Standard Equipment; Starting The Machine - Virutex SRI174T Manual De Instrucciones

• Do not place your hands in the sawing area or near
the saw blade. Hold the machine with both hands, using
the two handles of the circular saw. This will prevent
them from being injured by the saw blade.
• Do not hold the piece to be sawn from below. The
saw protection does not cover the saw blade below the
piece to be sawn.
• Adapt the cutting depth to suit the thickness of the
material. No more than one complete tooth's height
should be visible under the material.
• Never hold the piece you are going to saw with one
hand or on your leg. Place the piece somewhere it is
well supported. It is very important to fix the material
correctly in order to minimise risks of contact with the
body, jamming of the sawing blade or loss of control.
• Wear the appropriate personal protection equip-
ment:
ear protection, protective goggles and a mask for dusty
work, and protective gloves when working with rough
materials and when changing tools.
1. 3 CAUSES OF BACKLASH
AND WAYS TO AVOID IT
• A backlash is the unexpected reaction of a saw blade
which becomes jammed, blocked or is incorrectly alig-
ned, which may lead to the saw exiting the material in
an uncontrolled fashion and being deflected towards
the user.
• The saw blade becomes blocked when it becomes
hooked or jammed in the slot being sawn which beco-
mes narrower, and the strength of the motor jerks it
backwards towards the user.
• If the saw blade becomes twisted or incorrectly aligned,
the teeth on the lower part of the saw can become stuck
in the surface of the material, making the blade jump
out towards the user. Backlash occurs as a consequence
of incorrect or inappropriate usage of the saw. It can
be avoided if the appropriate precautionary measures
described below are taken.
• Hold the saw with both hands and position your arms
in such a way as to be able to deal with the strength
of a backlash. Always hold the saw blade to one side.
Never place it in line with your body. In the event of a
backlash the circular saw may jerk backwards. However,
the force of the backlash can be controlled by the user
by applying the appropriate measures.
• In the event of the saw blade becoming blocked or the
sawing work stopping for any other reason, release the
on/off switch and hold the saw firmly in the material
until the saw blade has stopped completely. Do not under
any circumstances attempt to take the saw out of the
material or pull the saw backwards while the blade is
moving, as this may cause a backlash. Determine the
cause of the saw blade blockage and rectify the problem
by taking the appropriate measures.
• If you want to carry on working with a saw blade that
is in material, centre the blade on the sawing groove
and make sure that the teeth of the saw are not stuck
in the material. If the saw blade is stuck, it may come
out of the material or cause a backlash when it is
turned on again.
• Prop up large panels to prevent the risk of a backlash
when a saw blade becomes stuck. Large panels may
bend due to their own weight. The panels must be
supported on both sides, next to the sawing groove
and also on the edge.
• Do not use blunt or damaged saw blades. Saw blades
with blunt or incorrectly aligned teeth result in increased
friction, blocked saw blades and backlash, as the saw
groove is too narrow.
• Before starting to saw, set the cutting depths and angles.
If the settings change while sawing, the saw blade may
become stuck and could cause a backlash.
• Be especially careful when making plunge cuts in a
hidden area, such as a wall. The saw blade making the
plunge cut may become blocked when it comes across
hidden objects and cause a backlash.
2. SPECIFICATIONS
Motor.................................................50/60Hz
Imput power..........................................1150 W
No-load speed...................................5500/min
Saw diameter......................................160 mm
Depth of cut at 90°................................55 mm
Depth of cut at 45°...............................35 mm
Dividing knife............................................Yes
Weight....................................................4,7 Kg
Weighted equivalent continuous
acoustic pressure level A..................................................89 dBA
Acoustic power level A...................................................100 dBA
Uncertainty...................................................................K = 3 dbA
Wear ear protection!
Vibration total values.................................................a
Uncertainty....................................................................K: 1.5 m/s

3. STANDARD EQUIPMENT

• SRI174T plunge-cut circular saw in transport case
• One M5 Allen Key
• One dust collector connection N (Fig. 12),
ref.8204262
• Operating instructions and miscellaneous documen-
tation.
• 800 mm guide rail (only with the SRI174T-UCP 800
mm model)

4. STARTING THE MACHINE

• Switching On - Press the safety button B then press
: 3.5 m/s
2
h
2
9