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Graco Fast-Flo 226942 - User Manual

Graco Fast-Flo 226942
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2575
307427ZAF
EN
Instructions-Parts List
Fast-Flo
®
Pump
Air-operated piston transfer pump for low viscosity fluids. For professional use only.
Only models that are EX certified are approved for use in European explosive atmosphere
locations (see page 4).
180 psi (1.2 MPa, 12.4 bar) Maximum Air Input Pressure
180 psi (1.2 MPa, 12.4 bar) Maximum Working Pressure
For models that are certified, see page 4.
Important Safety Instructions
Read all warnings and instructions in this
manual before using the equipment.
Save these instructions.
This symbol on the nameplate
means the product is listed by
ETL. (UL Standard No. 79,
Standard for Power-Operated
Pumps for Petroleum Produce
Dispensing Systems).
1:1 RATIO
Stubby
Pump
Bung-Mounted
Adjustable
Length Pump
Bung-Mounted
Drum Length Pump

Table of Contents

Questions and Answers

  • K
    Kayla KnoxAug 9, 2025
    What to do if the Graco Water Pump fails to operate?
    • G
      gloriajacksonAug 9, 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. Also, check for inadequate air supply or restricted lines, and ensure the lines are clean and the air supply is sufficient. Other potential issues include closed or clogged air valves (open or clear them), a clogged fluid hose or valve (clear them), or worn or damaged valves or seals (service them as needed).
  • M
    Michael HannaAug 15, 2025
    Why is the output low on both strokes of my Graco Water Pump?
    • J
      Jeremy ColemanAug 15, 2025
      If your Graco Water Pump operates but has low output on both strokes, it could be due to a clogged fluid hose or valve, which you should clear. Another reason might be an exhausted fluid supply, so refill the fluid and reprime the pump. Also, worn or damaged valves or seals can cause this issue, so service them.
  • N
    Norman StewartAug 21, 2025
    Why is my Graco Water Pump operating erratically?
    • M
      Mary WilliamsAug 21, 2025
      If your Graco Water Pump operates erratically, it might be due to an exhausted fluid supply, so refill the fluid supply and reprime the pump. Another possible cause is a broken air motor compression spring, which would need to be replaced.
  • R
    Robert GrayAug 27, 2025
    What to do if the output is low on the upstroke of Graco Water Pump?
    • W
      watsonpeterAug 27, 2025
      If your Graco Water Pump operates but has low output on the upstroke, the cause may be a held open or worn piston valve, which requires clearing or servicing. Alternatively, worn or damaged valves or seals can cause this, so service the valve or seals.
  • T
    Theresa ClarkSep 2, 2025
    How to fix low output on the downstroke of a Graco Water Pump?
    • C
      Christopher SanfordSep 2, 2025
      If your Graco Water Pump operates but the output is low on the downstroke, it could be due to a held open or worn intake valve, which needs to be cleared or serviced. Another potential reason is worn or damaged valves or seals, which you should also service.

Summary

Warnings and Hazards

Equipment Misuse Hazard

Misuse can cause rupture, malfunction, and injury. Follow instructions and use for intended purpose.

Fire and Explosion Hazard

Improper grounding, ventilation, or open flames can cause fire or explosion, leading to injury.

Toxic Fluid Hazard

Hazardous fluid or fumes can cause serious injury or death if splashed, inhaled, or swallowed.

Moving Parts Hazard

Moving parts can pinch or amputate fingers. Keep clear when operating or servicing.

Pump Models Overview

Installation Procedures

Grounding the System

Warning: Pump must be grounded for fire and explosion prevention. Ground all equipment.

Operation Guide

Pressure Relief Procedure

Manually relieve system pressure to prevent accidental spraying or equipment movement. Follow safety steps.

Flush the Pump Before Using

Starting and Adjusting the Pump

Slowly open air valve or regulator to control pump speed and cycle rate for desired results.

Pump Shutdown

Maintenance Procedures

Lubrication and Fluid Management

Packing Nut Adjustment

Troubleshooting Common Issues

Pump Service: Air Motor

Disconnecting the Air Motor

Reconnecting the Air Motor

Pump Parts: Bung Mount Drum-Length Pumps (Carbon Steel)

Pump Parts: Bung Mount Drum-Length Pumps (Stainless Steel)

Pump Parts: Stubby Length Pumps (Carbon Steel)

Pump Parts: Stubby Length Pumps (Stainless Steel)

Pump Parts: Bung Mount Adjustable Length Pump (Carbon Steel)

Displacement Pump Service: Carbon Steel (Leather, Polyethylene, PTFE Packings)

Displacement Pump Service: Carbon Steel (Rubber Packings)

Displacement Pump Service: Stainless Steel (Polyethylene, Leather, PTFE Packings)

Displacement Pump Service: Stainless Steel (Rubber Packings)

Before You Start

Intake Valve Service

Piston Valve Service

Throat Packings Service

Accessories

Graco Fast-Flo 226942 Specifications

General IconGeneral
BrandGraco
ModelFast-Flo 226942
CategoryWater Pump
LanguageEnglish

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