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Graco 218-026 Instructions-Parts List Manual

Manual mid–range electrostatic air spray gun e series
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INSTRUCTIONS–PARTS LIST
307–638
Rev. AE
This manual contains IMPORTANT
Supersedes AD
WARNINGS AND INSTRUCTIONS
READ AND RETAIN FOR REFERENCE
Model PRO4000
MANUAL MID–RANGE ELECTROSTATIC
AIR SPRAY GUN
7 bar (100 psi) MAXIMUM WORKING AIR and FLUID PRESSURE
Part Number 218–026, Series E
With 1.2 mm (0.047 in.) fluid nozzle, part no. 218–996
U.S. Patent No. 4,290,091; 4,219,865; 4,462,061; 4,497,447; 4,660,774
U.K. Patent No. 2,140,327B; 2,142,559B; 2,147,158; 2,191,423
Patented 1986, 1987 Canada
Brevete 1986, 1987
French Patent No. 84 07942; 84 10234
Japanese Patent No. 86 07416
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
COPYRIGHT 1984, GRACO INC.

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  • Page 1 INSTRUCTIONS–PARTS LIST 307–638 Rev. AE This manual contains IMPORTANT Supersedes AD WARNINGS AND INSTRUCTIONS READ AND RETAIN FOR REFERENCE Model PRO4000 MANUAL MID–RANGE ELECTROSTATIC AIR SPRAY GUN 7 bar (100 psi) MAXIMUM WORKING AIR and FLUID PRESSURE Part Number 218–026, Series E With 1.2 mm (0.047 in.) fluid nozzle, part no.

  • Page 3: Table Of Contents

    Terms ........Safety Warnings .

  • Page 4: Safety Warnings

    SAFETY WARNINGS SERIOUS BODILY INJURY, EXPLOSION, FIRE, OR ELECTRIC SHOCK CAN OCCUR IF THE PRECAUTIONS BELOW ARE NOT FOLLOWED. READ AND UNDERSTAND ALL INSTRUCTION MANUALS, TAGS, AND WARNING LABELS BEFORE OPERATING EQUIPMENT. ELECTROSTATIC EQUIPMENT SHALL ONLY BE USED BY TRAINED, QUALIFIED PERSONNEL WHO SHALL BE FULLY CONVERSANT WITH THE REQUIREMENTS STATED WITHIN THIS INSTRUCTION MANUAL.

  • Page 5: How The Electrostatic Air Spray Gun Works

    FIRE OR EXPLOSION HAZARD To reduce the risk of fire, explosion, or electric shock, which may result from electrical discharge, it is essential that: All parts of the electrostatic system are properly grounded. All personnel in or close to the spray area are properly grounded. All electrically conductive objects or devices in the spray area, includ- ing paint containers, wash cans and tools, are properly grounded.

  • Page 6: Typical Installation

    NON–HAZARDOUS AREA Power Supply Must Be Interlocked With Spray Booth Exhaust Fan. Main Air Supply Line Ventilation Fan Interlock Solenoid Valve Main Air Supply Shutoff Valve (bleed–type) Air & Water Separator Pump Air Supply Shutoff Valve (bleed–type) Air Line Lubricator Air Pressure Regulator Pump The Typical Installation shown above is only a guide for...

  • Page 7: Ventilate The Spray Booth

    Ventilate the Spray Booth WARNING To prevent hazardous concentrations of toxic and/or flammable vapors, spray only in a properly ventilated spray booth. Never operate the spray gun unless ventilation fans are operating. Check and follow all of the National, State and Local codes regarding air exhaust velocity requirements.

  • Page 8: Check The Electrical Grounding

    Check the Electrical Grounding WARNING Proper electrical grounding of every part of your system is essential. For your safety, read the warning section, FIRE HAZARD, on page 5. Ground the system as explained there. Then check your system as explained below. 1.

  • Page 9: Operation

    WARNING Pressure Relief Procedure To reduce the risk of serious bodily injury, including splashing in the eyes or on the skin, injury from moving parts or electric shock, always follow this procedure when shutting off the system, when checking or servicing any part of the spray system, when installing, cleaning or changing fluid nozzles, and whenever you stop spraying.

  • Page 10: Install The Fluid Nozzle And Air Cap

    Install the Fluid Nozzle and Air Cap WARNING To reduce the risk of serious bodily injury, including splashing in the eyes or on the skin or electric shock, always follow the Pressure Relief Proce- dure on page 9 before installing, or removing the fluid nozzle/air cap assembly.

  • Page 11: Maintenance

    Daily Care and Cleaning WARNING To reduce the risk of serious bodily injury, including splashing in the eyes or on the skin or electric shock, always follow the Pressure Relief Proce- dure Warning on page 9 when shutting off the sys- tem, when you stop spraying and before checking, servicing, installing, cleaning or changing any part in the system.

  • Page 12: Flush The Spray Gun

    Flush the Spray Gun WARNING To reduce the risk of fire or explosion and serious bodily injury, the ES ON–OFF lever must be OFF before flushing. 1. Follow the Pressure Relief Procedure Warning on page 9. 2. Disconnect and plug the fluid line. 3.

  • Page 13: Spray Pattern Troubleshooting Chart

    SPRAY PATTERN TROUBLESHOOTING CHART Installing and servicing this equipment requires access to parts which may cause electric shock or other serious bodily injury if the work is not performed properly. Do not install or service this equipment unless you are trained and qualified.

  • Page 14: Gun Operation Troubleshooting Chart

    GUN OPERATION TROUBLESHOOTING CHART PROBLEM CAUSE Leakage from fluid pack- Worn needle packing. ing nut. Air leakage from front of Air valve not seating properly. gun. Air stem packing too tight. Fluid leakage from Electrode worn or damaged. front of gun. Worn fluid seat.

  • Page 15: Electrical Troubleshooting Chart

    ELECTRICAL TROUBLESHOOTING CHART PROBLEM CAUSE Poor wrap–around. *ES ON–OFF lever in OFF position. Improper distance between gun and workpiece. Parts poorly grounded. High booth exhaust velocity. Atomizing air pressure too high. Fluid pressure too high. Fluid viscosity. Fluid resistivity too low. *Turbine alternator not operating (no audible whine).

  • Page 21: Service

    5. Carefully remove the fluid needle assembly (45) from the rear part of the gun barrel (18). See Fig 15. If the packing assembly (45a) or insulator (45g) are still in the barrel, insert the packing removal rod (59d) into the front of the barrel to gently push them out.

  • Page 22: Barrel Removal

    Gun Handle Alternator O–Ring Plug Power Supply O–Ring O–Ring Spring Barrel 18b Cushion Gasket NOTE: The power cartridge (3) Fig 17 Power Cartridge Replacement 1. Remove the barrel as described under Barrel Removal. 2. Remove the gasket (46) from the gun. See Fig 17. CAUTION The power cartridge is fragile.

  • Page 23: Turbine Alternator Removal

    Turbine Alternator Removal 1. Remove power cartridge from the gun handle as described under Power Cartridge Replacement. 2. Carefully twist the turbine alternator (3a) counter- clockwise and pull it off the power supply (5) until just disengaged from the coupling. Then continue to slowly pull the turbine alternator away from the power supply, disconnecting the 3-wire connector (HH).

  • Page 24: Fan Air Valve Replacement

    Fan Air Valve Replacement 1. Place a wrench on the flats of the valve housing (33) and remove it from the handle (2). See Fig 20. 2. Remove the retaining ring (31). 3. Rotate the air adjusting screw (34) counterclockwise until it is disengaged from the valve housing threads.

  • Page 25: Fluid Adjusting Screw Replacement

    ES ON–OFF Valve Removal & Replacement 1. Loosen and remove the nut (35). Remove the lever (37) and washer (36). See Fig 22. Insert the hex head wrench into the hex end of the valve (39), and turn it to loosen and remove the valve. 2.

  • Page 26: Parts Drawing

    Ref No 59, Tool Kit Includes items 59a–59h Ref No. 3 Power Cartridge Includes items 3a–3c & 5 17 * WARNING Old/New Style Resistor Stud and Electrode To reduce the risk of sparking, which could cause fire or explosion, BE SURE the electrode and stud you install are black.

  • Page 27: Parts List

    PART NO. DESCRIPTION 218–014 HANDLE, gun; Includes item 2a 179–400 .ADAPTER 218–111 POWER CARTRIDGE; Includes items 3a and 5 217–591 ALTERNATOR, turbine; Includes items 3b & 3c 107–106 .O–RING, buna-n 180–070 .PLUG 107–107 REGULATOR, disc 218–041 POWER SUPPLY; Includes items 5a–5c 177–156 .O–RING;...

  • Page 28: Repair Kits

    Use only GENUINE GRACO PARTS AND ACCESSORIES. When servicing use only genuine Graco replace- ment parts. Use of other parts or any alteration or modification of this equipment could result in serious injury, fire, explosion, or property damage. NOTE: The Ref. Nos. shown in the kits below correspond to the reference numbers used in the parts list on page 27. For the best results, use all the parts in the kit, even if the old parts still look good.

  • Page 29: Technical Data

    TECHNICAL DATA Weight ......Gun Length ..... Maximum Working Pressure .

  • Page 30: Accessories

    Use only GENUINE GRACO PARTS AND ACCESSORIES. NEVER operate your equipment at a working pressure rating that is higher than the lowest rated component in your system. Lower rated components may not be able to withstand the pressure developed by the pump and may rupture, causing serious bodily injury or property damage.
  • Page 31 FILTER (AIR OR PAINT) 202–271 52 bar (750 psi)MAXIMUM WORKING PRESSURE With 250 micron (60 mesh) element, 3/8 npt(f) inlet, 3/8 npt(m) outlet SPRAY SYSTEM ACCESSORIES 218–118 ELECTROSTATIC SYSTEM Includes items: 218–026 Manual Electrostatic Air Spray Gun 218–103 Grounded Air Supply Hose (See page 30 for specifications) 216–077 Fluid Hose (See page 30 for...

  • Page 32: Warranty

    THE GRACO PRO4000 WARRANTY AND DISCLAIMERS WARRANTY Graco warrants the PRO4000 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. As purchaser’s sole remedy for breach of this warranty, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment proven defective, with the exception of defects in the internal power supply and alternator, which will be repaired or replaced for thirty–six months from the date of sale.

This manual is also suitable for:

307-638Pro4000

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