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Graco 17M359 - User Manual

Graco 17M359
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For portable spray applications of water-based and oil-based
non-flammable architectural paints and coatings only.
Not approved for use in explosive atmospheres or hazardous locations.
844-241-9499
ti29707a
3A4433B
EN
Important Safety Instructions
Read all warnings and instructions in this manual and on the unit. Be familiar with the
controls and the proper usage of the equipment. Save these instructions.
FIRE AND EXPLOSION HAZARD
Use only non-flammable or water-based
materials, or non-flammable paint thinners. Do
not use materials having flash points below
100°F (38°C). This includes, but is not limited to,
acetone, xylene, toluene, and naphtha. For
more information about your material, request
Safety Data Sheet (SDS) from the supplier.
Use oil-based materials outdoors or in a
well-ventilated indoor area with a flow of fresh air.
Operational video.
http://graco.com/hhsupport
Operation, Parts
Corded Airless
HandHeld Sprayers

Table of Contents

Questions and Answers

  • C
    cwilliamsAug 16, 2025
    What to do if my Graco 17M359 Paint Sprayer makes noise but won't spray?
    • G
      garciajamesAug 16, 2025
      If your Graco Paint Sprayer makes a sound but doesn't spray material, several issues could be the cause. First, ensure the Prime Pump/Spray knob is in the SPRAY position and the spray tip is also in the SPRAY position. Check if the speed control is set too low and increase it until the unit sprays. Refill the FlexLiner if the material level is low, and prime the pump. Other potential causes include a FlexLiner in the cup support, issues with the cup cover, the cup assembly not being properly locked, air in the FlexLiner, a clogged VacuValve, a dirty sprayer, improperly installed outlet valves, a clogged spray tip, debris in the paint, or a plugged pump filter. In some cases, it might indicate that the pump has reached the end of its life, or there is a locked rotor condition.
  • P
    Pamela HawkinsAug 19, 2025
    Why is my Graco 17M359 Paint Sprayer spraying poorly?
    • M
      Mark BarnesAug 19, 2025
      If your Graco Paint Sprayer is producing poor results, consider these possible causes and solutions: * A partially clogged spray tip: clear the clog. * Incorrect spray tip position: rotate the spray tip to the SPRAY position. * Using the wrong spray tip: install a different size spray tip. * A worn or damaged spray tip: replace the spray tip. * Aerated material: do NOT shake the material; stir it instead. * Material is too cold: warm the material. * Dirty or worn outlet valves: clean the outlet valves. * Pump at the end of its life: replace the pump assembly.
  • J
    Jeremy CollierAug 22, 2025
    What to do if my Graco 17M359 Paint Sprayer spray pattern spits?
    • J
      Jason WaltersAug 22, 2025
      If your Graco Paint Sprayer's spray pattern "spits" at the beginning or end, the issue might be due to excess material on the spray tip guard assembly or a partially clogged spray tip; clean the spray tip guard. Ensure the spray tip is fully inserted into the spray tip guard. A worn spray tip could also be the cause, so consider replacing it. Also, the sprayer may be dirty, so flush it. In some cases, the front valve may have reached the end of its life and needs replacement.
  • C
    Charles HunterAug 27, 2025
    Why does my Graco 17M359 Paint Sprayer spray tip drip after releasing the trigger?
    • D
      Deanna LopezAug 27, 2025
      If the spray tip of your Graco Paint Sprayer continues to drip or ooze material after the trigger is released, it could be due to a worn spray tip, so replace it. Also, ensure the spray tip is fully inserted into the spray tip guard.
  • A
    Anthony YatesAug 31, 2025
    What causes material leaks around the spray tip of Graco 17M359?
    • J
      jessica37Aug 31, 2025
      If material is leaking around the spray tip guard or spray tip handle of your Graco Paint Sprayer, the spray tip seal and seat may be damaged or not properly installed.
  • L
    Lisa BaileySep 3, 2025
    Why does my Graco 17M359 make no sound when I pull the trigger?
    • D
      debbie95Sep 3, 2025
      If your Graco Paint Sprayer makes no sound when the trigger is pulled, here are a few things to check. First, verify that the sprayer is receiving power. If the diagnostic light blinks once, the motor may have overheated; wait 20–30 minutes for it to cool down. Alternatively, the motor brushes could be worn, requiring motor replacement. If the diagnostic light blinks four times when the trigger is pulled, this indicates a locked rotor condition, and the pump and/or motor assembly should be replaced.
  • K
    Kevin BellSep 6, 2025
    Why won't my Graco 17M359 spray water but sprays paint?
    • C
      Caitlin WilsonSep 6, 2025
      If your Graco Paint Sprayer sprays paint but not water, ensure there is only one FlexLiner in the cup support. Verify the cup cover is correctly threaded and tightened to the cup support. Avoid flexing or pulling down on the cup support when evacuating air from the FlexLiner. Check for damage to the FlexLiner lip or cup cover gasket, and ensure they are free of debris and dried paint. In some cases, the pump may have reached the end of its life.
  • C
    Connie LarsonSep 9, 2025
    Why does my Graco 17M359 Paint Sprayer run intermittently or very slow?
    • G
      glenntoddSep 9, 2025
      If your Graco Paint Sprayer runs intermittently or very slowly, the issue might be due to fluid inside the sprayer; allow the sprayer to dry out completely.
  • J
    Jacob CarsonSep 12, 2025
    Why is the spray pattern too wide on my Graco 17M359 Paint Sprayer?
    • D
      Danielle MichaelSep 12, 2025
      If the spray pattern from your Graco Paint Sprayer is too wide, try moving the sprayer closer to the surface. It could also be that you are using the incorrect spray tip for the material you're applying; in this case, install a different size spray tip.
  • J
    Joshua VasquezNov 24, 2025
    How to fix uneven spray pattern with Graco 17M359?
    • H
      hdaughertyNov 24, 2025
      If you're experiencing an uneven spray pattern, tails, dripping/sagging, or a spray pattern that's too narrow with your Graco Paint Sprayer, several factors could be at play. You might be moving too fast or too slow while spraying; adjust your speed accordingly. A clogged spray tip can also cause these issues, so try unclogging or cleaning it. Ensure your speed control is properly adjusted. The material itself might be difficult to atomize, or it may need to be thinned. Also, consider the distance to the surface and switch to a different spray tip if needed. Dirty or worn outlet valves or a pump nearing the end of its life could also be the cause. Other factors include holding the trigger while changing direction, and worn or damaged spray tip. Adjust the speed control until the desired pa...

Summary

Important Safety Instructions

Models - Corded Airless Handheld Sprayers

Important User Information

Warnings and Safety Precautions

Grounding Requirements

Details the importance and procedure for proper grounding of the sprayer.

Extension Cord Usage

Guidelines on selecting and using appropriate extension cords for the sprayer.

Fire and Explosion Hazard Warnings

Highlights risks of fire and explosion from flammable fumes and static electricity.

Electric Shock Hazard Warnings

Details risks associated with electric shock and proper grounding procedures.

Skin Injection Hazard

Warns about high-pressure spray injecting toxins and causing serious bodily injury.

Equipment Misuse Hazards

Covers risks of death or serious injury from misusing the equipment.

Pressurized Aluminum Parts Hazard

Warns about chemical reactions and equipment rupture from incompatible fluids.

Toxic Fluid or Fumes Hazard

Details serious injury or death risk from toxic fluids or fumes.

Personal Protective Equipment (PPE)

Recommends wearing appropriate protective gear to prevent serious injury.

California Proposition 65 Warning

Notifies about chemicals known to cause cancer or reproductive harm.

Know Your Sprayer

Start Up Procedures

Pressure Relief Procedure

Explains how to safely relieve pressure in the sprayer before servicing or cleaning.

Starting a New Job

Provides initial steps for a new spraying job, including straining paint.

Install FlexLiner

Step-by-step instructions for installing the FlexLiner into the cup support.

Fill FlexLiner and Attach Cup Assembly

Details on filling the FlexLiner, securing the lid, and attaching the cup assembly.

Connect to Power and Prime Sprayer

Instructions for plugging in the sprayer and priming it with fluid.

Evacuate Air and Position Spray Tip

Steps to remove air from the system and ensure the spray tip is correctly positioned.

Sprayer Troubleshooting Tips

Common issues that may prevent spraying and suggested solutions.

Refilling the FlexLiner

Procedure for refilling the FlexLiner when the paint supply runs out.

How to Spray

Speed Control Adjustment

Explains how to adjust speed control for optimal spray pattern and reduced overspray.

Tip and Pressure Selection Guide

Provides guidance on selecting spray tips and pressures based on coatings.

Basic Spray Techniques

Basic techniques for holding the sprayer and aiming for an even finish.

Triggering the Sprayer

Instructions on when to pull and release the trigger relative to sprayer movement.

Aiming Sprayer Technique

Guidance on overlapping strokes and aiming the sprayer for uniform coverage.

Spray Pattern Quality

Describes what constitutes a good spray pattern and how to identify bad patterns.

Clearing a Clogged Spray Tip

Procedure to quickly clear particles or debris from the spray tip.

Clearing Clog - Final Steps

Final steps to clear a clogged tip, including repeating steps or replacing the tip assembly.

Cleanup Procedures

Cleaning the Sprayer

Step-by-step guide to clean the sprayer, including handling fluids and components.

Sprayer Cleaning - Fluid Cycles

Instructions for filling, cycling, and flushing the sprayer with cleaning fluid.

Sprayer Cleaning - Flushing and Tip Cleaning

Details on flushing the sprayer with cleaning fluid and cleaning the spray tip.

Cleaning Sprayer Components

Instructions for removing and cleaning spray tip, guard, and pump filter.

Cleaning the VacuValve

Procedure for cleaning the VacuValve components, including the air hole.

Storage Instructions

Prepare Sprayer for Storage

Steps to clean the sprayer and prepare it for long-term storage.

Apply Pump Armor and Store Sprayer

Instructions on using Pump Armor and storing the sprayer in a suitable environment.

Common Procedures

Spray Tip Installation

Step-by-step guide for safely installing spray tips and tip guards.

Flush a New Sprayer

Procedure to flush factory test material from a new sprayer before first use.

Flush New Sprayer - Filling and Assembly

Steps for filling the FlexLiner with cleaning fluid and assembling the cup.

Flush New Sprayer - Attaching and Priming

Instructions for attaching the cup assembly and priming the sprayer with cleaning fluid.

Flush New Sprayer - Flushing Cycles

Details on flushing cycles, including sprayer orientation and trigger operation.

Flush New Sprayer - Final Steps and Notes

Final flushing steps and important notes regarding sprayer performance and motor protection.

Reference Information

Spray Tip Selection Guide

Guidance on choosing spray tips based on fluid type, wear, and flow rate.

Understanding Fan Width

Explains fan width and how to select it for different spraying surfaces.

Understanding Tip Numbering

Explains how tip numbers relate to hole size and fan width.

Cleaning Fluid Compatibility

Information on compatible cleaning fluids for water-based and oil-based materials.

Static Grounding for Oil-Based Materials

Essential safety guidelines for grounding when using oil-based materials.

Maintenance

Cleaning Outlet Valves

Procedure for cleaning outlet valve assemblies to maintain sprayer performance.

Notes

Replacement Parts Identification

Replacement Parts List

A comprehensive list of replacement parts with part numbers and descriptions.

Troubleshooting Guide

Sprayer Diagnostics

Lists common sprayer problems, their causes, and solutions, including diagnostic light indicators.

Troubleshooting: No Material Spray

Diagnoses why the sprayer makes sound but no material is sprayed and provides solutions.

Troubleshooting: Spray Pattern Issues

Covers issues like spray tip not in position, clogged tip, or low material.

Troubleshooting: Poor Spray Results

Addresses issues like poor spray pattern, aerated material, and worn parts.

Troubleshooting: Intermittent Spray and Leaks

Covers intermittent spraying, leaks from cup threads, and other operational faults.

Spray Pattern Diagnostics

Analyzes common spray pattern issues like unevenness, tails, dripping, and narrow patterns.

Troubleshooting: Spray Pattern Width and Drips

Addresses spray patterns that are too wide, spit, drip, ooze, or leak.

Technical Specifications

Graco Limited Warranty

Graco Information and Ordering

Graco 17M359 Specifications

General IconGeneral
BrandGraco
Model17M359
CategoryPaint Sprayer
LanguageEnglish

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