English

Sleeve Ring

 Do not attempt to use the rotary

 

hammer in the rotation and hammering

 

function with drill chuck holder attached.

Fig. 12

CAUTION:

Application of force more than necessary will not only reducing drilling efficiency at all, but will deteriorate the tip edge of the drill bit and reduce the service life of the rotary hammer in addition.

Drill bit may snap off while withdrawing the rotary hammer from the drilled hole. For withdrawing, it is important to use a pushing motion.

Do not attempt to drill anchor holes or holes in concrete with the main unit in the rotation only function.

Do not attempt to use the rotary hammer in the rotation and hammering function with the drill chuck and chuck adaptor attached. This would seriously shorten the service life of every components of the machine.

4.When driving machine screws

In the same manner as the drill bit is installed, install the driter bit to the drill chuck holder.

Apply the driver bit to the groove of screw head and turn on the switch to tighten the screw.

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.

12

5.When driving wood screws

(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.

6.Hammering only

This rotation hammer can be set to hammering only mode by pressing the push button and turning the change lever to the mark with the drill bit holder installed. (Fig. 13)

Change lever

Push button

Fig. 13

(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. 14)