MEDIUM-SIZE, Heavy Chucks | Grizzly G0740 guide

Chuck & Faceplate

Mounting

Installation &

Removal Devices

this lathe is equipped with a D1-type spindle nose. this type of spindle uses camlocks that are adjusted with a chuck key to securely mount a chuck or faceplate with repeatable precision and ease.

Never use spindle speeds faster than the chuck RPM rating or the safe limits of your workpiece. Excessive spindle speeds greatly increase the risk of the workpiece or chuck being thrown from the machine with deadly force!

this lathe ships with the 3-jaw chuck installed. this is a scroll-type chuck where all three jaws move in unison when the chuck key is used.

the included 4-jaw chuck features independent jaws, which are used for square or unevenly- shaped stock, and to mount work that needs to be adjusted to near zero total indicated runout.

if neither chuck can hold your workpiece, the cast iron faceplate has slots for t-bolts that hold standard or custom clamping hardware. With the correct clamping hardware, a faceplate offers a wide range of uses, including machining non- concentric workpieces, straight turning between centers, off-center turning, and boring.

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because chucks are heavy and often awkward to hold, some kind of lifting, support, or protec- tive device should be used during installation or removal. the weight and size of the chuck will determine the appropriate device to use (refer to the following figure for examples).

A dropped chuck can cause amputation, serious crushing injuries, or property dam- age. Always use a support or protective device to reduce this risk when installing or removing a chuck.

	SMALL, LIGHTWEIGHT CHUCKS
	Plywood Protection
	Plate for Chucks
	Installed by Hand
	MEDIUM-SIZE, HEAVY CHUCKS
	Plywood & 2x4	Solid Block
	Chuck Cradle	Chuck Cradle
		Chuck Cradle
		Way Slot
		Jaw Slot
	Plywood Chuck Cradle	Plywood Chuck Cradle
	(Straight Cuts)	(Curved Cuts)
	LARGE, VERY HEAVY CHUCKS
	Pre-Threaded Hole	Fabricated Steel
	for Lifting Eye	Fabricated Steel
	for Lifting Eye	Lifting Hook
		Lifting Hook

Figure 30. Examples of common devices used

during chuck installation and removal.

Model G0740 (Mfg. Since 11/12)

Image 34

Grizzly G0740 owner manual Chuck & Faceplate Mounting Installation Removal Devices, MEDIUM-SIZE, Heavy Chucks

Contents

Model G0740 14 X 40 HIGH-PRECISION Toolroom Lathe Page Table of Contents Maintenance 129 Machine Description Manual Accuracy IntroductionContact Info Identification Controls Components Two-Speed Motor SwitchHeadstock Control Panel Carriage Tailstock Safety Foot BrakeEnd Gears Machine Data Sheet Tailstock Info Other Specifications Safety Safety Instructions for MachineryPage Additional Safety for Metal Lathes Additional Chuck Safety Full-Load Current Rating Power SupplyAvailability Circuit Requirements for Minimum Gauge Size 12 AWG Grounding InstructionsExtension Cords 50 ft Correcting Phase Polarity Wiring To correct wiring that is out of phase Preparation SetupNeeded for Setup Unpacking Inventory Box 1 Figure Qty Steady Rest Assembly InstalledPre-Installed Not Shown Qty Tool Box Inventory Figure Qty Before cleaning, gather the following CleanupBasic steps for removing rust preventative Site Considerations Lifting & Moving To lift and move the lathe Leveling & Mounting Leveling Lubricating Lathe AssemblyBolting to Concrete Floors To connect the power cord to the lathe Power ConnectionAdding Coolant Test Run Test run consists of verifying Stop Cross Slide Spindle Break-In Recommended Adjustments Factory adjustments that should be verified Operations Operation Overview Chuck & Faceplate Mounting Installation Removal Devices MEDIUM-SIZE, Heavy Chucks Chuck Installation To install the chuck Registration Marks Chuck RemovalTo remove the chuck Chuck Jaw Reversal Scroll Chuck ClampingTo reverse 2-piece jaws Jaw Chuck Mounting Workpiece Faceplate To mount a non-concentric workpiece to the faceplate Tailstock Using QuillInstalling Tooling Positioning Tailstock Removing Tooling Offsetting TailstockTo install tooling in the tailstock Tools Needed Qty Items Needed Qty Aligning Tailstock to Spindle CenterlineTo offset the tailstock To align the tailstock to the spindle center- linePage Live Centers CentersDead Centers Mounting Dead Center in Spindle Removing Center from Tailstock Removing Center from SpindleMounting Center in Tailstock To mount a center in the tailstock Mounting Workpiece Between Centers To install and use the steady rest Steady Rest Follow Rest Carriage & Slide Locks Installing Tool Compound Rest Four-Way Tool Post To align the cutting tool with the tailstock center Aligning Cutting Tool with Spindle CenterlineBelow are two common methods Top View Tools Needed Qty Hex Wrench 5mm Adjustable Feed StopMicrometer Stop To set the micrometer stop Manual Feed Spindle Speed Setting Spindle Speed Configuration Examples Power Feed Setting Spindle Speed of 1600 RPM Power Feed Controls Setting Power Feed Rate Setting Power Feed Rate of 0.18mm/rev Standard End Gear Configuration End Gears Alternate Configuration To configure the end gears Threading Headstock Threading Controls Apron Threading Controls Nut when required and prevent an apron crashThread Dial Even TPI Not Divisible By Thread Dial ChartTPI Divisible By Odd Numbered TPI ⁄4 or 3⁄4 Fractional TPI Chip Drawer27⁄8 TPI Coolant System Biological & Poison Hazard Accessories T10439-4 Pc. Carbide Insert Ccmt Boring Bar Set G9612-Test Indicator G9610-Test IndicatorG9611-Test Indicator G7978-Rotary Phase Converter Cleaning/Protecting MaintenanceSchedule Lubrication Lubrication Task Frequency Quick-Change Gearbox To change the headstock oil Apron One-Shot Oiler Longitudinal Leadscrew Ball Oilers & Oil Cup Handling & Care Coolant System Service Hazards See Hazards on Adding CoolantChanging Coolant To add coolant Machine Storage To prepare the lathe for storage Symptom Possible Cause Possible Solution ServiceTroubleshooting Motor & Electrical Symptom Possible Cause Possible Solution Lathe Operation As necessary see Compound Rest Backlash AdjustmentCross Slide Gib Adjustment Leadscrew End Play AdjustmentTo remove leadscrew end play Front saddle gib adjustment screw Carriage Lock Clamp To adjust the V-belts Half Nut AdjustmentTo adjust the half nut Belts Brake & Switch To adjust the brake and brake switchPage Leadscrew Shear Pin Replacement To replace the shear pin Shear Pin Gap Installation Gap Insert Removal InstallationGap Removal Wiring Wiring Safety Instructions Wiring Overview Component Location Index Component location index Model G0740 Mfg. Since 11/12 Electrical Cabinet Wiring Safety Switch, To Work Lamp, Electrical box wiring Model G0740 Mfg. Since 11/12 Electrical Box Coolant Pump Wiring Spindle Motor Speed Motor Switch To Electrical Cabinet Control Panel Wiring Spindle Switches Power Connection Parts Headstock Cover Headstock Controls Headstock Controls Parts List Gears Headstock Internal Gears Parts List Headstock Transfer Gears Description Gearbox Gears Gearbox Gears Parts List 291 282 283 292 323 284 285 286 Gearbox Controls Parts List Apron Front View Apron Front View Parts List Apron Apron Rear View Parts List Compound Rest & Tool Post Saddle Top View 663 Saddle Top View Parts List Saddle Bottom View Dial Indicator Bed Stop Bed Shafts Bed & Shafts Parts List Model G0740 Mfg. Since 11/12 115 Motor Main Motor Parts List Cabinets & Panels 118 Model G0740 Mfg. Since 11/12 Cabinets & Panels Parts List Tailstock Tailstock Parts List Follow Rest Electrical Cabinet & Control Panel Accessories Front Machine Labels Rear & Side Machine Labels Warranty Card Comments Grizzly INDUSTRIAL, INC BOX BELLINGHAM, WA Warranty & Returns Order Hours a DAY