English
35
HOW TO USE THE CORE BIT (FOR LIGHT LOAD)
When boring penetrating 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
fl
oor straight.
Connect the core bit tip
fl
ush 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.
CAUTION
○
When removing the center pin and the guide
plate, turn OFF the switch and disconnect the
plug from the receptacle.
○
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.
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.
Fig. 16
Guide plate
Center pin
Core bit tip
Core bit
Fig. 17
Core bit
shank
Fig. 18
Fig. 15
Fig. 14
Core bit
Thread
Core bit
shank
000Book̲DH24PG2̲ChS.indb 35
000Book̲DH24PG2̲ChS.indb 35
2019/02/07 14:45:18
2019/02/07 14:45:18
