Operating Modes; Starting Operation - Bosch WEU PST 18 LI Notice Originale

OBJ_BUCH-1204-003.book Page 18 Monday, February 23, 2015 2:26 PM
18 | English
Certain dusts, such as oak or beech dust, are considered
as carcinogenic, especially in connection with wood-treat-
ment additives (chromate, wood preservative). Materials
containing asbestos may only be worked by specialists.
– As far as possible, use a dust extraction system suitable
for the material.
– Provide for good ventilation of the working place.
– It is recommended to wear a P2 filter-class respirator.
Observe the relevant regulations in your country for the
materials to be worked.
 Prevent dust accumulation at the workplace. Dusts can
easily ignite.
Dust Cover (see figures G – H)
Mount the dust cover 11 before connecting the machine to
the dust extraction.
Mount the dust cover 11 onto the machine in such a manner
that the centre holder engages on the contact protector 16
and the two outer holders engage in the openings on the cas-
ing.
Remove the dust cover 11 for applications without dust ex-
traction as well as when performing mitre cuts. For this, push
the dust cover together at the two outer holders and pull it off
toward the front.
Connecting the Dust Extraction
Place a vacuum hose 6 (accessory) onto the vacuum connec-
tion 7. Connect the vacuum hose 6 with a vacuum cleaner (ac-
cessory). An overview for the connection of various vacuum
cleaners can be found at the end of these instructions.
To enable optimum dust extraction, use the splinter guard 20
if possible.
The vacuum cleaner must be suitable for the material being
worked.
When vacuuming dry dust that is especially detrimental to
health or carcinogenic, use a special vacuum cleaner.
Operation

Operating Modes

 Before any work on the machine itself (e. g. mainte-
nance, tool change, etc.) as well as during transport
and storage, remove the battery from the power tool.
There is danger of injury when unintentionally actuating
the On/Off switch.
Orbital Action Settings
The four orbital action settings allow for optimal adaptation of
cutting speed, cutting capacity and cutting pattern to the ma-
terial being sawed.
The orbital action can be adjusted with the adjusting lever 10,
even during operation.
No orbital action
Small orbital action
Medium orbital action
Large orbital action
1 609 92A 0R3 | (23.2.15)
The optimal orbital action setting for the respective applica-
tion can be determined through practical testing. The follow-
ing recommendations apply:
– Select a lower orbital action setting (or switch it off) for a
finer and cleaner cutting edge.
– For thin materials such as sheet metal, switch the orbital
action off.
– For hard materials such as steel, work with low orbital ac-
tion.
– For soft materials and when sawing in the direction of the
grain, work with maximum orbital action.
Adjusting the Cutting Angle (see figure I)
The base plate 9 can be swivelled by 45° to the left or right for
mitre cuts.
– Remove the dust cover 11 and the vacuum connection 7.
– Pull the saw blade storage 8 out of the base plate 9.
– Loosen the screw 23 and lightly slide the base plate 9 to-
ward the vacuum connection 7.
– For adjustment of precise mitre angles, the base plate has
adjustment notches on the left and right at 0°, 22.5° and
45°. Swivel the base plate 9 to the desired position ac-
cording to the scale 22. Other mitre angles can be adjusted
using a protractor.
– Afterwards, push the base plate 9 to the stop in the direc-
tion of the saw blade 14.
– Tighten the screw 23 again.
The dust cover 11, vacuum connection 7 and splinter guard
20 cannot be used for mitre cuts.
Cut Control for Bevel Cuts (see figure J)
For cutting-line control of bevel cuts, the "Cut Control" view-
ing window 15 has a mark 24 for 0° right-angle cuts and a
mark 25 each for the left- or rightward sloping 45° bevel cut
according to scale 22.
The cutting mark for bevel cuts between 0° and 45° results
proportionally. It can additionally be drawn on the "Cut Con-
trol" viewing window 15 with a non-permanent marker, and
easily be removed again.
For accurate working, it is best to carry out a test cut.
Offsetting the Base Plate (see figure I)
For sawing close to edges, the base plate 9 can be offset to
the rear.
Loosen the screw 23 and slide the base plate 9 toward the
vacuum connection 7 to the stop.
Tighten the screw 23 again.
Sawing with the base plate 9 offset is possible only at a 0°
bevel angle. Additionally, "Cut Control" may not be used to-
gether with the base 13, the parallel guide with circle cutter
27 (accessory), as well as the splinter guard 20.

Starting Operation

Inserting the battery
 Use only original Bosch lithium-ion batteries with the
voltage listed on the nameplate of your power tool.
Using other batteries can lead to injuries and pose a fire
hazard.
Bosch Power Tools