Festool BS 105 Operating Instructions Manual - page 5
8
The most suitable belt speed must be found by
trial and error when starting work, because
there are several prime factors which influence
the choice, such as the surface and quality of
the workpiece, the make of abrasive belt and
grit, skill of the operator etc.
The figures shown in the table are only
recommended values.
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2
The belt speed is infinitely adjustable up to the
maximum setting while work is in process.
This is done by turning the set wheel
(2.1).
It must be remembered that at low speed
settings the sander has a lower power output.
In order to avoid overloading, therefore, the
speed has to be increased by turning the set
wheel if it turns out that the belt speed falls
sharply while working.
4
Operation
Only to be switched on when the machine is
raised. Using the lock on button (1.2), the
switch (1.3) can be locked in the ON position.
Before sanding, check the alignment of the belt
and if necessary, adjust by turning the adjusting
knob (1.4) until the belt is flush with the outside
edge of the sanding face.
Using both hands, place the machine straight
onto the workpiece to be sanded.
The actual weight of the machine provides
adequate sanding pressure to produce good
sanding quality.
The expelled cooling air can be guided in the
most favourable direction by the ducting flap
(1.1) .
4.1
Working with the sanding frame in
the case of type BS 105 E - Set
Set the machine with the knurled head screw
(2.4), so that when it is placed on the workpiece
surface the sanding belt does not engage.
The sanding belt is engaged by turning the
knurled head screw towards the plus symbol
until the belt makes contact.
Continue turning the knurled screw to achieve
the desired depth of stock removal (1 complete
turn corresponds to a height adjustment of
0.4 mm).
When interrupting or on completing work, the
sander is raised from the working position (2.3)
set to a position of rest (2.2) by means of an
eccentric lever.
By swinging the eccentric lever back to working
position the depth of stock removal set
previously is again obtained.
4.2
Taking the sanding frame off
Press down the knurled head screw (2.4) until
the shank (2.5) springs out of the spring catch
and the machine can be withdrawn from the
rear.
The sander and sanding frame are
aligned for optimum accuracy at the
factory by suitable adjustment of the
guiding struts.
For this reason do not remove the
guiding struts.
4.3
Assembling the sanding frame
Make sure that the glide pins (2.6, 2.8) fixed
to the sanding frame engage front and back in
the grooves of the guide struts (2.7, 2.9).
Slide the sander downwards along the grooves
until the shank (2.5) engages.
4.4
Changing the sanding belt
Pull the lever (3.5) forward; the belt is now
slack and can be removed.
When fitting a new belt, take special care to
ensure that the arrow on the inside of the belt
points in the same direction as that on the
sander (3.4).
Tighten the belt again with the lever and align
when running.
4.5
Dust extraction
The dust produced while working can
be detrimental to health, combustible
or explosive.
Suitable safety measures are
necessary.
The dust bag (4.1) with the adopter (4.3) is
attached to the exhaust duct (4.2) by means
of a bayonet catch by turning to the right.
The dust bag is removed for emptying by
turning it to the left.
At the time of fixing, ensure that the leaf spring
stud touches the belt housing.
The dust extraction system will continue to
function effectively as long as the bag is
emptied in good time.
For working with the protection of the environ-
ment in mind it is advisable to use the Festool
dust extraction system.
The connecting socket from the suction hose
can be connected using the adapter (4.4) which
is supplied as standard.
Seen at Ideal Tools.