Hitachi WR9DM2, WR12DM2, WH12DM2, WH9DM2 Switch operation, Tightening and loosening screws

English

Make sure to firmly install the socket in the anvil. If the socket is not firmly installed it might come out and cause injuries.

7.Confirm that the battery is mounted correctly

8.Check the rotational direction

The bit rotates clockwise (viewed from the rear side) by pushing the R-side of the push button. The L-side of the push button is pushed to turn the bit counterclockwise. (See Fig. 16).

(The L and R marks are engraved on the body.)

CAUTION:

R Push button L

PushPush

Fig. 16

●The push button can not be switched while the impact driver is turning. To switch the push button, stop the impact driver, then set the push button.

9. Switch operation

When the trigger switch is depressed, the tool rotates. When the trigger is released, the tool stops.

The rotational speed can be controlled by varying the amount that the trigger switch is pulled. Speed is low when the trigger switch is pulled slightly and increases as the trigger switch is pulled more.

NOTE: A buzzing noise is produced when the motor is about to rotate; this is only a noise, not a machine failure.

10.Tightening and loosening screws

Install the bit that matches the screw, line up the bit in the grooves of the head of the screw, then tighten it.

Push the impact driver just enough to keep the bit fitting the head of the screw.

CAUTION:

Applying the impact driver for too long tightens the screw too much and can break it.

Tightening a screw with the impact driver at an angle to that screw can damage the head of the screw and the proper force will not be transmitted to the screw. Tighten with this impact driver lined up straight with the screw.

11.Number of screw tightenings possible (WH12DM, WH9DM)

Please refer to the table below for the number of screw tightenings possible with one charge.

<WH12DM2> (EB1220BL)

Screw used		No. of tightenings
Wood screw 5/32" ⋅ 2"		Approx. 530
(Soft wood) (ø4	⋅ 50)
Machine screw		Approx. 1170
5/16" ⋅ 5/8" (M8	⋅ 16)

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