Graco 290 PC Classic User Manual

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334567E

EN

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.

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.

Table of Contents

Questions and Answers:

A
Andrew WhiteAug 14, 2025
What to do if fluid is spitting from my Graco Paint Sprayer gun?
- M
  michelle24Aug 14, 2025
  If your Graco Paint Sprayer is spitting fluid, it could be due to a few reasons. There might be air in the pump or hose; check and tighten all fluid connections, and cycle the pump slowly during priming. Also, the spray tip could be partially clogged; clear the tip. Finally, the fluid supply might be low or empty; refill the fluid supply and prime the pump, checking the fluid supply often to prevent running the pump dry.
C
ctoddAug 17, 2025
Why is my Graco Paint Sprayer pump difficult to prime?
- P
  perezkathyAug 18, 2025
  If your Graco Paint Sprayer is difficult to prime, it could be due to several reasons. There might be air in the pump or hose. In this case, check and tighten all fluid connections and cycle the pump as slowly as possible during priming. Another cause might be a leaking intake valve. Clean the intake valve, ensuring the ball seat is not nicked or worn and that the ball seats well; then, reassemble the valve. Also, worn pump packings can cause priming issues; in this case, replace the pump packings. Finally, if the paint is too thick, thin it according to the supplier's recommendations.
D
Danielle DanielsAug 21, 2025
How to fix excessive paint leakage into the throat packing nut of my Graco 290 PC Classic Paint Sprayer?
- S
  Sharon JonesAug 21, 2025
  If your Graco Paint Sprayer experiences excessive paint leakage into the throat packing nut, it could be because the throat packing nut is loose. Remove the throat packing nut spacer and tighten the throat packing nut just enough to stop the leakage. Another possibility is that the throat packings are worn or damaged, in this case replace packings. In other case, the displacement rod is worn or damaged, in this case replace the rod.
B
brockstephanieAug 27, 2025
What to do if the motor runs but the pump doesn't stroke on my Graco Paint Sprayer?
- T
  thomasyoderAug 27, 2025
  If your Graco Paint Sprayer motor runs but the pump does not stroke, it could be due to a damaged connecting rod assembly. In this case, replace the connecting rod assembly. Another possible cause is damaged gears or drive housing. Inspect the drive housing assembly and gears for damage and replace if necessary.
A
Alyssa ReedAug 31, 2025
Why does my Graco 290 PC Classic Paint Sprayer stop after running for only 5 to 10 minutes?
- J
  Juan BlairAug 31, 2025
  If your Graco Paint Sprayer operates for only 5 to 10 minutes and then stops, the pump packing nut might be too tight. When the pump packing nut is too tight, the packings on the pump rod restrict pump action and overload the motor. Loosen the pump packing nut and check for leaks around the throat. If necessary, replace the pump packings.
K
Kent ThompsonSep 3, 2025
What to do if my Graco Paint Sprayer will not shut off after reaching maximum pressure?
- T
  tmckeeSep 3, 2025
  If your Graco Paint Sprayer will not shut off after reaching or exceeding maximum pressure, check the pressure control. Disconnect the pressure control; if the sprayer still runs, replace the control board. If the sprayer stops, replace the pressure control.
K
Kayla HarrisSep 7, 2025
Why does my Graco Paint Sprayer not run at all?
- J
  Joy AlvarezSep 7, 2025
  If your Graco Paint Sprayer does not run at all, check the electrical supply, pressure control connections, pressure control, replaceable fuse, and motor leads. Ensure that there is AC voltage: 100-130V for 110-120VAC models or 210-255V for 230VAC models.
B
bmillerSep 9, 2025
How to troubleshoot basic electrical problems with my Graco 290 PC Classic?
- C
  Christian DouglasSep 10, 2025
  For basic electrical problems with your Graco Paint Sprayer, ensure the motor leads are securely fastened and properly mated. Replace loose terminals and crimp them to the leads, ensuring they are firmly connected. Clean the circuit board terminals and securely reconnect the leads.

Graco 290 PC Classic Specifications

General

Brand	Graco
Model	290 PC Classic
Category	Paint Sprayer
Language	English

Summary

Important Safety Instructions

Warnings

Grounding

Explains grounding requirements for electrical safety and to prevent static.

Fire and Explosion Hazard

Details hazards related to flammable materials and ignition sources.

Skin Injection Hazard

Warns about high-pressure fluid injection and necessary precautions.

Electric Shock Hazard

Emphasizes grounding and proper electrical connections to prevent shock.

Equipment Misuse Hazard

Outlines risks associated with improper use and handling of the equipment.

Component Identification

Grounding

Power Requirements

Specifies electrical power needs for different models.

Pressure Relief Procedure

Setup

Startup

Operation

Spray Tip Installation

Clear Tip Clog

Cleanup

Spray

Maintenance

Troubleshooting

Mechanical/Fluid Flow

Lists common mechanical and fluid flow problems and solutions.

Electrical

Addresses electrical issues, including the sprayer not running or shutting off.

Sprayers Parts

Wiring Diagrams

Technical Specifications

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