Grizzly G0755 Power Supply, 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 at 220V..... 9.4 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.

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

1-Phase

Power Supply Circuit

15 Amps

Plug/Receptacle

NEMA 6-15

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 G0755 (Mfg. Since 1/13)

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Contents Model G0755 Page Table of Contents Contact Info IntroductionMachine Description Manual Accuracy Identification Machine Data Sheet Table Info Safety Instructions for Machinery SafetyPage Additional Safety for Mill/Drills Circuit Requirements for Power SupplyAvailability Full-Load Current Rating50 ft Grounding InstructionsExtension Cords Minimum Gauge Size 14 AWGUnpackingInventory SetupNeeded for Setup Basic steps for removing rust preventative CleanupBefore cleaning, gather the following Site Considerations To move your machine into position Lifting & PlacingMachine Base Concrete Anchoring to Floor AssemblyAnchoring to Concrete Floors To join the drill chuck and arbor Joining Drill Chuck ArborLubricating Mill/Drill To test run the machine Test RunSpindle Break-In Inspections AdjustmentsOperation Overview OperationsIdentification Using Coarse DownfeedUsing Fine Downfeed Control Panel Downfeed ControlsRaising/Lowering Headstock Depth StopHeadstock Movement Graduated Dials Table TravelTilting Headstock Axis Handwheels Axis Power FeedON/OFF Switch Tool Needed Qty Installing/Removing ToolingInstalling Tool Holder To install tool holderTools Needed Qty Spindle SpeedRemoving Tool Holder Determining Spindle SpeedSpindle Speed Range Lever Speed Lever Setting Spindle SpeedISO 68 and ISO 32 machine oil AccessoriesH7527 6 Rotary Table Set H7527-6 Rotary Table SetH5930-4-Pc Center Drill Set H5931-4-Pc Center Drill Set G9612-Test IndicatorG5774-R-8 End Mill Holder Set G5641-1-2-3 Blocks G9815-Parallel SetLubrication MaintenanceCleaning Protecting ScheduleTo change the headstock oil Headstock ReservoirTable/Column Ways & Quill Ball OilersQuill Rack & Pinion Table LeadscrewsAxis Leadscrew Troubleshooting ServiceSymptom Possible Cause Possible Solution Adjusting Leadscrew Backlash Adjusting GibsTo tram the spindle with the table Tramming SpindleReplacing Power Feed Carbon Brushes Tightening Return Spring Tension To adjust the return spring tensionWiring Safety Instructions WiringControl Panel Electrical Box WiringMotors & Other Electrical Wiring Electrical Box Axis Motor Axis Limit SwitchElectrical Photos Spindle Motor Control Panel Rear ViewHead PartsDescription Head Parts ListDescription Table & Column Table & Column Parts List 401 406 402 403 405 404 415 411 408 407 409 412 410 413 414 Electrical ComponentsPower Feed Accessories Machine Labels & Cosmetics Comments Warranty CardBOX BELLINGHAM, WA Grizzly INDUSTRIAL, INCWarranty & Returns