Adjusting Table Backlash, Tailstock Gib | Grizzly G4791 specification

3. BV`Z VY_jhibZcih ^c hbVaa VcY ZfjVa ^cXgZ" bZcihidi]ZhXgZlh!i]ZciZhii]ZbdkZbZci d[i]Zha^YZWngdiVi^c\i]Z]VcYl]ZZa#

Note: Turning the screws clockwise will tighten the gib, and turning them counter- clockwise will loosen the gib.

4. L]Zc ndj VgZ hVi^h[^ZY l^i] i]Z \^W VY_jhi" bZci! `ZZe i]Z hXgZlh [gdb bdk^c\ VcY i^\]iZci]Z]ZmcjiidhZXjgZi]ZhZii^c\h#

5. GZ"X]ZX` i]Z bdkZbZci d[ i]Z ha^YZ VcY! ^[ cZXZhhVgn!gZeZViSteps 2–4#

Tailstock Gib

Tools NeededQty

=ZmLgZcX])bb############################################## &

To adjust the tailstock gib:

1. BV`Z VY_jhibZcih ^c hbVaa VcY ZfjVa ^cXgZ" bZcihidi]ZhZihXgZlhh]dlc^cFigure 104! i]ZciZhii]ZbdkZbZcid[i]ZiV^ahidX`Vadc\ i]ZWZYlVn#

Note: Turning the set screws clockwise will tighten the gib, and turning them counter- clockwise will loosen the gib.

HZiHXgZlh

Figure 104.IV^ahidX`\^WVY_jhibZcihZihXgZlh#

<),.&&'m(.AVg\Z8dbWdAVi]Z$B^aa

Adjusting Table

Backlash

7VX`aVh] ^h i]Z Vbdjci d[ eaVn ^c V aZVYhXgZl# >i ^h [Zai l]Zc ijgc^c\ i]Z ]VcYl]ZZa ^c dcZ Y^gZXi^dc! i]Zc ijgc^c\ ^i ^c i]Z di]Zg Y^gZXi^dc# I]Z Y^hiVcXZ i]Vi i]Z ]VcYl]ZZa bdkZh l^i]dji bdk^c\i]ZaZVYhXgZldgViiVX]ZYXdbedcZcih^h i]ZWVX`aVh]#

L]ZcVY_jhi^c\i]ZWVX`aVh]!i^\]iZci]ZaZVYhXgZl cji Zcdj\] id gZbdkZ ZmXZhh^kZ WVX`aVh]! Wji cdi hd bjX] i]Vi i]Z cji W^cYh i]Z aZVYhXgZl! bV`^c\^i]VgYidijgc#DkZg"i^\]iZc^c\l^aaXVjhZ ZmXZhh^kZlZVgidi]ZaZVYhXgZlVcYcji#

Tools NeededQty

HiVcYVgYHXgZlYg^kZg######################################## &

To adjust the table backlash:

1. 9>H8DCC:8IB68=>C:;GDBEDL:G
2.	JhZ i]Z ]VcYl]ZZa id bdkZ i]Z iVWaZ
	idlVgYi]ZdeZgVidgjci^andjXVcVXXZhhi]Z
	aZVYhXgZl cji VY_jhibZci hXgZlh [gdb i]Z
	gZVgd[i]ZiVWaZ!Vhh]dlc^cFigure 105#
	AZVYhXgZlCji
	6Y_jhibZci
	HXgZlh
Figure 105.IVWaZaZVYhXgZlcjiVcYVY_jhibZci
	hXgZlhk^ZlZY[gdbi]ZgZVgd[i]ZiVWaZ#
3. Ijgci]ZVY_jhibZcihXgZlh^chbVaaVcYZfjVa
	^cXgZbZcih!i]Zcijgci]ZiVWaZ]VcYl]ZZaid
	iZhii]ZWVX`aVh]#
	"+*"

Image 67

Grizzly G4791 Adjusting Table Backlash, Tailstock Gib, To adjust the tailstock gib, To adjust the table backlash

Contents

Model G4791 Ss ,EAD from Leadbased PAINTS Table of Contents &m.AVg\Z8dbWdAViZ$Baa IntroductionForeword Functional Overview Contact Info Identification Machine Data Sheet Lathe Other Specifications BVXcZgn cdhZ XVc XVjhZ eZgbVcZci ZVgc\adhh# !,7!93 53%3 %!2.2 02/4%#4/ %. /0%2!4.! -!#.%29 !,7!93 ,/#+ -/,% !3%33 & 53%$ % %&/2% /0%2!4. -!#.%29# 53%3!!2/5.$%$ %84%.3/..#/2$ 2!4%$4&/2/4%-!#.%!-0%2!%2 Additional Safety Instructions For Mills Eliminating a Projectile Hazard Additional Safety Instructions for Lathes 220V Operation Circuit Requirements Unpacking SetupSetup Safety Items Needed for Setup Inventory Figures Qty Inventory7dai7V\dg8ZciZgEVcZa!cdihdlc Floor Load Clean UpPlacement Location Site Considerations mHjeedgi Placement Assembly XVWcZihiVcYhVcYiZaddg# Mounting to Shop FloorBolting to Concrete Floors d To test run the machine Using Machine MountsCheck Gearbox Oil Test Run 11. EgZhh iZ bVc edlZg BGC8N hide Wjiidcc# CZjigVa 9hZc\V\ZY 9H8DCC8IB68=CGDBEDLG Recommended AdjustmentsFactory adjustments that should be verified Spindle Break-In Mill 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 Head Cutting Speeds for High Speed Steel HSS Cutting Tools Setting Mill SpeedConfiguring Mill V-Belts Calculating Mill Spindle Speed Example with HSS Cutting Tool To use the downfeed controls Quill DownfeedLoading & Unloading Mill Tooling Loading Tooling With Drawbar Va\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 Head CdiYhXdccZXiiZbVXcZgdbedlZg# Main Power on Button IjgchedlZgONid iZbVXcZ#Main Power Emergency Button Ijgch Tailstock Mounting a Chuck or Faceplate Mounting/Removing 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# Va\cZYhZZ dgVcZmVbeaZ# FaceplateTo mount a workpiece to the faceplate Centers Using a Dead Center in the Spindle9ZVY8ZciZg AViZ9d\ 39# Offsetting TailstockUsing a Dead Center in the Tailstock To set the tailstock offset To align the tailstock Aligning Tailstock VbdjcidVXXjgVXnhVXZkZY# Drilling with Tailstock 7gVhhc\Zg 8jiiZg Follow RestIjbW HXgZl HiZVYnGZhi=ZVY Steady RestTo use the steady rest 8aVbeHdZ Carriage Cross Slide Table Handwheel Dial Increments ResolutionCompound Slide GZeZVi dgiZgZbVcc\iddah# Tool Post8VeHXgZl AdX` AZkZg Iddah To load and use the 4-way tool post Calculating Correct Spindle Speed Setting Lathe Speed HecYaZEjaaZnC Configuring Lathe V-BeltsTo configure the lathe V-belts IZchdcc\hegc\# Idc# Setting Feed RateExample XVc\Z\ZVgh# ZZYgViZgVc\ZaZkZg# Feed Rate Change Lever To configure the change gears Configure Change GearsChange Gear a Change Gear B or C Example of Setting Feed RateChange Gear D Half-Nut Lever Threading ControlsThread Dial VaaeVhhZh# VcYDgVcY ¿ G1076-52-PC. Clamping Kit, 1⁄2 T-Nut AccessoriesG1070-MT3 Live Center Set H2987-½ Bent Lathe Dog Wjicdihdlc#H7540-Metalworking Kit No H2677-6 Precision Rotary Table H6879-Lathe Operation & Maintenance Book Cleaning Protecting MaintenanceSchedule Lubrication Daily Lubrication Procedures BaaXdajbcVcYaZVYhXgZl# BaaFjaa AZVYhXgZlYgkZhViWVaadaZgh# Lubricant Frequency Qty Checking/Adding Lathe Gearbox Oil ReservoirTo 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 Oil EjaaZn 9ZaZXidc To adjust the motor V-belt tensionLathe V-Belt Tensioning =ZmCjih 6YjhibZci7dai Hnbeidb EdhhWaZ8VjhZ EdhhWaZHdajidc ServiceTroubleshooting Motor & Electrical # Lgdc\hoZXdaaZi# # JhZXdggZXiXdaaZidghVc`YVbZiZg# Mill Operation 42# Lathe Operations Saddle and Table Gibs Adjusting GibsTo adjust the saddle and table gibs To adjust the compound gib Tailstock Gib Adjusting Table BacklashTo adjust the tailstock gib To adjust the table backlash HZVgEch 8dccZXic\8daaVg Adjusting Half-NutReplacing Shear Pins To adjust the half-nut AdX` 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 Wiring Wiring Overview Main Power Switch Electrical Component Wiring DiagramsPlug 72 72 Mill Head Breakdown Description Mill Head Parts List Downfeed Breakdown Capacitor Cover Mill Motor Breakdown Tailstock Breakdown 8dbWdAViZ$Baa Bed Breakdown Bed Parts List Change Gear 20T Lathe Head Breakdown Lathe Head Parts List Change Gear Box Breakdown Lathe Motor Breakdown Follow Rest Breakdown Steady Rest Breakdown Compound Slide Breakdown Accessories Breakdown Label Placement Page IdYVn»h=dbZdlcZg =dlYYndjaZVgcVWdjijh4 TTTT 6YkZgihZbZci Tttt gZcYTTTT 8VgY9ZX` Tttt LZWhiZ TTTT DiZg 8VWcZiBV`Zg $5342!, .# 0/ /8 %,,.!- 7! EaVXZ HiVbe =ZgZ 22!.49 !.$ 2%452.3 #ALL 4ODAYD&ORO! &2%%