Bosch GSB 550-2 PROFESSIONAL Operating Instructions Manual page 7

2 609 140 164 - Buch Seite 4 Mittwoch, 14. Januar 2004 11:57 11
Tips
For drilling in tiles, set the selector switch 3 to the
symbol "Drilling and Screwdriving". Do not switch
over to the symbol "Impact Drilling" or work with
impact until after drilling through the tile.
Hard metal drills are needed for working with con-
crete, rock and brickwork.
Sharpening Drill Bits
When drilling metals, use only flawlessly sharp-
ened HSS (super-speed steel) drills. The appro-
priate quality is guaranteed by the Bosch acces-
sories program.
Twist drills from 3.5 – 10 mm can easily be sharp-
ened with the drill sharpener (see accessories).
Bench Stand
We recommend the use of a bench stand (see
accessories) especially when work demanding
more precision is required.
Machine Vise
The machine vise (available as an accessory) fa-
cilitates a safe tightening of workpieces, prevent-
ing their twisting and any accidents this would
cause.
Maintenance and Cleaning
Before any work on the machine itself, pull
the power plug.
For safe and proper working, always keep the
machine and the ventilation slots clean.
Should the machine fail in spite of careful manu-
facturing and testing, its repair should be carried
out by a Bosch power tools authorized service
agent.
For all correspondence and spare parts orders,
always include the 10-digit part number of the
machine!
7 • 2 609 140 164 • TMS • 07.01.04
Environmental Protection
Recycle raw materials instead of disposing
them as waste
The machine, its accessories and packaging ma-
terials should be sorted for environmentally-
friendly recycling.
These instructions are printed on chlorine-free re-
cycled paper.
The plastic components are labeled for catego-
rized recycling.
Noise/Vibration Information
Measured values determined according to
EN 60 745.
The A-weighted noise levels of the tool are
typically: sound pressure level: 96 dB (A); sound
power level:
inaccuracy K = 3 dB.
Wear ear protection!
The weighted acceleration is typically 11 m/s
English - 4
107 dB (A). Measuring
2
.