How To Use The Core Bit - Hitachi DH 45ME Handling Instructions Manual

English
WARNING
During operation, be sure to grip the handle and the side handle fi rmly to prevent
your body from swaying.
(1) Switching to "rotation + hammering"
For switching to "rotation + hammering", follow the
same procedures mentioned in [3. When drilling at
"rotation + hammering"] in page 29.
(2) Attaching chuck adapter to drill chuck (Fig. 16)
(a) Attach the chuck adapter to the drill chuck.
(b) The SDS max shank of the chuck adapter is
equivalent to the drill bit. Therefore, follow
the same procedure as [6. How to install
tool] in page 26 for attaching and detaching.
(3) Drilling
(a) Even if you apply more-than-required pressure to the machine body, drilling can
never be performed as quickly as you expect. Applying more force or pressure to the
machine body than what is needed, on the contrary, damages the drill tip, resulting in
the declined working effi ciency and shortened life of this machine.
(b) A drill can snap sometimes when drilling is almost fi nished. It is important to relax
your thrusting pressure when drilling is nearing the end.

HOW TO USE THE CORE BIT

When boring penetrating large holes use the core bit. 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. 17).
Lubricate the thread of the core bit shank
to facilitate disassembly.
(2) Mount the core bit shank to the rotary
hammer (Fig. 18).
(3) Insert the center pin into the guide plate until it stops.
SDS max shank
Drill
chuck
Core bit
Fig. 17
32
Grip
Chuck
adaptor
Fig. 16
Core bit
shank
Fig. 18