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INSTRUCTIONS–PARTS LIST

307–638

Rev. AE

Supersedes AD

This manual contains IMPORTANT

WARNINGS AND INSTRUCTIONS

READ AND RETAIN FOR REFERENCE

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

Model PRO4000

MANUAL MID–RANGE ELECTROSTATIC

AIR SPRAY GUN

7 bar (100 psi) MAXIMUM WORKING AIR and FLUID PRESSURE

GRACO INC.   P.O. BOX 1441  MINNEAPOLIS, MN  55440–1441

COPYRIGHT 1984, GRACO INC.

Summary of Contents for 218-026

Page 1: ...96 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 1023...

Page 2: ......

Page 3: ...Barrel Removal 20 Fluid Needle Packing Replacement 20 Power Cartridge Replacement 22 Turbine Alternator Removal 23 Fan Air Valve Replacement 24 Air Valve Replacement 24 ES On Off Valve Removal and Re...

Page 4: ...arts 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...

Page 5: ...ear gloves which insulate the hand from spray gun The gloves must be conductive or modified as shown on page 9 7 The floor of the spray area must be electrically conductive and grounded Do not cover t...

Page 6: ...Interlocked With Spray Booth Exhaust Fan T J The Typical Installation shown above is only a guide for selecting and installing electrostatic air spray systems It is not an actual system design The par...

Page 7: ...a bleed type air regulator G on the pump and gun air supply lines to control air pressure to the pump and gun 4 Install a bleed type air shutoff valve C E P on the main air line the pump line and each...

Page 8: ...rically conductive air hose BB connected see Connect the Air Line page 7 and properly grounded use a megohmmeter AA shown in ACCESSORIES section to measure the resistance between the gun handle Y and...

Page 9: ...Be sure all operators are trained how to prop erly and completely relieve system pressure 3 Be sure the system is thoroughly grounded See FIRE OR EXPLOSION HAZARD on page 5 and Check the Electrical Gr...

Page 10: ...03 for the appropriate flow rate for the air cap Start with the lowest rate shown and increase it until you get the desired flow rate 2 For fine adjustment use the adjusting knob Z lo cated at the rea...

Page 11: ...See Electrode Needle Replacement 5 Check all of the work hangers for build up of material clean them if necessary Clean the Air Cap and Fluid Nozzle CAUTION Do not use metal tools to clean the air ca...

Page 12: ...the Pressure Relief Procedure Warning on page 9 2 Disconnect and plug the fluid line 3 Connect the solvent supply to the gun 4 Flush the gun with solvent until it is clean 5 Follow the Pressure Relie...

Page 13: ...Tighten Fluid build up on air cap partially Clean with soft implement or clogged horn holes Full air pressure submerge in suitable solvent and wipe from clean horn hole forces fan pattern clean See p...

Page 14: ...fluid nozzle and or electrode See page 18 Fluid packing too tight Adjust packing screw See page 20 Loose fluid nozzle Tighten fluid nozzle See page 10 Fluid adjusting screw not set correctly Adjust sc...

Page 15: ...stud resistance See page 17 Faulty power supply resistance Check power supply resistance See page16 Faulty needle electrode assembly Replace needle electrode assembly See page 18 Faulty turbine alter...

Page 16: ...0 Test Gun Resistance NOTE 2 0 0 0 2 6 0 6 0 2 0 3 Electrical Troubleshooting Chart 0 Test Power Supply Resistance 1 2 0 Power Cartridge Replacement 1 0 2 0 6 4 Turbine Alternator Removal 0 2 0 4 2 0...

Page 17: ...17 ELECTRICAL TESTS Test Resistor Stud Resistance Electrical Troubleshooting Chart Electrode Replacement Electrode Replacement Resistor Stud Replacement Electrical Troubleshooting Chart KEY A FF GG 1...

Page 18: ...ing 0 2 2 NOTE Troubleshooting Charts CAUTION 4 2 0 1 0 1 4 2 0 1 0 0 Flush the Spray Gun 1 Pressure Relief Procedure Warning Electrode Replacement 0 2 33 4 Clean the Air Cap and Fluid Nozzle 1 0 1 1...

Page 19: ...5 1 0 05 0 01 0 1 3 3 0 4 05 0 3 0 3 05 0 2 0 5 1 66 7 Clean the Air Cap and Fluid Nozzle 2 0 0 Electrode Replacement 0 3 1 1 3 7 2 0 0 01 3 0 0 3 1 0 0 3 0 0 1 5 0 0 0 0 01 0 0 3 0 1 0 3 1 0 0 0 01 0...

Page 20: ...1 2 2 2 0 NOTE To install the barrel 18 follow the procedure below 4 0 1 1 1 1 1 0 1 1 1 Fig 12 Fig 13 KEY 19 20 30 1 59f KEY 2 3 1 18 46 Fluid Needle Packing Replacement 0 2 33 4 Clean the Air Cap an...

Page 21: ...justing screw on the packing assembly 45a slightly and retest Continue to adjust until the tolerance is correct 10 Install the entire fluid needle assembly 45 into the gun barrel from the back of the...

Page 22: ...trical components contained in the power cartridge Inspect the power cartridge cavity in the handle for dirt or moisture Clean out the cavity with a clean dry rag if necessary Lightly lubricate the o...

Page 23: ...from this value replace the alternator 4 Measure the resistance between each outer terminal of the 3 wire connector HH and the turbine alterna tor housing The resistance should be infinite If the resi...

Page 24: ...ng 26 and air valve 25 See Fig 21 CAUTION Clean all parts in non conductive solvent compat ible with the fluid being used such as xylol or min eral spirits Use of conductive solvents can cause the gun...

Page 25: ...to the Parts Drawing Unscrew and re move the fluid adjusting screw from the back of the gun handle Install the new assembly Muffler and Check Valve Replacement 1 Remove the screw 71 adapter retainer...

Page 26: ...yle parts 38 4 39 38 2 29 55 28 27 26 25 36 37 35 33 32 34 31 40 2a 80 77 81 45 30 5c 5b 5a 74 72 73 23 24 63 47 43 41 42 70 85 3a 3c 3b 78 13 83 84 14a 14c 14b 12 16 17 75 18a 58 19 20 22 71 21 Ref 8...

Page 27: ...103 648 O RING Viton 2 39 181 326 VALVE air 1 REF NO PART NO DESCRIPTION QTY 40 181 383 SEAL valve 1 41 177 128 SPACER 2 42 107 400 SCREW trigger 2 43 186 473 TRIGGER 1 45 222 256 FLUID NEEDLE ASSY In...

Page 28: ...Viton 2 46 179 387 GASKET housing 1 47 106 901 PACKING needle PTFE 1 Resistor Stud and Electrode Kit 220 391 Includes Ref No Part No Description Qty 12 181 824 ELECTRODE color coded black 1 16 220 92...

Page 29: ...ion HOW TO ORDER REPLACEMENT PARTS 1 To be sure you receive the correct replacement parts kits or accessories always give all of the information requested in the chart below 2 Check the parts list to...

Page 30: ...080 46 m 150 ft WARNING SIGNS Available from Graco at no extra charge Must be ordered separately 180 060 Warning Sign English 180 061 Warning Sign French 180 062 Warning Sign German 180 063 Warning S...

Page 31: ...from the ground when spraying conductive water base fluid CONDUCTIVE WATER BASE HOSE KIT 221 008 For converting gun to handle conductive water base flu ids See instruction manual 307 639 NOTE The inst...

Page 32: ...any defect in material or workmanship repairs will be made at a reasonable charge which charges may include the costs of parts labor and transportation DISCLAIMERS AND LIMITATIONS THE TERMS OF THIS W...

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