Dust/Chip Extraction - Bosch GFF 22 A Professional Manual Original

OBJ_BUCH-268-002.book Page 21 Wednesday, April 23, 2008 10:14 AM
Assembly
Installing/Replacing the Cutting Disc
(see figures A–B)
Before any work on the machine itself, pull
the mains plug.
For installing and replacing cutting discs, it
is recommended to wear protective gloves
Protect cutting discs against shock and im-
pact.
The machine may be operated exclusively with
the Bosch cutting disc 3 608 641 013.
Use only clean cutting discs that are in perfect
condition.
– As necessary, set the angle stop 17 to 0°
(see "Setting the Cutting Angle", page 23)
and the adjustable height stop 10 to the max-
imum height (see "Setting the Adjustable
Height Stop", page 22).
– Turn the machine around so that the base
plate 33 faces upward.
– Loosen the clamping screw 32 by approx.
3 turns.
Note: Do not completely unscrew the clamp-
ing screw 32 so that the lock washer 31 is not
lost. Without the lock washer, the base plate
33 cannot be secured.
– Pivot the base plate 33 upward. Hold the ma-
chine in such a manner that the base plate
will not pivot back.
– Press the spindle lock button 15 and keep it
pressed.
– Loosen and remove the clamping nut 24 with
the two-pin spanner 23 provided.
– Remove the cutting disc 25 if mounted, and
clean it.
– Remove the mounting flange 28 if mounted,
and clean it.
– Place the mounting flange 28 onto the cutter
spindle 29 in such a manner that the centring
collar 27 (22 mm diameter) faces upward.
The flats of the mounting flange must engage
onto the flats of the cutter spindle (anti-twist
protection).
Bosch Power Tools
– Place the clean cutting disc 25 as shown in
the figure onto the mounting flange 28 in
such a manner that the direction-of-rotation
arrow on the cutting disc 26 is visible and
corresponds with the direction-of-rotation
arrow of the cutter spindle 30. The mounting
bore of the cutting disc must engage in the
centring collar 27 of the mounting flange.
– Screw the clamping nut 24 onto the cutter
spindle 29. With the spindle lock button 15
pressed, firmly tighten the clamping nut with
the two-pin spanner 23.
Check if the cutting disc is properly mount-
ed and rotates freely.
– Pivot the base plate 33 down. Pay attention
that the lock washer 31 rests on the base
plate (with the clamping screw 32 alone the
base plate cannot be fastened securely).
– Tighten the clamping screw 32.
Check if the base plate 33 is locked securely.

Dust/Chip Extraction

Dusts from materials such as lead-containing
coatings, some wood types, minerals and
metal can be harmful to one's health. Touch-
ing or breathing-in the dusts can cause aller-
gic reactions and/or lead to respiratory infec-
tions of the user or bystanders.
Certain dusts, such as oak or beech dust, are
considered as carcinogenic, especially in
connection with wood-treatment additives
(chromate, wood preservative). Materials
containing asbestos may only be worked by
specialists.
– Use dust extraction whenever possible.
– Provide for good ventilation of the work-
ing place.
– It is recommended to wear a P2 filter-
class respirator.
Observe the relevant regulations in your
country for the materials to be worked.
Clean the vacuum connection 21, if required.
For this, pivot up the base plate 33 (see "Install-
ing/Replacing the Cutting Disc", page 21) and
pull off the vacuum connection.
1 609 929 N81 | (23.4.08)
English | 21