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How to make the batteries perform longer.

(1)Recharge the batteries before they become completely exhausted.

When you feel that the power of the tool becomes weaker, stop using the tool and recharge its battery. If you continue to use the tool and exhaust the electric current, the battery may be damaged and its life will become shorter.

(2)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.

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

1.Confirming condition of the environment:

Confirm that the work site is placed under appropriate conditions conforming to prescribed precautions.

2. Attaching the side handle (Fig. 7)

(1)Turn the grip of the side handle to loosen it and push it in until it comes in contact with the housing.

(2)Adjust the side handle to the angle that allows the easiest use, then turn the side handle's grip firmly to lock it place.

3. Mounting the drill bit (Fig. 8)

(1)To attach a drill bit (SDS-plus shank), fully pull the grip in the direction of the arrow as shown in Fig. 8 and insert the drill bit as far as it will go while manually turning.

(2)By releasing the grip, the drill bit will be secured.

(3)To remove the drill bit, fully pull the grip in the direction of the arrow and pull out the drill bit.

4.Installation of dust cup or dust collector (B) (Optional accessories) (Fig. 9, Fig. 10)

When using a rotary hammer for upward drilling operations attach a dust cup or dust collector (B)

to collect dust or particles for easy operation.

Installing the dust cup

Use the dust cup by attaching to the drill bit a shown in Fig. 9.

When using a bit which has big diameter, enlarge the center hole of the dust cup with this rotary ham- mer.

Housing

Side handle

Loosen Tighten

Fig. 7

Grip

Front cap

Part of SDS-plus shank

Drill bit

Fig. 8

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Hitachi Koki USA cordless hammer instruction manual Before USE, Prior to Operation, Confirming condition of the environment