English |
15
Bosch Power Tools
1 609 929 W20 | (23/3/10)
Dust/Chip Extraction
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 reac-
tions 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 con-
nection with wood-treatment additives (chro-
mate, wood preservative). Materials containing
asbestos may only be worked by specialists.
– Use dust extraction whenever possible.
– 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.
The dust/chip extraction can be blocked by
dust, chips or workpiece fragments.
– Switch the machine off and pull the mains
plug from the socket outlet.
– Wait until the saw blade has come to a com-
plete stop.
– Determine the cause of the blockage and cor-
rect it.
Integrated Dust Extraction (see figure C)
For basic dust collection, use the dust bag
21
provided.
– Press the clip of the dust bag
21
together
and slide the dust bag over the saw dust
ejector
25
. The clip must engage into the
groove of the saw dust ejector.
During sawing, the dust bag must never come in-
to contact with the movable machine parts.
Always empty the dust bag in good time.
f
Check and clean the dust bag each time af-
ter using.
f
When sawing aluminium, remove the dust
bag to avoid the risk of fire.
External Dust Extraction
For dust extraction, a vacuum hose (size
Ø 36 mm) can also be connected to the dust
ejector
25
.
– Connect the vacuum hose with the sawdust
ejector
25
.
The vacuum cleaner must be suitable for the ma-
terial being worked.
When vacuuming dry dust that is especially det-
rimental to health or carcinogenic, use a special
vacuum cleaner.
Changing the Tool (see figures E1
–
E3)
f
Before any work on the machine itself, pull
the mains plug.
f
When mounting the saw blade, wear protec-
tive gloves.
Danger of injury when touching
the saw blade.
Use only saw blades whose maximum permitted
speed is higher than the no-load speed of the
power tool.
Use only saw blades that correspond with the
characteristic data given in these operation in-
structions and that are tested and marked in ac-
cordance with EN 847-1.
Use only saw blades recommended by the tool
manufacturer, and suitable for sawing the mate-
rials to be cut.
Removing the Saw Blade
– Bring the power tool into the working posi-
tion.
– Press lever
1
and swing back the retracting
blade guard
4
to the stop.
Hold the retracting blade guard in this posi-
tion.
– Loosen the screw
32
with the Phillips screw-
driver
28
provided until the fastening ele-
ment of the retracting blade guard can also
be swung to the rear to the stop.
– Turn the Allen screw
34
with the Allen key
28
provided while at the same time pressing the
spindle lock
33
until it engages.
– Hold the spindle lock
33
pressed and un-
screw the Allen screw
34
in clockwise direc-
tion (left-hand thread!).
OBJ_BUCH-1028-003.book Page 15 Tuesday, March 23, 2010 4:04 PM
