Bosch PKS 55 A Manual Original página 26

26 | English
Note: For safety reasons, the On/Off switch 2
cannot be locked; it must remain pressed during
the entire operation.
Working Advice
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 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 H)
The parallel guide 10 enables exact cuts along a
workpiece edge and cutting strips of the same
dimension.
1 609 929 S13 | (19.3.10)
Loosen wing bolt 8 and slide the scale of the
parallel guide 10 through the guide in the base
plate 12. Adjust the desired cutting width as the
scale setting at the respective cutting mark 30
or 29; see Section "Cutting Marks". Tighten
wing bolt 8 again.
Sawing with Auxiliary Guide (see figure I)
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 J – L)
The guide rail 32 is used to carry out straight
cuts.
The adhesive coating prevents the guide rail
from slipping and protects the surface of the
workpiece.
The guide rail 32 can be extended. For this, turn
around both guide rails 32 by 180° and connect
both guide rails 32 by inserting them. Press but-
ton 33 to lock the guide rails. To disassemble
the guide rails, press the opposite button 33
and pull the guide rails 32 apart.
The guide rail 32 has two marks on the top side.
The side with the "90°" mark is used for right-
angled cuts, and the side with the "45°" mark is
used for all other mitre cuts.
The rubber lip on the guide rail acts as a splinter
guard for 90° and 45° cuts; it prevents fraying
of the surface while sawing wooden materials.
Upon initial sawing, the rubber lip is adapted to
your circular saw, and slightly cut off in this
process.
Note: On the workpiece side where the cut is
being started, the guide rail 32 must always face
flush against the workpiece, and may not
project beyond it.
Should the guide rail 32 project beyond the
workpiece end, do not rest the circular saw on
the guide rail 32 without holding the circular
saw. The guide rail 32 is made of plastic and
cannot hold the circular saw.
Bosch Power Tools