Grizzly G0756 owner manual Drill Press Operations

Page 38

Drill Press Operations

Symptom

Possible Cause

Possible Solution

Breaking tools or cutters.

1.

Spindle speed/feed rate is too fast.

1.

Set spindle speed correctly (Page 25) or use a

 

 

 

 

slower feed rate.

 

2.

Cutting tool getting too hot.

2.

Use coolant or oil for appropriate application.

 

3.

Spindle extended too far down.

3.

Fully retract spindle and lower headstock. This

 

 

 

 

increases rigidity.

 

 

 

 

 

Drilling stops, but the motor

1.

Bit slips in chuck.

1.

Tighten bit; inspect bit for burrs or other obstructions

still operates.

 

 

 

that might interfere with clamping surface.

 

 

 

 

 

The chuck wobbles or is

1.

Foreign material is stuck between

1.

Remove the arbor/chuck assembly and clean the

loose on the spindle shaft.

 

the arbor-to-spindle mating surface.

 

tapered arbor and spindle mating surfaces, then

 

 

 

 

reassemble.

 

2.

Damaged chuck or arbor.

2.

Replace as necessary.

 

 

 

 

 

The spindle does not retract

1.

The quill shaft is gummy with metal

1.

Clean shaft and lubricate with a light coat of oil.

completely in the uppermost

 

chips and oil.

 

 

position or it binds.

 

 

 

 

 

 

 

 

The quill has excessive

1. the quill bearings are worn or

1.

Replace the bearings.

deflection.

 

damaged.

 

 

 

2.

The quill shaft is at fault.

2.

Replace the quill shaft.

 

 

 

 

 

Drill bit wobbles, holes are

1.

Drill bit installed incorrectly.

1.

Remove drill bit and re-install.

oversized.

 

 

 

 

 

 

 

 

 

Workpiece vibrates or

1.

Table locks not tight.

1.

Tighten table release handles (Page 24).

chatters during operation.

2.

Workpiece not securely clamped to

2.

Check that clamping is tight and sufficient for the job.

 

 

table or into drill vice.

 

Make sure drill vice is tight to the table.

 

3.

Spindle speed/feed rate is too fast.

3.

Set spindle speed correctly (Page 25) or use a

 

 

 

 

slower feed rate.

 

4.

Spindle extended too far down.

4.

Fully retract spindle and raise table. This increases

 

 

 

 

rigidity.

 

 

 

 

 

-36-

Model G0756 (Mfg. Since 2/13)

Image 38
Contents Model G0756 Industrial Drill Press Page Table of Contents Contact Info IntroductionMachine Description Manual Accuracy Identification Control Panel Machine Data Sheet Main Specifications Operation Info Safety Safety Instructions for MachineryPage Safety for Drill Presses Full-Load Current Rating Power SupplyAvailability Circuit Requirements forMinimum Gauge Size 14 AWG Grounding InstructionsExtension Cords 50 ftUnpackingInventory SetupNeeded for Setup Inventory see Figure QtyBasic steps for removing rust preventative CleanupBefore cleaning, gather the following Site Considerations Anchoring to Concrete Floors Lifting & PlacingAnchoring to Floor To connect the drill chuck with the arbor Arbor/Chuck AssemblyInitial Lubrication Power Connection To connect the power cord to the machineMaster power switch Model G0756 Mfg. Since 2/13 Test RunEmergency Test Coolant System To test the coolant systemTo perform the spindle break-in procedure Spindle Break-InOperations Overview Tooling Installation RemovalOperations Removing Tooling Manually Installing Tapered ToolingRemoving Tooling with Automatic Drift Raising/Lowering Table Depth StopTable Positioning Rotating TableSelecting Spindle To determine the needed RPMDrilling Mode Automatic Power Downfeed To operate the coolant system Tapping Mode Coolant SystemTo use tapping mode ACcESSORIES G1075-52-PC. Clamping KitG3658-Titanium Drill Bits H7616 H7617H7819-Drill & Tap HSS 24 pc. Set H8262-1⁄2 x MT#4 Keyless Chuck with Integral ShankSchedule MaintenanceCleaning Protecting To change oil in headstock LubricationHeadstock Lubrication Oil Flow Sight GlassChanging Coolant Ball OilersSymptom Possible Cause Possible Solution ServiceTroubleshooting Motor & ElectricalDrill Press Operations To replace the bulb in the work lamp Replacing Lamp BulbTorque Limiter Wiring Wiring Safety InstructionsWiring Overview Component Location IndexHot 220 VAC Power Connection WiringElectric Clutch Wiring PlugMotor & Pump Wiring Spindle motor wiringViewed from behind Control Panel & Limit Switches Electrical Panel Wiring QM5 QM3 QM2 QM1Electrical Wiring Panel Photo Electrical wiring panel Model G0756 Mfg. Since 2/13Parts Table Support & Coolant BreakdownTable Support & Coolant Parts List DescriptionGearbox Breakdown Gearbox Breakdown Gearbox Parts List Spindle Feed Breakdown Spindle Feed Parts List Headstock Breakdown Headstock Breakdown Headstock Parts List Electrical Parts Breakdown Electrical Parts List DescriptionLabels & Cosmetics 506 502 503 501 508 509 507 510 504 511 505 512 513Warranty Card CommentsGrizzly INDUSTRIAL, INC BOX BELLINGHAM, WAWarranty & Returns