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(1) Mount the core bit to the core bit shank. (Fig. 12)
Lubricate the thread of the core bit shank to facilitate
disassembly.
Core bit
(2) Mount the core bit shank to the Rotary Hammer.
(Fig. 13)
(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 left or right so that it does not fall even
if it faces downward. (Fig. 14)
Center pin
Core bit
Core bit shank
Fig. 12
Fig. 13
Guide plate
Core bit tip
Fig. 14
2.
How to bore (Fig. 15)
(1) Connect the plug to the receptacle.
(2) A spring is installed in the center pin. Push it lightly
to the wall or the fl oor straight. Connect all over the
surface of the core bit tip and start operating.
(3) When boring about 3/16" (5 mm) in depth the position
of the hole will establish. 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. 16)
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 manual hammer holding the core
bit, then the thread becomes loose and the core bit
can be removed.
Core bit
shank
English
Fig. 15
Fig. 16
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