Hitachi DH 40MR instruction manual Using Drill CHUCK, Chuck Adaptor, Mounting

English

USING DRILL CHUCK, CHUCK ADAPTOR

Note that this machine can be used at “rotation only” if separately sold parts such as drill chuck and chuck adaptor are attached. Use it with the selector lever positioned at “rotation + hammering”.

WARNING:

During operation, be sure to grip the handle and the side handle firmly 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	Drill
Page 12.		SDS max
(2) Attaching chuck adaptor to drill chuck (Fig. 14)	Chuck	Shank	Grip
(a) Attach the chuck adaptor to the drill chuck.	Chuck
(b) The SDS max shank of the chuck adaptor is	Adaptor
equivalent to the drill bit. Therefore, follow
the same procedure as [6. How to install		Fig. 14
tool] in Page 10 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 efficiency and shortened life of this machine.

(b)A drill can snap sometimes when drilling is almost finished. It is important to relax your thrusting pressure when drilling is nearing the end.

HOW TO USE THE CORE BIT
When boring penetrating large hole use the core	Core Bit
bit. At that time use with the center pin and the
core bit shank provided as optional accessories.
1. Mounting
CAUTION:	Core Bit Shank
Be sure to turn power OFF and disconnect the
plug from the receptacle.

(1) Mount the core bit to the core bit shank. (Fig.

15) Fig. 15

Lubricate the thread of the core bit shank to facilitate disassembly.

15