Bosch 11250VSR Instrucciones De Funcionamiento Y Seguridad página 7

BM 1619929567 10-03 3/2/04
VARIABLE SPEED CONTROLLED
TRIGGER SWITCH
Your tool is equipped with a variable speed
trigger switch. The tool speed can be
controlled from the minimum to the
maximum nameplate RPM by the pressure
you apply to the trigger. Apply more
pressure to increase the speed and release
pressure to decrease speed. This accurate
speed control enables you to drill without
center punching. It also permits you to use
as a power screwdriver. Bits are available for
driving screws as well as running bolts and
nuts.
REVERSING SWITCH LEVER
This tool is equipped with a rotating brush
reversing system. This results in longer tool life
while maximizing power in both forward and
reverse directions. The reverse switch can be
operated from either the right or left side of the
tool.
FOR FORWARD ROTATION: slide switch to
arrow marked forward (Fig. 2).
FOR REVERSE ROTATION: slide the slide
switch to arrow marked reverse. NOTE: Tool
will not operate in middle position.
FIG. 2
REVERSING
SWITCH
LEVER
SLIP CLUTCH
The tool has an internal preset clutch. The
clutch is set such that sufficient force is
transmitted to the bit for most drilling
conditions but it will slip when bit binds in
the hole or the tool is overloaded. Be aware
that due to required clutch setting, you may
experience a torque reaction an instant
before the clutch slips. This torque reaction
will twist the body of the rotary hammer in
the opposite direction as the bit rotates, i.e.,
counterclockwise. As clutch is slipping, the
bit will most likely stop rotating. When the
binding force on the bit is removed the
clutch automatically resets. If you
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9:40 AM Page 7
Operating Instructions
experience bit binding and clutch begins to
slip, immediately turn the tool "OFF" and
correct the condition leading to the bit
binding.
The tool must be supported with the
auxiliary handle, which can be swiveled 360˚.
To reposition and/or swivel the handle,
loosen the hand grip, move the handle to the
desired position along the barrel and
securely retighten the hand grip (Fig. 3).
FIG. 3
Your drilling depth can be pre-set and/or
repeated by using the depth gauge.
Setting depth: After the auxiliary handle is
installed, make sure the accessory has been
fully inserted into the tool holder before
setting the depth gauge (Fig. 4).
To adjust depth, push the depth gauge
release button, slide the depth gauge to
desired depth and release pressure on
button to lock the depth gauge in place.
DEPTH
GAUGE
FIG. 4
-7-
AUXILIARY HANDLE
HAND GRIP
DEPTH GAUGE
DEPTH
GAUGE
RELEASE
BUTTON