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Grizzly G2790 - User Manual

Grizzly G2790
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MODEL G2790
UNIVERSAL KNIFE GRINDER
OWNER'S MANUAL
(For models manufactured since 04/13)
COPYRIGHT © 1992 BY GRIZZLY INDUSTRIAL, INC., REVISED MAY, 2017 (BL)
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
#0346 PRINTED IN TAIWAN
177335
V3.05.17

Table of Contents

Other manuals for Grizzly G2790

Preview: Instruction Manual
Instruction Manual23 pages
Preview: Parts List
Parts List3 pages

Questions and Answers

  • T
    Tammy StuartAug 17, 2025
    What to do if Grizzly G2790 has burned spots or cracks in the workpiece?
    • J
      Jeffrey HunterAug 18, 2025
      If you notice burned spots or cracks on your workpiece, it could be due to several reasons. You might be using the wrong type of grinding wheel, so ensure you're using the correct one. The feed rate might be too slow, in which case you should increase it. Alternatively, the depth of cut could be too great; try reducing it and making multiple light passes. Lastly, the workpiece may be overheating. To prevent this, grind in short durations and allow the workpiece to cool in between.
  • T
    Tamara OsborneAug 20, 2025
    Why does my Grizzly G2790 wheel clog and the workpiece show burn marks?
    • S
      smithraymondAug 20, 2025
      If your grinding wheel clogs and the workpiece shows burn marks, it could be due to a few reasons. The wheel grade might be too hard, so consider using a softer grade. Also, your feed rate might be too slow, so try increasing it. Another potential cause is that the wheel was dressed incorrectly. Lastly, make sure you are grinding ferrous materials only.
  • C
    christopheracostaAug 22, 2025
    How to fix a wavy pattern on the workpiece surface with a Grizzly G2790 Grinder?
    • K
      Kayla SolisAug 22, 2025
      A wavy pattern on the workpiece surface can occur for several reasons. First, the machine might be vibrating, so try to shim or tighten the mounting hardware. Second, the workpiece might be loose in the clamping device, so make sure to correctly re-clamp it. Third, the wheel face could be uneven. Finally, the wheel grade might be too hard, so consider using a softer grade wheel and reduce the depth of cut and feed rate.
  • R
    Richard FrostAug 26, 2025
    What causes lines on the workpiece surface when using a Grizzly G2790 Grinder, and how to fix it?
    • G
      guerrerowilliamAug 26, 2025
      Lines on the workpiece surface can be caused by an impurity on the wheel surface or if the workpiece is loose in the clamping device. In the first case you should dress the wheel. In the second case, ensure you correctly re-clamp the workpiece.
  • G
    George LeonAug 27, 2025
    Why does the Grizzly Grinder cutting tool get ground unevenly from one side to the other?
    • M
      Ms. Linda Chan MDAug 27, 2025
      If your cutting tool is being ground unevenly, it could be because the tool is not properly clamped, so properly re-clamp it. Another reason could be that the grinding table and wheel are not level with each other; push down or pull up the grinding table to make it level with the wheel. The wheel may also be damaged, in this case replace the wheel.
  • M
    Micheal KiddAug 30, 2025
    Why does the wheel on my Grizzly G2790 dull quickly, and the grit falls off?
    • J
      johnsonchelseaAug 30, 2025
      If the wheel dulls quickly and the grit falls off, it could be due to several reasons. The depth of cut might be too great, so reduce it and take multiple light passes. The wheel grade might be too soft, so use a harder grade of wheel. The wheel may have been exposed to moisture, so store the wheel away from moisture and replace it if necessary. Finally, defective wheel bonding can also cause this issue, so replace the wheel.
  • M
    Michelle DavisSep 1, 2025
    What to do if my Grizzly Grinder workpiece shows burned spots or cracks?
    • A
      Amy Brewer PhDSep 1, 2025
      If your workpiece has burned spots or cracks, it could be due to several reasons. First, ensure you are using the correct type of grinding wheel. If the feed rate is too slow, increase it. If the depth of cut is too great, reduce it and take multiple light passes. Also, avoid workpiece overheating by grinding in short durations and allowing the workpiece to cool in between.
  • H
    Heather PhelpsSep 4, 2025
    Why does my Grizzly G2790 Grinder wheel clog and the workpiece shows burn marks?
    • J
      jonathan56Sep 4, 2025
      If the wheel clogs and the workpiece shows burn marks, it could be due to a wheel grade that is too hard. Try using a softer grade of wheel. Also, ensure your feed rate isn't too slow by increasing it. The wheel may also need dressing, so dress the wheel correctly. Finally, make sure you are grinding ferrous materials only.
  • B
    Brian JonesSep 7, 2025
    Why does the wheel on my Grizzly Grinder dull quickly and grit falls off?
    • J
      Jesse CopelandSep 7, 2025
      If the wheel dulls quickly and grit falls off, it could be because the depth of cut is too great, so reduce the depth of cut and take multiple light passes. The wheel grade might be too soft, so use a harder grade of wheel. Another reason may be that the wheel was exposed to moisture. Store the wheel away from moisture or replace it.
  • E
    Emily RobinsonSep 9, 2025
    How to fix a wavy pattern on the workpiece surface with my Grizzly G2790?
    • M
      Misty GarnerSep 9, 2025
      A wavy pattern on the workpiece surface can occur if the machine is vibrating, so shim or tighten the mounting hardware. It can also happen if the workpiece is loose in the clamping device, so correctly re-clamp the workpiece. Finally, a wheel grade that is too hard can cause this issue, so use a softer grade wheel and reduce the depth of cut and feed rate.

Summary

Introduction

Manual Accuracy

Information about the document's accuracy and updates.

Functional Overview

Describes the grinder's capabilities and design.

Contact Info

Provides contact details for support and feedback.

Machine Identification

Machine Data Sheet

Safety Section

Read Manual Before Operation

Emphasizes reading the manual for safe operation.

Machinery Safety Instructions

General safety guidelines for operating machinery.

Personal Safety Precautions

Guidelines on clothing, hearing, and tool handling for safety.

Operational Safety Practices

Rules for safe operation, maintenance, and handling damaged parts.

Universal Grinder Safety

Specific safety precautions for this type of grinder.

Power Supply Requirements

Power Availability & Circuit Needs

Discusses power supply availability and circuit needs.

Full-Load Current Rating

Explains the machine's current draw and circuit sizing.

Grounding and Plug Requirements

Details on proper grounding and plug usage for safety.

Extension Cord Guidelines

Guidelines and recommendations for using extension cords.

Setup and Assembly

Setup Checklist

Lists items required for machine assembly and setup.

Unpacking Instructions

Instructions for safely unpacking the machine and checking for damage.

Parts Inventory

Lists all parts included with the machine for inventory.

Machine Cleanup

Steps for removing rust preventative from the machine surfaces.

Site Considerations

Guidance on workbench load and placement location for the machine.

Mounting the Grinder

Instructions on how to securely mount the grinder to a workbench.

Component Assembly

Step-by-step instructions for assembling the machine's components.

Test Run Procedure

Procedures for performing a test run after assembly.

Operations Guide

Grinding Best Practices

Advice and best practices for safe and effective grinding.

Grinding Wheel Selection

Information on choosing the correct grinding wheels for the machine.

Grinding Wheel Care

Guidelines for maintaining grinding wheels in good condition.

Wheel Inspection and Ring Test

Procedures for inspecting wheels for damage before use.

Mounting the Pivot Support

Instructions for attaching the pivot support to the grinder table.

Sharpening Narrow Tools

Steps for sharpening narrow cutting tools like chisels.

Sharpening Wide Knives

Procedures for sharpening wide blades like jointer or planer knives.

Recommended Accessories

Maintenance and Care

Maintenance Schedule

Recommended maintenance schedule for optimal performance.

Cleaning the Grinder

Instructions for cleaning the grinder and protecting its surfaces.

Lubrication Guide

Guide on lubricating the machine's moving parts.

Wheel Dressing Procedure

Steps for dressing the grinding wheel to maintain its surface.

Grinding Wheel Replacement

Procedure for replacing a worn or damaged grinding wheel.

Service and Troubleshooting

Troubleshooting Guide

A guide to diagnose and resolve common machine issues.

Wiring Information

Wiring Safety Instructions

Essential safety precautions for electrical wiring tasks.

Wiring Diagram

Schematic illustrating the electrical connections of the machine.

Parts Information

Parts Breakdown

Exploded view and list of all machine components.

Detailed Parts List

Detailed list of all parts with their corresponding reference numbers.

Warranty Registration

Warranty and Returns Policy

Grizzly G2790 Specifications

General IconGeneral
TypeBench Grinder
Voltage120V
Speed3450 RPM
Wheel Speed3450 RPM
Wheel Size8 inches
Wheel Arbor5/8 inches
Wheel Grit60 grit

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