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MODEL G3102/G3103
VERTICAL MILL
OWNER'S MANUAL
COPYRIGHT © OCTOBER, 2008 BY GRIZZLY INDUSTRIAL, INC., REVISED MARCH, 2015 (ST)
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
#TS11100 PRINTED IN CHINA

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Summarization of Contents

INTRODUCTION
Manual Accuracy Details
Information on manual accuracy, potential errors, and updates.
Contact Information
Grizzly Industrial contact details for support, parts, and inquiries.
Functional Overview of Mill
Explanation of the vertical mill's purpose, operation, and axes of movement.
Machine Identification
Component Identification Guide
Visual guide identifying machine components labeled A through X.
Main Specifications Overview
Operation Information
Details on operational parameters and machine capabilities.
Table Specifications
Specifications of the machine's table, dimensions, and T-slots.
Spindle Specifications
Technical details of the spindle, speeds, and bearings.
Construction Materials
Information on the machine's build materials and component construction.
Other Specifications
Additional data like origin, warranty, and certifications.
Key Machine Features
Highlights of the machine's primary functionalities and design attributes.
SECTION 1: SAFETY
General Safety Instructions
Critical safety guidelines for safe machinery operation and injury prevention.
Machinery Safety Instructions
Specific safety precautions for mill use, including electrical and eye protection.
SECTION 1: SAFETY (continued)
Additional Mill Safety Instructions
Specific safety advice for mill operation, tool handling, and hazard avoidance.
SECTION 2: CIRCUIT REQUIREMENTS
110/220V Operation Guide
Information on connecting the machine to 110V or 220V power supplies.
SECTION 3: SETUP
Setup Safety Precautions
Safety precautions to follow during the machine setup process.
Required Setup Items
List of tools and materials needed for setup, not included with the machine.
Machine Unpacking Instructions
Steps for safely unpacking and inspecting the machine after delivery.
Site Considerations
Floor Load Requirements
Guidelines on floor load capacity for safe machine placement.
Placement Location Factors
Factors to consider when choosing a suitable location for the machine.
Moving and Placing the Mill
Mill Moving and Placement Steps
Step-by-step instructions for safely moving and positioning the milling machine.
Mounting to Shop Floor
Floor Mounting Options
Describes methods for securing the machine to the floor, including bolting and mounts.
Assembly Instructions
Component Assembly Steps
Steps for assembling machine handles, handwheels, and other components.
Test Run Procedure
Performing the Test Run
Steps to verify machine functionality and safety features before regular operation.
Recommended Adjustments
Verifying Factory Adjustments
Recommends verifying factory-set adjustments for optimal machine performance.
SECTION 4: OPERATIONS
Operation Safety Guidelines
Essential safety practices and warnings for operating the milling machine.
Table Movement Controls
Explanation of the three axes of table movement and their controls.
Locks and Securing Mechanisms
Instructions on using locks to secure the table, cross slide, and knee.
Limit Stops Usage
How to position limit stops to confine table or cross slide travel.
Model G3103 Power Feed Operation
Instructions for using the longitudinal power feed system on the Model G3103.
Head Tilt Adjustment
Procedure for tilting the milling machine head to different angles.
Turret Rotation Mechanism
How to rotate the machine's turret around the column.
Setting Spindle Speed
Guidance on selecting and setting the appropriate spindle speed for milling operations.
Calculating Spindle Speed
Guide on how to calculate the correct spindle speed based on material and tooling.
Configuring V-Belts for Speed
Steps for adjusting V-belts to achieve desired spindle RPM settings.
V-Belt Speed Setting Example
Practical example demonstrating how to set spindle speeds using V-belt configurations.
Downfeed Controls Overview
Explanation of the various controls for quill movement and depth setting.
Quill Downfeed Controls
Detailed explanation of the controls for quill movement and depth setting.
Loading and Unloading Tooling
Steps for safely loading and unloading cutting tools into the machine spindle.
Tooling Procedures
Steps for safely loading and unloading cutting tools into the machine spindle.
SECTION 5: ACCESSORIES
Digital Readouts
Information on available 2-axis and 3-axis digital readouts for enhanced precision.
Machine Lubricants
Details on specialized lubricants like Primrose Armor Plate for machine maintenance.
Workholding Accessories
Description of the G1075 52-PC clamping kit for securing workpieces.
Milling Vises
Specifications for milling vises, T10063 and T10064, focusing on precision and capacity.
Rotary Table
Details on the G9299 10" Yuasa-Type Rotary Table, including its features.
Protective Coatings
Recommended products for protecting unpainted cast iron/steel parts on machinery.
Power Feed Unit Accessory
Information on the H8370 Power Feed accessory for enhanced milling control.
SECTION 6: MAINTENANCE
Maintenance Schedule
Recommended schedule for performing routine maintenance tasks on the machine.
Cleaning and Protecting the Mill
Procedures for cleaning the machine and protecting its surfaces from corrosion.
Lubrication Procedures
Details on lubricating critical sliding surfaces and internal components.
One-Shot Way Oiler Operation
Operation and function of the one-shot way oiler for lubricating ways.
SECTION 7: SERVICE
Troubleshooting Guide
Guide to diagnosing and resolving common machine issues and symptoms.
Adjusting Gibs
Gib Adjustment Procedures
Instructions on how to adjust gibs for proper table, saddle, and knee movement.
SECTION 8: ELECTRICAL
Electrical Safety Instructions
Critical safety guidelines for working with the machine's electrical system.
SECTION 9: PARTS
Head Breakdown Diagram
Diagram illustrating the breakdown of the milling machine head assembly.

Table of Contents