Manuals / Grizzly / Power Tools / Lathe

Grizzly G4791 Quill Downfeed, Loading & Unloading Mill Tooling, Loading Tooling With Drawbar

Models: G4791

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Page 27

Quill Downfeed

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To use the downfeed controls:

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Note: It may be necessary to move the quill slightly up or down to push the downfeed selector knob all the way in.

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Note: Since the spring that automatically raises the quill is fairly strong, we recommend raising the quill in a controlled manner by hand to avoid premature wear to the mecha- nism.

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Loading & Unloading

Mill Tooling

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Loading Tooling With Drawbar

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Note: Over-tightening the drawbar could make removing the tool difficult.

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Image 27

Grizzly G4791 Quill Downfeed, Loading & Unloading Mill Tooling, Loading Tooling With Drawbar, To use the downfeed controls

Contents

Model G4791 Ss ,EAD from Leadbased PAINTS Table of Contents &m.AVg\Z8dbWdAViZ$Baa IntroductionForeword Functional Overview Contact InfoIdentification Machine Data Sheet Lathe Other Specifications BVXcZgn cdhZ XVc XVjhZ eZgbVcZci ZVgc\adhh# !,7!93 53%3 %!2.2 02/4%#4/ %. /0%2!4.! -!#.%29 !,7!93 ,/#+ -/,% !3%33 & 53%$ % %&/2% /0%2!4. -!#.%29# 53%3!!2/5.$%$ %84%.3/..#/2$ 2!4%$4&/2/4%-!#.%!-0%2!%2Additional Safety Instructions For Mills Eliminating a Projectile Hazard Additional Safety Instructions for Lathes220V Operation Circuit RequirementsUnpacking SetupSetup Safety Items Needed for SetupInventory Inventory Figures Qty7dai7V\dg8ZciZgEVcZa!cdihdlc Floor Load Clean UpPlacement Location Site ConsiderationsmHjeedgi Placement AssemblyXVWcZihiVcYhVcYiZaddg# Mounting to Shop FloorBolting to Concrete Floors dTo test run the machine Using Machine MountsCheck Gearbox Oil Test Run11. EgZhh iZ bVc edlZg BGC8N hide Wjiidcc# CZjigVa 9hZc\V\ZY 9H8DCC8IB68=CGDBEDLG Recommended AdjustmentsFactory adjustments that should be verified Spindle Break-InMill Head Operation SafetyMill Operations Basic Mill Controls Carriage Handwheel BdkZh iZ XVggV\Z aZidgg\i# Main Power on Button cVWaZh edlZg id adlidiZbVXcZ#Carriage Coarse Downfeed Lever GVhZh dg adlZgh iZhecYaZfjX`an#Elevating the Mill Head Table MovementHead Movement Rotating the Mill HeadCutting Speeds for High Speed Steel HSS Cutting Tools Setting Mill SpeedConfiguring Mill V-Belts Calculating Mill Spindle SpeedExample with HSS Cutting Tool To use the downfeed controls Quill DownfeedLoading & Unloading Mill Tooling Loading Tooling With DrawbarVa\cZY# Unloading Tooling With the DrawbarUnloading Tooling With the Drift Key 9H8DCC8IB68=CGDBEDLG JcigZVYiZYgVlWVg¶ijgch# Spindle Back Plate Bdjcih XjX`h VcY Lathe OperationsBasic Lathe Controls Lathe HeadCdiYhXdccZXiiZbVXcZgdbedlZg# Main Power on Button IjgchedlZgONid iZbVXcZ#Main Power Emergency Button Ijgch TailstockMounting/Removing Chuck or Faceplate Mounting a Chuck or FaceplateAjbWZg# VlXjX`# Jaw ChuckCiZgcVa?Vl MiZgcVa?Vl iZ ldg`eZXZ h XZciZgZY! jaan i\iZc iZVlh# Mounting Workpiece in 3-Jaw ChuckRemoving Jaws from 3-Jaw Chuck Tools Needed Qty™ IZVlhbjhiWZadVYZYchZfjZcXZWZ\c cc\liVl&# Installing Jaws into 3-Jaw ChuckHXgdaaZVg AZVYIgZVY GZeZVi Steps 4-5 dg Vl VcY c hZfjZcXZ#Faceplate Va\cZYhZZ dgVcZmVbeaZ#To mount a workpiece to the faceplate Using a Dead Center in the Spindle Centers9ZVY8ZciZg AViZ9d\ 39# Offsetting TailstockUsing a Dead Center in the Tailstock To set the tailstock offsetTo align the tailstock Aligning TailstockVbdjcidVXXjgVXnhVXZkZY# Drilling with Tailstock7gVhhc\Zg 8jiiZg Follow RestIjbW HXgZlHiZVYnGZhi=ZVY Steady RestTo use the steady rest 8aVbeHdZHandwheel Dial Increments Resolution Carriage Cross Slide TableCompound Slide GZeZVi dgiZgZbVcc\iddah# Tool Post8VeHXgZl AdX` AZkZg Iddah To load and use the 4-way tool postCalculating Correct Spindle Speed Setting Lathe SpeedHecYaZEjaaZnC Configuring Lathe V-BeltsTo configure the lathe V-belts IZchdcc\hegc\#Idc# Setting Feed RateExample XVc\Z\ZVgh#ZZYgViZgVc\ZaZkZg# Feed Rate Change LeverConfigure Change Gears To configure the change gearsChange Gear a Example of Setting Feed Rate Change Gear B or CChange Gear D Threading Controls Half-Nut LeverThread Dial VaaeVhhZh# VcYDgVcY ¿Accessories G1076-52-PC. Clamping Kit, 1⁄2 T-NutG1070-MT3 Live Center Set Wjicdihdlc# H2987-½ Bent Lathe DogH7540-Metalworking Kit No H2677-6 Precision Rotary Table H6879-Lathe Operation & Maintenance BookMaintenance Cleaning ProtectingSchedule Lubrication Daily Lubrication ProceduresBaaXdajbcVcYaZVYhXgZl# BaaFjaa AZVYhXgZlYgkZhViWVaadaZgh#Checking/Adding Lathe Gearbox Oil Reservoir Lubricant Frequency QtyTo check and add oil to the reservoir GZbdkZiZaaeaj\# To perform the semi-annual procedureSemi-Annual Lubrication AaEaj\ 9gVcEaj\AdX`HXgZl 7ZkZaZVg cY8Ve GZbdkZiZbaaYgkZhnhiZbXdkZg# YjgZhZZ #To change the oil in the reservoir Changing Lathe Gearbox OilEjaaZn 9ZaZXidc To adjust the motor V-belt tensionLathe V-Belt Tensioning =ZmCjih 6YjhibZci7daiHnbeidb EdhhWaZ8VjhZ EdhhWaZHdajidc ServiceTroubleshooting Motor & Electrical# Lgdc\hoZXdaaZi# # JhZXdggZXiXdaaZidghVc`YVbZiZg# Mill Operation42# Lathe OperationsSaddle and Table Gibs Adjusting GibsTo adjust the saddle and table gibs To adjust the compound gibTailstock Gib Adjusting Table BacklashTo adjust the tailstock gib To adjust the table backlashHZVgEch 8dccZXic\8daaVg Adjusting Half-NutReplacing Shear Pins To adjust the half-nutAdX` HeVccZgCji LVhZg IVc\ To adjust the lathe spindle bearing preloadLathe Bearing Preload hZZ #9VacYXVidghZije# chiVaa iZ Vl XjX` VcY i\iZc iZ Vlh cidiZXZciZg# HeVccZg Cji$&+Electrical Safety Instructions WiringWiring Overview Electrical Component Wiring Diagrams Main Power SwitchPlug 72 72Mill Head Breakdown Description Mill Head Parts ListDownfeed Breakdown Capacitor Cover Mill Motor BreakdownTailstock Breakdown 8dbWdAViZ$Baa Bed BreakdownBed Parts List Change Gear 20T Lathe Head Breakdown Lathe Head Parts List Change Gear Box Breakdown Lathe Motor Breakdown Follow Rest Breakdown Steady Rest BreakdownCompound Slide Breakdown Accessories Breakdown Label Placement Page IdYVn»h=dbZdlcZg =dlYYndjaZVgcVWdjijh4 TTTT 6YkZgihZbZci Tttt gZcYTTTT 8VgY9ZX` Tttt LZWhiZ TTTT DiZg 8VWcZiBV`Zg$5342!, .# 0/ /8 %,,.!- 7! EaVXZ HiVbe =ZgZ22!.49 !.$ 2%452.3 #ALL 4ODAYD&ORO! &2%%