Starting Operation; Inserting The Battery; Switching On/Off; Working Advice - Bosch PST 18 LI Manual Original

Moving the base plate (see figure I)
You can move the base plate (9) back for sawing close to
edges.
Pull the saw blade storage compartment (8) out of the base
plate (9).
Loosen the screw (23) and push the base plate (9) towards
the extraction outlet (7) as far as it will go.
Retighten the screw (23).
Sawing with an offset base plate (9) is only possible with a
mitre angle of 0°. In addition, Cut Control must not be used
with the base (13), the parallel guide with circle cutter (27)
(accessory) or the anti-splinter guard (20).

Starting Operation

Inserting the battery

Note: The use of batteries unsuitable for your power tool can
lead to malfunctions or damage to the power tool.
Insert the charged battery (4) into the battery receptacle un-
til you feel it engage and it is securely locked in place.

Switching on/off

To switch on the power tool, press the lock-off switch (1)
first. Then press the on/off switch (2) and keep it pressed.
The worklight lights up when the on/off switch (2) is lightly
or fully pressed allowing the work area to be illuminated in
poor lighting conditions.
To switch off the power tool, release the on/off switch (2).
Note: For safety reasons, the on/off switch (2) cannot be
locked; it must remain pressed during the entire operation.
Controlling the stroke rate
You can variably adjust the stroke rate of the power tool
when it is on by pressing in the on/off switch (2) to varying
extents.
Applying light pressure to the on/off switch (2) results in a
low stroke rate. Applying increasing pressure to the switch
increases the stroke rate.
The required stroke rate is dependent on the material and
the work conditions and can be determined using practical
tests.
It is recommended that you reduce the stroke rate when
placing the saw blade on the workpiece and when sawing
plastic and aluminium.
During prolonged periods of use at a low stroke rate, the
power tool may heat up significantly. Remove the saw blade
and let the power tool run at the maximum stroke rate for
around three minutes to cool down.
Temperature-dependent overload protection
In normal conditions of use, the power tool cannot be over-
loaded. If the power tool is overloaded or not kept within the
permitted battery temperature range, the speed is reduced
or the power tool switches off. At reduced speed, the power
tool will run again at full speed once the permitted battery
temperature is reached or the load is reduced. If it automat-
ically shuts down, switch the power tool off, allow the bat-
tery to cool down, then switch the power tool back on.
Bosch Power Tools
The three LEDs in the battery charge indicator (3) flash
quickly when the temperature of the battery is outside the
operating temperature range of −20 to +50 °C and/or the
overload protection has been triggered.

Working Advice

Remove the battery from the power tool before carry-
u
ing out work on the power tool (e.g. maintenance,
changing tool, etc.). The battery should also be re-
moved for transport and storage. There is risk of injury
from unintentionally pressing the on/off switch.
Switch the power tool off immediately if the saw blade
u
becomes blocked.
When machining small or thin workpieces, always use
u
a stable base or sawing station (Bosch PLS 300).
Under certain conditions, strong electromagnetic fields can
negatively affect or stop the power tool. After switching the
power tool off, press the on/off switch (2) again to restart
the power tool.
Plunge cutting (see figure K)
Plunge cuts may only be applied to soft materials,
u
such as wood, gypsum board, etc.
For plunge cutting, use only short saw blades. Plunge cutting
is possible only with a mitre angle of 0°.
Place the power tool so that the front edge of the base plate
(9) rests on the workpiece, without the saw blade (14)
touching the workpiece, and switch it on. On power tools
with stroke rate control, select the maximum stroke rate.
Press the power tool firmly against the workpiece and allow
the saw blade to plunge slowly into the workpiece.
As soon as the base plate (9) rests fully on the workpiece,
continue sawing along the required cutting line.
Parallel guide with circle cutter (accessory)
When working with the parallel guide with circle cutter (27)
(accessory), the workpiece must be no more than 30 mm
thick.
Remove the base for Cut Control (13) from the base plate
(9). To do this, push the base together gently and remove it
from the guide (21).
Parallel cuts (see figure L): Loosen the locking screw (26)
and slide the scale on the parallel guide through the guide
(21) in the base plate. Adjust the desired cutting width as a
scale value on the inside edge of the base plate. Retighten
the locking screw (26).
Circular cuts (see figure M): Drill a hole large enough to push
the saw blade through on the cutting line within the circle to
be cut. Machine the drill hole with a router or file so that the
saw blade can lie flush with the cutting line.
Position the locking screw (26) on the other side of the par-
allel guide. Slide the scale on the parallel guide through the
guide (21) into the base plate. Drill a hole in the workpiece
in the middle of the section to be cut out. Insert the centring
tip (28) through the inner opening of the parallel guide and
into the drilled hole. Adjust the radius as a scale value on the
inside edge of the base plate. Retighten the locking screw
(26).
English | 21
1 609 92A 5D9 | (12.08.2019)