Manual DeWalt DW979 T-1 (page 25 of 97) (English, German, Dutch, Danish, French, Italian, Polish, Portuguese, Swedish, Turkish, Spanish, Norwegian, Finnish)

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ENGLISH

• To charge the battery pack (8), insert it into the

charger (10) as shown and plug in the charger.

Be sure that the battery pack is fully seated in the

charger. The red charging indicator (11) will blink.

After approx. 1 hour, it will stop blinking and

remain on. The battery pack is now fully charged.

The battery pack can be removed at any time or

left in the connected charger indefinitely.

Inserting and removing the battery pack

• Insert the battery pack into the pistol grip (7) until

it clicks in place.

• To remove the battery pack, press the two

release buttons (9) simultaneously and pull the

pack out of the pistol grip (7).

Replacing 1/4" hex. drive accessories (fig. B)

Your DEWALT Screwdriver has a 1/4" hexagonal

drive system. The drive accessory is retained in the

spindle by a ball and a spring which engages in a

groove in the accessory shank.

• To replace a drive accessory (e.g. a bit holder [15])

press the release buttons (12) and pull the depth

adjustment collar (3) from the clutch housing (17).

• Remove the bit holder (15) by pulling it out of the

spindle using a pair of pliers.

• Push the new drive accessory (e.g. a nutsetter [18])

into the spindle until it snaps in place.

• Align the ribs (13) on the inside of the collar (3)

with the grooves (16) in the clutch housing (17)

and snap the collar in place.

Replacing the bit tip (fig. B)

• Proceed as described above. Do not remove the

bit holder (15).

• Simply pull out the bit tip (14). A pair of pliers may

be required.

Setting the driving depth (fig. C)

The depth sensitive feature offers the following

advantages:

- the selected driving depth is repeatable for

structural integrity.

- fasteners with sealing washers are driven

correctly so that no leaks occur.

The driving depth is determined by the position of

the depth locator (4) in relation to the bit, socket or

nutsetter.

Fasteners with sealing washers

• Check the screw manufacturer’s specifications

for the proper sealing washer settings in different

applications.

• Drive a fastener into a waste piece and check if

the fastener is correctly seated.

• If necessary, turn the depth adjustment collar (3)

counterclockwise or clockwise to decrease or

increase the driving depth respectively.

Each “click” of the collar equals a 0.02 mm

change in driving depth; one complete revolution

equals 2.10 mm.

• Drive another fastener and readjust the collar (3)

until the desired setting is achieved.

Fasteners without sealing washers

• Drive a fastener into a waste piece and visually

check the driving depth.

• Increase or decrease the driving depth with the

help of the collar (3).

• If necessary measure the torque by means of

a torque wrench referring to the screw

manufacturer’s torque specifications.

Replacing the depth locator (fig. C)

• Unscrew the dust seal (19).

• Replace the depth locator (4).

• Tighten the dust seal (19).

Setting the direction of rotation (fig. D)

• For forward rotation (screw in), release the

variable speed switch (1) and depress the

forward/reverse slider (2) on the right side of the

tool, as shown.

• For reverse rotation (screw out), release the

variable speed switch (1) and depress the

forward/reverse slider (2) on the left side of the

tool, as shown.

With the forward/reverse slider in central position the

tool is locked in OFF-position.

Always release the variable speed

switch (1) and wait until the motor has

come to a complete standstill before

changing the direction of rotation.

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DeWalt DW979 T-1 Manual

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