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Grizzly
G4791
owner manual
Models:
G4791
1
92
96
96
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96 pages
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Troubleshooting
Specifications
Parts list
Machine Data Sheet
Wiring
Maintenance
Configuring Mill V-Belts
Accessories
Setup
Replacing Shear Pins
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Contents
Model G4791
Ss ,EAD from Leadbased PAINTS
Table of Contents
Introduction
Foreword Functional Overview
Contact Info
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Identification
Machine Data Sheet
Lathe
Other Specifications
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Additional Safety Instructions For Mills
Additional Safety Instructions for Lathes
Eliminating a Projectile Hazard
Circuit Requirements
220V Operation
Setup
Setup Safety
Items Needed for Setup
Unpacking
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Inventory
Inventory Figures Qty
Clean Up
Placement Location
Site Considerations
Floor Load
Placement Assembly
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Mounting to Shop Floor
Bolting to Concrete Floors
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Using Machine Mounts
Check Gearbox Oil
Test Run
To test run the machine
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Recommended Adjustments
Factory adjustments that should be verified
Spindle Break-In
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Operation Safety
Mill Operations
Basic Mill Controls
Mill Head
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Carriage
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Carriage Handwheel BdkZh iZ XVggV\Z aZidgg\i#
Table Movement
Head Movement
Rotating the Mill Head
Elevating the Mill Head
Setting Mill Speed
Configuring Mill V-Belts
Calculating Mill Spindle Speed
Cutting Speeds for High Speed Steel HSS Cutting Tools
Example with HSS Cutting Tool
Quill Downfeed
Loading & Unloading Mill Tooling
Loading Tooling With Drawbar
To use the downfeed controls
Unloading Tooling With the Drawbar
Unloading Tooling With the Drift Key
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Lathe Operations
Basic Lathe Controls
Lathe Head
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Main Power on Button IjgchedlZgONid iZbVXcZ#
Main Power Emergency Button Ijgch
Tailstock
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Mounting/Removing Chuck or Faceplate
Mounting a Chuck or Faceplate
Jaw Chuck
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Mounting Workpiece in 3-Jaw Chuck
Removing Jaws from 3-Jaw Chuck
Tools Needed Qty
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Installing Jaws into 3-Jaw Chuck
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To mount a workpiece to the faceplate
Faceplate
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Using a Dead Center in the Spindle
Centers
Offsetting Tailstock
Using a Dead Center in the Tailstock
To set the tailstock offset
39#
Aligning Tailstock
To align the tailstock
Drilling with Tailstock
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Follow Rest
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Steady Rest
To use the steady rest
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Compound Slide
Handwheel Dial Increments Resolution
Carriage Cross Slide Table
Tool Post
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To load and use the 4-way tool post
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Setting Lathe Speed
Calculating Correct Spindle Speed
Configuring Lathe V-Belts
To configure the lathe V-belts
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Setting Feed Rate
Example
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Feed Rate Change Lever
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Change Gear a
Configure Change Gears
To configure the change gears
Change Gear D
Example of Setting Feed Rate
Change Gear B or C
Thread Dial
Threading Controls
Half-Nut Lever
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G1070-MT3 Live Center Set
Accessories
G1076-52-PC. Clamping Kit, 1⁄2 T-Nut
H7540-Metalworking Kit No
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H2987-½ Bent Lathe Dog
H6879-Lathe Operation & Maintenance Book
H2677-6 Precision Rotary Table
Schedule
Maintenance
Cleaning Protecting
Daily Lubrication Procedures
Lubrication
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To check and add oil to the reservoir
Checking/Adding Lathe Gearbox Oil Reservoir
Lubricant Frequency Qty
To perform the semi-annual procedure
Semi-Annual Lubrication
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Changing Lathe Gearbox Oil
To change the oil in the reservoir
To adjust the motor V-belt tension
Lathe V-Belt Tensioning
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Service
Troubleshooting
Motor & Electrical
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Mill Operation
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Lathe Operations
42#
Adjusting Gibs
To adjust the saddle and table gibs
To adjust the compound gib
Saddle and Table Gibs
Adjusting Table Backlash
To adjust the tailstock gib
To adjust the table backlash
Tailstock Gib
Adjusting Half-Nut
Replacing Shear Pins
To adjust the half-nut
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To adjust the lathe spindle bearing preload
Lathe Bearing Preload
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Wiring
Electrical Safety Instructions
Wiring Overview
Plug
Electrical Component Wiring Diagrams
Main Power Switch
72
72
Mill Head Breakdown
Mill Head Parts List
Description
Downfeed Breakdown
Mill Motor Breakdown
Capacitor Cover
Tailstock Breakdown
Bed Breakdown
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Bed Parts List
Change Gear 20T
Lathe Head Breakdown
Lathe Head Parts List
Change Gear Box Breakdown
Lathe Motor Breakdown
Steady Rest Breakdown
Follow Rest Breakdown
Compound Slide Breakdown
Accessories Breakdown
Label Placement
Page
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