Grizzly g0746, g0749 owner manual Aligning Tailstock to Spindle Centerline, Items Needed Qty

Page 44

Aligning Tailstock to Spindle Centerline

this is an essential adjustment that should be ver- ified or performed each time the tailstock is used to turn concentric workpieces between centers or immediately after offsetting the tailstock when turning a taper. if the tailstock is not aligned with the spindle centerline when it is supposed to be, turning results will be inaccurate along the length of the workpiece.

Items Needed

Qty

Hex Wrench 6mm

1

Round Stock 2" x 6"

2

Precision Level

1

To align the tailstock to the spindle center- line:

1.Use the precision level to make sure the bed- way is level from side to side and from front to back.

—if the bedway is not level, correct this condition before continuing with this proce- dure (refer to the Leveling section in this manual).

2.Center drill both ends of one piece of round stock, then set it aside for use in Step 5.

3.Use the other piece of round stock to make a dead center, and turn it to a 60° point, as illustrated in the figure below.

Figure 51. Turning a dead center.

Note: As long as this dead center remains in the chuck, the point of the center will remain true to the spindle centerline. The point will have to be refinished whenever the center is removed and then returned to the chuck.

4.install a center in the tailstock.

5.attach a lathe dog to the test stock from Step 2, then mount it between the centers as shown in the figure below.

Figure 52. Example photo of stock mounted

between the centers.

6.turn 0.010" off the stock diameter.

7.Mount a test or dial indicator so that the plunger is on the tailstock quill.

Note: If necessary in the following step, refer to the Offsetting Tailstock subsection for detailed instructions.

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Model G0746/G0749 (Mfg. Since 3/13)

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Contents GEAR-HEAD Lathe Page Table of Contents 113 117Contact Info IntroductionMachine Description Manual Accuracy Identification Master Power Switch Controls ComponentsCarriage TailstockControl Panel Safety Foot Brake End GearsMachine Data Sheet Tailstock Info Construction Model G0749 16 X 40 Heavy Duty Lathe 13-3/4 12.75 qt Safety Safety Instructions for MachineryPage Additional Safety for Metal Lathes Additional Chuck Safety Circuit Requirements for AvailabilityFull-Load Current Rating Correcting Phase Polarity To correct the phase polarity of the incoming power supplyConnection Type Grounding InstructionsSetup Needed for SetupPreparation UnpackingPackaged Components Figure InventoryMain Components Figure Qty Basic steps for removing rust preventative CleanupBefore cleaning, gather the following Site Considerations To lift and move the lathe Lifting & PlacingHEAvy LifT Machine Base Concrete Anchoring to Floor LevelingAnchoring to Concrete Floors Assembly Location of headstock jack screwsLubricating Lathe Power Connection Adding CoolantTo connect lathe to power Test RunTest run consists of verifying To test run your machineEmergency Feed LeverSpindle Break-In Recommended AdjustmentsFactory adjustments that should be verified Operations Operation OverviewTo install the camlock studs Chuck & PlateTo install the chuck Installation Removal DevicesChuck Installation Registration Marks Registration mark locationsTo remove the chuck Chuck RemovalScroll Chuck Clamping Changing Jaw Set To change the jaw setJaw Chuck Mounting WorkpieceDrive Plate FaceplateUsing Quill Installing ToolingTailstock Positioning TailstockOffsetting Tailstock To install tooling in the tailstockRemoving Tooling To offset the tailstockTo align the tailstock to the spindle center- line Aligning Tailstock to Spindle CenterlineItems Needed Qty Centers Dead CentersLive Centers Mounting Dead Center in SpindleRemoving Center from Spindle Mounting Center in TailstockRemoving Center from Tailstock Mounting Workpiece Between CentersTools Needed Qty To install and use the steady restSteady Rest Follow Rest Carriage & Slide LocksTo install a tool in the tool post Compound Rest Four-Way Tool PostTool Needed Qty To set the compound rest at a certain angleAligning Cutting Tool with Spindle Centerline Below are two common methodsTo align the cutting tool with the tailstock center Top ViewMicrometer Stop Manual FeedCarriage Handwheel Cross Slide HandwheelDetermining Spindle Speed Setting Spindle SpeedSpindle Speed Power Feed Configuration ExamplePower Feed Controls Dial Selection Lever Setting Power Feed RateLeadscrew UP Primary Configuration Secondary ConfigurationAlternate Configuration End GearsEnd-Gear Configuration Example To configure end gears for threading 16 TPITo set levers and dials for 16 TPI ThreadingHeadstock Threading Controls Apron Threading Controls Thread DialThread Dial Chart Thread dial chartPitch Turning Headstock Pitch Turning ControlsFor example To set levers and dials for 1.25 MPLeadscrew UP Coolant System Biological & Poison HazardChip Drawer Chip drawer Model G0746/G0749 Mfg. Since 3/13Accessories G0688-Tool Post GrinderH6095-Digital Readout DRO H7991-Mini Mag Base Indicator SetT10118-Tailstock Digital Readout Schedule MaintenanceCleaning/Protecting Headstock LubricationLubrication Frequency Quick-Change Gearbox To change the headstock oilLongitudinal Leadscrew ApronOne-Shot Oiler Ball Oilers Ball OilersHandling & Care Coolant System Service HazardsAdding Coolant Changing CoolantSee Hazards on To add coolantBringing Lathe Out of Storage Machine StoragePreparing Lathe for Storage Service TroubleshootingSymptom Possible Cause Possible Solution Motor & ElectricalLathe Operation Symptom Possible Cause Possible Solution Cross Slide Backlash AdjustmentCompound Rest Leadscrew End-Play Adjustment Gib AdjustmentTo adjust the cross slide gib Cross Slide GibCompound Slide Gib Saddle GibTo adjust the saddle slide gib BeltsTensioning V-Belts To tension the V-BeltsReplacing V-Belts Brake & Switch Adjusting BrakeGap Removal Gap Insert Removal InstallationReplacing Brake Gap Installation Wiring Wiring Safety InstructionsElectrical Cabinet & Motors Circuit Diagram Control Rod PartsControl Rod & Brake Control Rod & Brake Parts List DescriptionBody G0746-49 Bed & Body Parts List Gears Headstock Gears Parts List DescriptionFeed Direction Control Left Spindle Speed HeadstockControls Headstock Controls Parts List DescriptionChange Quick-Change Gearbox Parts List PR12M EXT Retaining Ring 35MM 100 Model G0746/G0749 Mfg. Since 3/13 Saddle Saddle Parts List Slides REF DescriptionApron 104 Model G0746/G0749 Mfg. Since 3/13Apron Parts List PCAP26M CAP Screw M6-1 X Model G0746/G0749 Mfg. Since 3/13 107 Tailstock Leadscrew Electrical Cabinet 1601 1603 1611 1604 1605 1608 1602 1606 1607 1609 1610Accessories Front Machine Labels Rear Machine Labels Appendix ThreadingDiametral & Modular Pitch Chart Warranty Card CommentsGrizzly INDUSTRIAL, INC BOX BELLINGHAM, WAWarranty & Returns