Hitachi H 25PV, Technical Data And Service Manual

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HITACHI

H 25PV

4.0

100

87.7

80.8

122

3.9

63

92.4

86.8

121

HITACHI

H 30PV

5.2

141

93

82.7

123

Maker 

•

 Model

J

%

dB (A)

dB (A)

dB (VL)

Impact energy per stroke

Ratio of demolished weight

Full-load noise level

No-load noise level

Full-load vibration level

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.

C

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.

Fig. 1

Grip

Lock sleeve