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BM 2609140542 12-07
DRILLING METAL
There are two rules for drilling hard materials.
First, the harder the material, the greater the
pressure you need to apply to the tool. Second,
the harder the material, the slower the speed.
Here are a couple of tips for drilling in metal.
Lubricate the tip of the bit occasionally with
cutting oil except when drilling soft metals such
as aluminum, copper or cast iron. If the hole to
be drilled is fairly large, drill a smaller hole first,
then enlarge to the required size, it's often
faster in the long run. Maintain enough
pressure to assure that the bit does not just
spin in the hole. This will dull the bit and greatly
shorten its life.
DRILLING MASONRY
Soft materials such as brick are relatively easy
to drill. Concrete however, will require much
INSERTING AND RELEASING
BATTERY PACK
Release battery pack from tool by pressing
on both sides of the battery release tabs and
pull downward (Fig. 6).
To insert battery, align battery and slide
battery pack into tool until it locks into position.
Do not force.
1. The charger was designed to fast charge
the battery only when the battery
temperature is between 32˚F (0˚C) and
140˚F (60˚C). If the battery pack is too hot or
too cold, the charger will not fast charge the
battery. (This may happen if the battery pack
is hot from heavy use). When the battery
temperature returns to between 32˚F (0˚C)
and 140˚F (60˚C), the charger will
automatically begin charging.
2. A substantial drop in operating time per
charge may mean that the battery pack is
nearing the end of its life and should be
replaced.
3. Remember to unplug charger during
storage period.
4. If battery does not charge properly:
12/7/07
2:32 PM
IMPORTANT CHARGING NOTES
Page 11
more pressure to keep the bit from spinning. Be
sure to use carbide tip bits for all masonry
work.
Before using an accessory,
!
WARNING
be certain that its maximum
safe operating speed is not exceeded by the
nameplate speed of the tool. Do not exceed
the recommended wheel diameter.
RUNNING NUTS AND BOLTS
Variable speed control must be used with
caution for driving nuts and bolts with socket
set attachments. The technique is to start
slowly, increasing speed as the nut or bolt runs
down. Set the nut or bolt snugly by slowing the
drill to a stop. If this procedure is not followed,
the tool will have a tendency to torque or twist
in your hands when the nut or bolt seats.
a. Check for voltage at outlet by plugging
in some other electrical device.
b. Check to see if outlet is connected to a
light switch which turns power "off" when
lights are turned off.
c. Check battery pack terminals for dirt.
Clean with cotton swab and alcohol if
necessary.
d. If you still do not get proper charging,
take or send tool, battery pack and charger
to your local Bosch Service Center. See
"Tools, Electric" in the Yellow Pages for
names and addresses.
Note: Use of chargers or battery packs not
sold by Bosch will void the warranty.
-11-
FIG. 6
BATTERY
RELEASE TABS
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