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Graco G Series - User Manual

Graco G Series
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307026S
EN
Instructions – Parts List
2:1 Ratio Standard Pump
360 psi (25 bar) Maximum Fluid Working Pressure
180 psi (12.5 bar) Maximum Air Input Pressure
Model 226040, Series G
Stainless Steel, PTFE, Packed
Important Safety Instructions.
Read all warnings and instructions. Save
these instructions.
Table of Contents
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Pump Service (Model 226040) . . . . . . . . . . . . . . . . . . 10
Pump Service (Model 223954) . . . . . . . . . . . . . . . . . . 11
Pump Parts (Model 226040) . . . . . . . . . . . . . . . . . . . 12
Pump Parts (Model 223954) . . . . . . . . . . . . . . . . . . . 13
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Service Information . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . . . 22
Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Model 223954 Shown
2575
II 1/2 G T6
ITS03ATEX11227

Questions and Answers

  • C
    Christy SimpsonJul 28, 2025
    How to fix low output on the upstroke of a Graco Water Pump?
    • D
      Debra LewisJul 28, 2025
      If your Graco Water Pump's output is low on the upstroke, it could be caused by a held open or worn piston valve, which needs to be cleared or serviced. Alternatively, worn or damaged valves or seals might be the issue, requiring servicing.
  • W
    William JimenezAug 3, 2025
    Why does my Graco Water Pump fail to operate?
    • L
      Lonnie JohnstonAug 3, 2025
      If your Graco Water Pump isn't working, several factors could be at play. It might be due to a dirty or worn air motor, which requires cleaning or servicing. Check for inadequate air supply or restricted lines; cleaning the lines or increasing the air supply might resolve the issue. Also, ensure that the air valves are open and clear. A clogged fluid hose or valve could also be the culprit, so clear them out. Lastly, worn or damaged valves or seals may need servicing.
  • S
    stacyedwardsAug 9, 2025
    What to do if the output of my Graco Water Pump is low on both strokes?
    • M
      Mrs. Sandra OrtizAug 9, 2025
      If your Graco Water Pump's output is low on both strokes, there are a few potential reasons. First, a clogged fluid hose or valve could be restricting the flow, so clear them. Second, the fluid supply might be exhausted; refill it and reprime the pump. Finally, worn or damaged valves or seals could be the cause, requiring servicing.
  • B
    Benjamin SandersAug 14, 2025
    Why is my Graco Water Pump operating erratically?
    • Y
      ymurrayAug 14, 2025
      If your Graco Water Pump is operating erratically or at an accelerated pace, consider these potential causes: the fluid supply might be exhausted, requiring a refill and repriming of the pump. Alternatively, a broken air motor compression spring could be the issue, necessitating replacement.
  • C
    Carl BrownAug 21, 2025
    What causes low output on the downstroke of my Graco Water Pump?
    • V
      Vanessa WilliamsAug 21, 2025
      If your Graco Water Pump's output is low on the downstroke, it could be due to a held open or worn intake valve, which needs clearing or servicing. Another possibility is worn or damaged valves or seals, which would also require servicing.

Summary

Understanding Symbols

Warning Symbol Meaning

Alerts user to the possibility of serious injury or death if instructions are not followed.

Fire and Explosion Hazard Warning

Toxic Fluid Hazard Warning

Moving Parts Hazard Warning

Pump Installation Guide

System Grounding Procedure

Details essential grounding procedures for the pump and system to prevent fire hazards.

Pump Operation Guide

Pressure Relief Procedure

Outlines the critical steps to manually relieve system pressure before servicing or shutdown.

Pump Troubleshooting Guide

Model 226040 Pump Service

Displacement Pump Service

Detailed step-by-step instructions for disassembling and servicing the pump's displacement mechanism.

Model 226040 Pump Parts Diagram

Model 226040 Pump Parts List

Model 226040 Technical Data

Technical Data Performance Charts

Graco G Series Specifications

General IconGeneral
SeriesG Series
Mounting TypeDIN Rail
Input Voltage24 V DC
Enclosure RatingIP20
TypeController
CommunicationEthernet

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