DRILLING TO A SPECIFIC DEPTH (Fig. V)

Drilling a blind hole (not all the way through workpiece) to a given depth can be done two ways:

Workpiece method

1.Mark the depth (1) of the hole on the side of the workpiece.

2.With the switch “OFF”, bring the drill bit down until the tip is even with the mark.

3.Hold the feed handle (2) at this position.

4.Spin the lower nut (3) down to contact the depth stop

(4) on the head.

5.Spin the upper nut (5) down and tighten against the lower nut (3).

6.The drill bit will now stop after traveling the distance marked on the workpiece.

Depth scale method

Note: With the chuck quill assembly fully retracted the tip of the drill bit must be just slightly above the top of the workpiece.

1.With the switch “OFF”, turn the feed handle (2) until depth stop (4) points to the desired depth on the depth scale (6) and hold the feed handle in that position.

2.Spin the lower nut (3) down to contact the depth stop

(4).

3.Spin the upper nut (5) against the lower stop nut (3) and tighten.

4.The drill bit will stop after traveling the distance selected on the depth scale.

Fig. V

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6

3

4

2

1

English

Fig. W

3

2

1

REMOVING CHUCK AND ARBOR (Fig. X)

1.With the switch “OFF” and the unit unplugged, adjust the depth stop nut (1) to hold the drill at a depth of three inches. (See instructions for “LOCKING CHUCK AT DESIRED DEPTH”).

2.Align the key holes in the spindle (2) and quill (3) by rotating the chuck by hand.

3.Insert the key wedge (4) into the key holes (2 & 3).

4.Tap the key wedge (4) lightly with a plastic tipped hammer, until the chuck and arbor fall out of the spindle.

NOTE: Place one hand below the chuck to catch it when it falls out.

Fig. X

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13

4

LOCKING THE CHUCK AT THE DESIRED DEPTH (Fig. W)

1.With the switch “OFF”, turn the feed handles until the chuck (1) is at the desired depth. Hold the feed handles at this position.

2.Turn the stop nut (2), located under the depth stop (3), counterclockwise and upwards, until it is against the depth stop.

3.The chuck will now be held at this position when the feed handles are released.

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Image 17
Hitachi B 16RM Drilling to a Specific Depth Fig, Workpiece method, Depth scale method, Removing Chuck and Arbor Fig