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KRESS 650 SPS Instrucciones De Servicio página 8

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The protection roller, which prevents the saw blade from
moving and serves to unburden the mechanical parts (tap-
pet), automatically produces a clamping angle of 90° as a
positive stop. Naturally, this only applies when original saw
blades are used.
Operation of pendulum jigsaw
When sawing, make sure that the base plate is sitting se-
curely on the workpiece. The jigsaw can now be easily
operated by hand. To achieve clean cuts and optimal cut-
ting performance, make sure the correct pendulum stroke
for the material has been selected on the feed, which
should
also
be
adjusted
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 sufficiently secure
base (chip board or plywood board). This eliminates the
risk of the material springing back.
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 placed 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 strokes.
Miter cuts up to 45°
Turn the stop lever (10) 90° to release the saw bench (4) at
the front. You can now push the saw bench (4) to the back
(towards the suction connection piece) and bring it into the
desired tilted position. Turn the stop lever (10) back to lock
the tilted position. You may need to regulate the tension by
turning the lever (10) forwards again and tightening the ten-
sion wheel by turning it clockwise. Turn the lever (10) back
to lock the saw bench (4) into position. The angles 15°, 30°
and 45° can be securely locked into place on the saw
bench (4).
Setting for rectangular cuts in 0° position
(vertical saw blade)
Turn the stop lever (10) 90° to release the saw bench (4) at
the front. Then the saw bench (4) can if necessary be
released from the notches by pulling it backwards, then
rotated into the 0° position and locked in again. Lock the
position of the saw bench (4) by turning the lever (10) back.
You may need to regulate the tension by turning the lever
(10) forwards again and tightening the tension wheel by tur-
ning it clockwise. Turn the lever (10) back to lock the saw
bench (4) into position.
Dust suction
Insert the suction connection piece (9) into the saw bench
(4) from the back. The jigsaw can now be connected to a
commercially available vacuum cleaner. To keep the cut
free of shavings, insert the flexible suction hose into the
opening of the suction connection piece.
Digital electronic control
The stroke speed can be adjusted stepless from 500 spm
to the maximum stroke rate of 3200 spm, and thus adapted
to the respective material requirements. When under load,
the digital electronic control provides for more power. Re-
gulation is carried out via the speed control dial (2) at the
front of the handle.
for
the
material
(e.g.
Speed control range
Position 1,min. stroke rate
approx. 500 strokes/min
Position 6,max. stroke rate
approx. 3200 strokes/min
The digital electronic control is provided with a protection
feature against restarting (no unintended starting, i.e. after
a power outage or when the mains plug has been pulled).
This feature is for your protection. The machine must be re-
started intentionally.
Important!
The motor can become overheated as a result of sus-
tained heavy usage and low speeds.
Recommended speeds
Low speed when sawing glass, ceramics, metal.
Medium-range speed when sawing plastic, pressed
material and plywood.
High speed when working hardwood, softwood and chip-
board.
The optimal speed setting should 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 results of the job.
Pendulum-stroke setting
The change-over from the setting 0-3 is effected by means
of the pendulum-stroke adjusting knob (7) (turning knob).
The mark indicates the pendulum stroke selected.
Recommendations for pendulum stroke settings
Pos. 0
for glass, ceramics, soft steel, non-ferrous me-
tals, aluminium and pressed materials
Pos. 1
for plastics
Pos. 2
for plywood
Pos. 3
for hardwood, softtextured wood, chipboard
It should be noted that the values given are standard
values which may vary according to thickness and hard-
ness of material, grain direction, and also to the condition of
the saw blade.
Parallel fence (optional accessory)
For perfect results with parallel cuts use the graduated paral-
lel fence (5). The parallel fence (5) is inserted from the side
through the clamping plate into the slot in the base plate ac-
cording to the scale and is fixed with the wing bell.
Circular cutter (optional accessory)
For circular cuts a graduated circular cutter is available (as-
sembly as for parallel fence). The threaded pin of the knob-
type 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 coun-
ter nut is always well-tightened.
Sliding block
To prevent the workpiece surface from being scratched,
attach the sliding block (14) onto the saw bench (4) from
the front.
Chip tearing protection
Depending on the intended use, one of the two means of
stress corrosion protection can be used as follows:
for the saw bench (4)
the plastic part (13) is pressed into the saw opening of the
saw bench (4) from underneath (snaps into place).
for the sliding block (14)
the sliding block (14) is attached on the saw bench (4) from
the front, together with the steel part (15) inserted from the top
into the saw opening.

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