluid leakage from the fluid packing area Air leakage from the front of the gun Fluid leakage from the front of the gun The needle is worn or damaged. “Orange Peel” finish Excessive spray fog No fluid sprays from the gun The equipment is covered with fluid The air cap is dirty Troubleshooting...

  • Page 18: Electrical Troubleshooting

    Electrical Troubleshooting Problem Cause Poor wrap-around The ES ON-OFF lever is in the OFF (O) position.* The distance between the gun and work- piece is incorrect. The parts are poorly grounded. The booth exhaust velocity is too high. The atomizing air pressure is too high. The fluid pressure is too high.

  • Page 19: Electrical Troubleshooting With Svr

    Electrical Troubleshooting with SVR NOTE: Additional gun troubleshooting can be done using the Remote Spraying Voltage Readout (SVRt). See Accessories to order the SVR and the RF transmitting power supply. Problem Cause Lower than normal voltage output Insufficient air pressure to the turbine alternator.

  • Page 20: Electrical Tests

    The performance and safety of the spray gun are directly affected by the condition of the electrical components contained inside the gun. The electrical tests below can be used to determine the condition of the power supply (18) and the resistor stud (22) as well as the continuity of the electrical path between the components.

  • Page 21: Test Power Supply Resistance

    Test Power Supply Resistance Remove the power supply (18) from the gun. See Power Supply Removal and Replacement, page 27. Remove the turbine alternator from the power supply. See Turbine Alternator Removal and Replacement, page 28. Measure the resistance from the power supply’s ground contact point (EE) to the contact inside of the power supply seal (B) [the conductive rubber contact may be slightly recessed into the seal].

  • Page 22: Service

    Prepare the Gun for Service WARNING ELECTRIC SHOCK HAZARD Installing and servicing this equipment requires access to parts that may cause electric shock or other serious injury if the work is not performed properly. Do not install or service this equipment unless you are trained and qualified.

  • Page 23: Electrode Needle Replacement

    Air Cap/Nozzle/Resistor Stud Replacement (continued) 6. Trigger the gun while installing the fluid nozzle (21) and resistor stud (22) assembly with the multi-tool (62). Tighten until the fluid nozzle seats in the gun barrel (1/8 to 1/4 turn past hand tight). 7.

  • Page 24: Barrel Removal

    Barrel Removal 1. Prepare the gun for service as instructed on page 2. Carefully loosen the nut (14) from the bracket/fluid fitting (16). Pull the tube (12) out of the fitting. Make sure both ferrules and the nut stay with the tube.

  • Page 25: Fluid Packing Removal

    Fluid Packing Removal 1. Prepare the gun for service as instructed on page 2. Remove the air cap assembly, fluid nozzle and resistor stud and electrode as instructed on page 3. Loosen the trigger screws (4) far enough to re- move the trigger (13).

  • Page 26: Fluid Packing Rod Repair

    Fluid Packing Rod Repair The fluid packing rod can be replaced as individual parts or as an assembly. The overall assembly is pre-adjusted at the factory. NOTE: Before installing the fluid packing rod into the gun barrel, make sure the internal surfaces of the barrel are clean.

  • Page 27: Power Supply Removal And Replacement

    Apply a very light coat of lubricant Do not expose to solvents Fig. 18 Power Supply Removal and Replacement NOTES: D To avoid a loss in electrostatic performance, inspect the gun handle power supply cavity for dirt or mois- ture. Clean the cavity with a clean, dry rag. D Do not expose seal (B) or gasket (18a) to solvents as solvent will damage them.

  • Page 28: Turbine Alternator Removal And Replacement

    Turbine Alternator Removal and Replacement NOTE: Replace turbine bearings after 2000 hours of operation. See your authorized Graco representative. 1. Prepare the gun for service as instructed on page 2. Remove the power supply from the gun handle as instructed on page 27. 3.

  • Page 29: Fan Air Adjustment Valve Repair

    Fan Air Adjustment Valve Repair 1. Prepare the gun for service as instructed on page 2. Place a wrench on the flats of the valve housing and remove it from the handle. See Fig. 20. NOTE: The fan air valve (43) can be replaced as an assembly or as individual parts.

  • Page 30: Fluid Adjustment Assembly Repair

    Fluid Adjustment Assembly Repair 1. Prepare the gun for service as instructed on page 2. Using a 14 mm socket wrench, remove the fluid adjustment assembly (45). See Fig. 21. 3. Turn the stem (45a) fully clockwise and remove the sleeve stop (45e). 4.

  • Page 31: Air Trigger Valve Repair

    Air Trigger Valve Repair 1. Prepare the gun for service as instructed on page 2. Using a 14 mm socket wrench, remove the fluid adjustment assembly (45), o-ring (23) and spring (44). See Fig. 21. CAUTION Clean all parts in non-conductive solvent compatible with the fluid being used, such as xylol or mineral spirits.

  • Page 32: Es On-Off Valve Repair

    ES ON-OFF Valve Repair 1. Prepare the gun for service as instructed on page 2. Loosen the set screw (24) with the 2 mm hex key (69) provided. Remove the lever (26) from the valve. See Fig. 23. WARNING MOVING PARTS HAZARD To reduce the risk of eye injury, be sure to wear safety glasses when removing or installing the retaining ring (47) as the...
  • Page 33 Notes 308131...

  • Page 34: Parts

    DETAIL A *28g *28d *28f *28e *28h 1, 75 29* 12 Part No. 224400 Only 308131 Parts 0601 See Detail A 18a{ REF. REF. 12 43e{ Item 18 includes items 18a to 18f Item 28 includes items 28a to 28h Item 37 includes items 37a and 37b Item 43 includes items 43b to 43h Item 45 includes items 45a to 45e...
  • Page 35 Part No. 224200, Series B Electrostatic Air Spray Gun, with two-finger trigger Part No. 224400, Series B Electrostatic Air Spray Gun, with four-finger trigger Ref.

  • Page 36: Accessories

    AIR LINE ACCESSORIES Conductive Air Supply Hose; black 100 psi (7 bar, 0.7 MPa) Maximum Working Pressure FM Approved; Color coded black; 0.315 in. (8 mm) ID; 1/4 npsm(f) x 1/4 npsm(f) left-hand thread 220444 6 ft (1.8 m) 218100 15 ft (5 m) 218101 25 ft (8 m)
  • Page 37 FLUID LINE ACCESSORIES Fluid Hose Assemblies (Nylon) 225 psi (14 bar, 1.4 MPa) Maximum Working Pressure FM Approved; 1/4 in. (6.35 mm) ID, 3/8 npsm(fbe) 215637 25 ft (8 m) 215638 50 ft (15 m) Fluid Hose Assemblies (Nylon) 500 psi (35 bar, 3.5 MPa) Maximum Working Pressure FM Approved;...
  • Page 38 GUN SYSTEMS Gun System 224637 With 36 ft (11 m) conductive air hose. Includes: Part No. Description 224200 PRO 4500sc ES Spray Gun 223071 Conductive Air Hose, 36 ft (11 m) 206199 Air Regulator with Gauge 106149 Air Filter 158491...

  • Page 39: Technical Data

    Category Data Gun Weight 34.3 oz (974 g) Gun Length 11.1 in (283 mm) Maximum Working 100 psi (7 bar, 0.7 MPa) Pressure Air Pressure 0–100 psi (0–7 bar, Operating Range 0–0.7 MPa) Fluid Pressure 0–100 psi (0–7 bar, Operating Range 0–0.7 MPa) Voltage Output 0–85 kV...

  • Page 40: Graco Standard Warranty

    Graco Standard Warranty Graco warrants all equipment manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale by an authorized Graco distributor to the original purchaser for use. With the exception of any special, extended, or limited warranty published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be defective.

This manual is also suitable for:

224400308131Pro 4500sc

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