BM 1619929562 10/03 10/2/03 3:01 PM Page 8
Operating Instructions
VARIABLE SPEED CONTROLLED TRIGGER SWITCH
Your tool is equipped with a variable speedpressure to decrease speed. This accurate
trigger switch. The tool speed can bespeed control enables you to drill without
controlled from the minimum to thecenter punching. It also permits you to use
maximum nameplate RPM by the pressureas a power screwdriver. Bits are available for
you apply to the trigger. Apply moredriving screws as well as running bolts and
pressure to increase the speed and releasenuts.
FORWARD/REVERSING LEVER & TRIGGER LOCK
Your tool is equipped with a forward/reverse rotation move the lever to the far
reversing lever and trigger lock locatedright. To activate trigger lock move lever to
above the trigger (Fig. 1). This lever wasthe center off position.
designed for changing rotation of the chuck,
and for locking the trigger in an OOFF�Do not change direction of!CAUTION
position to help prevent accidental startsrotation until the tool
and accidental battery discharge. Forcomes to a complete stop. Shifting during
forward rotation, (with chuck pointed awayrotation of the chuck can cause damage to
from you) move the lever to the far left. Forthe tool.
SLIP CLUTCH
The tool has an internal preset clutch. Thecounterclockwise. As clutch is slipping, the
clutch is set such that sufficient force isbit will most likely stop rotating. When the
transmitted to the bit for most drillingbinding force on the bit is removed the
conditions but it will slip when bit binds inclutch automatically resets. If you
the hole or the tool is overloaded. Be awareexperience bit binding and clutch begins to
that due to required clutch setting, you mayslip, immediately turn the tool "OFF" and
experience a torque reaction an instantcorrect the condition leading to the bit
before the clutch slips. This torque reactionbinding.
will twist the body of the rotohammer in the
opposite direction as the bit rotates, i.e.,
AUXILIARY HANDLESetting depth: After the auxiliary handle is
The tool must be supported with theinstalled, push the depth gauge release
auxiliary handle, which can be swiveled 360u.button, slide the depth gauge to desired
To reposition and/or swivel the handle,depth and release pressure on button to
loosen the hand grip, move the handle to thelock the depth gauge in place.
desired position along the barrel and
securely retighten the hand grip.BRAKE
When the trigger is released it activates the
DEPTH GAUGEelectrical brake to stop the chuck quickly.
Your drilling depth can be pre-set and/orThis is especially useful in the repetitive
repeated by using the depth gauge.driving and removal of screws.
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ACEC
BOSCH
