Grizzly G0756 owner manual Spindle Break-In, To perform the spindle break-in procedure

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Spindle Break-In

Before subjecting the spindle to operational loads, it is essential to complete the break-in process. This helps ensure maximum life of spindle bear- ings and other precision components by thor- oughly lubricating them before placing them under load.

After spindle break-in is complete, we recommend changing headstock and gearbox oil to remove any metal particles or debris that are present from the assembly and break-in process.

The break-in must be performed in succession with the Test Run procedure described in this manual, as the steps in that procedure prepare the drill press for the break-in process.

DO NOT perform this procedure indepen- dently of the Test Run section. The drill press could be seriously damaged if the controls are set differently than instructed in that section.

Model G0756 (Mfg. Since 2/13)

To perform the spindle break-in procedure:

1. Move the drilling & tapping switch to the drill- ing position (see Figure 15).

Drilling and

Tapping

Switch

Spindle

Start Button

Figure 15. Drilling/tapping switch.

2.Position the speed control levers for 440 RPM.

3.Press the spindle start button.

4.Allow the machine to run for 10 minutes.

5.Press the spindle stop button.

6.Position the speed control levers for 870 RPM, and allow machine to run for 10 min- utes.

7. Press the OFF button, and adjust the speed control levers for 440 RPM.`

8.Press the spindle start button.

9. Press the button on the end of the downfeed handle to reverse spindle rotation.

10. Run the machine at 440 RPM and then 870 RPM for 10 minutes each, as described above.

11.Run the machine at 440 RPM for another 15 minutes to allow it cool down.

Congratulations! Spindle break-in is complete. We recommend changing the headstock and gearbox oil before operating the machine further (refer to lubrication on Page 33).

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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 Instructions for Machinery SafetyPage Safety for Drill Presses Circuit Requirements for Power SupplyAvailability Full-Load Current Rating50 ft Grounding InstructionsExtension Cords Minimum Gauge Size 14 AWGInventory see Figure Qty SetupNeeded for Setup UnpackingInventoryBasic 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 To connect the power cord to the machine Power ConnectionTest Run Master power switch Model G0756 Mfg. Since 2/13Emergency To test the coolant system Test Coolant SystemSpindle Break-In To perform the spindle break-in procedureOperations Overview Tooling Installation RemovalOperations Removing Tooling Manually Installing Tapered ToolingRemoving Tooling with Automatic Drift Rotating Table Depth StopTable Positioning Raising/Lowering TableTo determine the needed RPM Selecting SpindleDrilling Mode Automatic Power Downfeed To operate the coolant system Tapping Mode Coolant SystemTo use tapping mode G1075-52-PC. Clamping Kit ACcESSORIESH7616 H7617 G3658-Titanium Drill BitsH8262-1⁄2 x MT#4 Keyless Chuck with Integral Shank H7819-Drill & Tap HSS 24 pc. SetSchedule MaintenanceCleaning Protecting Oil Flow Sight Glass LubricationHeadstock Lubrication To change oil in headstockBall Oilers Changing CoolantMotor & Electrical ServiceTroubleshooting Symptom Possible Cause Possible SolutionDrill Press Operations To replace the bulb in the work lamp Replacing Lamp BulbTorque Limiter Wiring Safety Instructions WiringComponent Location Index Wiring OverviewPlug Power Connection WiringElectric Clutch Wiring Hot 220 VACSpindle motor wiring Motor & Pump WiringViewed from behind Control Panel & Limit Switches QM5 QM3 QM2 QM1 Electrical Panel WiringElectrical wiring panel Model G0756 Mfg. Since 2/13 Electrical Wiring Panel PhotoTable Support & Coolant Breakdown PartsDescription Table Support & Coolant Parts ListGearbox Breakdown Gearbox Breakdown Gearbox Parts List Spindle Feed Breakdown Spindle Feed Parts List Headstock Breakdown Headstock Breakdown Headstock Parts List Electrical Parts Breakdown Description Electrical Parts List506 502 503 501 508 509 507 510 504 511 505 512 513 Labels & CosmeticsComments Warranty CardBOX BELLINGHAM, WA Grizzly INDUSTRIAL, INCWarranty & Returns