Bosch PKS 40 Manual Original página 17

OBJ_BUCH-179-004.book Page 17 Friday, April 12, 2013 9:22 AM
Assembly
Mounting/Replacing the Saw Blade
 Before any work on the machine itself, pull the mains
plug.
 When mounting the saw blade, wear protective gloves.
Danger of injury when touching the saw blade.
 Only use saw blades that correspond with the charac-
teristic data given in the operating instructions.
 Do not under any circumstances use grinding discs as
the cutting tool.
Selecting a Saw Blade
An overview of recommended saw blades can be found at the
end of this manual.
Removal of the Saw Blade (see figure A)
– Tilt back the retracting blade guard 11 and hold firmly.
– Lock the clamping flange 20 using an open-end spanner
24 (size 22 mm) or position the saw blade 21 onto a piece
of wood.
– With the Allen key 3, unscrew the clamping bolt 23 turning
in rotation direction .
– Remove the clamping flange 20 and the saw blade 21 from
the saw spindle 19.
Mounting the Saw Blade (see figure A)
– Clean the saw blade 21 and all clamping parts to be assem-
bled.
– Tilt back the retracting blade guard 11 and hold firmly.
– Place the saw blade 21 on to the mounting flange 22. The
cutting direction of the teeth (direction or arrow on saw
blade) and the direction-of-rotation arrow on the blade
guard 16 must correspond.
– Mount the clamping flange 20 and screw in the clamping
bolt 23 turning in rotation direction . Observe correct
mounting position of mounting flange 22 and clamping
flange 20.
– Lock the clamping flange 20 using an open-end spanner
24 (size 22 mm) or position the saw blade 21 onto a piece
of wood.
– With the Allen key 3, tighten the clamping bolt 23 turning
in rotation direction . The tightening torque is between
6–9 Nm, which corresponds to hand tight plus ¼ turn.
Adjusting the Riving Knife (see figure B)
 Before any work on the machine itself, pull the mains
plug.
 Always work with the riving knife, except when carry-
ing out plunge cuts. The riving knife prevents jamming of
the saw blade while sawing.
Adjustment is carried out at maximum cutting depth, see Sec-
tion "Adjusting the Cutting Depth".
Loosen screw 25, adjust the riving knife 12 to the measure
shown in the figure and tighten screw 25 with a tightening
torque between 3.5–5 Nm.
Bosch Power Tools
Dust/Chip Extraction
 Before any work on the machine itself, pull the mains
plug.
 Dusts 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 dusts can cause
allergic reactions and/or lead to respiratory infections of
the user or bystanders.
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 suita-
ble 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.
External Dust Extraction
Mount the vacuum hose 30 (accessory) on to the saw dust
ejector 17. Connect the vacuum hose 30 to a vacuum cleaner
(accessory). An overview for connecting to various vacuum
cleaners can be found at the end of this manual.
The machine can be plugged directly into the receptacle of a
Bosch all-purpose vacuum cleaner with remote starting con-
trol. The vacuum cleaner starts automatically when the ma-
chine is switched on.
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.
Integrated Dust Extraction with Dust Bag
For smaller jobs, a dust bag (accessory) can be mounted. In-
sert the dust bag sleeve firmly into the saw dust ejector 17.
Empty the dust bag at regular intervals to maintain optimum
dust collection.
Operation
Operating Modes
 Before any work on the machine itself, pull the mains
plug.
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 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 6. Tilt the saw sidewards. Adjust the desired
setting at the scale 5. Tighten wing bolt 6 again.
Note: For bevel cuts, the cutting depth is smaller than the set-
ting indicated on the cutting-depth scale 15.
English | 17
1 609 92A 06G | (12.4.13)