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Graco Ultra MAX II 595 PC Pro - User Manual

Graco Ultra MAX II 595 PC Pro
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3A6491E
EN
Operation, Parts
Electric Airless
Sprayers
For portable airless spraying of architectural paints and coatings. For
professional use only. Not approved for use in explosive atmospheres or
hazardous locations.
490/495/595/650/395EU Models:
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, in related manuals, and on the unit
before using the equipment. Be familiar with the controls and the proper usage of the
equipment. Save these instructions.
Related Manuals
Gun – 3A6285 (Contractor PC) Pump – 334599
Use only genuine Graco replacement parts.
The use of non-Graco replacement parts may void warranty.

Table of Contents

Questions and Answers

  • A
    Alexandra LesterAug 16, 2025
    What to do if fluid is spitting from the gun of my Graco Ultra MAX II 595 PC Pro Paint Sprayer?
    • J
      Jeffrey McgrathAug 16, 2025
      If your Graco Paint Sprayer is spitting fluid from the gun, it could be due to a few reasons. There might be air in the pump or hose, so check and tighten all fluid connections, and cycle the pump slowly during priming. Another possibility is a partially clogged spray tip, which you should clear. Also, ensure that your fluid supply isn't low or empty, and refill it if necessary, then prime the pump.
  • L
    Lisa BlakeAug 21, 2025
    Why is my Graco Ultra MAX II 595 PC Pro pump difficult to prime?
    • T
      Tiffany PattersonAug 22, 2025
      If you're finding it difficult to prime your Graco Paint Sprayer, consider these potential causes. Air in the pump or hose can be a culprit, so check and tighten all fluid connections, and cycle the pump slowly during priming. A leaking intake valve can also make priming difficult; clean the intake valve, ensuring the ball seat is in good condition. Worn pump packings may also be the cause, and in that case, you would need to replace them. Lastly, ensure the paint isn't too thick, and thin it according to the supplier's recommendations.
  • A
    alishasantiagoAug 25, 2025
    How to fix excessive paint leakage into throat packing nut on my Graco Ultra MAX II 595 PC Pro?
    • T
      Tiffany ReynoldsAug 25, 2025
      If you notice excessive paint leakage into the throat packing nut of your Graco Paint Sprayer, there are a few possible reasons. The throat packing nut might be loose; remove the spacer and tighten the nut just enough to stop the leakage. Alternatively, the throat packings could be worn or damaged, requiring replacement. Also, the displacement rod might be worn or damaged, and would need to be replaced.
  • E
    ericcarterAug 27, 2025
    Why is the pump output low on my Graco Paint Sprayer?
    • R
      riddlelauraAug 27, 2025
      If the pump output is low on your Graco Paint Sprayer, several factors could be responsible. First, check if the spray tip is worn and replace it if necessary. A clogged spray tip can also reduce output, so relieve the pressure and clean it. Ensure that you have enough paint supply and reprime the pump. Inspect the intake strainer for clogs, and clean it if needed. Also, a clogged fluid or tip filter can cause this issue, so clean the filter. Finally, leaking from the prime valve can lead to low pump output, so repair the prime valve.
  • A
    Amanda ColeAug 30, 2025
    What to do if motor runs but pump does not stroke on Graco Paint Sprayer?
    • E
      Edwin WilsonAug 30, 2025
      If the motor runs but the pump doesn't stroke on your Graco Paint Sprayer, it could be due to a damaged connecting rod assembly, which would need replacement. Alternatively, the gears or drive housing might be damaged, requiring inspection and possible replacement.
  • V
    Veronica WhiteSep 1, 2025
    Why Graco Ultra MAX II 595 PC Pro Paint Sprayer does not run and the control board status light blinks 6 times?
    • V
      valentinesethSep 2, 2025
      If your Graco Paint Sprayer doesn't run at all and the control board status light blinks 6 times repeatedly, it could be due to the motor being hot or a fault in the motor thermal device. Allow the sprayer to cool down. If it runs when cool, address the cause of overheating by ensuring the sprayer is in a cooler location with good ventilation and that the motor air intake isn't blocked. If it still doesn't run, replace the motor. Make sure to check the thermal device connector at the control board and measure the resistance of the thermal device.
  • L
    lesliejohnsonSep 4, 2025
    Why does my Graco Paint Sprayer stop after running for a few minutes?
    • S
      Scott ChungSep 4, 2025
      If your Graco Paint Sprayer operates for only 5 to 10 minutes and then stops, the pump packing nut might be too tight. This restricts pump action and overloads the motor. Loosen the pump packing nut, and check for leaks around the throat. If necessary, replace the pump packings.
  • S
    Steven WalkerSep 7, 2025
    What to do if Graco Paint Sprayer does not run and control board blinks 5 times?
    • S
      Sharon YoungSep 7, 2025
      If your Graco Paint Sprayer doesn't run and the control board status light blinks 5 times repeatedly, the control might be commanding the motor to run, but the motor shaft isn't rotating. This could be due to a locked rotor, an open connection between the motor and control, a problem with the motor or control board, or excessive motor amp draw. Remove the pump and try to run the sprayer. If the motor runs, check for a locked or frozen pump or drive train. If it doesn't run, disconnect the motor connector(s) from the control board socket(s), ensuring the contacts are clean and secure. Then, spin the motor fan and restart the sprayer. If it runs, replace the control board.
  • B
    Brandon TorresSep 10, 2025
    How to troubleshoot basic electrical problems with Graco Ultra MAX II 595 PC Pro Paint Sprayer?
    • S
      Sandra LewisSep 10, 2025
      For basic electrical problems with your Graco Paint Sprayer, ensure the motor leads are securely fastened and properly mated. Replace any loose terminals and crimp them to the leads, ensuring they are firmly connected. Clean the circuit board terminals and securely reconnect the leads. Also, inspect the motor armature commutator for burn spots, gouges, or extreme roughness, and have a motor shop resurface the commutator if possible.
  • E
    Ellen MartinezSep 13, 2025
    What to do if Graco Ultra MAX II 595 PC Pro does not shut off and control board blinks 2 times?
    • M
      Mary ThomasSep 13, 2025
      If your Graco Paint Sprayer does not shut off and the control board status light blinks 2 times repeatedly, the control board may be faulty and needs to be replaced.

Summary

Important Safety Instructions

Models

Warnings

Grounding

Ensures safe operation by reducing risk of electric shock and fire from static sparks.

Fire and Explosion Hazard

Preventing fire and explosion by addressing flammable fumes and static electricity risks.

Skin Injection Hazard

Preventing serious injury from high-pressure spray injection and proper handling.

Other Safety Hazards

Covers electric shock, pressurized aluminum, moving parts, toxic fluids, and PPE risks.

Component Identification

Grounding

Power Requirements

Specifies voltage, frequency, and amperage requirements for different sprayer models.

Pressure Relief Procedure

Setup

Startup

Operation

Spray Tip Installation

Step-by-step guide for safely installing the spray tip and tip guard.

Clear Spray Tip Clog

Maintenance

Troubleshooting

Mechanical;Fluid Flow

Electrical

Sprayer Will Not Run

Technical Specifications

Graco Standard Warranty

Graco Ultra MAX II 595 PC Pro Specifications

General IconGeneral
TypeAirless Paint Sprayer
Max Pressure3300 PSI
Hose Length50 ft
Power SourceElectric
Voltage120 V
Amps15 Amps
Pump TypePiston Pump
Recommended Annual UseUp to 500 gallons/year
Recommended ApplicationsInterior/Exterior Painting, Staining, Priming

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