Machine Data Sheet | Grizzly G4791 instruction

MACHINE DATA

SHEET

Customer Service #: (570) 546-9663 · To Order Call: (800) 523-4777 · Fax #: (800) 438-5901

MODEL G4791 12" X 39" LARGE COMBO LATHE/MILL

Product Dimensions:
Weight	1110 lbs.
Length/Width/Height	69 x 25 x 69 in.
Foot Print (Length/Width)	56 x 19-1/2 in.
Shipping Dimensions:
Carton #1
Type	Wood Crate
Content	Machine
Weight	1208 lbs.
Length/Width/Height	73 x 33 x 43 in.
Carton #2
Type	Cardboard
Content	Left Stand
Weight	95 lbs.
Length/Width/Height	21 x 15 x 29 in.
Carton #3
Type	Cardboard
Content	Right Stand
Weight	88 lbs.
Length/Width/Height	21 x 15 x 29 in.
Electrical:
Switch	Push Button, Reversing
Switch Voltage	220V
Cord Length	6 ft.
Cord Gauge	14 gauge
Recommended Breaker Size	15 amp
Plug	No
Motors:
Mill
Type	TEFC Capacitor Start Induction
Horsepower	3/4 HP
Voltage	220V
Prewired	220V
Phase	Single
Amps	5.5A
Speed	1720 RPM
Cycle	60 Hz
Number Of Speeds	1
Power Transfer	Gear/Belt
Bearings	Sealed

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Image 6

Grizzly G4791 owner manual Machine Data Sheet

Contents

Model G4791 Ss ,EAD from Leadbased PAINTS Table of Contents Contact Info IntroductionForeword Functional Overview &m.AVg\Z8dbWdAViZ$Baa Identification Machine Data Sheet Lathe Other Specifications !,7!93 53%3 %!2.2 02/4%#4/ %. /0%2!4.! -!#.%29 BVXcZgn cdhZ XVc XVjhZ eZgbVcZci ZVgc\adhh# 53%3!!2/5.$%$ %84%.3/..#/2$ 2!4%$4&/2/4%-!#.%!-0%2!%2 !,7!93 ,/#+ -/,% !3%33 & 53%$ % %&/2% /0%2!4. -!#.%29# Additional Safety Instructions For Mills Additional Safety Instructions for Lathes Eliminating a Projectile Hazard Circuit Requirements 220V Operation Items Needed for Setup SetupSetup Safety Unpacking Inventory Inventory Figures Qty7dai7V\dg8ZciZgEVcZa!cdihdlc Site Considerations Clean UpPlacement Location Floor Load Placement Assembly mHjeedgi d Mounting to Shop FloorBolting to Concrete Floors XVWcZihiVcYhVcYiZaddg# Test Run Using Machine MountsCheck Gearbox Oil To test run the machine CZjigVa 9hZc\V\ZY 11. EgZhh iZ bVc edlZg BGC8N hide Wjiidcc# Spindle Break-In Recommended AdjustmentsFactory adjustments that should be verified 9H8DCC8IB68=CGDBEDLG Basic Mill Controls Operation SafetyMill Operations Mill Head Coarse Downfeed Lever GVhZh dg adlZgh iZhecYaZfjX`an# Main Power on Button cVWaZh edlZg id adlidiZbVXcZ#Carriage Carriage Handwheel BdkZh iZ XVggV\Z aZidgg\i# Rotating the Mill Head Table MovementHead Movement Elevating the Mill Head Calculating Mill Spindle Speed Setting Mill SpeedConfiguring Mill V-Belts Cutting Speeds for High Speed Steel HSS Cutting Tools Example with HSS Cutting Tool Loading Tooling With Drawbar Quill DownfeedLoading & Unloading Mill Tooling To use the downfeed controls 9H8DCC8IB68=CGDBEDLG JcigZVYiZYgVlWVg¶ijgch# Unloading Tooling With the DrawbarUnloading Tooling With the Drift Key Va\cZY# Lathe Head Lathe OperationsBasic Lathe Controls Spindle Back Plate Bdjcih XjX`h VcY Tailstock Main Power on Button IjgchedlZgONid iZbVXcZ#Main Power Emergency Button Ijgch CdiYhXdccZXiiZbVXcZgdbedlZg# Mounting/Removing Chuck or Faceplate Mounting a Chuck or FaceplateAjbWZg# MiZgcVa?Vl Jaw ChuckCiZgcVa?Vl VlXjX`# Tools Needed Qty Mounting Workpiece in 3-Jaw ChuckRemoving Jaws from 3-Jaw Chuck iZ ldg`eZXZ h XZciZgZY! jaan i\iZc iZVlh# GZeZVi Steps 4-5 dg Vl VcY c hZfjZcXZ# Installing Jaws into 3-Jaw ChuckHXgdaaZVg AZVYIgZVY ™ IZVlhbjhiWZadVYZYchZfjZcXZWZ\c cc\liVl&# Faceplate Va\cZYhZZ dgVcZmVbeaZ#To mount a workpiece to the faceplate Using a Dead Center in the Spindle Centers9ZVY8ZciZg AViZ9d\ To set the tailstock offset Offsetting TailstockUsing a Dead Center in the Tailstock 39# Aligning Tailstock To align the tailstock Drilling with Tailstock VbdjcidVXXjgVXnhVXZkZY# HXgZl Follow RestIjbW 7gVhhc\Zg 8jiiZg 8aVbeHdZ Steady RestTo use the steady rest HiZVYnGZhi=ZVY Handwheel Dial Increments Resolution Carriage Cross Slide TableCompound Slide To load and use the 4-way tool post Tool Post8VeHXgZl AdX` AZkZg Iddah GZeZVi dgiZgZbVcc\iddah# Setting Lathe Speed Calculating Correct Spindle Speed IZchdcc\hegc\# Configuring Lathe V-BeltsTo configure the lathe V-belts HecYaZEjaaZnC XVc\Z\ZVgh# Setting Feed RateExample Idc# Feed Rate Change Lever ZZYgViZgVc\ZaZkZg# Configure 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 ¿ VcYDgVcY VaaeVhhZh# Accessories G1076-52-PC. Clamping Kit, 1⁄2 T-NutG1070-MT3 Live Center Set Wjicdihdlc# H2987-½ Bent Lathe DogH7540-Metalworking Kit No H6879-Lathe Operation & Maintenance Book H2677-6 Precision Rotary Table Maintenance Cleaning ProtectingSchedule Daily Lubrication Procedures Lubrication AZVYhXgZlYgkZhViWVaadaZgh# BaaXdajbcVcYaZVYhXgZl# BaaFjaa Checking/Adding Lathe Gearbox Oil Reservoir Lubricant Frequency QtyTo check and add oil to the reservoir AaEaj\ 9gVcEaj\ To perform the semi-annual procedureSemi-Annual Lubrication GZbdkZiZaaeaj\# YjgZhZZ # 7ZkZaZVg cY8Ve GZbdkZiZbaaYgkZhnhiZbXdkZg# AdX`HXgZl Changing Lathe Gearbox Oil To change the oil in the reservoir =ZmCjih 6YjhibZci7dai To adjust the motor V-belt tensionLathe V-Belt Tensioning EjaaZn 9ZaZXidc Motor & Electrical ServiceTroubleshooting Hnbeidb EdhhWaZ8VjhZ EdhhWaZHdajidc Mill Operation # Lgdc\hoZXdaaZi# # JhZXdggZXiXdaaZidghVc`YVbZiZg# Lathe Operations 42# To adjust the compound gib Adjusting GibsTo adjust the saddle and table gibs Saddle and Table Gibs To adjust the table backlash Adjusting Table BacklashTo adjust the tailstock gib Tailstock Gib To adjust the half-nut Adjusting Half-NutReplacing Shear Pins HZVgEch 8dccZXic\8daaVg hZZ # To adjust the lathe spindle bearing preloadLathe Bearing Preload AdX` HeVccZgCji LVhZg IVc\ 9VacYXVidghZije# HeVccZg Cji$&+ chiVaa iZ Vl XjX` VcY i\iZc iZ Vlh cidiZXZciZg# Wiring Electrical Safety Instructions Wiring Overview Electrical Component Wiring Diagrams Main Power SwitchPlug 72 72 Mill Head Breakdown Mill Head Parts List Description Downfeed Breakdown Mill Motor Breakdown Capacitor Cover Tailstock Breakdown Bed Breakdown 8dbWdAViZ$Baa 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 8VWcZiBV`Zg =dlYYndjaZVgcVWdjijh4 TTTT 6YkZgihZbZci Tttt gZcYTTTT 8VgY9ZX` Tttt LZWhiZ TTTT DiZg IdYVn»h=dbZdlcZg EaVXZ HiVbe =ZgZ $5342!, .# 0/ /8 %,,.!- 7! 22!.49 !.$ 2%452.3 #ALL 4ODAYD&ORO! &2%%

MACHINE DATA

SHEET

MODEL G4791 12" X 39" LARGE COMBO LATHE/MILL

Electrical:

Motors:

Mill