Grizzly G0641 Lowering Speeds, To adjust the lowering and raising rate of the saw blades

adjusting lowering speeds

Lowering Speeds

The lowering speeds of the hold-downs and blades are independently adjustable. The goal is to synchronize these rates so that the hold-downs grip the workpiece before the blades begin the cut. After the cut is complete and the blades are fully raised, the hold-downs will raise and release the workpiece.

When making adjustments, first adjust the lower- ing speed of the blades, then adjust the lowering speed of the hold-downs.

To adjust the lowering and raising rate of the saw blades:

1.DISCONNECT SAW FROM POWER!

When properly adjusted, the hold-downs prevent the workpiece from being drawn into the blades or thrown from the saw when cut- ting. Always make sure the hold-downs are properly adjusted for the workpiece and that they securely clamp the workpiece before the blades begin the cut.

2.Loosen the jam nuts on the blade lowering and raising speed knobs (see Figure 17).

3.Secure a scrap piece of the same material you will use for the production run under the hold-downs, then lower and secure the front guard.

4.Connect the saw to power, turn the motor on, and use the foot pedal actuator to make test cuts.

5.Adjust the lowering and raising speeds of the blades to produce cuts that are without tear out (too fast) and without burning (too slow).

Note: Turning the speed knob in (clockwise) decreases the speed, and turning out (coun- terclockwise) increases it.

6.Continue to make adjustments and test cuts until you are satisfied with the lowering and raising speeds of the blade, then re-tighten the jam nut to secure the setting.

To adjust the lowering rate of the hold- downs:

1.DISCONNECT SAW FROM POWER!

2.Remove the two thumb screws from the front guard and raise it to the upper position.

Lowering Speed Knob

Raising Speed Knob

Figure 17. Saw blade lowering and raising speed controls (on right side of machine).

-20- G0641 Double Miter Saw