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OPERATION AND USE
IMPORTANT – Check before plugging in
that the mains voltage agrees with the
voltage specified on the rating plate of the
machine.
SWITCH
The switch ✪✌ on both of these tools are
fitted with a locking device ✫✌ allowing the
tool to be operated for long periods of time
without interruptions. Fig.2.
Before inserting the plug into the socket,
check that the switch is in the unlocked
position.When the tool is not to be used for
long periods remember to leave the switch
device in the unlocked position.
SPEED CHANGE
Both of the drills in this range are equipped
with a two speed mechanical gear change.
The two different speeds are engaged by
rotating the control knob located on the left
hand side of the machine head. The
markings I and II on the knob indicate
respectively the slow and fast speeds.
THIS OPERATION SHOULD BE
PERFORMED WHEN THE MACHINE IS
STOPPED.
An arrow on the machine body indicates the
engaged speed.
SPEED REGULATION
A speed regulation system has been fitted
to both models. Speed regulation is by
means of the knob ✬✌ and trigger ✪✌.
Turn the knob ✬✌ in the “–” direction and
squeeze the trigger ✪✌ slowly results in
speeds from 0 to the slowest pre-selected
speed. Turn the knob ✬✌ in the “+”
direction and squeeze the trigger ✪✌
slowly results in speeds from 0 to the fastest
pre-selected speed. For variable speed set
knob ✬✌ at the maximum position and use
the trigger ✪✌ only.
An electronic speed regulation system has
been fitted to model HD1100VC with the
following specifications:
– “Soft Start” starting: allows gradual chuck
rotation starting and reaching of
maximum
pre-fixed speed in three seconds.
– “Constant Electronic”: maintains the
preset rotation speed constant, whatever
the diameter of the bit inserted on the
chuck and the friction generated by the
drilled material.
Fig.2
✫✌
– Current limiter: a safety device which
reduces the electric power supply of the
tool, when there is an overload of 1600W.
PERCUSSION DRILLING SYSTEM
Both of these drills can pass from normal
drilling to percussion drilling, simply by
moving the lever fitted at the head of the
drill. It is possible to turn the percussion
system on and off, even whilst the machine
is running and without the risk of causing
damage to the mechanism.
Drilling position: rotate the lever to the
right, ie. towards the drill bit symbol.
Percussion drilling position: rotate the lever
to the left, ie. towards the hammer symbol.
Only use the percussion in the forward
rotation.
CHANGING THE DIRECTION OF
ROTATION
Both drills are equipped with a direction
inverting device ✮✌in order to be able to
rotate the machine chuck either to the right
or to the left. THIS OPERATION SHOULD
BE PERFORMED WHEN THE MACHINE
IS STOPPED.
✮✌
✬✌
✪✌