Grizzly g0669X owner manual Spindle Break-In, Recommended Adjustments

16.Start spindle rotation.

17.Test the variable speed dial by turning the speed all the way up for a few seconds, then turning it all the way down.

18.Point the coolant nozzle onto the table, turn the coolant pump switch to "l" or ON, then check for proper operation of the coolant sys- tem.

19.Use the vertical power feed buttons on the control panel to raise and lower the knee to make sure the vertical limit stops (right side of knee) are working properly.

20.Set the longitudinal limit stops and test the longitudinal power feed for proper operation (see Longitudinal Power Feed on Page 26 for detailed instructions).

When all of the Test Run procedures are success- fully completed, proceed to Spindle Break-In.

Spindle Break-In

NOTICE

Successfully complete the spindle break-in procedure to avoid rapid wear of spindle components when placed into operation.

It is essential to closely follow the proper break-in procedures to ensure trouble-free performance of your mill.

To perform the spindle break-in procedure:

1.After successfully completing the Test Run procedures, make sure the mill is turned OFF and the spindle is stopped.

2.Move the spindle speed range selector to the LOW position (refer to Selecting Spindle Speed Range on Page 30 for detailed instruc- tions).

G0669X Precision 10" x 54" VS Milling Machine

3.Turn the machine ON, start spindle rotation, then adjust the spindle speed dial for approxi- mately 280 RPM.

4.Let the mill run at this speed for 20 minutes, then turn the spindle OFF and wait for it to stop.

5.Use the spindle direction switch on the con- trol panel to reverse the spindle direction and start the spindle rotation, then let the mill run for another 20 minutes.

6.Turn the spindle OFF and wait for it to stop, then move the spindle speed range selector to the HIGH position and start spindle rota- tion.

7.Set the spindle speed at approximately 2100 RPM, then repeat Steps 4–5.

8.Turn the mill OFF. The spindle break-in is now complete and the machine is ready for operation.

Recommended

Adjustments

For your convenience, the adjustments listed below have been performed at the factory.

However, because of the many variables involved with shipping, we recommend that you at least verify the following adjustments to ensure the best possible results from your new machine.

Step-by-step instructions for these adjustments can be found in the SERVICE section starting on Page 43.

Factory adjustments that should be verified:

1.Gib adjustment (Page 46).

2.Leadscrew backlash adjustment (Page 47).

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