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Avoid recharging at high temperatures.

A rechargeable battery will be hot immediately after use. If such a battery is recharged immediately after use, its internal chemical substance will deteriorate, and the battery life will be shortened. Leave the battery and recharge it after it has cooled for a while.

CAUTION:

When the battery charger has been continuosly used, the battery charger will heated, thus constituting the cause of the failures. Once the charging has been completed, give 15 minutes rest until the next charging.

If the battery is rechraged when it is warm due to battery use or exposure to sunlight, the pilot lamp may light in green.

The battery will not be recharged. In such a case, let the battery cool before charging.

BEFORE USE

Check the work area to make sure that it is clear of debris and clutter.

Clear the area of unnecessary personnel. Ensure that lighting and ventilation is adequate.

PRIOR TO OPERATION

CAUTION:

To prevent accidents, make sure to turn the switch off and remove the battery when the drill bits and other various parts are installed or removed.

1.Mounting and dismounting of the bit

(1) Mouting the bit.

Insert a drill bit etc. into the keyless chuck. Firmly grasp the ring and tighten the sleeve by turning it toward the right (in the clock- wise direction as viewed from the front). (See Fig. 6)

NOTE:

If the sleeve becomes loose during opera- tion, tighten it further.

The tightening force becomes stronger when the sleeve is tightended.

Ring

Sleeve

Loosen

Tighten

Fig. 6

(2)Dismounting the bit.

Firmly grasp the ring and loosen the sleeve by turning it toward the left (in the counterclockwise direction as viewed from the front). (See Fig. 6)

CAUTION:

When mounting a bit into the keyless chuck, tighten firmly. If the sleeve is not tight, the bit may slip or fall out, causing injurry.

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Hitachi DV 24DV instruction manual Before USE, Prior to Operation, Mounting and dismounting of the bit