Selling Point Descriptions - Hitachi H 25PV Technical Data And Service Manual

4-1. Selling Point Descriptions

4-1-1. High chipping and demolishing performance with low vibration and low noise level
The chipping performance is about 1.6 times higher than the similar products thanks to the 4.0 J impact energy
and the efficient striking speed. Even so, the Model H 25PV produces an equivalent vibration level and
remarkably lower sound level than the similar products.
Impact energy per stroke
Ratio of demolished weight
Full-load noise level
No-load noise level
Full-load vibration level
4-1-2. A highly reliable mechanism for prevention of idle hammering results in prolonged service life and
comfortable operation
Conventional mechanism for prevention of idle hammering is to open and close the air holes according to the
movement of the striker. The Model H 25PV has air holes located at the position unaffected by the rebound of the
striker at no load. The air holes are opened and closed by the movement of sleeve (A) provided around the
cylinder that interlocks with the tool and the second hammer to prevent idle hammering. This mechanism
securely prevents idle hammering even in wall hammering works or even if a tool that can cause great rebound on
the striker such as a cutter is used. Thanks to the highly reliable mechanism for prevention of idle hammering, the
service life of the Model H 25PV is prolonged and hammering works requiring much attention not to break the
surroundings can be efficiently performed with the Model H 25PV.
4-1-3. Soft-touch grip for easier handling
The double-layer molded handle and crank case cover consists of a nylon resin base covered with a soft
plastic layer to ensure a soft touch and firm, non-slip grip of the handle and crank case cover.
4-1-4. Simply turning method, variable lock mechanism for easy working-angle adjustment of chisels, etc.
The tool swivel angle can be easily changed in 8 steps by pushing out lock sleeve ahead and then turning grip.
(Fig. 1)
4-1-5. Trigger variable switch with dial speed control
The striking speed can be adjusted by turning the dial of the switch. In addition, a convenient stopper is provided
to fix the trigger at a desired speed level.
HITACHI
Maker Model
•
H 25PV
J 4.0
% 100
dB (A) 87.7
dB (A) 80.8
dB (VL) 122
Grip
Lock sleeve
Fig. 1
--- 2 ---
HITACHI
C
H 30PV
3.9
5.2
63
141
92.4
93
86.8
82.7
121
123