Page 2 - WARNINGS; EQUIPMENT MISUSE HAZARD; General Safety; System Pressure; Pressure Relief Procedure; HAZARDOUS FLUID HAZARD; HOSE SAFETY
WARNINGS SERIOUS BODIL Y INJUR Y, EXPLOSION, FIRE, OR ELECTROST ATIC SHOCK CAN OCCUR IF THE PRECAUTIONS BELOW ARE NOT FOLLOWED. READ AND UNDERSTAND ALL INSTRUCTION MANUALS, T AGS, AND WARNING LABELS BEFORE OPERATING EQUIPMENT. ELECTROSTATIC EQUIPMENT SHALL ONLY BE USED BY TRAINED, QUALIFIED PERSONNE...
Page 3 - FIRE, EXPLOSION, OR ELECTROSTATIC SHOCK HAZARD; Grounding
308-084 3 FIRE, EXPLOSION, OR ELECTROSTATIC SHOCK HAZARD To reduce the risk of fire, explosion, or electrostatic shock, which may result from electrical discharge, it is essential that: S All parts of the electrostatic system are properly grounded. S All personnel in or close to the spray area are p...
Page 5 - Fig 1; BASIC SYSTEM; Spraying Voltage Monitor; Fig 2; Installing the System; ACCESSORIES
TYPICAL INSTALLATION Non-Hazardous Area Hazardous Area Fig 1 01769 Controls Cabinet Shut-off device for fluid only operation Bleed valve or 3 way solenoid Air Regulator Fan Atom Air Lines Grounded Turbine Air Hose (gray hose) P/N 223–068/–074 KV Hi/Lo Air Line (if low KV setting option is desired) T...
Page 6 - INSTALLATION
6 308-084 INSTALLATION WARNING Installing and servicing this equipment requires access to parts which may cause electrostatic shock or other serious bodily injury if work is not performed properly. Do not install or service this equipment unless you are trained and qualified. Be sure your installati...
Page 7 - To ensure a dry, clean air supply to the gun, install an air
INSTALLATION To ensure a dry, clean air supply to the gun, install an air line filter and an air and water separator on the air lines. Dirt and moisture can ruin the appearance of your fin- ished workpiece and can cause the gun to malfunction. A combination air filter/moisture separator is shown in ...
Page 8 - Check the Electrical Grounding; Install the Fabric Cover
INSTALLATION Check the Electrical Grounding (See Fig 7 ) WARNING Proper electrical grounding of every part of your system is essential. For your safety , read the warning section, FIRE, EXPLOSION, OR ELECTROSTATIC SHOCK HAZARD , on page 3. Ground the system as explained there. Then check your system...
Page 9 - OPERATION; Operating Checklist; Activating the Fluid Trigger Only
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 electrostatic shock, always follow this procedure when shutting off the system, when checking or servicing any part of the spray system...
Page 10 - Adjusting the Turbine Air Pressure; MAINTENANCE; Daily Care and Cleaning
10 308-084 OPERATION Adjusting the Turbine Air Pressure WARNING The fan and atomizing air MUST be on before turning on the turbine air . Actuating the turbine air without fan and atomizing air flow could damage the gun and may create hazardous operating conditions and result in serious injury and pr...
Page 11 - Clean the Air Cap and Fluid Nozzle; Pressure Relief Procedure Warning
308-084 11 MAINTENANCE Clean the Air Cap and Fluid Nozzle Equipment needed: Soft bristle brush (supplied) Solvent compatible with fluid being sprayed Procedure: 1. Follow the Pressure Relief Procedure Warning on page 9. 2. Remove the air cap assembly and gun shroud. 3. Clean the air cap, fluid nozzl...
Page 12 - Check for Fluid Leakage
12 308-084 MAINTENANCE Check for Fluid Leakage (See Fig 10 ) WARNING If any fluid leakage from the gun is detected, stop spraying IMMEDIATELY! Fluid leakage into the gun shroud could cause fire or explosion and result in serious bodily injury and property damage. During operation, periodically check...
Page 13 - SPRAY PATTERN TROUBLESHOOTING CHART
308-084 13 SPRAY PATTERN TROUBLESHOOTING CHART WARNING Installing and servicing this equipment requires access to parts which may cause electrostatic shock or other seri- ous bodily injury if the work is not performed properly. Do not install or service this equipment unless you are trained and qual...
Page 14 - GUN OPERATION TROUBLESHOOTING CHART; PROBLEM
14 308-084 GUN OPERATION TROUBLESHOOTING CHART Worn fluid rod packings or fluid rod Replace fluid rod packings or rod. See page 23. Fluid rod worn or damaged Replace fluid rod. See page 23. Worn fluid seat Replace fluid nozzle and/or electrode. See page 19 and 20. Piston seal or o-ring damaged Repla...
Page 15 - ELECTRICAL TROUBLESHOOTING CHART
308-084 15 ELECTRICAL TROUBLESHOOTING CHART PROBLEM CAUSE SOLUTION Improper distance between gun Adjust spraying distance to and workpiece 8 to 12 inches (203 to 305 mm). Parts poorly grounded Clean hangers, check for proper ground on conveyer or track. High booth exhaust velocity Reduce exhaust vel...
Page 16 - ELECTRICAL TESTS; Test Gun Resistance
ELECTRICAL TESTS The performance of the spray gun is 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 (40) and the resistor stud (2) as well as the continuity of the electri...
Page 17 - Test Resistor Stud Resistance; Stud Replacement
308-084 17 ELECTRICAL TESTS Test Resistor Stud Resistance (See Fig 13 ) Remove the resistor stud. See Air Cap/Nozzle/Resistor Stud Replacement . Check the resistance between the black resistor stud ring contact (D) and the needle con- tact ring (E). You may have to press down on the contact ring (D)...
Page 18 - SERVICE; Flush the Gun and Relieve Pressure
18 308-084 SERVICE WARNING Installing and servicing this equipment requires access to parts which may cause electrostatic 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. NOTE: Check all possib...
Page 19 - Replacement
308-084 19 SERVICE Air Cap/Nozzle/Resistor Stud Replacement CAUTION BE SURE to hold the front end of the gun up while removing the nozzle and resistor stud. This helps drain the gun and prevent any paint or solvent left in the gun from entering the air passages. 1. Point the front end of the gun up ...
Page 20 - Electrode Replacement; Stud
SERVICE Electrode Replacement 1. Remove the air cap, nozzle and resistor stud as described in Air Cap/Nozzle/Resistor Stud Replacement . 2. Unscrew and remove the fluid needle/electrode (28) with the electrode tool (47) provided. Be careful not to damage the contact wire. See Fig 17 . If the fluid r...
Page 21 - Barrel Removal; CAUTION
308-084 21 SERVICE Barrel Removal 1. Carefully loosen the fluid fitting nut (21). Pull the tube (19) out of the fitting. Make sure both ferrules and the nut stay with the tube. See Fig 19 . 2. Remove the jam nut (25) and actuator arm (29). NOTE: The fluid nozzle must be in place when removing or ins...
Page 22 - Barrel Installation
SERVICE Barrel Installation 1. Be sure the gaskets (23 & 40a) and spring (11) are in place. See Fig 20 . Replace if damaged. 2. Place the barrel (10) over the power supply (40) and onto the gun body (39). Make sure the fluid rod spring (11) is seated properly. 3. Tighten the three socket head ca...
Page 23 - Fluid Packing Rod Removal and Repair
308-084 23 SERVICE Fluid Packing Rod Removal and Repair NOTE: The fluid packing rod can be replaced as individual parts or as an assembly . If the assembly is purchased, it is pre-adjusted at the factory. 1. Remove the jam nut (25) and arm (29). See Fig 20 . 2. Remove the air cap assembly, fluid noz...
Page 25 - Power Supply Removal and Replacement
308-084 25 SERVICE Fig 23 KEY F 3-wire Connector G Potentiometer 10 Gun Barrel 13 Retainer Ring 27 Alternator 27a O-Ring 27b Cushion 39 Gun Body 40 Power Supply 40a Gasket 40b Pad 40c Pad 40d Seal 40e Cushion 39 13 27a 27b 40a 40 27 F 10 40b 40c 40e G 40d 0450 Power Supply Removal and Replacement RE...
Page 26 - SPRAY GUN SERVICE NOTES
SPRAY GUN SERVICE NOTES Lubricate Lubricate Apply high strength (red) Loctite or equivalent to threads. Lubricate Lubricate Tighten Resistor Stud into nozzle to 10 in-lbs (1.15 N m) Tighten Nozzle 1/8 to 1/4 turn past hand tight Torque Fitting to 25–35 in-lbs (2.8–4.0 N m) CAUTION: Do not damage Nee...
Page 27 - MANIFOLD SERVICE NOTES
308-084 27 MANIFOLD SERVICE NOTES 0434 0434 Press fit This end 8.5-8.9” (215-225 mm) from manifold surface when properly assembled Standard o-ring is Viton. Optional EPR o-ring is provided with the man- ifold for compatibility with ketone solvents. Must be clean Press fit Tighten until hex bottoms a...
Page 28 - SPRAY GUN PARTS DRAWING; DETAIL A
SPRAY GUN PARTS DRAWING DETAIL A 0433 See Detail A 3b 3 28 31 2 14 9 16 43 12 6 18 40e 40b 27a 27 27b 13 40c 40 40d 40a 23 22 42 15 10 36 30 19 25 29 REF 3 11 20 7 REF 19 21a 21b 5 21 39 36 17 1 4 8 32 24 41d 41j 41e 41g 41i 41b 41c 41h 41a 41f 41 REF NO. 3 Includes items 3a–3h 3a 3h 3c 3d 3e 0601 3...
Page 29 - SPRAY GUN PARTS LIST; Electrostatic Air Spray Gun, without shroud; with slotted shroud; WARNING; When servicing use only genuine Graco replacement
308-084 29 SPRAY GUN PARTS LIST Part No. 224–224 Automatic Electrostatic Air Spray Gun, without shroud Includes items 1–17, 19–52 Part No. 235–893, Series A Air Spray Gun, with standard shroud Includes items 1–52 Part No. 235–894, Series A Air Spray Gun, with slotted shroud Includes items 1–52 REF N...
Page 31 - Installing the PRO 4600HC Conversion Kit; sure Relief Procedure
308-084 31 PRO 4600HC CONVERSION KIT Part No. 237–301 PRO 4600HC Conversion Kit ; To convert the PRO 4600SC spray gun to the PRO 4600HC spray gun. The longer 20 in. (508 mm) fluid tube used by the HC gun provides increased spraying voltage when spray- ing highly conductive fluids. The kit must be or...
Page 32 - Color coded black; Grounded Air Supply Hose; Color coded gray More flexible than black hose; Grounded Air Supply Hose; Color coded red Stainless steel braid ground path; Fluid Drain Valve
ACCESSORIES Accessories must be purchased separately. Use only GENUINE GRACO PARTS AND ACCESSORIES. AIR AND FLUID LINE ACCESSORIESAir Pilot Paint Regulator 224–531 For controlling paint flow through the spray gun. Connects to mount assembly 235–094. 0331 Grounded Air Supply Hose 100 psi (7 bar) MAXI...
Page 33 - GUN CONTROL AND MONITORING
308-084 33 ACCESSORIES Accessories must be purchased separately. Use only GENUINE GRACO PARTS AND ACCESSORIES. GUN MOUNTING ACCESSORIESGun Mount Assembly 235–094 01875 Bracket for mounting to a 1/2 inch (12.7 mm) rod, with a slot for mount- ing the air pilot fluid regulator 224–531. Gun Mount Assemb...
Page 34 - Fiber Optic Cable Assembly; For connection between gun manifold and; Fiber Optic Cable Extender; For connection between gun manifold and bulkhead con-; Not for use in Hazardous areas.
ACCESSORIES Accessories must be purchased separately. Use only GENUINE GRACO PARTS AND ACCESSORIES. CABLE ACCESSORIESFiber Optic Cables Fiber Optic Cable Assembly For connection between gun manifold and display module or between bulkhead connector and display module. PART NO. LENGTH 224–680 6 ft (1....
Page 35 - Safety Warning Signs; Miscellaneous Changes:
Safety Warning Signs Available at no charge from Graco. Must be ordered separately. PART NO. DESCRIPTION 180–060 Warning Sign (English) 180–061 Warning Sign (French) 180–062 Warning Sign (German) 180–063 Warning Sign (Spanish) Paint Resistance Meter 722–886 Used with 722–860 Paint Probe to measure r...
Page 36 - THE GRACO WARRANTY AND DISCLAIMERS; WARRANTY; maintained in accordance with Graco’s written recommendations.; DISCLAIMERS AND LIMITATIONS; EQUIPMENT NOT COVERED BY GRACO WARRANTY; GRACO PHONE NUMBERS; TO PLACE AN ORDER; service repair infor-
36 308-084 THE GRACO WARRANTY AND DISCLAIMERS WARRANTY Graco warrants all equipment manufactured by it and bearing its name to be free from defects in material and workman- ship on the date of sale by an authorized Graco distributor to the original purchaser for use. As purchaser’s sole remedy for b...