KRESS 420 ST E Mode D'emploi page 23

22 English
Cutting metal
When sawing metal, coolant/lubricant should be
applied alongside cutting line because of the
EN
material 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.
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 machines
with stroke rate control, select the maximum stroke
rate. Firmly hold the machine against the work-
piece 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
operating manual or in accordance with the follow-
ing 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.
ST-EN / 1105
All manuals and user guides at all-guides.com
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.
Circular cutter (optional accessory)
For circular cuts a graduated circular cutter is
available (assembly as for parallel fence). The
threaded pin of the knobtype handle permits re-
adjustment if a greater downward pressure is
required according to material, or if the tip of the
threaded pin has been re-ground. Make sure that
the counter nut is always well-tightened.
Optional Accessory
Do not use accessories made by other manufac-
turers, as these are not tested by KRESS.
It can be dangerous to use such accessories.
To avoid injury and damage, use only accessories
recommended by KRESS.
6. Maintenance and Service
Maintenance and Cleaning
Before carrying out any work on the
machine, pull the mains plug.
Always keep the machine and ventilation
slots clean.
Wipe off the accessible plastic parts regularly
with a cloth without cleaning agent.
Always keep the tool holder clean.
The movable supporting roller for the saw
blade should be given a drop of oil from time
to time.
-NOTE-
In extreme working conditions, conductive dust
can accumulate in the interior of the machine
when working with metal. The protective insula-
tion of the machine can be degraded. The use of
a stationary extraction system is recommended in
such cases as well as frequently blowing out the
ventilation slots and installing a residual current
device (RCD).
Tools and accessories