Grizzly G0759 Test Run & Spindle Break-in, To test run and break-in the spindle bearings

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Make sure there are no obstructions around or underneath the spindle.
Do all lubrication procedures highlighted in Lubrication in Section 6: MAINTENANCE on Page 36.

Test Run & Spindle

Break-in

The Model G0704 spindle speed can be set from 50–2250 Rpm. You must follow the proper break- in procedures to ensure the spindle bearings break-in and seat before putting any milling load on the machine.

To test run and break-in the spindle bearings: 1.

2.

3.place the spindle direction selection knob in the "0" (OFF) position and press the emer- gency Stop button (Figure 17)

Spindle RPM

Readout

Emergency

STOP Button

Spindle

Direction

Knob

Variable Spindle

Speed Knob

Figure 17. Test run controls.

4.Connect the mill/drill to the power source.

5. Turn the speed range selector knob to the "L" (low) position (Figure 1 on Page 3) and rotate the variable spindle speed knob all the way to the left (slowest) position.

6.place the spindle direction knob in the "F" (Forward) position. Squeeze the tab on the emergency Stop button, pull it open, then press the green button. The spindle will begin to turn at a low RPM.

Model G0704 (Mfg. Since 08/11)

—When operating correctly, the machine runs smoothly with little or no vibration or rubbing noises.

—Investigate and correct strange or unusual noises or vibrations before operating the machine further. Always disconnect the machine from power when investigating or correcting potential problems.

7.Press the emergency STOP button. The machine should stop.

—If the machine does stop, the emergency STOP button safety feature is working cor- rectly. Continue to Step 8.

—If the machine does not stop, the emer- gency STOP button safety feature is not working correctly. This safety feature must work properly before proceeding with regu- lar operations. Call Tech Support for help.

8.Open the emergency Stop button cover and press the green button to start the spindle.

9.While watching the spindle Rpm readout, turn the variable spindle speed knob until the mill/drill reaches approximately 600 RPM, then let it run for a minimum of 10 minutes.

NOTICE

DO NOT leave the area while break-in pro- cedure is under way. You must be ready to stop the machine if a problem occurs.

10. Increase the speed to 1000 RPM and let it run for another ten minutes.

11.Increase the speed to 2200 RPM and let it run for another ten minutes.

12. Turn the mill/drill OFF.

13.Set the spindle to rotate in the opposite direc- tion, then press the green button and let it run at 1000 RPM for another ten minutes.

NOTICE

Failure to follow start up and spindle break- in procedures will likely cause rapid deteri- oration of spindle and other related parts.

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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 install the drill chuck onto the arbor AssemblyDrill Chuck Arbor To assemble your machineConnecting 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 adjust the Y-axis leadscrew nut Battery ReplacementTo adjust the X-axis leadscrew To replace the digital readout unit batteryTo 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
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