Selling Point Descriptions - Hitachi DV 24DV Technical Data And Service Manual

4-1. Selling Point Descriptions

(1) Powerful Hitachi motor (65 N•m max.)
The powerful Hitachi motor is most powerful in the class and various materials can be efficiently drilled.
(2) Replaceable carbon brushes for longer motor life
The carbon brush can be replaced from the outside to increase the motor life and to enhance the
maintainability. The carbon brush can be easily removed from the motor with a flat-blade screwdriver as
shown in Fig. 2, and can also be easily and securely mounted to the motor by hooking the claw of the carbon
brush on the connecting portion on the outside of the brush tube.
Claw of
carbon brush
Collar of
carbon brush
Fig. 1
(3) 13 mm (1/2") keyless chuck with positive lock mechanism
The keyless chuck makes replacement of bits easier. Replace the drill bit by simply turning the sleeve with
one hand while holding the ring with the other. (See Fig. 4.)
A lock mechanism is provided to prevent loosening of the chuck during operation.
(4) Convenient switch trigger shape for easy operation
The switch trigger is large enough to operate with two fingers for ease of operation.
Fig. 2
Sleeve
Ring
Loosen
Tighten
Fig. 4
--- 2 ---
Connecting portion at the
outside of brush tube
Fig. 3