Grizzly G0763 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..... 6.6 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.

Model G0763 (Mfg. Since 8/13)

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

208V, 220V, 230V, 240V

Cycle

60 Hz

Phase

1-Phase

Power Supply Circuit

15 Amps

Plug/Receptacle

NEMA 6-15

Cord

“S”-Type, 3-Wire, 14 AWG, 300 VAC

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.

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Contents Model G0763 18 Surface Grinder Page Table of Contents Machine Description Manual Accuracy IntroductionContact Info Identification Basic Controls Master Power SwitchGrinding Wheel & Coolant Controls Handwheels Power Feed ControlsMachine Data Sheet Magnetic Chuck Info Safety Instructions for Machinery SafetyPage Additional Safety for Surface Grinders Availability Power SupplyFull-Load Current Rating Circuit Requirements forExtension Cords Grounding InstructionsMinimum Gauge Size 14 AWG 50 ftNeeded for Setup SetupUnpacking Description QtySmall parts inventory InventoryBefore cleaning, gather the following CleanupBasic steps for removing rust preventative Site Considerations To lift and place the machine Lifting & PlacingTo assemble the surface grinder AssemblyCable orientation on pulley Open End Pulley Page To connect the power supply to the machine Power ConnectionTo test run the machine Test RunPage Operation Overview OperationsAbrasive Type Wheel SelectionGrit Size GradeTo inspect a wheel for damage Wheel Inspection Ring TestTo perform a ring test Wheel Balancing To balance the grinding wheel assemblyTools Needed Qty Mounting/Removing Wheel To mount wheel assemblyMounting Wheel Items Needed QtyPage Wheel Dressing To remove wheel assemblyRemoving Wheel To set up the power feeds to work together Power FeedsTool Needed Qty Model G0763 Mfg. Since 8/13 Friable Surface Grinding Wheels, Aluminum Oxide AccessoriesH5618-Parallels for Magnetic Chuck Cleaning Protecting MaintenanceSchedule DailyOne-Shot Oiler LubricationOil Sump Table Ball Bearing Strips Coolant SystemHazards To lubricate table ball bearing stripsCheck/Adding Coolant Wheel StorageChanging Coolant To change coolantTroubleshooting ServiceSymptom Possible Cause Possible Solution Wiring Safety Instructions WiringWiring Overview Power Feed Control Panel 220 VAC Electrical Cabinet WiringControl Panel PumpElectrical Panel & Control Panel Electrical panel and control panel wiringControl Panel Viewed from behind Control Panel WiringElectrical Cabinet Wiring Power feed controls wiring Model G0763 Mfg. Since 8/13 Power Feed Control PanelSpindle Motor Wiring clockwise Motor Wiring DiagramsCoolant Pump Motor 220V Prewired Coolant Pump Motor Rewired toBase Parts134 ColumnDescription Description Motor & Downfeed SystemSaddle 405 406 402 407 404 419 403 417 409 410 412 416 418 503 505 511 507 508510 502 509 501 Accessories Electrical Cabinet 715 Main Control Panel722 723 733 721 724 Power Feed Control BoxLabels & Cosmetics Comments Warranty CardBOX BELLINGHAM, WA Grizzly INDUSTRIAL, INCWarranty & Returns