Hitachi H 45MRY Technical Data And Service Manual page 7

4-1-6. A highly reliable mechanism for prevention of idle hammering and shock-absorbing mechanism results in
prolonged service life and comfortable operation
The Model H 45MRY 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 the slide sleeve 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 45MRY is prolonged and hammering works requiring much attention not to break the surroundings can
be efficiently performed with the Model H 45MRY.
At the moment of releasing the bull point from the concrete by moving the main body up, the second hammer
contacts hammer holder (A) and the cushion (damper (A)) provided between hammer holder (A) and the front
cover absorbs the hammering force of the second hammer. Thus the Model H 45MRY has greater durability than
the similar products.
4-1-7. D-type side handle with adjustable mechanism for 360û rotation plus positioning from front to rear
The D-type side handle can be adjusted by 360û rotation and also allows convenient operation from front to rear.
This side handle has a two-layer plastic construction (integral molding) made of nylon resin as the base and soft
resin around it for a comfortable cushion grip.
4-1-8. Soft-touch grip for easier handling
The double-layer molded handle consists of a nylon resin base covered with a soft plastic layer to ensure a soft
touch and firm, non-slip grip of the handles.
4-1-9. Simply turning method, variable lock mechanism for easy working-angle adjustment of chisels, etc.
The tool swivel angle can be easily changed in 12 steps by pushing out grip (B) ahead and then turning grip (A).
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