Hitachi Koki USA DH 24PC instruction manual When driving wood screws Fig, Striking only

English

CAUTION:

◯Exercise care not to excessively prolong driving time, otherwise, the screws may be damaged by excessive force.

◯Apply the rotary hammer perpendicularly to the screw head when driving a screw; otherwise, the screw head or bit will be damaged, or driving force will not be fully transferred to the screw.

◯Do not attempt to use the rotary hammer in the rotation and striking function with chuck adaptor (D) and bit attached.

5.When driving wood screws (Fig. 10)

(1)Selecting a suitable driver bit

Employ phillips screws, if possible, since the driver bit easily slips off the heads of slotted-head screws.

(2)Driving in wood screws

◯Prior to driving in wood screws, make pilot holes suitable for them in the wooden board. Apply the bit to the screw head grooves and gently drive the screws into the holes.

◯After rotating the rotary hammer at low speed for a while until a wood screw in partly driven into the wood, squeeze the trigger more strongly to obtain the optimum driving force.

CAUTION:

◯Exercise care in preparing a pilot hole suitable for the wood screw taking the hardness of the wood into consideration. Should the hole be excessively small or shallow, requiring much power to drive the screw into it, the thread of the

wood screw may sometimes be damaged.

Change Lever

6.Striking only

This rotary hammer can be set to strik- ing only mode by pressing the push button and turning the change lever to

mark. (Fig. 11)

(1)Mount the bull point or cold chisel.

(2)Press the push button and set the

change lever to middle of mark and

mark. (Fig. 12)

Then rotation is released, turn the grip and adjust the cold chisel to desired po- sition. (Fig. 13)

(3)Turn the change lever to mark. (Fig. 11)

Then bull point or cold chisel is locked.

Push button

Fig. 11

Change Lever

Push button

Fig. 12

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