English

8. Mounting the bit

1 – 1.5 mm

For details, refer to the item “Mount- ing and dismounting the hex-socket or the bit”.

Self-drilling Sub-Stopper (A)

screw

Fig. 6

HOW TO USE THE SCREW DRIVER

1.Switch operation and rotational speed adjustment

Bit rotational speed can be regulated between 0 – 2600/min (W6VB2) or 0 – 1700/ min (W8VB) varying the degree by which the trigger switch is pulled. Rotational speed increases as the trigger switch is pulled, and reaches a maximum speed of 2600/min (W6VB2) or 1700/min (W8VB) when the trigger switch is pulled fully.

To facilitate continuous operation, pull the trigger switch and depress the switch stopper. The switch will then remain ON even when the finger is removed. By pulling the trigger switch again, the switch stopper is disengaged and the switch is turned OFF when the trigger switch is released.

2.Screw driver operation

When the switch is turned ON, the motor starts to run but the hex-socket (or the bit) does not rotate. Attach the hex-socket to the screw head groove, and push the screw driver against the screw. The hex-socket then rotates, tightening the screw.

CAUTION

Ensure that the screw driver is held truly perpendicular to the head of the screw. If held at an angle, the driving force will not be fully transferred to the screw, and the screw head and/or hex-socket will be damaged. Hex-socket rotation stops when pushing force is released.

3.Direction of hex-socket rotation

The hex-socket rotates clockwise (viewed from the rear side) when the revers- ing switch lever is set to the “R” side position. When the lever is set to the “L” side position, the hex-socket rotates counterclockwise, and can be used to loosen and retract screws.

CAUTION

Never change the direction of hex-socket rotation while the motor is running. To do so would seriously damage the motor. Turn the power switch OFF before changing the direction of hex-socket rotation.

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Hitachi W 8VB, W 6VB2 HOW to USE the Screw Driver, Mounting the bit, Switch operation and rotational speed adjustment