Cutting Metal; Tools And Accessories - KRESS 420 ST E Manual Original

22 English
-NOTE-
Check the tight seating of the saw blade.
EN
A loose saw blade can fall out and lead to inju-
ries.
Unclamping saw blade
Rotate clamping lever 8 as far as it will go and
hold in place.
Remove saw blade 7.
-NOTE-
Do not press back turned clamping levers as this
makes it very difficult to remove the saw blade.
Operating tips
Operation of pendulum jigsaw
When sawing, make sure that the base plate is sit-
ting securely on the workpiece. The jigsaw can
now be easily operated by hand. To achieve clean
cuts and optimal cutting performance, make sure
the correct pendulum stroke for the material has
been selected on the feed, which should also be
adjusted for the material (e.g. pendulum stroke
setting 0 and slow feed when sawing metals).
The built-in blower keeps the cut continuously free
of chips for perfect visibility.
Recommended stroke numbers
The optimal speed setting is to be determined in
tests at the beginning of the sawing job, as several
factors such as material, thickness of material,
condition of the saw blade, may influence the re-
sults of the job.
Low stroke number when sawing glass, ceram-
ics, metal.
Medium-range stroke number when sawing
plastic, pressed material and plywood.
High stroke number when working hardwood,
soft wood and chipboard.

Cutting metal

When sawing metal, coolant/lubricant should be
applied alongside cutting line because of the ma-
terial heating up.
Sheet metal is to be clamped to a suitably solid
base (clamping plate or plywood plate). This elim-
inates as far as possible the risk of the material
springing back and forth.
ST-EN / 0902
Cutouts
For cutouts, drill a hole i.e. a starting point where
the saw can be inserted.
Plunge Cutting „A"
Plunge cuts may only be applied to soft materials,
such as wood, gypsum plaster boards, etc.!
Use only short saw blades for plunge cutting.
Plunge cutting is possible only with the mitre angle
set at 0°.
Place the machine with the front edge of the base
plate 4 on to the workpiece without the saw blade
7 touching the workpiece and switch on. For ma-
chines with stroke rate control, select the maxi-
mum stroke rate. Firmly hold the machine against
the workpiece and by tilting the machine, slowly
plunge the saw blade into the workpiece.
When the base plate 4 fully lays on the workpiece,
continue sawing along the desired cutting line.

5. Tools and accessories

Selecting a Saw Blade
Only original Kress saw blades as listed in the op-
erating manual or in accordance with the following
sketch with a max. thickness of 1.5 mm may be
used. This is the only way to guarantee that the
saw blade is securely fastened and reduce as far
as possible the risk of accidents caused by the jig-
saw blades becoming loose.
The saw blade should not be longer than required
for the intended cut.
Use a thin saw blade for narrow curve cuts.
Parallel fence (optional accessory)
For perfect results with parallel cuts use the grad-
uated parallel fence 11.
Once the clamping wheel 6 is loosened, the
parallel fence 11 is inserted from the side into
the slot in the base plate 4, set according to
scale, and fixed with the clamping wheel 6.
Tools and accessories