Bosch Professional GKS 18 V-LI Original Instructions Manual page 10

OBJ_BUCH-3265-001.book Page 10 Friday, June 16, 2017 10:49 AM
10 | English
– Place the saw blade 20 onto the mounting flange 19. The
cutting direction of the teeth (direction of arrow on the saw
blade) and the direction-of-rotation arrow on the retract-
ing blade guard 7 must correspond.
– Mount the clamping flange 21 and screw in the clamping
bolt 22 turning in rotation direction . Observe correct
mounting position of mounting flange 19 and clamping
flange 21.
– Press the spindle lock button 14 and keep it pressed.
– Tighten the clamping bolt 16 with the Allen key 22 by turn-
ing in rotation direction . The tightening torque is
6–9 Nm, which corresponds to hand tight plus ¼ turn or
3 graduation marks of the marks 23 on the blade guard 4.
Dust/Chip Extraction
 Before any work on the power tool, remove the battery.
 Dust from materials such as lead-containing coatings,
some wood types, minerals and metal can be harmful to
one's health. Touching or breathing-in the dust can cause
allergic reactions and/or lead to respiratory infections of
the user or bystanders.
Certain dust, such as oak or beech dust, is considered car-
cinogenic, especially in connection with wood-treatment
additives (chromate, wood preservative). Materials con-
taining asbestos may only be worked by specialists.
– To achieve a high degree of dust extraction, use the
vacuum cleaner type GAS 25/GAS 50/GAS 50 M for
wood or GAS 50 MS for wood and/or mineral dust in
conjunction with this power tool.
– 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.
Mounting the Extraction Adapter (see figure B)
Fasten the extraction adapter 26 to the base plate 6 with the
fastening screw 25.
A vacuum hose with a diameter of 35 mm can be connected to
the extraction adapter 26.
 The extraction adapter may not be mounted when no
external dust extraction is connected. Otherwise the ex-
traction channel can become clogged.
 Do not connect a dust bag to the extraction adapter.
Otherwise the extraction system can become clogged.
To ensure optimum extraction, the extraction adapter 26
must be cleaned regularly.
External Dust Extraction
Connect the vacuum hose 27 to a vacuum cleaner (accesso-
ry). An overview for connecting to various vacuum cleaners
can be found at the end of this manual.
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.
1 609 92A 3Z3 | (16.6.17)
Operation
Operating Modes
 Before any work on the power tool, remove the battery.
Adjusting the Cutting Depth (see figure C)
 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 the clamping lever 29. For a smaller cutting depth,
pull the saw away from the base plate 6; for a larger cutting
depth, push the saw toward the base plate 6. Adjust the de-
sired cutting depth at the cutting-depth scale. Tighten the
clamping lever 29 again.
The tightening tension of the clamping lever 29 can be read-
justed. For this, unscrew the clamping lever 29, and screw it
back again turned offset by at least 30° in anticlockwise direc-
tion.
Adjusting the Cutting Angle
It is best to place the machine on the face side of the blade
guard 4.
Loosen wing bolt 11. Tilt the saw sidewards. Adjust the de-
sired setting at the scale 13. Tighten wing bolt 11 again.
Note: For bevel cuts, the cutting depth is smaller than the set-
ting indicated on the cutting-depth scale 28.
Cutting Marks
0° 45°
0°
The 0° cutting mark 9 indicates the position of the saw blade
for right-angled cuts. The 45° cutting mark 10 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
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.
Insert the charged battery 3 from the front into the base of the
power tool. Push the battery completely into the base until
the red stripe can no longer be seen and the battery is secure-
ly locked.
45°
Bosch Power Tools