Hitachi H90SE Instruction Manual - Page 12

How To Use The Demolition Hammer

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English HOW TO USE THE DEMOLITION HAMMER 1. Pull the trigger switch after applying the tip of the bit to the crushing position. 2. Operate this demolition hammer by utilizing its own weight. the performance will not be better even if it is pressed or thrust forcibly against the work surface. Hold this demolition hammer with a force just sufficient to counteract the reaction. This demolition hammer is equipped with a spring cushion on the handle so that chipping vibration is not conveyed to the operator. Operate this demolition hammer without forcing the handle too strongly. NOTE: Sometimes the power tool does not begin the striking stroke even when the motor rotates because oil has become thick. If the power tool is used at low temperatures or if it is used after a long idle time, this demolition hammer should be kept running in for about five minutes in order to warm it up. CAUTION: After long time of use, the front cover becomes hot. Therefore, be careful not to burn your hands. Fig. 7 12

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English
12
HOW TO USE THE DEMOLITION HAMMER
1.
Pull the trigger switch after applying the tip of the bit to the
crushing position.
2.
Operate this demolition hammer by utilizing its own weight.
the performance will not be better even if it is pressed or
thrust forcibly against the work surface. Hold this demolition
hammer with a force just sufficient to counteract the reaction.
This demolition hammer is equipped with a spring cushion
on the handle so that chipping vibration is not conveyed to
the operator.
Operate this demolition hammer without forcing the handle
too strongly.
NOTE:
Sometimes the power tool does not begin the striking
stroke even when the motor rotates because oil has
become thick.
If the power tool is used at low temperatures or if it is
used after a long idle time, this demolition hammer
should be kept running in for about five minutes in order
to warm it up.
CAUTION: After long time of use, the front cover becomes hot.
Therefore, be careful not to burn your hands.
Fig. 7