Bosch PROFESSIONAL GBM 13-2 Manual De Instrucciones página 12

Intermittent switching
ON - Press trigger of switch 6.
OFF - Release trigger
Continuous switching
ON - Press trigger of switch 6, then lock button 5 and re-
lease it.
OFF - Press and release trigger on switch 6.
Continuous speed control (GBM 13 RE)
A light pressure on the trigger of switch 6, will produce a
low number of revolutions, thus allowing a smooth and con-
troled start-up. By increasing the pressure, you'll get a high-
er speed.
Reversion of the sense of rotation
(GBM 13 RE)
The reversing lever 7 allows to invert the mo-
tor's sense of rotation, thus enhancing the field
of applications with all of screw driving / removal.
R - right = drilling / screw driving
Position:
L - left = screw removal
Important !
• To invert the sense of rotation, be sure the motor is
switched off.
• The reversing or anticlockwise operation enables ap-
plication for tasks such loosening of screw.
Accessories assembly
Bits
Make sure:
• The bit you are intending to use is the correct one for this
specific material.
• The bit is in perfect working conditions (not buckled/cor-
rectly sharpened).
Assembly
Open the chuck and insert the accessory's shank until it
reaches the botton of the chuck.
Use chuck key 8 to tighten it up through the three holes of
the chuck.
Warning !
An accessory shank that has only the tip fastened:
• Will damage the chuck's jaws
• Will destroy the accessory's shank thus making it
buckle due to the centrifugal force
• May cause an accident due to the wrong assembly.
Working instructions
Check the material to be drilled and select the correct bit.
Do not drill with a bit that is inadequate for the job, because
this will damage either your workpiece or the bit itself.
Small workpieces
Use a vise or clamps to hold your workpiece.
Loose pieces could grip int the bit and cause accidents.
Select the right bit
By choosing the correct bit for every specific material, and
keeping it correctly sharpened, you'll allow your tool to show
its best performance.
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GBM_13-2-13RE.indd 12
All manuals and user guides at all-guides.com
Carbon tipped bits - wood
High speed steel bits - soft steel, aluminium, wood, etc.
Carbide tipped bits - concrete, marble, ceramics, etc.
Attention !
When drilling in metal, use special cutting oil to prevent the
bit to burn.
Side handle
To improve handling and safety, always use side handle 9.
Depth stop rod
For serial drills of same depth you have to put the depth stop
1 in the auxiliary handle and to adjust the depth according
to your necessity.
Chuck replacement
Use an open-end spanner at spanner surface 10 to retain
the chuck. Place the chuck key 8 in one of the 3 bores and
loosen the chuck by turning it to the left using the key as a
lever. If the chuck is frozen in place, a tap on the chuck key
8 should loosen it. The removal procedure is reversed for
re-assembling.
In GBM 13 RE The chuck must be tightened with a torque
of approx. 30-40 Nm.
Maintenance and cleaning
• Before any work on the machine itself, pull the mains
chine and the ventilation slots clean.
If the machine should fail despite the rigorous manufacturing
and testing procedures, repair should be carried out by an au-
thorized customer services center for BOSCH power tools.
Guarantee
We guarantee BOSCH appliances in accordance with stat-
utory/country-specific regulations (proof of purchase by in-
voice or delivery note).
Damage attributable to normal wear and tear, overload or
improper handling will be excluded from the guarantee.
In case of complaint please send the machine, undisman-
tled, to your dealer or the BOSCH Service Center for Elec-
tric Power Tools.
Warning!
Freight and insurance costs are charged to the client, even
for warranty claims.
Environmental protection
Recycle raw materials instead of disposing as waste.
rized recycling.
plug.
For safe and proper working, always keep the ma-
The machine, accessories and packaging
should be sorted for environmental-friendly re-
cycling.
The plastic components are labeled for catego-
Subject to change without notice
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