Bosch GKS 85 Professional Notice Originale page 26

OBJ_BUCH-293-003.book Page 25 Tuesday, August 21, 2007 3:45 PM
Operating Instructions
Protect saw blades against impact and shock.
Guide the machine evenly and with light feed in
the cutting direction. Excessive feed significant-
ly reduces the service life of the saw blade and
can cause damage to the power tool.
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 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.
Sawing with Guide Rail (see figures F–H)
The guide rail 28 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.
Bosch Power Tools
For sawing at a right angle, the circular saw can
be placed directly onto the guide rail 28. Fasten
the guide rail 28 with suitable clamping devices,
e. g., screw clamps, on the workpiece in such a
manner that the narrow leg of the guide rail 28
faces toward the saw blade.
The guide rail 28 must not extend beyond the
face side of the workpiece where the cut is to
be started.
The guide-rail adapter 31 is required for bevel
cuts with the guide rail 28. The guide-rail adapt-
er 31 is mounted in the same manner as the par-
allel guide 11.
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 following work steps are required for exact
cuts using the guide rail 28:
– Place the guide rail 28 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 31 on to the guide rail 28.
– Adjust the desired cutting depth and the bev-
el angle. Observe the marks on the guide-rail
adapter 31 for preadjustment of the various
bevel angles; see figure F.
– Align the circular saw with guide-rail adapter
in such a manner that the teeth of the saw
blade 20 face against the rubber lip. The po-
sition of the saw blade 20 depends on the se-
lected cutting angle. Do not saw into the
guide rail.
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