Bosch GBH18V-24C Operating/Safety Instructions Manual page 5

Safety Rules for Cordless Hammer Drills
When installing a drill bit, insert the shank of
the bit well within the jaws of the chuck. If the
bit is not inserted deep enough, the grip of the
jaws over the bit is reduced and the loss of con-
trol is increased.
Do not use dull or damaged bits and accesso-
ries. Dull or damaged bits have a greater ten-
dency to bind in the workpiece.
When removing the bit from the tool avoid con-
tact with skin and use proper protective gloves
when grasping the bit or accessory. Accesso-
ries may be hot after prolonged use.
Check to see that keys and adjusting wrenches
are removed from the drill before switching
the tool "ON". Keys or wrenches can fly away at
high velocity striking you or a bystander.
Do not run the tool while carrying it at your
side. A spinning drill bit could become entan-
gled with clothing and injury may result.
If devices are provided for the connection of
dust collection and extraction systems, empty
the dust container before beginning work, fre-
quently during work, after completion of work,
and before storing the tool. Be extremely care-
ful of dust disposal, materials in fine particles
form may be explosive.
Do not throw dust on an open fire. Combustion
from mixture of varnishes, lacquers, polyure-
thane, oil or water with dust particles can occur
if there is a static discharge, electric spark, or
excessive heat.
Do not use dust extraction for operations
where dust may include burning, smoking or
smoldering items like hot ashes or sparks. Fire
inside the vacuum tank or bag may occur. Dust
may smolder and set vacuum on fire long after
work is completed.
Do not use dust extraction with explosive
dusts, varnish, polyurethane coatings, clean-
ers, or oil-based paints. Electric motors create
sparks which may ignite the dust or fumes.
Do not use dust extraction when working on
metal. Swarf from drilling metal may be hot and
may spark which may melt plastic adaptors,
vacuum hoses and may cause a fire inside the
vacuum tank or bag.
1605A000XG GBH18V-24C 202208.indd 5
Do not drill into metal with the dust extraction
system mounted. Hot metal chips can self-ignite
or ignite parts of the dust extraction system.
Do not drill into wood with dust extraction sys-
tem mounted. Wood chips are typically too large
and will clog the dust channel.
Your tool is equipped with a dust canister,
empty it frequently, after completion of drill-
ing and before storing the tool. Be extremely
careful of dust disposal, materials in fine par-
ticle form may be explosive.
Note: Do not use the dust extraction system
when chiselling, screwdriving or cutting threads.
Safety instructions when using
long drill bits with rotary hammers
a. Always start drilling at low speed and with
the bit tip in contact with the workpiece.
At higher speeds, the bit is likely to bend if
allowed to rotate freely without contacting
the workpiece, resulting in personal injury.
b. Apply pressure only in direct line with the
bit and do not apply excessive pressure.
Bits can bend causing breakage or loss of
control, resulting in personal injury.
c. Never operate at higher speed than the
maximum speed rating of the drill bit. At
higher speeds, the bit is likely to bend if al-
lowed to rotate freely without contacting the
workpiece, resulting in personal injury.
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