Working Advice - Bosch PST 18 LI Manual Original

OBJ_BUCH-1204-001.book Page 26 Wednesday, May 5, 2010 8:13 AM
26 | English
Controling the Stroke Rate
Increasing or reducing the pressure on the
On/Off switch 2 enables stepless stroke-rate
control of the switched-on machine.
Light pressure on the On/Off switch 2 results in
a low stroke rate. Increasing the pressure also
increases the stroke rate.
The required stroke rate is dependent on the
material and the working conditions and can be
determined by a practical trial.
Reducing the stroke rate is recommended when
the saw blade engages in the material as well as
when sawing plastic and aluminium.
After longer periods of work at low stroke rate,
the machine can heat up considerably. Remove
the saw blade from the machine and allow the
machine to cool down by running it for approx.
3 minutes at maximum stroke rate.
Battery Charge-control Indication
The battery charge-control indicator 3 indicates
the charge condition of the battery when the
machine is switched on. It consists of 3 green
LEDs.
LED
Continuous lighting 3 x green
Continuous lighting 2 x green
Continuous lighting 1 x green
Slow flashing 1 x green
Temperature Dependent Overload Protection
When using the machine as intended for, it can-
not be subject to overload. In case of excessive
load or when not within the permitted battery
temperature range of 0–70 °C, the speed is re-
duced or the machine switches off. With re-
duced speed, the machine will not run at full
speed again until after reaching the permitted
battery temperature or when the load is re-
duced. In case of automatic shut-off, switch the
machine off, allow the battery to cool down and
then switch the machine on again.
2 609 004 236 | (5.5.10)
The 3 LEDs of the battery charge-control indica-
tor 3 flash rapidly when the battery temperature
is not within the operating temperature range of
–30 to +65°C, and/or when the overload protec-
tion has responded.
Protection Against Deep Discharging
The lithium ion battery is protected against
deep discharging by the "Electronic Cell Protec-
tion (ECP)". When the battery is empty, the ma-
chine is switched off by means of a protective
circuit: The inserted tool no longer rotates.

Working Advice

When working small or thin workpieces, al-
ways use a stable support or a saw station
(Bosch PLS 300).
Plunge Cutting (see figure K)
Plunge cuts may only be applied to soft ma-
terials, such as wood, gypsum plaster
boards, etc.!
Use only short saw blades for plunge cutting.
Plunge cutting is possible only with the mitre an-
gle set at 0°.
Place the machine with the front edge of the
Capacity
base plate 9 on to the workpiece without the
≥ 66%
saw blade 14 touching the workpiece and
34—65%
switch on. For machines with stroke rate con-
trol, select the maximum stroke rate. Firmly
11—33%
hold the machine against the workpiece and by
≤ 10%
tilting the machine, slowly plunge the saw blade
into the workpiece.
When the base plate 9 fully lays on the work-
piece, continue sawing along the desired cutting
line.
Parallel Guide with Circle Cutter (Accessory)
For cuts using the parallel guide with circle cut-
ter 27 (accessory), the thickness of the material
must not exceed a maximum of 30 mm.
Remove the "Cut Control" base 13 from base
plate 9. For this, lightly press the base together
and remove it from the guide 21.
Bosch Power Tools