of the saw blade.
- Use only sharp saw blades in perfect con dition.
- Uncoated saw blades can be protected from
corrosion with a thin coat of acid free oil.
- Resin and glue on the saw blade cause poor
cutting results. Therefore, clean the saw blade
immediately after use.
8.1 Working different materials
Wood
The proper selection of the saw blade is depend-
ent on the type and quality of the wood as well as
whether the wood is to be sawed along or across the
grain. Beech and oak dust is especially detrimental
to health and therefore should be worked only with
vacuum dust extraction.
Plastic
When cutting plastic, especially PVC, long, spiral
shaped shavings are produced that can be electro-
statically charged.
This can cause the ejector to become clogged and
the swinging protective guard [1-8] to stick. The
use of a dust extractor for dust extraction is recom-
mended.
Apply the machine running against the work piece
and carefully start sawing. Then saw steadily and
without interruption so that the saw teeth have less
chance of sticking.
Non-ferrous Metals
Use only a suitable and sharp saw blade. This en-
sures a clean cut and prevents jam ming of the saw
blade.
Apply the machine running to the workpiece, care-
fully start sawing and then saw with slow feeding
and without interruption.
For profiles, always start the cut on the small side;
for U-profiles, never start the cuts on the open side.
Support long profile, otherwise the saw blade can
become jammed when the profile tips over and the
machine can "kick back".
Material with Mineral Content (Light building ma-
terial)
- Only dry cutting is permitted.
- Use vacuum dust extraction. The dust extractor
must be suitable for masonry dust.
8.2 Two-Man Operation
The machine has several handholds to allow it to
be used by one or two operators, depending on the
confi guration.
Illustration 4a is for one-man operation.
Illustration 4b is for two-man operation.
9
Using Attachments
You can extend the use of your circular saw by us-
ing the NS-HK 250x50 planing attachment and the
RS-HK 160x80 curve-cutting attachment available
from the Festool range.
WARNING
Risk of accident, electric shock
Always pull the plug out of the socket before
performing any type of work on the machine.
9.1 NS-HK 250x50 Planing Attachment
Using the planing attachment, you can mill grooves
and rabbets to a max. depth of 80 mm and a width
of 50 mm (see diagrams below).
Set the saw to minimum cutting depth.
Remove the saw blade [3-3] by following the in-
structions in Section 7.7 (Replacing the saw blade).
Unscrew the following components:
Plate [5-1] covering the blade guard
Guard [5-2] covering the pendulum mount
Dust extraction connection [5-3]
Riving knife [5-4]
Ensure the planing head [6-3] is clean and fi tted ac-
cording to the illustration and screw it tight. Ensure
that the mounting fl ange [6-1] and the clamping
fl ange [6-2] are in the correct position. The holes
in the planing head [6-3] must fi t onto the follow-
up pins on the mounting fl ange [6-1]. Insert the pin
[6-4] into the hole on the planing head to secure it.
Screw the cover guard [6-5] onto the pendulum
mount [6-6].
Screw the cover guard [6-7] onto the blade guard
[6-8].
Select the depth to be milled as described in Section
7.2 (Cutting Depth Adjustment).
9.2 RS-HK 160x80 Curve-Cutting Attachment
Using the curve-cutting attachment, you can sink
grooves, mill and cut curves as illustrated below.
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