Hitachi DH 30PC2 Mode D'emploi page 15

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 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 form 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 the manual hammer hold-
ing the core bit, then the thread be-
comes loose and the core bit can be
removed.
Fig. 17
Core bit shank
Fig. 18
English
15