Maintenance And Service; Maintenance And Cleaning - Bosch PKS 40 Originalbetriebsanleitung

OBJ_BUCH-2503-002.book Page 16 Thursday, June 2, 2016 4:10 PM
16 | English
Operation
Operating Modes
 Before any work on the machine itself, pull the mains
plug.
Adjusting the Cutting Depth (see figure B)
 Adjust the cutting depth to the thickness of the work-
piece. 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 cutting 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 7. Tilt the saw sidewards. Adjust the desired
setting at the scale 6. Tighten wing bolt 7 again.
Note: For bevel cuts, the cutting depth is smaller than the set-
ting indicated on the cutting-depth scale 15.
Cutting Marks (see figure C)
The "CutControl" 9 viewing window, which folds out to the
front, is used for precise guiding of the circular saw alongside
the cutting line on the workpiece. The "CutControl" 9 viewing
window has a mark each for right-angled cuts and for 45°
cuts.
The 0° cutting mark 25 indicates the position of the saw blade
for right-angled cuts. The 45° cutting mark 24 indicates the
position of the saw blade for 45° cuts.
For precise cuts, position the circular saw against the work-
piece as shown in the figure. It is best to carry out a trial cut.
Starting Operation
 Observe correct mains voltage! The voltage of the pow-
er 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 save energy, only switch the power tool on when using it.
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.
Note: For safety reasons, the On/Off switch 1 cannot be
locked; it must remain pressed during the entire operation.
1 609 92A 248 | (2.6.16)
Working Advice
 Before any work on the machine itself, pull the mains
plug.
Protect saw blades against impact and shock.
Guide the machine evenly and with light feed in the cutting di-
rection. 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. There-
fore, 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 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 bind-
ing and kickback of the power tool.
Sawing with Parallel Guide (see figure D)
The parallel guide 10 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 10
through the guide in the base plate 13. Adjust the desired cut-
ting width as the scale setting at the respective cutting mark
25 or 24; 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 be clamped to the workpiece as an auxiliary guide;
the base plate of the circular saw can be guided alongside the
auxiliary guide.

Maintenance and Service

Maintenance and Cleaning

 Before any work on the machine itself, pull the mains
plug.
 For safe and proper working, always keep the machine
and ventilation slots clean.
The retracting blade guard must always be able to move freely
and retract automatically. Therefore, always keep the area
around the retracting blade guard clean. Remove dust and
chips by blowing out with compressed air or with a brush.
Bosch Power Tools