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Graco A Series - User Manual

Graco A Series
36 pages
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- For Portable Spray Applications of Architectural Paints and Coatings -
- Not for Use in Explosive Atmospheres -
Model: 16J752, Series A, Series B
Maximum Working Pressure: 3000 psi (207 bar, 21 MPa)
Important Safety Instructions
Read all warnings and instructions in this
manual. Save these instructions.
ti17229a
Operation
3A1782D
EN
Use water-based or mineral spirit-type materials only.
Do not use materials having flash points lower than
100° F (38° C). This includes, but is not limited to, ace-
tone, xylene, toluene, or naptha. For more information
about your material, request MSDS from distributor or
retailer.

Table of Contents

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Questions and Answers

  • J
    Jennifer BlanchardNov 26, 2025
    What to do if the Graco Paint Sprayer engine runs but the displacement pump doesn't?
    • M
      Mark AndersenNov 26, 2025
      If your Graco Paint Sprayer's engine is running, but the displacement pump isn't working, consider these potential causes and solutions: * The flow control might be set incorrectly. Set it to PRIME mode. * The air supply to the air control or gun might not be connected. Check and tighten the connections. * The air compressor might not be on. Start the compressor. * The engine RPM might be too low. Increase the engine speed. * There could be an air leak at the pump foot valve or siphon tube elbow. Ensure the foot valve is tight and the seal in the elbow is in place and undamaged. * The tip might be clogged. Clean the tip. * There might be insufficient compressor air. Increase SCFM or compressor size; the system needs at least 30 psi to operate. * The displacement pump rod m...
  • C
    Clayton WebbSep 2, 2025
    Why is my Graco Paint Sprayer experiencing pressure imbalance?
    • L
      Lori FrancoSep 2, 2025
      A pressure imbalance in your Graco Paint Sprayer can occur due to plugged impingement ports or check valves, or unequal viscosities. Try cleaning the impingement ports and check valves. Also, adjust the temperature to compensate for viscosity differences.
  • L
    Lawrence MurrayAug 27, 2025
    What to do if I notice a sudden pressure loss in my Graco Paint Sprayer?
    • L
      Luis CostaAug 28, 2025
      If you experience a sudden pressure loss in your Graco Paint Sprayer, here’s what might be happening: * The system may have over-pressurized, causing the Pressure Drain Valve to open. Check for a plugged tip or hose and correct the issue, then restart the pump. * The air supply to the sprayer or gun might have stopped. Check and correct the air supply.
  • T
    Timothy PaulSep 14, 2025
    What to do if the sprayer operates, but the display does not on my Graco Construction Equipment?
    • J
      johnmonroeSep 14, 2025
      If the sprayer operates, but the display does not on your Graco Construction Equipment, check these: * Bad connection between control board and display: Remove the display and reconnect it.
  • A
    Andrew MarshallSep 18, 2025
    How to troubleshoot no pressure regulation on Graco Controller?
    • W
      William RoachSep 18, 2025
      If there is no pressure regulation on your Graco Controller, it might be due to a damaged or clogged air regulator or line, no flow or pressure to the inlet of the regulator, or a damaged diaphragm. Clear any obstruction in the line, service the regulator if necessary, clear any obstruction in the fluid line to the regulator, or replace the diaphragm.
  • L
    Luke SmithSep 5, 2025
    What to do if Graco Paint Sprayer fluid does not shut off when fluid valves are closed?
    • A
      Alexander OwensSep 5, 2025
      If the fluid in your Graco Paint Sprayer does not shut off when the fluid valves are closed, the fluid valves may be damaged. Replace the fluid valves.
  • D
    David Jackson MDSep 8, 2025
    How to fix air leaking from my Graco Controller regulator?
    • L
      Laura MorrisSep 8, 2025
      If your Graco Controller regulator is leaking air, check if the air fitting is loose and tighten it. Also, ensure that the screws are torqued oppositely and alternately to 25 in-lb (2.8 N•m). Finally, a ruptured air diaphragm could be the cause.
  • J
    Jordan HortonSep 14, 2025
    How to adjust high engine speed at no load on Graco Construction Equipment?
    • J
      Jennifer KimSep 14, 2025
      If your Graco Construction Equipment has a high engine speed at no load, consider these causes: * Misadjusted throttle setting: Reset the throttle to 3700 engine rpm at no load.
  • E
    esanchezSep 23, 2025
    What to do if my Graco Water Pump has erratic or accelerated speed?
    • C
      coxgregorySep 23, 2025
      If your Graco Water Pump has an erratic or accelerated speed, first check if the fluid supply is exhausted and refill the supply and prime the pump. Also, a held open or worn piston valve or packings can cause this. Clear the valve and replace the packings. Finally, a held open or worn intake valve may be the reason. Clear the valve and service it.
  • G
    Gary RichardsonAug 25, 2025
    What to do if Graco Paint Sprayer motor does not run?
    • T
      Tina DavisAug 26, 2025
      If your Graco Paint Sprayer's motor isn't running, try these steps: * Ensure the pressure isn't set to zero by turning the pressure control knob clockwise. * Check the outlet by trying a different one or testing with a known working device. Reset the circuit breaker or replace the fuse if needed. * Inspect and replace the extension cord if it's damaged. * Examine the sprayer's power cord for damage and replace if necessary. * If paint or water is frozen, thaw the sprayer completely before use. If paint is hardened, a service center may be needed.

Summary

Operation Overview

Important Safety Instructions

Read all warnings and instructions in this manual. Save these instructions.

Warnings

Grounding Safety Procedures

Ensures proper grounding to reduce electric shock risk. Follow local codes and use grounded outlets.

Fire and Explosion Prevention

Guidelines to prevent fire and explosion from flammable fumes, static electricity, and ignition sources.

Injection and Misuse Hazards

Addresses risks of skin injection from high-pressure spray and hazards from equipment misuse.

Other Safety Precautions

Covers electric shock, aluminum parts, burn, moving parts, toxic fluids, and PPE requirements.

Grounding and Electrical Requirements

Thermal Overload Protection

Details the motor's thermal overload switch and procedures for overheating.

Sprayer Operation

Trigger Lock Functionality

Instructions on engaging the trigger lock to prevent accidental spraying.

Pressure Relief Procedure

Steps to relieve system pressure before cleaning, servicing, or transporting the equipment.

Pressure Control Knob Settings

Explanation of pressure control knob functions for adjusting spray pressure.

Setup Guide

Prime and Flush Storage Fluid

Procedure for priming the sprayer and flushing out storage fluid before use.

Install Tip and Guard on Gun

Step-by-step guide for correctly installing the spray tip and guard onto the gun.

Spraying Techniques and Tips

Guidance on basic spraying techniques, getting started, and preventing tip wear.

Unclogging and Tip Selection

Instructions for unclogging spray tips and selecting the appropriate tip size for different coatings.

Choosing and Understanding Tips

Information on selecting the correct tip hole size and understanding tip part numbers.

Shutdown and Cleaning

Pail Flushing Process

Steps for flushing the sprayer system with water or solvent after use.

Cleaning the Gun Filter

Procedure for removing, cleaning, and re-installing the gun fluid filter.

Storage Procedures

Short and Long Term Storage

Instructions for storing the sprayer for short periods (up to 2 days) and long periods (over 2 days).

Stowing the Sprayer

Steps for properly stowing the sprayer for storage, including draining and protecting components.

Maintenance and Service

Sprayer Care and Cleaning

General advice on keeping the sprayer clean and in good working order.

Hose and Tip Maintenance

Guidelines for checking and maintaining paint hoses and spray tips.

Pump Component Service

Information on servicing pump check valves and pump packings.

Troubleshooting Guide

Parts Identification

Parts List and Diagrams

Detailed list and diagrams of all parts for the ESP240V sprayer models.

Technical Data

Graco Standard Warranty

Graco A Series Specifications

General IconGeneral
BrandGraco
ModelA Series
CategoryWater Pump
LanguageEnglish

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