Operation, Parts Electric Airless Sprayers 334567B EN For professional use only. Not approved for use in explosive atmospheres or hazardous locations. For portable airless spraying of architectural paints and coatings. 190/290/390 PC Classic Models: 3000 psi (207 bar, 20.7 MPa) Maximum Working Pressure 3300 psi (228 bar, 22.8 MPa) Maximum Working Pressure See page 3 for additional model information. Important Safety Instructions Read all warnings and instructions in this manual and related manuals.
Contents Contents Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Component Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Stand Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Models Models Hi-Boy Stand VAC 110474 Certified to CAN/CSA C22.2 No.
Warnings Warnings The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific risks. When these symbols appear in the body of this manual or on warning labels, refer back to these Warnings. Product-specific hazard symbols and warnings not covered in this section may appear throughout the body of this manual where applicable.
Warnings FIRE AND EXPLOSION HAZARD Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help prevent fire and explosion: • Do not spray flammable or combustible materials near an open flame or sources of ignition such as cigarettes, motors, and electrical equipment. • Paint or solvent flowing through the equipment is able to result in static electricity. Static electricity creates a risk of fire or explosion in the presence of paint or solvent fumes.
Warnings SKIN INJECTION HAZARD High-pressure spray is able to inject toxins into the body and cause serious bodily injury. In the event that injection occurs, get immediate surgical treatment. • Do not aim the gun at, or spray any person or animal. • Keep hands and other body parts away from the discharge. For example, do not try to stop leaks with any part of the body. • Always use the nozzle tip guard. Do not spray without nozzle tip guard in place. • Use Graco nozzle tips.
Warnings ELECTRIC SHOCK HAZARD This equipment must be grounded. Improper grounding, setup, or usage of the system can cause electric shock. • Turn off and disconnect power cord before servicing equipment. • Connect only to grounded electrical outlets. • Use only 3-wire extension cords. • Ensure ground prongs are intact on power and extension cords. • Do not expose to rain. Store indoors.
Component Identification Component Identification Stand Models M U A B V R D S P K N J G F F L H ti24091a A B D F G H J K L 8 ON/OFF Switch Pressure Control Prime Valve Tip Guard Spray Tip Gun Airless Hose Power Cord Trigger Lock M N P R S U V Drain Tube Fluid Intake Pump Fluid Outlet Power Cord Wrap Filter Finger Guard / TSL Fill Point Model/Serial Tag (Not shown, located on bottom of unit.
Component Identification Lo-Boy Models A U S K B M V N D R P J G F L H ti24093a A B D F G H J K ON/OFF Switch Pressure Control Prime Valve Tip Guard Spray Tip Gun Airless Hose Power Cord 334567B L M N P R U V Trigger Lock Drain Tube Fluid Intake Pump Fluid Outlet Filter Finger Guard / TSL Fill Point Model/Serial Tag (Not shown, located on bottom of unit.
Component Identification Hi-Boy Models S T R A U B V D P K M N J G F F L H ti24092a A B D F G H J K L 10 ON/OFF Switch Pressure Control Prime Valve Tip Guard Spray Tip Gun Airless Hose Power Cord Trigger Lock M N P R S T U V Drain Tube Fluid Intake Pump Fluid Outlet Hanger Filter Finger Guard / TSL Fill Point Pail Hook Model/Serial Tag (Not shown, located on bottom of unit.
Grounding Grounding The equipment must be grounded to reduce the risk of static sparking and electric shock. An electric or static spark can cause fumes to ignite or explode. An improper ground can cause electric shock. A good ground provides an escape wire for the electric current. This sprayer includes a ground wire with an appropriate ground contact. The plug must be plugged into an outlet that is properly installed and grounded in accordance with all local codes and ordinances.
Pressure Relief Procedure Pressure Relief Procedure Follow the Pressure Relief Procedure whenever you see this symbol. This equipment stays pressurized until pressure is manually relieved. To help prevent serious injury from pressurized fluid, such as skin injection, splashed fluid and moving parts, follow the Pressure Relief Procedure whenever sprayer is stopped and before sprayer is cleaned or checked, and before equipment is serviced. 1. 3. Remove tip guard. ti24592a 4.
Pressure Relief Procedure 5. Hold a metal part of the gun firmly to a grounded metal pail. Trigger the gun to relieve pressure. 8. If you suspect the spray tip or hose is clogged or that pressure has not been fully relieved: a. VERY SLOWLY loosen tip guard retaining nut or hose end coupling to relieve pressure gradually. b. c. Loosen nut or coupling completely. Clear hose or tip obstruction.
Setup Setup 2. Connect other end of hose to gun. When unpacking sprayer for the first time or after long term storage perform setup procedure. When first setup is performed remove shipping plug from fluid outlet. 1. Connect Graco airless hose to fluid outlet. Use wrenches to tighten securely. ti24633a 3. Use wrenches to tighten securely. 4. Engage trigger lock.
Setup 5. Remove tip guard. b. Squeeze bottle to dispense enough TSL to fill the space between the pump rod and packing nut seal. ti24592a 6. When unpacking sprayer for the first time remove packaging materials from inlet strainer. After long term storage check inlet strainer for clogs and debris. ti24639a 8. Make certain ON/OFF switch is OFF. ti25130a 9. Plug power supply cord into a properly grounded electrical outlet. ti24638a ti24651a 7.
Setup 15. Turn prime valve horizontal. Disengage trigger lock. ti24608a 11. Place fluid intake with drain tube in grounded metal pail partially filled with flushing fluid. See Grounding, page 11. NOTE: New sprayers are shipped with storage fluid that must be flushed out with mineral spirits prior to using the sprayer. Check flushing fluid for compatibility with material that is to be sprayed. A secondary flush with a compatible fluid may be necessary.
Startup Startup 5. 1. Perform Pressure Relief Procedure, page 12. 2. Turn pressure control to lowest pressure. Increase pressure 1/2 turn to start motor. Allow paint to circulate through sprayer until paint flows out the drain tube. ti25231a 6. Turn prime valve horizontal. Disengage trigger lock. ti25230a 3. Turn ON/OFF switch to ON position. ti25129a 4. Place fluid intake in paint pail. Place drain tube in waste pail.
Startup 7. Hold gun against grounded metal waste pail. Trigger gun until paint appears. 20 s 1m ti24649a ti24647a 8. Move gun to paint pail and trigger for 20 seconds. Release trigger and allow sprayer to build pressure. Engage trigger lock. 10. Screw tip assembly onto gun and tighten. See Spray Tip Installation, page 19. For gun assembly instructions, see separate gun manual. High-pressure spray is able to inject toxins into the body and cause serious bodily injury.
Operation Operation Spray Tip Installation 3. Screw assembly onto gun. Tighten. 1. Perform Pressure Relief Procedure, page 12. 2. Use spray tip (A) to insert OneSeal™ (B) into tip guard (C). ti24652a C Spray B A 1. Spray test pattern. Adjust pressure to eliminate heavy edges. ti24653a 2. Insert Spray Tip. ti24669a ti24664a 334567B 2. Use smaller tip size if pressure adjustment cannot eliminate heavy edges. 3. Hold gun perpendicular, 10-12 in. (25-30 cm) from surface.
Operation ti24673a 4. Trigger gun after moving. Release trigger before stopping. For additional spraying information, see separate gun manual. Clear Tip Clog 1. ti24674a 2. Engage trigger lock. Return Spray Tip to original position. Disengage trigger lock and continue spraying. Release trigger. Engage trigger lock. Rotate Spray Tip. Disengage trigger lock. Trigger gun at waste area to clear clog.
Operation Cleanup 1. Perform Pressure Relief Procedure, page 12. 2. Remove tip guard and Spray Tip. For additional information, see separate gun manual. ti24709a 4. ti24592a 3. Place fluid intake in flushing fluid. Use water for water base paint and mineral spirits for oil-based paint. Place drain tube in waste pail. Remove fluid intake and drain tube from paint, wipe excess paint off outside. ti24710a 5. 334567B Turn prime valve horizontal.
Operation 6. Increase pressure 1/2 turn to start motor. Hold gun against paint pail. Disengage trigger lock. Trigger gun and increase pressure until the pump runs steady and flushing fluid appears. ti24713a 9. Raise fluid intake above flushing fluid. ti25232a ti24712a 7. Stop triggering gun. Move gun to waste pail, hold gun against pail, trigger gun to thoroughly flush system. 8. While continuing to trigger gun, turn prime valve down. Then, release gun trigger.
Operation 10. Turn prime valve horizontal. Trigger gun into flushing pail to purge fluid from hose. 11. Engage trigger lock. ti24718a 20 s 14. If flushing with water, flush again with mineral spirits or Pump Armor to leave a protective coating to prevent freezing or corrosion. ti24649a 12. Turn pressure control knob to the lowest pressure setting and turn ON/OFF switch to OFF position. Disconnect power to sprayer. ti24719a 15. Wipe sprayer, hose and gun with a rag soaked in water or mineral spirits.
Maintenance Maintenance Routine maintenance is important to ensure proper operation of your sprayer. Maintenance includes performing routine actions which keep your sprayer in operation and prevents trouble in the future. Activity Interval Inspect/clean sprayer filter, fluid inlet strainer, and gun filter. Daily or each time you spray Inspect motor shield vents for blockage. Fill TSL by adding through TSL fill point. Inspect motor brushes for wear. Brushes must be 1/2 in. (13mm) minimum length.
Troubleshooting Troubleshooting Mechanical/Fluid Flow 1. Follow Pressure Relief Procedure, page 12, before checking or repairing. Problem Pump output is low 2. Check all possible problems and causes before disassembling the unit. What to Check If check is OK, go to next check What to Do When check is not OK, refer to this column Spray tip worn. Follow Pressure Relief Procedure, page 12, then replace tip. See separate gun or tip manual. Spray tip clogged. Relieve pressure.
Troubleshooting Problem Pump output is low What to Check If check is OK, go to next check What to Do When check is not OK, refer to this column Pump rod damage. Repair pump. See pump manual. Low stall pressure. Turn pressure knob fully clockwise. Make sure pressure control knob is properly installed to allow full clockwise position. If problem persists, replace pressure control. Piston packings are worn or damaged. Replace packings. See pump manual. O-ring in pump is worn or damaged.
Troubleshooting Problem Fluid is spitting from gun Pump is difficult to prime Sprayer operates for 5 to 10 minutes then stops 334567B What to Check If check is OK, go to next check What to Do When check is not OK, refer to this column Air in pump or hose. Check and tighten all fluid connections. Cycle pump as slowly as possible during priming. Spray tip is partially clogged. Clear tip. See Clear Tip Clog, page 20. Fluid supply is low or empty. Refill fluid supply. Prime pump. See pump manual.
Troubleshooting Electrical Symptom: Sprayer does not run, stops running, or will not shut off. Perform Pressure Relief Procedure, page 12. 1. Plug sprayer into correct voltage, grounded outlet. Problem Sprayer does not run at all. 28 2. Turn the ON/OFF switch OFF wait 30 seconds and then turn power back ON again (this ensures sprayer is in normal run mode). 3. Turn pressure control knob clockwise 1/2 turn. Keep clear of electrical and moving parts during troubleshooting procedures.
Troubleshooting Problem What to Check Check motor rotation. How to check Perform a spin test by connecting a 9 –12 Volt battery to the motor leads. Motor leads may vary in style and size. Locate the two wires going to the carbon brushes normally Red and Black. Motor should spin when battery is connected to the motor leads. BLACK (-) RED (+) YELLOW ti25122a Check motor thermal switch. 9-VOLT BATTERY Motor should be at ambient temperature for this test.
Troubleshooting Problem What to Check Check motor armature resistance. How to check Connect the Red and Black leads from the motor to an Ohm meter. Rotate the motor while checking for opens. If an open is found replace the motor. - BLACK (-) RED (+) YELLOW 1-3 ohms ti25124a Check for motor short. Use an Ohm meter to check motor for shorts. Connect (–) meter lead to motor case. Move the (+) meter lead to each motor wire. Meter should read open on all wires.
Troubleshooting Problem What to Check How to check Sprayer will not shut off after reaching Check pressure control. or exceeding maximum pressure. Disconnect pressure control, if sprayer still runs, replace control board. If the sprayer stops, replace pressure control. Basic electrical problems Motor leads are securely fastened and properly mated Replace loose terminals; crimp to leads. Be sure terminal are firmly connected. Clean circuit board terminals. Securely reconnect leads.
Sprayers Parts Sprayers Parts Ref. Torque 1 140-160 in-lb (15.8 - 18.1 N•m) 2 30-35 in-lb (3.4 - 4.0 N•m) 2 95 23 12 53 63 54a 65 7 54c 54b 56 54 36 See page 42.
Sprayers Parts Ref. Torque 1 140-160 in-lb (15.8 - 18.1 N•m) 2 30-35 in-lb (3.4 - 4.
Sprayers Parts 190, 290, 390 Stand Sprayers Parts List Ref.
390 Lo-Boy Sprayer Parts 390 Lo-Boy Sprayer Parts Ref. Torque 1 140-160 in-lb (15.8 - 18.1 N•m) 2 30-35 in-lb (3.4 - 4.0 N•m) 2 12 53 63 54a 54 54c 65 7 54b 36 See page 42.
390 Lo-Boy Sprayer Parts Ref. Torque 1 140-160 in-lb (15.8 - 18.1 N•m) 2 30-35 in-lb (3.4 - 4.
390 Lo-Boy Sprayer Parts 390 Lo-Boy Sprayer Parts List Ref.
190, 290, 390 Hi-Boy Sprayers Parts 190, 290, 390 Hi-Boy Sprayers Parts Ref. 95 Torque 1 140-160 in-lb (15.8 - 18.1 N•m) 2 30-35 in-lb (3.4 - 4.0 N•m) 23 12 2 53 63 69 54a 54 7 54c 54b 36 56 67 2 See page 42.
190, 290, 390 Hi-Boy Sprayers Parts Ref. Torque 1 140-160 in-lb (15.8 - 18.1 N•m) 2 30-35 in-lb (3.4 - 4.
190, 290, 390 Hi-Boy Sprayers Parts 190, 290, 390 Hi-Boy Sprayers Parts List Ref. Part 7 SCREW, mch, slot/hex, wash hd 12 117501 SCREW, mach, slot hex wash hd 13 115099 WASHER 14 103413 PACKING, O-ring 22 COVER, front 17C540 Hi-Boy models 17C342, 17C343 17C539 Hi-Boy models 17C313, 17C349, 17C350, 17C351, 17C388 23 SHIELD, motor 15E341 Hi-Boy models 17C342, 17C343 15J371 Hi-Boy models 17C313,17C349, 17C350, 17C351, 17C388 25 180131 BEARING, thrust 27 See page HOSE, cpld, 1/4 in.
Accessories and Labels Accessories and Labels Sprayer Model Ref. 27 Hose, 1/4 Ref. 28 Ref. 52 in.
Control Box and Filter Control Box and Filter Ref. Torque 1 140-160 in-lb (15.8 - 18.1 N•m) 2 30-35 in-lb (3.4 - 4.0 N•m) 7 130-150 in-lb (14.7 - 16.9 N•m) 8 48-72 in-lb (5.4 - 8.
Control Box and Filter Control and Filter Parts List Ref.
Wiring Diagrams Wiring Diagrams 120V, US/Japan from Motor 2 x Yellow Red (+) Black (-) Replaceable Fuse Pressure Control Assembly ON/OFF Switch ti5643a Black Power Plug Capacitor White Green ti5643a 44 334567B
Wiring Diagrams 110V, UK / 230V from Motor Capacitor Red (+) Pressure Control Assembly 2 x Yellow Black (-) Replaceable Fuse ON/OFF Switch ti5857a Blue Brown Power Plug Green with Yellow Strip ti5857a 334567B 45
Technical Specifications Technical Specifications 190/290/390 US Sprayer Maximum fluid working pressure Maximum Delivery Maximum Tip Size Fluid Outlet npsm Cycles Generator Minimum 110–120V, A, Hz 220–240V, A, Hz Dimensions Height Stand Lo-Boy Hi-Boy Length Stand Lo-Boy Hi-Boy Width Stand Lo-Boy Hi-Boy Weight Stand Lo-Boy Hi-Boy 3000 psi 3300 psi 0.50 gpm 0.023 1/4 in. 700 per gallon 3000 W 46 207 bar, 20.7 MPa 228 bar, 22.8 MPa 1.9 lpm 0.023 6.3 mm 185 per liter 3000 W 1Ø, 13, 50/60 1Ø, 8, 50/60 21 in.
Technical Specifications 190/290/390 US Materials of Construction Wetted materials on all models Metric zinc- and nickel-plated carbon steel, nylon, stainless steel, PTFE, Acetal, leather, UHMWPE, aluminum, tungsten carbide, polyethylene, fluoroelastomer, urethane Notes * Startup pressures and displacement per cycle may vary based on suction condition, discharge head, air pressure, and fluid type. ** Sound pressure measured 3 feet (1 meter) from equipment. Sound power measured per ISO-3744.
Graco Standard Warranty Graco Standard Warranty Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale 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.
Graco Information For the latest information about Graco products, visit www.graco.com. For patent information, see www.graco.com/patents. TO PLACE AN ORDER, contact your Graco distributor or call 1-800-690-2894 to identify the nearest distributor. All written and visual data contained in this document reflects the latest product information available at the time of publication. Graco reserves the right to make changes at any time without notice. Original instructions. This manual contains English.
