Bosch GKS 160 Professional Notice Originale page 26

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26 | English
Sawing performance and cutting quality depend
essentially on the condition and the tooth form
of the saw blade. Therefore, use only sharp saw
blades that are suited for the material to be
worked.
Sawing Wood
The correct selection of the saw blade depends
on the type and quality of the wood and whether
lengthway or crossway cuts are required.
When cutting spruce lengthways, long spiral
chips are formed.
Beech and oak dusts are especially detrimental
to health. Therefore, work only with dust extrac-
tion.
Sawing Non-ferrous Metals
Note: Use only a sharp saw blade that is suitable
for non-ferrous metals. This ensures a clean cut
and prevents blade binding.
Guide the switched on power tool against the
workpiece and carefully start the cut. Continue
the cut with low feed and without interruption.
When sawing profiles, always begin the cut from
the narrow side; when sawing U-profiles, never
start the cut from the open side. Support long
profiles in order to avoid blade binding and kick-
back of the power tool.
Sawing with Parallel Guide (see figure D)
The parallel guide 11 enables exact cuts along a
workpiece edge and cutting strips of the same
dimension.
Loosen wing bolt 8 and slide the scale of the
parallel guide 11 through the guide in the base
plate 14. Adjust the desired cutting width as the
scale setting at the respective cutting mark 10
or 9; see Section "Cutting Marks". Tighten wing
bolt 8 again.
Sawing with Auxiliary Guide (see figure E)
For sawing large workpieces or straight edges, a
board or strip can clamped to the workpiece as
an auxiliary guide; the base plate of the circular
saw can be guided alongside the auxiliary guide.
1 609 929 W40 | (8.2.10)
Sawing with Guide Rail (see figures G–H)
The guide rail 30 is used to carry out straight
cuts.
The adhesive coating prevents the guide rail
from slipping and protects the surface of the
workpiece. The coating of the guide rail allows
the circular saw to glide easily.
The rubber lip on the guide rail acts as a splinter
guard that prevents fraying or tearing out of the
surface when sawing wooden materials. For
this, the teeth of the saw blade must face direct-
ly against the rubber lip.
The guide-rail adapter 29 is required for working
with the guide rail 30. The guide-rail adapter 29
is mounted in the same manner as the parallel
guide 11.
The following work steps are required for exact
cuts using the guide rail 30:
– Place the guide rail 30 on to the workpiece
projecting lightly over the side. Pay attention
that the side with the rubber lip faces to the
workpiece.
– Set the circular saw with the premounted
guide-rail adapter 29 on to the guide rail 30.
– Adjust the desired cutting depth and the bev-
el angle. Observe the marks on the guide-rail
adapter 29 for preadjustment of the various
bevel angles; see figure G.
– Align the circular saw with guide-rail adapter
in such a manner that the teeth of the saw
blade 21 face against the rubber lip. The po-
sition of the saw blade 21 depends on the se-
lected cutting angle. Do not saw into the
guide rail.
Bosch Power Tools