English
◯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 striking 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 (Fig. 11)
First, insert the bit into the socket in the end of chuck adaptor (D).
Next, mount chuck adaptor (D) on the main unit using procedures described in 5 (1), (2), (3), put the tip of the bit in the slots in the head of the screw, grasp the main unit and tighten the screw.
Bit
Socket
Chuck Adaptor (D) | Front Cap |
| |
| Grip |
Fig. 11
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. 11)
(1) Selecting a suitable driver bit
Employ phillips screws, if possible, since the driver bit easily slips off the heads of
(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.
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