Connecting The Vacuum Cleaner (Fig. 5); Saw Blades; Clamping And Changing The Saw Blade; Pushing The Saw Table Back Or Into The Working Position (Fig. 6) - Proxxon DS 460 Manuel

7.5 Connecting the Vacuum Cleaner (Fig. 5):

WARNING
Saw dust from certain materials can be hazardous
to your health if inhaled or if it touches your skin.
For that reason, always wear appropriate protective
clothing (e.g. respirator) and always work with the
suction device.
Dust in certain concentrations can generate an explo-
sive mixture in the air!
1. Push the rubber connector 1 onto the connecting piece 2.
2. Push the vacuum cleaner hose 3 onto the rubber connector 1.
3. Switch on the vacuum cleaner before sawing so that the sawdust is
sucked off and the suction device is not blocked.

7.6 Saw Blades

Always pull out the mains plug for all the activities
described here.
Only use suitable saw blades. Make sure that the saw blades are suit-
able for use with the DS 460. You must comply with the dimensions
specified in the technical data.
Please make sure that the saw blade is in perfect condition and change
damaged or worn saw blades immediately! Deformed or damaged saw
blades are dangerous to work with and may not be used!
They also produce poor work results: Full sawing performance and pre-
cision can only be achieved with perfect saw blades.
We recommend the use of original PROXXON saw blades!
Choose the suitable saw blades carefully and for the respective applica-
tion and material to be sawn.
Proxxon supplies different fine teeth, flat and round blades and blades
with and without pin ends. You will find our range of blades in the Micro-
mot catalogue or on the Internet under www.proxxon.com.

7.6.1 Clamping and Changing the Saw Blade

Both conventional saw blades with pin ends and hand (fret) saw blades
without pin ends can be used. The saw table can be pushed back for
optimum accessibility of the saw blade holder so that changing the saw
blades is child's play.
Caution:
Please note that the material hold-down can be swung away to change
the saw blades.
7.6.1.1 Pushing the Saw Table Back or into the Working
Position (Fig. 6)
Please note that the saw table can only be pushed back
when the saw table is in the 0° position, i.e. horizontal.
1. Release clamping screw 1 (fig. 6) of the lock lever 2.
2. Move down the lock lever and push the saw table 3 back.
3. Pull the saw table 3 forward after attaching the saw blade. The lock
lever is actuated automatically in the front end position and locks
the saw table.
10
DANGER
CAUTION
CAUTION
7.6.1.2 Saw Blades with Flat Ends (Hand and Fret Saw
Blades) (Fig. 7a and 7b):
The concept of the DS 460 is not designed like conventional scroll saws
to simply clamp the blades in the saw blade holders at the ends of the
saw arms. This conventional clamping method inevitably leads to fluc-
tuating bending forces in the saw blade when the saw arms move up
and down because the pendulum movement cannot be compensated.
These cause heavy wear, the saw blade can break sooner.
Frequent blade changing is not to everyone's liking either. We have de-
signed the clamping method with sliding blocks for all those who do not
want to do without the more accurate guiding of the blades with flat ends
(unlike those with pin ends) but do not want their disadvantages.
There is no lateral twisting in the attachment yet the blades can still
follow the up and down movements of the saw arms freely without being
exposed to bending forces.
1. Place the sliding blocks 1 (fig. 7a) in the openings provided in the
saw table 2. The right clamping length is defined immediately. Cau-
tion: The clamping nuts 3 must be loosened and facing upwards!
The sliding blocks must be inserted so that the pointed ends are
facing each other, i.e. inwards.
2. Insert the saw blade in the centre of the clamping slit and tighten
the clamping nuts with the Allen key 5 provided. Caution: The saw
blade must be inserted the same distance into the clamping slit on
both sliding blocks.
3. Push back the saw table 2 as described above and fold away the
material hold down 6 if necessary.
4. Turn the knob 7 to the left to loosen the tension on the saw blade.
5. Remove the saw blade if necessary and insert a new saw blade 4
with the sliding blocks into the saw blade holders as shown in fig.
7b. Slight pressure can be applied to the top arm as required or the
blade tension can be loosened further on the knob 7 if necessary.
Caution: The teeth of the blade must face downwards!
6. Pull the table forward again as described above.
7. Regulate the saw blade tension as described in the section "Fine
Setting of the Correct Saw Tension".

7.6.2 Saw Blades with Pin Ends (Fig. 8):

Saw blades with pin ends are very suitable for working with many closed
inside cuts. Here, the saw blade can be taken quickly and conveniently
out of the top holder, looped through the workpiece and reattached. De-
tails can be found in the "Inside Cuts" section. But be carefully: The pre-
cision of the guiding with pin end blades is inferior to that of saw blades
with flat ends and sliding blocks. Absolute precision in the guiding of the
cut can only be achieved with these.
1. Push back the saw table 1 as described above and swing away the
material hold down 2 if necessary.
2. Turn the knob 3 to the left to loosen the tension on the saw blade.
3. Fit the saw blade 4 with the teeth facing downwards into the bottom
holder 5.
4. Press the top arm 6 lightly if necessary and remove a saw blade
already in the holder. Attach a new saw blade to the top holder 7.
Loosen the saw blade tension further with the knob 3 if necessary.
5. Release the arm after attaching the blade and set the blade tension
with the knob 3.
6. Regulate the saw blade tension as described in the section "Fine
Setting of the Correct Saw Tension".

7.6.3 Fine Setting of the Correct Saw Tension (Fig. 9):

The right saw tension is decisive for a good work result. It must therefore
be set carefully. The saw blade can also break if it is too tight or too slack.
Please turn the knob 1 (fig. 9) to set the tension. The saw blade is tight-
ened by turning the knob to the right (clockwise) and loosened by turning
it to the left (anticlockwise).
A correctly tensioned blade emits a high tone when "plucked".