Hitachi DH40MB Instruction Manual And Safety Instructions page 16

English
(2) Mount the core bit shank to the rotary
hammer. (Fig. 16)
(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. 17)
2. How to bore (Fig. 18)
(1) Connect the plug to the receptacle.
(2) A spring is installed in the center pin.
Push it lightly to the wall or the floor
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
receptacle.
3. Dismounting (Fig. 19)
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.
16
the plug from
Center Pin
Core Bit
the
Core Bit
Shank
Fig. 16
Guide Plate
Core Bit Tip
Fig. 17
Fig. 18
Fig. 19