Jet Tools J-4300A Adjusting disc sander table, Use of the Miter Gauge, To adjust to horizontal

To adjust to horizontal:

1.Unlock both lock bolts.

2.Move arm to horizontal until it contacts its stop. (See Figure 3.)

3.Tighten both lock bolts and replace arbor cover.

Figure 3: Arm at horizontal – note that the table is removed. The table may be removed or left in position, and may also be set to any angle to allow horizontal sanding of various angles.

To adjust arm to any angle between vertical and horizontal:

1.Unlock both lock bolts.

2.Use a machinist's protractor and level to set the arm to the required angle.

3.Tighten both lock bolts and replace arbor cover.

6.5Adjusting disc sander table

Never adjust the table angle while the sander is running. Always turn off the motor before adjusting table angle.

1.Unlock the two locking knobs underneath the table at each end. (See Figure 4.)

2.Using the pointer and scale, set the angle to any required angle between 20° upward and 45° downward.

3.Lock the two locking knobs underneath the table.

Figure 4: Disc sander table adjustment

6.6Use of the Miter Gauge

The miter gauge can be used on either the disc or belt surfaces to sand accurate angles on workpieces. When using the gauge alone, you sand a single angle. However, by tilting the table and using the miter gauge in combination with the table tilt, it is possible to sand compound angles, as well.

When grinding a compound angle you should always check the accuracy of your setup by sanding a piece of scrap material before doing any finish sanding on the actual workpiece.

1.Set the angle you wish to sand using the scale on the miter gauge.

2.Tighten the miter gauge securely so the miter reference surface will not move while you are sanding.

3.Place the workpiece against the miter reference surface and slide it along the reference surface and into the sanding disc or belt. The basic method is shown in Figure 5, below.

Figure 5: Use of the miter system

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