Grizzly G0755 Grounding Instructions, Extension Cords, Minimum Gauge Size 14 AWG, 50 ft

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Grounding Instructions

This machine MUST be grounded. In the event of certain malfunctions or breakdowns, grounding reduces the risk of electric shock by providing a path of least resistance for electric current.

The power cord and plug specified under “Circuit Requirements for 220V” on the previous page has an equipment-grounding wire and a ground- ing prong. The plug must only be inserted into a matching receptacle (outlet) that is properly installed and grounded in accordance with all local codes and ordinances (see figure below).

GROUNDED

6-15 RECEPTACLE

Current Carrying Prongs

6-15 PLUG

Grounding Prong

Figure 1. Typical 6-15 plug and receptacle.

Serious injury could occur if you connect the machine to power before completing the setup process. DO NOT connect to power until instructed later in this manual.

No adapter should be used with the required plug. If the plug does not fit the available receptacle, or the machine must be reconnected for use on a different type of circuit, the reconnection must be made by a qualified electrician and comply with all local codes and ordinances.

Serious injury could occur if you connect the machine to power before completing the setup process. DO NOT connect to power until instructed later in this manual.

Improper connection of the equipment-grounding wire can result in a risk of electric shock. The wire with green insulation (with or without yellow stripes) is the equipment-grounding wire. If repair or replacement of the power cord or plug is nec- essary, do not connect the equipment-grounding wire to a live (current carrying) terminal.

Check with a qualified electrician or service per- sonnel if you do not understand these grounding requirements, or if you are in doubt about whether the tool is properly grounded. If you ever notice that a cord or plug is damaged or worn, discon- nect it from power, and immediately replace it with a new one.

Extension Cords

We do not recommend using an extension cord with this machine. If you must use an extension cord, only use it if absolutely necessary and only on a temporary basis.

Extension cords cause voltage drop, which may damage electrical components and shorten motor life. Voltage drop increases as the extension cord size gets longer and the gauge size gets smaller (higher gauge numbers indicate smaller sizes).

Any extension cord used with this machine must contain a ground wire, match the required plug and receptacle, and meet the following require- ments:

Minimum Gauge Size

14 AWG

Maximum Length (Shorter is Better)

50 ft.

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Model G0755 (Mfg. Since 1/13)

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Contents Model G0755 Page Table of Contents Introduction Machine Description Manual AccuracyContact Info Identification Machine Data Sheet Table Info Safety Safety Instructions for MachineryPage Additional Safety for Mill/Drills Power Supply AvailabilityFull-Load Current Rating Circuit Requirements forGrounding Instructions Extension CordsMinimum Gauge Size 14 AWG 50 ftSetup Needed for SetupUnpackingInventory Cleanup Before cleaning, gather the followingBasic steps for removing rust preventative Site Considerations Lifting & Placing To move your machine into positionAnchoring to Floor Assembly Anchoring to Concrete FloorsMachine Base Concrete Joining Drill Chuck Arbor Lubricating Mill/DrillTo join the drill chuck and arbor Test Run To test run the machineInspections Adjustments Spindle Break-InOperations Operation OverviewUsing Coarse Downfeed Using Fine DownfeedControl Panel Downfeed Controls IdentificationDepth Stop Headstock MovementRaising/Lowering Headstock Table Travel Tilting HeadstockGraduated Dials Axis Power Feed ON/OFF SwitchAxis Handwheels Installing/Removing Tooling Installing Tool HolderTo install tool holder Tool Needed QtySpindle Speed Removing Tool HolderDetermining Spindle Speed Tools Needed QtySetting Spindle Speed Spindle Speed Range Lever Speed LeverAccessories ISO 68 and ISO 32 machine oilH7527-6 Rotary Table Set H7527 6 Rotary Table SetG9612-Test Indicator G5774-R-8 End Mill Holder SetG5641-1-2-3 Blocks G9815-Parallel Set H5930-4-Pc Center Drill Set H5931-4-Pc Center Drill SetMaintenance Cleaning ProtectingSchedule LubricationHeadstock Reservoir To change the headstock oilBall Oilers Table/Column Ways & QuillTable Leadscrews Quill Rack & PinionAxis Leadscrew Service TroubleshootingSymptom Possible Cause Possible Solution Adjusting Gibs Adjusting Leadscrew BacklashTramming Spindle To tram the spindle with the tableReplacing Power Feed Carbon Brushes To adjust the return spring tension Tightening Return Spring TensionWiring Wiring Safety InstructionsElectrical Box Wiring Control PanelMotors & Other Electrical Wiring Axis Motor Axis Limit Switch Electrical PhotosElectrical Box Control Panel Rear View Spindle MotorParts HeadHead Parts List DescriptionDescription Table & Column Table & Column Parts List Electrical Components 401 406 402 403 405 404 415 411 408 407 409 412 410 413 414Power Feed Accessories Machine Labels & Cosmetics Warranty Card CommentsGrizzly INDUSTRIAL, INC BOX BELLINGHAM, WAWarranty & Returns