Grizzly G9749 Installing/Removing Drill Bits, Changing Speeds, To change speed of the drill press

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Installing/Removing

Drill Bits

Any drill bit you install in the chuck must be tight enough that it will not come loose during opera- tion.

To install a drill bit into the chuck:

1.UNPLUG THE DRILL PRESS!

2.Open the chuck jaws wide enough to accept the drill bit shank.

3.Insert the drill bit as far as possible into the chuck WITHOUT allowing the chuck jaws to touch the fluted or cutting portion of the drill bit, then hand tighten the chuck.

Note: Make sure small drill bits are not trapped between the edges of two jaws. If they are, reinstall the drill bit properly before use.

4.Use the included chuck key to fully tighten the chuck around the drill bit.

To remove a drill bit from the chuck:

1.UNPLUG THE DRILL PRESS!

2.Use the chuck key to open the chuck, and catch the drill bit with a rag to protect your hands.

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Changing Speeds

NOTICE

DO NOT attempt to change speeds unless the drill press is ON. Attempting to rotate the speed control when the drill press is OFF could damage the variable speed mechanism.

The Model G9749 drill press is capable of variable speeds from 300-2000 RPM. Refer to Choosing Speeds on Page 19 for the correct speed for the cutting tool and material being used.

To change speed of the drill press:

1.Turn the drill press ON.

2.Loosen the speed control locking knob (see Figure 14).

Speed Control

Helm

Locking Knob

and Plate

Figure 14. Speed control handles and helm.

3.Using the small reference mark or notch on the outside ring of the speed control helm as a guide, SLOWLY rotate the speed control to the desired speed.

Note: Rotating the speed control helm too fast will greatly increase the wear on the drive belts and pulleys.

4.Tighten the speed control locking knob to hold the helm in place against machine vibra- tion.

G9749 Variable Speed Drill Press

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Contents Model G9749 Variable Speed Drill Press Page Table of Contents Contact Info IntroductionForeword Machine Data Sheet Other Related Information Identification G9749 Variable Speed Drill Press Safety Instructions for Machinery Additional Safety for Drill Presses Circuit Requirements 110/220V OperationAmperage Draw Circuit RequirementsGrounding Extension Cords220V Operation 110V OperationSetup Setup SafetyItems Needed for Setup Site ConsiderationsUnpacking Lifting To unpack and move the drill pressTo mount the drill press to the floor Mounting to Shop FloorBolting to Concrete Floors Inventory Clean Up Contents Figure QtyAssembly To install the rapid downfeed handlesTo install the table crank handle Components and Hardware Needed QtyTest Run Spindle Break-In To test run the machineOperations Installing Drill ChuckTo install the drill chuck onto the arbor Installing/Removing Drill Bits To install a drill bit into the chuckChanging Speeds To remove a drill bit from the chuckLubrication Suggestions Using the Drill Bit Speed ChartChoosing Speeds To use the quill lock DrillingQuill Travel To use the depth gauge and depth stop To use the rapid downfeed controlTo use the fine downfeed control Table Adjustments To adjust table height and rotationHeadstock Rotation To rotate the headstockRemoving/Installing Arbor and Chuck To remove the arbor and chuck from the spindleTo install the arbor into the spindle with the drawbar To remove the chuck from the arborG1076-52-PC. Clamping Kit AccessoriesH5685-4Rotary Table Maintenance ScheduleUnpainted Cast Iron LubricationService About ServiceTroubleshooting Symptom Possible Cause Possible SolutionDrill Operations G9749 switch wiring Electrical ComponentsWiring Diagram Headstock Parts Breakdown Headstock Components Parts Breakdown Variable Speed Parts Breakdown Base Parts Breakdown Parts List DescriptionFlat Washer 1/4 Label Placement 403 401 405 404 400 402 406Warranty and Returns Page Page
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