Table of Contents
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Operation, Parts
Electric Airless
Sprayers
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. Be familiar with
the controls and the proper usage of the equipment. Save these instructions.
Gun – 311861 (Contractor/FTx) 312830 (SG3)
Use only genuine Graco replacement parts.
The use of non-Graco replacement parts may void warranty.
Related Manuals
334567E
Pump – 334599
EN
ti25126a
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Table of Contents
Related Manuals for Graco NOVA 390 PC
Summary of Contents for Graco NOVA 390 PC
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Page 1: Important Safety Instructions
Read all warnings and instructions in this manual and related manuals. Be familiar with the controls and the proper usage of the equipment. Save these instructions. Related Manuals Gun – 311861 (Contractor/FTx) 312830 (SG3) Pump – 334599 ti25126a Use only genuine Graco replacement parts. The use of non-Graco replacement parts may void warranty. -
Page 2: Table Of Contents
Graco Standard Warranty ........ -
Page 3: Models
Models Models Hi-Boy Lo-Boy Stand Model 390 PC 17C310 17C313 NOVA 390 PC 826195 110474 Certified to CAN/CSA C22.2 No. 68 Conforms to UL 1450 Mexico/Central 190 PC Express 17D899 America 190 PC Express 17D900 South America 190 PC Express... -
Page 4: Warnings
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. -
Page 5: Fire And Explosion Hazard
Use Graco conductive or grounded high-pressure airless paint sprayer hoses. •... - Page 6 • Check hoses and parts for signs of damage. Replace any damaged hoses or parts. • This system is capable of producing 3300 psi. Use Graco replacement parts or accessories that are rated a minimum of 3300 psi. • Always engage the trigger lock when not spraying. Verify the trigger lock is functioning properly.
- Page 7 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. •...
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Page 8: Component Identification
Component Identification Component Identification Stand Models ti24091a M Drain Tube ON/OFF Switch Fluid Intake Pressure Control Pump Prime Valve Fluid Outlet Tip Guard Power Cord Wrap Spray Tip Filter Finger Guard / TSL Fill Point Airless Hose Model/Serial Tag (Not shown, located Power Cord on bottom of unit.) Trigger Lock... -
Page 9: Lo-Boy Models
Component Identification Lo-Boy Models ti24093a Trigger Lock ON/OFF Switch M Drain Tube Pressure Control Fluid Intake Prime Valve Pump Tip Guard Fluid Outlet Spray Tip Filter Finger Guard / TSL Fill Point Airless Hose Model/Serial Tag (Not shown, located Power Cord on bottom of unit.) 334567E... -
Page 10: Hi-Boy Models
Component Identification Hi-Boy Models ti24092a M Drain Tube ON/OFF Switch Fluid Intake Pressure Control Pump Prime Valve Fluid Outlet Tip Guard Hanger Spray Tip Filter Finger Guard / TSL Fill Point Airless Hose Pail Hook Power Cord Model/Serial Tag (Not shown, located Trigger Lock on bottom of unit.) 334567E... -
Page 11: Grounding
Grounding Grounding grounding continuity. 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. -
Page 12: Pressure Relief Procedure
Pressure Relief Procedure Pressure Relief Procedure Turn pressure control to lowest setting. Follow the Pressure Relief Disengage the trigger lock. 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 ti25230a and moving parts, follow the Pressure... -
Page 13: Trigger Lock
Pressure Relief Procedure Put drain tube in a pail. Turn prime valve VERY SLOWLY loosen the tip guard retaining nut or the hose end down. Leave prime valve in down (drain) coupling to relieve pressure position until you are ready to spray gradually. -
Page 14: Setup
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. Connect Graco airless hose to fluid outlet. Use wrenches to tighten securely. ti24633a Use wrenches to tighten securely. - Page 15 Setup Remove tip guard. Squeeze bottle to dispense enough TSL to fill the space between the pump rod and packing nut seal. ti24592a When unpacking sprayer for the first ti24639a time remove packaging materials from inlet strainer. After long term storage Make certain ON/OFF switch is OFF.
- Page 16 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. ti24646a NOTE: New sprayers are shipped with 16. Hold a metal part of the gun firmly to a storage fluid that must be flushed out with grounded metal pail.
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Page 17: Startup
Startup Startup Increase pressure 1/2 turn to start motor. Allow paint to circulate through sprayer until paint flows out the drain tube. Perform Pressure Relief Procedure, page 12. Turn pressure control to lowest pressure. ti25231a Turn prime valve horizontal. Disengage trigger lock. - Page 18 Startup Hold gun against grounded metal waste pail. Trigger gun until paint appears. 20 s ti24649a ti24647a 10. Screw tip assembly onto gun and tighten. See Spray Tip Installation, Move gun to paint pail and trigger for 20 page 19. For gun assembly instructions, seconds.
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Page 19: Operation
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 Spray Spray test pattern. Adjust pressure to eliminate heavy edges. -
Page 20: Clear Tip Clog
Operation Use smaller tip size if pressure adjustment cannot eliminate heavy edges. Hold gun perpendicular, 10-12 in. (25-30 cm) from surface. Spray back and forth; overlap by 50%. ti24674a Engage trigger lock. Return Spray Tip to original position. Disengage trigger lock and continue spraying. -
Page 21: Cleanup
Operation Cleanup Perform Pressure Relief Procedure, page 12. Remove tip guard and Spray Tip. For additional information, see separate gun manual. ti24709a 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. - Page 22 Operation 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 Raise fluid intake above flushing fluid. ti24712a ti25232a Stop triggering gun. Move gun to waste pail, hold gun against pail, trigger gun to thoroughly flush system.
- Page 23 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.
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Page 24: Maintenance
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 Daily or each time you spray filter. -
Page 25: Troubleshooting
Troubleshooting Troubleshooting Mechanical/Fluid Flow Follow Pressure Relief Procedure, Check all possible problems and causes page 12, before checking or repairing. before disassembling the unit. What to Check What to Do If check is OK, go to next When check is not OK, Problem check refer to this column... - Page 26 Troubleshooting What to Check What to Do If check is OK, go to next When check is not OK, Problem check refer to this column Pump output is low Pump rod damage. Repair pump. See pump manual. Low stall pressure. Turn pressure knob fully clockwise.
- Page 27 Troubleshooting What to Check What to Do If check is OK, go to next When check is not OK, Problem check refer to this column Fluid is spitting from gun Air in pump or hose. Check and tighten all fluid connections.
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Page 28: Electrical
Troubleshooting Electrical Symptom: Sprayer does not run, stops Turn the ON/OFF switch OFF wait 30 running, or will not shut off. seconds and then turn power back ON again (this ensures sprayer is in normal run mode). Turn pressure control knob clockwise 1/2 turn. - Page 29 Troubleshooting Problem What to Check How to check Check motor rotation. 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.
- Page 30 Troubleshooting Problem What to Check How to check Check motor armature resistance. 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...
- Page 31 Troubleshooting Problem What to Check How to check Sprayer will not shut off after reaching Check pressure control. Disconnect pressure control, if or exceeding maximum pressure. sprayer still runs, replace control board. If the sprayer stops, replace pressure control. Basic electrical problems Motor leads are securely fastened Replace loose terminals;...
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Page 32: Sprayers Parts
Sprayers Parts Sprayers Parts Ref. Torque 140-160 in-lb (15.8 - 18.1 N•m) 30-35 in-lb (3.4 - 4.0 N•m) 23-27 in-lb (2.6 - 3.1 N•m) See page 42. ti24099a 334567E... - Page 33 Sprayers Parts Ref. Torque 140-160 in-lb (15.8 - 18.1 N•m) Hammer tight 23-27 in-lb (2.6 - 3.1 N•m) ti24098a 334567E...
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Page 34: 190, 290, 390 Stand Sprayers Parts List
Sprayers Parts 190, 290, 390 Stand Sprayers Parts List Ref. Part Description Qty. Ref. Part Description Qty. 24W640 ROD, connecting 115498 SCREW, mch, slot/hex, 24X020 GEAR, crankshaft wash hd includes 25 117501 SCREW, mach, slot 24W830 KIT, hose, cpld hex wash hd includes 132 117559 O-RING... -
Page 35: 390 Lo-Boy Sprayer Parts
390 Lo-Boy Sprayer Parts 390 Lo-Boy Sprayer Parts Ref. Torque 140-160 in-lb (15.8 - 18.1 N•m) 30-35 in-lb (3.4 - 4.0 N•m) 23-27 in-lb (2.6 - 3.1 N•m) See page 42. ti24101a 334567E... - Page 36 390 Lo-Boy Sprayer Parts Ref. Torque 140-160 in-lb (15.8 - 18.1 N•m) Hammer tight 23-27 in-lb (2.6 - 3.1 N•m) ti24100a 334567E...
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Page 37: 390 Lo-Boy Sprayer Parts List
390 Lo-Boy Sprayer Parts 390 Lo-Boy Sprayer Parts List Ref. Part Description Qty. Ref. Part Description Qty. NUT, push 115498 SCREW, mch, WASHER, shim, round slot/hex, wash hd ADAPTER, shaft 117501 SCREW, mach, slot hex wash hd See page CORD, power 117559 O-RING 246250... -
Page 38: 190, 290, 390 Hi-Boy Sprayers Parts
190, 290, 390 Hi-Boy Sprayers Parts 190, 290, 390 Hi-Boy Sprayers Parts Ref. Torque 140-160 in-lb (15.8 - 18.1 N•m) 30-35 in-lb (3.4 - 4.0 N•m) 23-27 in-lb (2.6 - 3.1 N•m) 23 12 See page 42. ti24103a 334567E... - Page 39 190, 290, 390 Hi-Boy Sprayers Parts Ref. Torque 140-160 in-lb (15.8 - 18.1 N•m) Hammer tight 23-27 in-lb (2.6 - 3.1 N•m) ti24102a 334567E...
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Page 40: Hi-Boy Sprayers Parts List
190, 290, 390 Hi-Boy Sprayers Parts 190, 290, 390 Hi-Boy Sprayers Parts List Ref. Part Description Qty. Ref. Part Description Qty. 117493 SCREW, mach, hex 115498 SCREW, mch, washer hd slot/hex, wash hd See page LABEL, front 117501 SCREW, mach, slot hex wash hd See page LABEL, side... -
Page 41: Accessories And Labels
Accessories and Labels Accessories and Labels Ref. 34 Ref. 65 Card, Ref. 63 Ref. 27 Ref. 53 Label, Medical Label, Hose, 1/4 Sprayer Ref. 28 Ref. 52 Label, Warning Alert Danger in. x Model Gun, Spray Label, Front Side 17C310... -
Page 42: Control Box And Filter
Control Box and Filter Control Box and Filter Ref. Torque 140-160 in-lb (15.8 - 18.1 N•m) 30-35 in-lb (3.4 - 4.0 N•m) 130-150 in-lb (14.7 - 16.9 N•m) 48-72 in-lb (5.4 - 8.1 N•m) ti25121a 334567E... -
Page 43: Control And Filter Parts List
Control Box and Filter Control and Filter Parts List Ref. Part Description Qty. Ref. Part Description Qty. 187625 HANDLE, valve, drain 104361 PACKING, o-ring 239914 VALVE, drain, includes 111600 PIN, grooved 5, 26 277364 GASKET, seat, valve 224807 BASE, valve 117501 SCREW, mach, hex See page... -
Page 44: Control And Filter Parts List
Control Box and Filter Control and Filter Parts List Ref. 38 Ref. 91 Ref. 97 Sprayer Ref. 15 Ref. 21 Pressure Ref. 56 Cord Set Ref. 150 Model Manifold Indicator Control Power Cord Adapter Screw Fuse 17C310 17C590 17C725 24X289 % 15J743... -
Page 45: Wiring Diagrams
Wiring Diagrams Wiring Diagrams 110/120V from Motor Red (+) 2 x Yellow Black (-) Replaceable Fuse Pressure Control Assembly ON/OFF Switch ti5643a Black Capacitor Power White Plug Green ti5643a 334567E... -
Page 46: 230V
Wiring Diagrams 230V From Motor 230V Model Pressure Red (+) 2X Yellow Control Black (-) Assembly Red (D) Black (E) ON/OFF Switch Capacitors Blue Black (F) Brown Red (H) Green Red MOV Power Plug ti22267a 334567E... -
Page 47: Technical Specifications
228 bar, 22.8 MPa Maximum Delivery 190 PC Classic, 190 PC Express 0.38 gpm 1.4 lpm 290/390 PC Classic, 390 PC, NOVA 390 PC, 0.47 gpm 1.8 lpm 190 PC Express (17C384) Maximum Tip Size 190 PC Classic, 190 PC Express 0.019... - Page 48 Technical Specifications 190/290/390 Metric @ 70 psi (0.48 MPa, 4.8 bar) Noise** (dBa) Sound pressure 90 dBa Sound power 100 dBa Materials of Construction Wetted materials on all models zinc- and nickel-plated carbon steel, nylon, stainless steel, PTFE, Acetal, leather, UHMWPE, aluminum, tungsten carbide, polyethylene, fluoroelastomer, urethane Notes...
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Page 49: Graco Standard Warranty
Graco’s written recommendations. This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by faulty installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of non-Graco component parts. -
Page 50: 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.