Grizzly G0759 owner manual Spindle Speed Direction, To set the spindle speed

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Spindle Speed and

Direction

Setting the speed on the Model G0704 is a two part process. The gearbox in the headstock has two gear ranges and the motor is a variable speed unit. Together, these two systems provide an overall speed range of 50–2250 Rpm.

When the dial is turned up all the way, the motor draws the full amperage level. When combined with a cutting load, the motor can overheat and become damaged. If high speeds are needed, put the speed range into high "H" then turn the vari- able speed dial down, away from the maximum position. If the maximum Rpm is needed, reduce the cutting load as much as possible and mini- mize the operation time at these speeds.

To set the spindle speed:

1.Determine the appropriate spindle speed for your operation. See Calculating Spindle Speed on Page 26.

2.Select the appropriate speed range using the speed range selector knob (Figure 25). "H" represents the high speed range, which is capable of spindle speeds from 100–2250 RPM. "L" represents the low range, which is capable of spindle speeds from 50–1125 RPM.

Note: To maximize spindle torque, use the low range.

Speed Selection

Knob

Figure 25. Speed selector knob.

Model G0704 (Mfg. Since 08/11)

Note: It may be necessary to rotate the spindle by hand to get the gears to mesh properly.

3.Make sure the work area is clear and that all safety precautions are taken.

4.turn the variable spindle speed knob to the far left (slowest) position, then press the green start button and use the spindle direc- tion selection knob to choose the direction of spindle travel and start spindle rotation (Figure 26).

RPM Readout

 

 

Spindle Direction

Variable Spindle

 

 

Selection Knob

Speed Knob

 

 

 

 

 

 

 

Figure 26. Spindle direction selection knob.

5.Watch the RPM readout and adjust the vari- able spindle speed knob as needed until the desired RPM is reached.

NOTICE

AVOID OVERHEATING MOTOR!

DO NOT operate with variable speed dial at full RPM for than a couple minutes or motor overheating may occur. Instead, achieve the same spindle speed by using the high “H” speed range and reducing the motor RPM by turning the variable speed dial down.

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Contents Model G0759 Machine Data Sheet Table Info Column & Stand Description Electrical Box Headstock Description Chip Guard Labels Model G0704 MILL/DRILL with Stand Page Table of Contents Introduction Manual Accuracy Contact InfoMachine Description Identification G0704 electronic controls identification Electronic Controls IdentificationModel G0704 DRILL/MILL with Stand 50 2250 RPM Accessories Included Safety Instructions for Machinery SafetyChILdREN & BYsTANdERs. Keep­children­and­ Maintain Power CORds. When­ disconnectAdditional Safety for Mill/Drills Power Supply 50 ft Minimum Gauge Size 16 AWGNeeded for Setup UnpackingDescription Qty Contents Qty InventoryNot Shown Cleanup Before cleaning, gather the followingBasic steps for removing rust preventative Site Considerations Weight LoadMoving & Placing Machine Example of a direct mount setupBolting to Concrete Floors Mounting to Shop FloorTo assemble your machine AssemblyTo install the drill chuck onto the arbor Drill Chuck ArborConnecting Power Power ConnectionTo test run and break-in the spindle bearings Test Run & Spindle Break-inOperation Overview OperationsSpeed Range Selector Knob Selects low range Basic ControlsDigital readout unit controls Model G0704 Mfg. Since 08/11 To use the digital readout Digital Readout UnitTo determine the needed spindle speed Calculating Spindle SpeedTo set the spindle speed Spindle Speed DirectionSpindle Height Controls Changing Spindle Position Using Quill Feed LeversDrill Chuck To install the drill chuck and arborTo install the tooling Loading ToolingTo remove the collet Headstock Travel Axis and Rotation To raise or lower the headstockTo tilt the headstock to the left or right Table Travel Longitudinal FeedCross Feed H8179 H8177-Worktable with AngleG5684-R-8 Vertical Collet Rack G9322-Boring Head Combo Set G8683Z-Mini Shop Fox Mobile BaseH5685-4Rotary Table G5758-Tilt x Model G9512 T-Slot NutsMaintenance ScheduleLubrication To lubricate the leadscrews Tools Needed QtyHandwheel gears Troubleshooting ServiceSymptom Possible Cause Possible Solution To adjust the table gibs To adjust the headstock gibsGibs To replace the digital readout unit battery Battery ReplacementTo adjust the Y-axis leadscrew nut To adjust the X-axis leadscrewTo inspect and replace the motor brushes Motor ServiceWiring Safety Instructions WiringWiring Diagram Side panel Rear panelColumn Breakdown PartsColumn Parts List 80-1 92V2 Electrical Box Breakdown & Parts ListHeadstock Breakdown Headstock Parts List Description Chip Guard Breakdown & Parts ListLabels Breakdown & Parts List Model G0704 Mfg. Since 08/11 Comments Warranty CardBOX BELLINGHAM, WA Grizzly INDUSTRIAL, INCWarranty and Returns