Grizzly g0746, g0749 owner manual Availability, Full-Load Current Rating, Circuit Requirements for

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SECTION 2: POWER SUppLY

Availability

Before installing the machine, consider the avail- ability and proximity of the required power supply circuit. If an existing circuit does not meet the requirements for this machine, a new circuit must be installed. To minimize the risk of electrocution, fire, or equipment damage, installation work and electrical wiring must be done by an electrican or qualified service personnel in accordance with all applicable codes and standards.

Electrocution, fire, or equipment damage may occur if machine is not correctly grounded and connected to the power supply.

Full-Load Current Rating

The full-load current rating is the amperage a machine draws at 100% of the rated output power. On machines with multiple motors, this is the amperage drawn by the largest motor or sum of all motors and electrical devices that might operate at one time during normal operations.

Full-Load Current Rating

30.35 Amps

The full-load current is not the maximum amount of amps that the machine will draw. If the machine is overloaded, it will draw additional amps beyond the full-load rating.

If the machine is overloaded for a sufficient length of time, damage, overheating, or fire may result— especially if connected to an undersized circuit. To reduce the risk of these hazards, avoid over- loading the machine during operation and make sure it is connected to a power supply circuit that meets the requirements in the following section.

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Circuit Requirements for 220V

This machine is prewired to operate on a 220V power supply circuit that has a verified ground and meets the following requirements:

Nominal Voltage

220V

Cycle

60 Hz

Phase

3-Phase

Power Supply Circuit

40 Amps

Connection Type

Hardwire

A power supply circuit includes all electrical equipment between the breaker box or fuse panel in the building and the machine. The power sup- ply circuit used for this machine must be sized to safely handle the full-load current drawn from the machine for an extended period of time. (If this machine is connected to a circuit protected by fuses, use a time delay fuse marked D.)

For your own safety and protection of property, consult an electrician if you are unsure about wiring practices or electrical codes in your area.

Note: The circuit requirements listed in this man- ual apply to a dedicated circuit—where only one machine will be running at a time. If this machine will be connected to a shared circuit where mul- tiple machines will be running at the same time, consult a qualified electrician to ensure that the circuit is properly sized for safe operation.

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