1. Manuals
  2. Brands
  3. Graco Manuals
  4. Paint Sprayer
  5. PRO AA5500SC
  6. Instructions and parts list

Graco PRO AA5500SC Instructions And Parts List

Air-assisted airless spray gun
Hide thumbs Also See for PRO AA5500SC:
Table of Contents

Advertisement

Quick Links

Download this manual
INSTRUCTIONS–PARTS LIST
AUTOMATIC ELECTROSTATIC
Model PRO AA5500SC
Air-Assisted Airless Spray Gun
100 psi (7 bar) Maximum Working Air Pressure
3000 psi (207 bar) Maximum Working Fluid Pressure
For use with Class , Group D paint spray materials
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; 5,289,977
Patented 1986, 1987 Canada
Brevete 1986, 1987
U.K. PATENT NO. 2,147,158; 2,142,559B; 2,140,327–B
Other Foreign Patents Pending
Part No. 236–688, Series A
Complete Spray Gun: includes spray gun, shroud,
manifold, and mounting bracket
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
This manual contains important
warnings and information.
READ AND RETAIN FOR REFERENCE
COPYRIGHT 1994 GRACO INC.
308–387
Rev. A

Advertisement

Table of Contents
loading

Related Manuals for Graco PRO AA5500SC

Summary of Contents for Graco PRO AA5500SC

  • Page 1 Brevete 1986, 1987 U.K. PATENT NO. 2,147,158; 2,142,559B; 2,140,327–B Other Foreign Patents Pending Part No. 236–688, Series A Complete Spray Gun: includes spray gun, shroud, manifold, and mounting bracket GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441 COPYRIGHT 1994 GRACO INC.

  • Page 2: Table Of Contents

    ......Graco Phone Numbers ....

  • Page 3: Warnings

    WARNINGS High Pressure Spray Can Cause Serious Injury. For Professional Use Only. Serious injury, explosion, fire or electrostatic shock can occur if the precautions below are not followed. Read and understand all instruction manuals, tags, and warning labels before operating equipment. Electrical equipment shall only be installed, operated, and serviced by trained, qualified personnel who shall be fully conversant with the requirements stated within this instruction manual.
  • Page 4 Air compressors and hydraulic power supplies: ground according to the manufacturer’s recommendations. Use only non-sparking tools to clean residue from the booth PRO AA5500SC Electrostatic Air Spray Gun: obtain and hangers. grounding through connection to a properly grounded air supply hose. Use only the Graco Electrically Conductive Ventilate the Spray Booth Air Supply Hose;...
  • Page 5 General Safety System Pressure Any misuse of the spray equipment or accessories, such as The PRO AA5500SC electrostatic spray gun has a 3000 psi over pressurizing, modifying parts, using improper replace- (207 bar) Maximum Working Fluid Pressure and 100 psi (7 ment parts, using incompatible chemicals and fluids, or using bar) Maximum Working Air Pressure .

  • Page 6: Introduction

    (TA) through a and air spraying concepts. The spray tip shapes the Graco electrically conductive air hose. The air enters fluid into a fan pattern, as does a conventional airless the manifold and is directed to the inlet of the power spray tip.
  • Page 7 Introduction Manifold Tip Guard (orange) Manifold Back View Spray Retaining Shroud Mounting Bracket (orange) (orange)

  • Page 8: Installation

    Installing and servicing this equipment requires nents. For assistance in designing a system that is access to parts which may cause electrostatic customized for your application, contact your Graco shock or other serious injury if work is not per- representative.

  • Page 9: Air Line Accessories

    (displays gun voltage & current) Bulkhead F.O. Cable P/N 189–870 P/N 224–680/686 FIBER OPTIC–F.O. 4-20 mA Outputs PRO AA5500SC SPRAY GUN F.O. Cable P/N 224–670/676 85.0 KV ES Display Module P/N 189–762 (battery operated, displays gun voltage only) Fig. 2...

  • Page 10: Fluid Line Accessories

    (70.5 mm) Install a fluid regulator (J) on the fluid line to control fluid pressure to the gun. PRO AA5500SC Gun Warning Signs Mount warning signs in the spray area where they can easily be seen and read by all operators. An English Warning Sign is provided with the gun.

  • Page 11: Connect The Air And Fluid Lines To The Gun Manifold

    KV Select–KV Connect a 1/4” OD tube between fitting and solenoid. Fiber Optic–F.O. (Optional) Manifold Back View Connect Graco Fiber Optic Cable (see Accessories) , Fig. 5 Optional Fiber Optic Fitting An optional fiber optic fitting (124) is shipped, unas- sembled, with the gun.

  • Page 12: Check The Electrical Grounding

    Installation Check the Electrical Grounding (See Fig. 8 ) a. If using a black or grey grounded air hose (G), use a megohmmeter (L) to measure the resistance. Use an applied voltage of 500 mini- WARNING mum to 1000 volts maximum. Resistance Proper electrical grounding of every part of your should not exceed 2 megohms.

  • Page 13: Install The Fabric Cover

    Installation Install the Fabric Cover (See Fig. 9 ) 2. Route the exhaust tube (N) outside the cover. This enables you to monitor the exhaust tube for the 1. Install a fabric cover (M) over the front of the gun presence of any paint or solvent.

  • Page 14: Operation

    The card contains important information on what to do if a fluid injec- tion injury occurs. Additional cards are available at no charge from Graco.

  • Page 15: Selecting A Spray Tip

    Operation Selecting a Spray Tip Gun Functions The fluid output and pattern width depend on the size The gun functions are activated from a separate con- of the spray tip, the fluid viscosity, and the fluid pres- troller that sends the appropriate signal to the actuat- sure.

  • Page 16: Setting The Atomization Fluid Pressure

    Operation Setting the Atomization Fluid Pressure 3. With the turbine air (electrostatics) off and the atomization air off, spray a test pattern across a NOTE: Atomization fluid pressure will vary based on piece of paper, holding the gun 12 inches (305 the viscosity of the fluid, the flow rate desired, and oth- mm) from the surface.

  • Page 17: Activating And Adjusting The Electrostatics

    Operation Activating and Adjusting the Electrostatics NOTE: The gun’s normal high voltage reading is 60 to 70 kV. If a ball end high voltage measurement probe is WARNING used, the gun voltage will rise to about 85 kV. This will The atomizing air (A2) must be on before turn- happen with all resistive electrostatic guns.

  • Page 18: Maintenance

    Maintenance Daily Care and Cleaning CAUTION Clean all parts with a non-conductive solvent, com- WARNING patible with the fluid being sprayed. Conductive To reduce the risk of serious injury, including fluid solvents can cause the gun to malfunction. injection, splashing in the eyes or on the skin or electrostatic shock, always follow the Pressure Methylene chloride is not recommended as a flush- Relief Procedure Warning on page 14 when shut-...

  • Page 19: Flush The Spray Gun

    Maintenance Daily Care and Cleaning (continued) 3. Remove the retaining nut (1), tip guard (12), air cap (15), fluid tip (13), and gun shroud (2). See 1. Clean the fluid and air line filters daily. Fig. 16 . Set these parts aside. NOTE: You may have to turn the air cap with the 2.

  • Page 20: Clean The Spray Gun

    Maintenance Clean the Spray Gun 2. Dampen a soft cloth with solvent and wring-out the excess. Wipe the exterior of the gun and shroud Equipment needed: clean. See Fig. 18 . Soft bristle brush (supplied) Solvent compatible with fluid being sprayed Procedure: 1.
  • Page 21 Maintenance Clean the Spray Gun 7. Check the electrode wire. Replace it if it is bent or damaged. See page 32. (continued) WARNING 5. Clean the retaining nut, tip guard, air cap and fluid tip with a soft brush daily, minimum. See Fig. 20 . To reduce the risk of electrostatic shock or explo- Clean the parts with a soft brush and replace them sion, never operate the spray gun with a bent,...

  • Page 22: Check For Fluid Leakage

    Maintenance Check for Fluid Leakage (See Fig. 23 ) During operation, periodically check the manifold exhaust tube (N) and both ends of the gun shroud (Q) for the presence of fluid. Fluid in these areas would indicate fluid leakage into the shroud, which could be WARNING caused by leaks at the fluid tube connections or fluid If any fluid leakage from the gun is detected,...

  • Page 23: Troubleshooting

    Troubleshooting WARNING Installing and servicing this equipment requires access to parts which may cause electrostatic 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. To reduce the risk of serious injury, including fluid injection, splashing fluid or solvent in the eyes or on the skin, always follow the Pressure Relief Procedure Warning on page 14 before checking, adjusting, cleaning or re- pairing the gun or any part of the system.

  • Page 24: Gun Operation Troubleshooting

    Troubleshooting Gun Operation Troubleshooting PROBLEM CAUSE SOLUTION Leakage from fluid needle area Fluid needle packings loose Tighten packing nut; See page 36 Fluid needle packing damaged Replace fluid needle; See page 36 Air leakage from front of gun Piston air valve not seating properly Clean, Service;...

  • Page 25: Electrical Troubleshooting

    Troubleshooting Electrical Troubleshooting PROBLEM CAUSE SOLUTION Reduced fluid efficiency Improper distance between gun and Adjust spraying distance to 8 to 12 inches work-piece (203 to 305 mm) Parts poorly grounded Clean hangers; Check for proper ground on conveyer or track High booth exhaust velocity Reduce exhaust velocity within code limits Atomizing air pressure too high...

  • Page 26: Electrical Tests

    Electrical Tests Test Gun Resistance (See Fig. 24 ) The performance of the spray gun is directly affected by the condition of the electrical components contained Install spray tip, air cap, tip guard, and retaining ring on inside the gun. The electrical tests below can be used the gun.

  • Page 27: Test Power Supply Resistance

    Electrical Tests Test Power Supply Resistance (See Fig. If you still have problems, refer to Electrical Trouble- shooting for other possible causes of poor perform- 25 ) ance, or contact the nearest authorized service agency. Remove the power supply (27) from the gun body (29) as instructed on page 37.

  • Page 28: Test Barrel Resistance

    Do not replace the contact ring with anything but a genuine Graco The resistance should be 19 to 29 megohms. If the part.

  • Page 29: Flush The Gun And Relieve Pressure

    Service WARNING Flush the Gun and Relieve Pressure Installing and servicing this equipment requires WARNING access to parts which may cause electrostatic To reduce the risk of fire, explosion, or electrostatic shock or other serious injury if the work is not per- shock, be sure the turbine air (electrostatics) is off formed properly.
  • Page 30 Service Remove the Gun from the Manifold and CAUTION Mounting Bracket The piston return spring (105) is compressed between the manifold (101) and gun body when they are assembled. To avoid sudden movement of 1. Remove the retaining nut and air cap assembly (1, the gun, always loosen the bottom gun screw (21) 12, 13, 15) and the gun shroud (2).

  • Page 31: Tip Guard, Air Cap, Spray Tip, Or Seat Housing Replacement

    Do not replace the contact ring with anything but a genuine Graco part. 4. Install the seat housing (14) with the 9 mm driver (84). Tighten the seat housing until it’s snug and then tighten it 1/4 turn more;...

  • Page 32: Electrode Replacement

    Service Electrode Replacement WARNING To reduce the risk of fire, explosion, or electrostatic shock, do not operate the spray gun without the electrode (15a) installed in the air cap (15). 1. Remove the retaining nut (1), tip guard, (12), air cap (15), spray tip (13), and gun shroud (2) as instructed on page 31.

  • Page 33: Fluid Tube Removal & Replacement

    Service Fluid Tube Removal & Replacement Fluid Filter Replacement 1. Remove the retaining nut (1), tip guard, (12), air To remove the fluid tube assembly (18) for cleaning or cap (15), spray tip (13), and gun shroud (2) as replacement: instructed on page 31.

  • Page 34: Barrel Removal

    Service Barrel Removal 5. Hold the gun body (29) with one hand and pull the barrel (26) straight away from the body to remove 1. Remove the retaining nut (1), tip guard, (12), air it. See Fig. 36 . cap (15), spray tip (13), and gun shroud (2) as instructed on page 31.

  • Page 35: Barrel Installation

    Service Barrel Installation 5. Install the actuator arm (19) and jam nut (8), with the jam nut assembled flush to the end of the pis- ton rod. 1. Be sure the gaskets (11, 27a) and spring (20) are in place. See Fig. 37 . Replace if damaged. There should be about a 0.125 in.

  • Page 36: Fluid Packing Adjustment

    Service Fluid Packing Adjustment Fluid Needle Assembly Removal 1. Remove the retaining nut (1), tip guard, (12), air cap (15), spray tip (13), and gun shroud (2) as If fluid leaks from the fluid needle area, the fluid pack- instructed on page 31. ings may be loose.

  • Page 37: Power Supply Removal And Replacement

    NOTE: Replace turbine bearings after 2000 hours of 2. Grasp the power supply (27) with your hand. With operation. See your authorized Graco representative. a gentle side-to-side motion, being careful not to 1. Remove the power supply from the gun body as damage the power supply, pull the power supply described at left.

  • Page 38: Piston Repair

    Service Piston Repair 1. Remove the retaining nut (1), tip guard, (12), air cap (15), spray tip (13), and gun shroud (2) as instructed on page 31. 2. Remove the jam nut (8), actuator arm (19), and adjustment nut (17). See Fig. 41 . 3.

  • Page 39: Install The Gun Onto The Manifold

    Service Install the Gun onto the Manifold and 4. Connect the fluid hose to the fluid inlet fitting (3)– marked P1 on the manifold . Use an open end Mounting Bracket wrench to hold the fluid fitting hex and prevent it 1.

  • Page 40: Manifold Parts

    Manifold Parts Front View 03462 Apply low strength (purple) Loctite or equivalent to threads REF 101 Press fit & 103 Tighten until hex bottoms against manifold Left-hand threads Flush to outside surface Concave side toward manifold Replace every 300,000 cycles Back View...
  • Page 41 Manifold Parts WARNING Ref. Part No. Description Qty. When servicing use only genuine Graco replace- ment parts. Use of other parts or any modification 236–696 KV SWITCH of the gun could alter the grounding continuity of 189–365 KV CAP the gun or cause parts to rupture and result in seri- 110–078...

  • Page 42: Spray Gun Parts

    Spray Gun Parts Item 23 includes 23a–23g Item 25 includes 25a & 25b Item 27 includes 27a–27e REF 18 See page 41 to order parts...
  • Page 43 Spray Gun Parts WARNING Ref. Part No. Description Qty. Some PRO AA5500 Gun replacement parts look similar to other PRO Gun parts but are not interchangeable! 189–355 STEM, piston When servicing, do not mix or use other PRO Gun 189–747 PISTON parts that may look similar, but have different part 189–752...

  • Page 44: Accessories

    Accessories Use Only Genuine Graco Parts and Accessories AIR LINE ACCESSORIES Air Filter & Moisture Separator 106–148 250 psi (17.5 bar) Maximum Working Pressure Electrically Conductive Air Supply Hose For cleaning and drying air in air spray 100 psi (7 bar) Maximum Working Pressure system.
  • Page 45 Accessories Use Only Genuine Graco Parts and Accessories FLUID LINE ACCESSORIES GUN ACCESSORIES Fluid Filter 214–570 Spray Gun and Shroud Assembly 236–825 3000 psi (207 bar) Maximum Working Pressure With aluminum bowl and support Assembly includes the spray gun and shroud only.
  • Page 46 Accessories Use Only Genuine Graco Parts and Accessories GUN CONTROL AND MONITORING CABLE ACCESSORIES ACCESSORIES Fiber Optic Cable Assembly For more information about gun controls and monitoring accessories contact your Graco representative. For connection between gun manifold and display module or between bulkhead connector and display ES Display Module 189–762...

  • Page 47: Spray Tip Selection Chart

    Accessories Use Only Genuine Graco Parts and Accessories MISCELLANEOUS ACCESSORIES Paint Probe 722–860 Used with 722–886 Paint Resistance Meter to Grounding Clamp and Wire 222–011 measure resistance of paint. Not for use in 12 ga, 25 ft (7.6 m) wire Hazardous areas.

  • Page 48: Technical Data

    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 or two thousand hours of operation from time of sale, repair or replace any part of the equip- ment proven defective.

Table of Contents