Operating Modes; Starting Operation - Bosch PKS 40 Bedienungsanleitung

OBJ_BUCH-179-002.book Page 6 Thursday, June 29, 2006 11:08 AM
Operation

Operating Modes

Before any work on the machine itself, pull
the mains plug.
Adjusting the Cutting Depth (see figure C)
Adjust the cutting depth to the thickness of
the workpiece. Less than a full tooth of the blade
teeth should be visible below the workpiece.
Loosen wing bolt 14. For a smaller cutting depth, pull
the saw away from the base plate 13; for a larger cut-
ting depth, push the saw toward the base plate 13.
Adjust the desired cutting depth at the cutting-depth
scale. Tighten wing bolt 14 again.
Adjusting the Cutting Angle
Loosen wing bolt 6. Tilt the saw sidewards. Adjust the
desired setting at the scale 5. Tighten wing bolt 6
again.
Note: For bevel cuts, the cutting depth is smaller than
the setting indicated on the cutting-depth scale 15.
Cutting Marks
45° 0°
The 0° cutting mark (9) indicates the position of the
saw blade for right-angled cuts. The 45° cutting mark
(8) indicates the position of the saw blade for 45° cuts.
For precise cuts, position the circular saw against the
workpiece as shown in the figure. It is best to carry out
a trial cut.

Starting Operation

Observe correct mains voltage! The voltage of
the power source must agree with the voltage
specified on the nameplate of the machine.
Power tools marked with 230 V can also be
operated with 220 V.
Switching On and Off
To start the machine, first push the lock-off button for
the On/Off switch 2 and then press the On/Off switch
1 and keep it pressed.
To switch off the machine, release the On/Off switch
1.
2 609 001 819 • 29.6.06
Note: For safety reasons, the On/Off switch 1 cannot
be locked; it must remain pressed during the entire
operation.
Operating Instructions
Protect saw blades against impact and shock.
Guide the machine evenly and with light feed in the cut-
ting direction. Excessive feed significantly 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 extraction.
Sawing with Parallel Guide (see figure D)
The parallel guide 10 enables exact cuts along a work-
piece edge and cutting strips of the same dimension.
Loosen wing bolt 7 and slide the scale of the parallel
45° 0°
guide 10 through the guide in the base plate 13. Adjust
the desired cutting width as the scale setting at the
respective cutting mark 9 or 8; see Section "Cutting
Marks". Tighten wing bolt 7 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 figure G)
The guide rail 27 is used to carry out straight cuts.
The adhesive coating prevents the guide rail from slip-
ping 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 directly against the rubber lip.
The guide-rail adapter 26 is required for working with
the guide rail 27. The guide-rail adapter 26 is mounted
in the same manner as the parallel guide 10.
English–6