Promac 349V Operating Instructions Manual page 7

To clamp the workpiece, rotate the lever in clockwise
direction.
To unlock, rotate in counter-clockwise direction.
Note:
The workpiece must properly be clamped during machining,
otherwise machining errors and blade damage can occur.
7.4 Feed pressure selection
A good indication of proper feed pressure is the shape of
the cutting chips.
Perfect:
Loose curled chips
If the chips are thin or powdered increase the feed
pressure.
If the chips are burned reduce the cutting speed and
decrease the feed pressure.
7.5. Choosing the saw blade
Choose a toothing that is appropriate to the workpiece
being processed. Ideally, at least 3 teeth should be in
action at the same time.
The toothing should not be smaller than necessary, as the
cutting speed is reduced if there are too many small teeth
working on the workpiece simultaneously, which causes
the saw blade to wear more quickly, and makes the cuts
crooked and distorts them.
The following table shows the approximate toothing of the
saw blades for a specific material thickness. For further
information please contact your saw blade dealer.
Table for saw blade selection:
Material thickness No. of teeth per inch
< 3 mm
2 - 5 mm 10 / 14
4 - 8 mm 8 / 12
Fig 6
Art. No.
14 2201
2202
2203
Comments:
10/14 toothing provides good cutting results for thin-walled
pipes and profiles.
The choice of toothing (i.e. the number of teeth per inch)
should be such that at least 3 teeth are always in action at
the same time.
When cutting thick material, a coarse Tooth Pitch "T" is
needed to accommodate the big chips (fig 9).
7.6 Cutting speed selection
The general rule is the harder the material being cut, the
slower the blade speed.
25 - 30 m/min (Position 1)
for stainless steel, alloy steel and bearing bronzes.
6
Fig 7
Fig 8
Fig 9