Operating Tips - Bosch GBM9-16 Instrucciones De Funcionamiento Y Seguridad

1619PA9714.qxp_GBM9-16 11/19/15 12:55 PM Page 11
WORK INSTRUCTIONS FOR MIXING
powdered or granulated materials, follow
material manufacturer instructions and
precautions.
Do not run the power tool on a stand.
Avoid splashing around the material being
stirred to prevent slipping and losing control
over the power tool.
Avoid prolonged use of the power tool at
lower speeds. Otherwise the motor of the
power tool could overheat.
Selection of the stirrer paddle is dependent on
the material that is to be stirred.
For materials with low viscosity, e. g. emulsion
WORK INSTRUCTIONS FOR DRILLING
You will extend the life of your bits and do
neater work if you always put the bit in contact
with the work before pulling the trigger. During
the oper a tion, hold the tool firmly and exert
light, steady pressure. Too much pressure at
low speed will stall the tool. Too little pressure
will keep the bit from cutting and cause excess
friction by sliding over the surface. This can be
damaging to both tool and bit.
DRILLING WITH VARIABLE SPEED
The trigger controlled variable speed feature
will eliminate the need for center punches in
hard materials. The variable speed trigger
allows you to slowly increase RPM. By using a
slow starting speed, you are able to keep the
bit from "wander ing". You can increase the
speed as the bit "bites" into the work by
squeezing the trigger.
DRILL BITS
Always inspect drill bits for excessive wear.
Use only bits that are sharp and in good
condition.
TWIST BITS: Available with straight and
reduced shanks for wood and light duty metal
drilling. High speed bits cut faster and last
longer on hard ma terials.

Operating Tips

When using this tool for
mixing liquid, or
paint, varnishes, adhesive, grouting compound,
cement slurry, use a stirrer paddle with a left-
hand spiral. The material is moved from the top
dry
downwards in a stirrer paddle with a left-hand
spiral. The stirrer paddle is pushed upwards.
Materials with low viscosity are mixed in a way
which minimizes splattering.
For materials with high viscosity, e. g. plaster,
concrete, cement, screed, filler, epoxy resin,
use a stirrer paddle with right-hand spiral. The
material is moved from the bottom upwards in a
stirrer paddle with a right-hand spiral. The
stirrer paddle works its way into the mixture.
Materials with high viscosity are mixed
thoroughly.
While mixing, move the power tool in an up and
down motion. Clean the stirrer paddle after use.
DRILLING IN WOOD
Be certain workpiece is clamped or anchored
firm ly. Always apply pressure in a straight line
with the drill bit. Maintain enough pressure to
keep the drill "biting".
When drilling holes in wood, twist bits can be
used. Twist bits may overheat unless pulled out
frequently to clear chips from flutes.
Use a "back-up" block of wood for work that is
likely to splinter, such as thin materials.
You will drill a cleaner hole if you ease up on
the pressure just before the bit breaks through
the wood. Then complete the hole from the
back side.
DRILLING IN METAL
There are two rules for drilling hard materials.
First, the harder the material, the greater the
pres sure 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.
Lubri cate the tip of the bit occasionally with
cutting oil except when drilling soft metals such
as alu minum, cop per 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. Main tain enough
pressure to assure that the bit does not just
spin in the hole. This will dull the bit and greatly
shorten its life.
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