4.When demolishing and chiseling at “hammering”:

CAUTION:

￿ If the selector lever is switched during motor rotation, the tool can start to rotate abruptly, resulting in unexpected accidents. Make sure to switch the selector lever when the motor is at a complete stop.

￿ If the bull point or cold chisel is used at the position of ”rotation + hammering”, the tool can start to rotate, resulting in unexpected accidents. Make sure that they are used at the position of ”hammering”.

(1) Switching to ”hammering”

(a)Push the button, release lock and turn the selector lever counterclockwise.

(b)Align ▲ of the selector lever and of the lever holder as illustrated in Fig. 6.

(c)Release the button to lock the selector lever.

Selector lever

Lever holder

 

Button

Fig. 6

NOTE:

Turn the selector lever (do not push the button) to check if it is completely locked and make sure that it does not turn.

(2)When fixing working positions of tools such as cold chisel, etc.,

(a)Push the button, release lock and turn the selector lever.

Align ▲ of the selector lever and ￿ of the lever holder as illustrated in Fig. 7.

(b)Release the button to lock the selector lever.

Button

Lever holder

Selector lever

Fig. 7

(c)Turn the grip as illustrated in Fig. 8 and fix the tool to the desired working direction.

Grip

Fig. 8

(d)Switch the selector lever to “hammering” according to the procedures mentioned in the above item (1) and secure the position of the tool.

5.Warming up (Fig. 9)

The grease lubrication system in this unit may require warming up in cold regions.

Position the end of the bit so makes contact with the concrete, turn on the switch and perform the warming up operation. Make sure that a hitting sound is produced and then use the unit.

Fig. 9

CAUTION:

When the warming up operation is performed, hold the side handle and the main body securely with both hands to maintain a secure grip and be careful not to twist your body by the jammed drill bit.

DRILLING AND DRIVING-IN OPERATIONS FOR ANCHORS

1. When a taper shank adapter is used. (Fig. 10)

(1)Install drill bit with taper shank in the taper shank adapter.

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