Femi 780P Instructions For Use And Maintenance Manual - page 14
10
EN
3.5
SLIDING BLADE GUIDE (Fig. 8)
The sliding blade guide P with integrated protection fitted
on your sawing machine is used to perform the cut while
guiding the necessary part of the blade and fully protecting
the part not used in the cutting process.
Slacken the knobs Q and slide the blade guide P so as to
move it closer to or further from the part to be cut, as
shown in the figure.
ATTENTION: If this adjustment is not done, the
part of the blade not used in the cutting process
will be exposed and this will create an extra
risk of contact, besides altering the quality of
the cut.
3.6
BEARINGS BLADE GUIDE (Fig. 9)
The blade-guide on the outside of the sawing machine are
eccentric and adjustable so as to simplify blade replacement
and to keep it guided as its best.
They must always touch the blade slightly, so that they
rotate when the blade passes, but must not be completly
locked.
In order to approach or remove the eccentric blade-guide,
gently turn the head of the screws S using a 10 mm.
wrenches key.
4
USE
4.1
RUNNING IN THE BLADE
ATTENTION: If the correct running in procedure
is not performed, the blades cutting precision
may be irreparably compromised.
To obtain the best performance, the bi-metal blades fitted
on your sawing machine must be run in for a short period.
For this reason the first two or three cuts should be done
where possible on a solid piece D.40-50 mm, using a very
slight pressure on the blade, and gradually increasing
pressure in subsequent cuts. To gauge the correct pressure
in normal operating conditions defined by this manual (see
cutting table), consider for example that the first cut on
solid steel (eg. C40) D.50 mm should be done in about 4
minutes.
After running-in, the same piece may easily be cut in
about 2 minutes. If the running-in process is done correctly,
the finish and precision of the cut will be of better quality
and the blade will last longer.
4.2
WORKING (Fig. 7)
Push the green button 1 of the main switch D to anable
machine operation.
ATTENTION: Before starting any cutting
operation, check that all the protections are
complete and in the correct position.
Once you have completed all the procedures and operations
described so far, you may start the working processes.
To perform the cut, move to the front of the machine and
grip the handgrip with your right hand.
ATTENTION: Keep your left hand away from the
cutting area and on no account try to reach it
when cutting is in process.
Using the index finger of your right hand, press the run
button A (Fig. 4) and gradually lower the machine body
until it comes lightly into contact with the part to be cut.
Now begin to apply gradual pressure on the part and
complete the cut.
ATTENTION: Always release button A between
one cutting operation and another, while you
are positioning the part. do not try to block it
or alter its functional characteristics in any
way.
4.3
REPLACING THE BLADE (Fig. 9)
CAUTION: When you perform this operation,
always wear protective gloves to avoid contact
with the teeth of the blade.
- check that the main switch D is at position 0;
- slacken the handle Q and slide the blade guide P as far
as it will go, following the direction on the arrow (Fig.
8);
- remove the protective casing unscrewing the four
screws;
- slacken the blade tension, turning the handwheel B in a
anti-clockwise direction;
- using a 10 mm. spanner, slacken the exagonal nuts R
on the two blade guides on the outside of the blade
(Fig. 9);
- with the same spanner gently turn the head of the
screws on the same blade-guide in a anti-clockwise
direction so as to move the bearings far enogh away
from the blade to enable you to extract it easily from
the guides;
- extract the blade first from the guides and then from
the rubber coated pulleys;
- insert the new blade first between the guides and then
onto the rubber coated pulleys, with the teeth facing as
showed in picture 9;
- put the blade under tension again as described in point
3.1 and reposition the two outer blade guides in slight
contact with the blade, turning the head of the screws
S in a clockwise direction;
- lock the two exagonal nuts R again;
- replace the protective casing, being careful to insert
the blade between the straps of the protection T;
- reposition the blade guides P in the correct position for
the next cut.