(1)Attach the drill chuck to the chuck adapter.
(2)The part of the SDS-plus shank is the same as the drill bit. Therefore, refer to the item of “Mounting the drill bit” for attaching it.
CAUTION
◯Application of force more than necessary will not only expedite the work, but will deteriorate the tip edge of the drill bit and reduce the service life of the rotary hammer in addition.
◯Drill bits 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 machine set 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 adapter attached. This would seriously shorten the service life of every component of the machine.
4.When driving machine screws (Fig. 10)
First, insert the bit into the socket in the end of chuck adapter (D).
Next, mount chuck adapter (D) on the main unit using procedures described in 4 (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.
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 the 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 the chuck adapter
and bit attached.
5.When driving wood screws (Fig. 10)
(1) Selecting a suitable driver bit
Employ plus-head screws, if possible, since the driver bit easily slips off the heads of minus-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 the wood screw is 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.Using depth gauge (Fig. 11)
(1)Loosen the knob on the side handle, and insert the depth gauge into the mounting hole on the side handle.
(2)Adjust the depth gauge position according to the depth of the hole and thighten the knob securely.
7. How to use the drill bit (taper shank) and the taper shank adapter
(1)Mount the taper shank adapter to the rotary hammer (Fig. 12).
(2)Mount the drill bit (taper shank) to the taper shank adapter (Fig. 12).
(3)Turn the switch ON, and drill a hole in prescribed depth.
(4)To remove the drill bit (taper shank), insert the cotter into the slot of the taper shank adapter and strike the head of the cotter with a hammer supporting on a rests (Fig. 13).
HOW TO USE THE CORE BIT (FOR LIGHT LOAD)
When boring penerating large holes use the core bit (for light loads). At that time use with the center pin and the core bit shank provided as optional accessories.
1.Mounting
CAUTION
Be sure to turn power OFF and disconnect the plug from the receptacle.
(1) Mount the core bit to the core bit shank (Fig. 14). Lubricate the thread of the core bit shank to facilitate disassembly.
(2) Mount the core bit to the rotary hammer (Fig. 15).
(3) Insert the center pin into the guide plate until it stops.
(4) Engage the guide plate with the core bit, and turn the guide plate to the left or the right so that it does not fall even if it faces downward (Fig. 16).
2.How to bore (Fig. 17)
(1)Connect the plug to the power source.
(2)A spring is installed in the center pin.
Push it lightly to the wall or the floor straight. Connect the core bit tip flush to the surface and start operating.
(3)When boring about 5 mm in depth the position of the hole will be established. Bore after that removing the center pin and the guide plate from core bit.
(4)Application of excessive force will not only expedite the work, but will deteriorate the tip edge of the drill bit, resulting in reduced service life of the rotary
hammer.
CAUTION
When removing the center pin and the guide plate, turn OFF the switch and disconnect the plug from the receptacle.
3.Dismounting (Fig. 18)
Remove the core bit shank from the rotary hammer and strike the head of the core bit shank strongly two or three times with a hammer holding the core bit, then the thread becomes loose and the core bit can be removed.
LUBRICATION
Low viscosity grease is applied to this rotary hammer so that it can be used for a long period without replacing the grease. Please contact the nearest service center for grease replacement when any grease is leaking form loosened screw.
Further use of the rotary hammer with lock off grease will cause the machine to seize up reduce the service life.
CAUTION
A special grease is used with this machine, therefore, the normal performance of the machine may be badly affected by use of other grease. Please be sure to let one of our service agents undertake replacement of the grease.
