KRESS 650 SPS Manual Original página 22

22 English
Clamping saw blade
 Rotate tension lever 6 as far as it will go and
hold it fast.
EN
 Insert saw blade 8 as far as it will go.
 Release tension lever 6.
Unclamping saw blade
 Rotate clamping lever 6 as far as it will go and
hold in place.
 Remove saw blade 8.
-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.
When sawing metals, put some oil onto the cutting
line. Sheet metal should be clamped onto a suf-
ficiently secure base (chip board or plywood
board). This eliminates the risk of the material
springing back.
Presetting the Stroke Rate
In devices with a setting dial 2, you can select the
speed using the setting dial 2 depending on the
area of application.
When under load, the digital electronic control
provides for more power.
1-2: Low stroke rate
3-4: Medium stroke rate
5-6: High stroke rate
SPS-EN / 0912
Recommended speeds
The optimal speed setting should be determined
in tests at the beginning of the sawing job, as se-
veral factors such as material, thickness of mate-
rial, condition of the saw blade, may influence the
results of the job.
Low speed when sawing glass, ceramics, metal.
Medium-range speed when sawing plastic, pres-
sed material and plywood.
High speed when working hardwood, softwood
and chipboard.
-NOTE-
After longer periods of work at low stroke rate, the
machine can heat up considerably. Remove the
saw blade from the machine and allow the
machine to cool down by running it for approx. 3
minutes at maximum stroke rate.
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.
Cutouts/Pocket cuts
For cutouts, drill a hole i.e. a starting point where
the saw can be inserted.
Plunge cuts into the material (only when working
wood) is possible, but should only be attempted by
skilled people. The jigsaw is switched on and pla-
ced on the work at an angle of 55–60° to the front
edge of the base plate and pushed down slowly
and carefully.
Particular care is required at the start of these
kinds of jobs: kickbacks and jerks will result if the
jigsaw is started the wrong way, whilst excessively
fast plunge cuts may result in broken blades. Only
perform plunge cuts at the max. number of stro-
kes.
Operation