Hitachi DH 50MB instruction manual HOW to USE the Core BIT, Mounting

English

(1) Switching to “rotation + hammering”
For switching to “rotation +
hammering”, follow the same
procedures mentioned in [3. When
drilling at “rotation + hammering”] in	Drill	SDS max
Page 12.	Chuck	Shank	Grip
(2) Attaching chuck adaptor to drill chuck	Chuck
(Fig. 14)
	Adaptor
(a) Attach the chuck adaptor to the drill
		Fig. 14
chuck.

(b)The SDS max shank of the chuck adaptor is equivalent to the drill bit. Therefore, follow the same procedure as [6. How to install 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 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.

Core Bit

(1)Mount the core bit to the core bit shank. (Fig. 15)

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

Core Bit Shank

Fig. 15

15