Saw Blades; Clamping In The Saw Blade (Fig. 5A And 5B); Saw Blades With Cross Pin (Fig. 5A); Saw Blades With Flat Ends - Proxxon DSH Manual De Instrucciones

6.6 Saw blades

Caution!
Always remove the mains plug before performing the activities de-
scribed here.

6.6.1 Clamping in the saw blade (fig. 5a and 5b):

Standard blades with cross pins and hand(leaf) blades without cross
pin can be clamped into the saw blade mount.
Replace damaged or worn saw blades immediately. They represent
a safety risk and worsen the work result. The best cutting perform-
ance and precision can only be achieved with perfect saw blades.
Use PROXXON original saw blades and carefully select suitable saw
blades for the intended purpose and material to be cut. With Proxxon,
there are also various fine toothings, flat and round blades, and some
with and without cross pin. You will find suggestions in these in-
structions.

6.6.1.1 Saw blades with cross pin (fig. 5a).

Saw blades with cross pin are particularly suitable for working with
many closed inside cuts. The saw blade can be quickly and comfort-
ably removed from the upper mount, looped through the work piece
and repositioned. You will find more precise information in the sec-
tion "Inside cuts".
Caution!
Saw blades with cross pins may only be hung in position. Do not
clamp the saw blades with the cross pin additionally by means of the
cheese-head screws. Risk of fracture!
1. The the rotary knob 1 (Fig. 6) for saw blade tensioning to the left
until the saw blade is loose.
2. Place saw blade 1 with the toothing pointing downwards through
the table opening 2 and fit in the bottom mount 3.
3. Press lightly on the top arm 5 and fit blade in the upper mount 6,
see fig. 5a).
4. Release arm and by turning the rotary knob 1 (Fig. 6) to the right,
set the saw blade tensioning.
5. If required, finely adjust the saw blade clamp as described under
6.6.2.

6.6.1.2 Saw blades with flat ends

(hand or leaf saw blades, see fig. 5b):

1. Turn rotary knob 1 (Fig. 6) for saw blade tensioning to the left until
the saw blade is loose.
2. Place saw blade 1 with the toothing at the bottom through the
table opening 2 and fit in the bottom mount 3. The cheese-head
screw 4 may not be tightened! Then clamp the blade in the
mount by tightening the cheese-head screw 4 with the supplied
Allen key with T grip 5. Caution: Make sure that the blade is
clamped really far forward! This is where the clamping force is
at its greatest.
3. Press lightly on the top arm 6, introduce the saw blade into the
upper holder 7 and tension in the same way.
4. Release the arm and set the saw blade tensioning by turning the
rotary knob 1 (Fig. 6) to the right.
5. If required, adjust the saw blade clamp as described under 6.6.2

6.6.2 Finely setting the correct saw tensioning (fig. 6):

Correct saw tensioning is an essential factor for a clean work result.
This must, therefore, be carefully set. If over or undertensioned, the
saw blade can lightly crack. Turn knurled button 1 to set the ten-
sioning. If the button is moved to the right (clockwise), the saw blade
is more tightly tensioned. If it is turned to the left (anticlockwise) the
blade is loosened.
A correctly tensioned blade sounds a slight tone if "plucked" like a
string.

6.6.3 Removing saw blade (fig. 5a and 5b):

6.6.3.1 Saw blades with cross pin (fig. 5a).
1. The the rotary knob 1 (Fig. 6) for saw blade tensioning to the left
until the saw blade is loose.
2. Press top arm 5 slightly down so that the saw blade 1 can be
released from the top mount 6. Take out saw blade.
3. Take out saw blade from bottom mount 3 and remove through
table opening 2.
6.6.3.2 Saw blades with flat ends (fig. 5b):
1. The the rotary knob 1 (Fig. 6) for saw blade tensioning to the left
until the saw blade is loose.
2. Open wingnut 8, the saw blade 1 releases from the top mount 7.
3. Open cheese-head screw 7 with the T grip Allen key 5, release saw
blade from the lower mount 3 and remove through the table opening.

7 Working with the saw:

7.1 General information for working with mechanical fret saw:

The mechanical fret saw is predominantly a machine for sawing
curves and precise sections. A typical application is shown in fig. 7.
The work piece must be carefully guided by the operator. Note: Me-
chanical fret saws are normally operated without length stop, as the
saw blade loses its line íf forced in, particularly in the grain of wood.
Please note that the saw blade only saws in reverse motion in the di-
rection in which the teeth point.
For good results, please note the following points:
– When sawing, press the work piece onto the work plate (fig. 7),
guide by feeling and with little power; more pressure on the work
plate, less pressure against the saw blade.
– Make sure that the work piece is lying properly on the saw table
(nor burrs or sawdust)
– Adapt the feed to the requirements by saw blade, speed and work
piece material.
– Hard materials, fine saw blades and thicker work pieces do not "tol-
erate" as much feed as soft materials, rough saw blades and thin
work pieces. You can also experiment with various speeds.
– Guide the work piece slowly into the saw blade, particularly if the
blade is very thin and the teeth very fine or if the work piece is very
thick.
– Only use perfect saw blades.
– Do not let the device operate unsupervised.
– Carefully mark out/block the check line.
– Make sure there is good lighting.
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