Virutex TM43L, Operating Instructions Manual, Page: 11 / 44

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connected to a flexible pipe that can, in turn, be
adapted to an industrial extractor or any centralized
extraction system for collecting the dust and shavings.
We recommend it be connected up to our extractor
AS182K (ref. 8200100) and AS282K (ref. 8200200).
For working on a raised table, in addition to making
the previous connection, connect the standard aspi-
ration connection tube (Ref. 6446073) to the cuff's
nozzle A2 (Fig. 11) for perfect expulsion of shavings.
We recommend you keep the machine permanently
connected to a dust and shavings collection system.
10. OPTIONAL ACCESSORIES
Ref. 3345416 Set of 2 pressers (Fig. 21). Essential
for cross-cutting aluminium sections and plastics.
Ref. 3345470 Set of side handles
Ref. 7246098 Upper table square.
Ref. 5800100 Portable work table MT58K (Fig. 24)
Ref. 8200100 Aspirator AS182K
Ref. 8200200 Aspirator AS282K
11. CLEANING AND MAINTENANCE
Make sure that the machine is discon-
nected from the mains supply before
working on it in any way.
11.1 CHANGING THE SAW BLADE
Release knobs L (Fig. 17) and raise the table to its
maximum position. Then remove cover M using
screws N (Fig. 16). Then release screw W in clockwise
sense, (Fig. 16 and 17) using one of the service keys
and inserting. The other one into the hole on the
transmission cover.
Once the saw blade is released move it upwards and
then remove it down through the side of the head
of the machine, avoiding the protector.
Do the reverse of this operation to insert the new
saw blade, positioning the arrow on the blade in the
same direction as that on the cover.
Check that the seating elements are perfectly clean
and ensuring that the external securing disc fits
perfectly into the recess at the end of the shaft.
- Ensure that the replacement saw
blade is the same diameter as the old
saw blade.
- Do not use damaged or deformed
saw blades.
- Select the correct saw blade for the
type of material to be cut.
- Only use the saw blades which comply
with the conditions contained in this
manual and in every case ensure that
the body of the saw blade is thinner
than the thickness of the keel (2.5
mm) and at the same time the teeth
are wider than this thickness.
11.2 TIGHTENING AND CHANGING THE
BELT
The belt can be tightened by loosening the screws
X (Fig. 23) and slightly shifting the motor by means
of bolt Y. To replace the belt, first remove the trans-
mission cover Z which is held in place by screws A1,
then shift the motor using bolts X, change the belt,
tighten it and then fit the cover back in place.
11.3 CHANGING THE BRUSHES
The brushes must be replaced when they are down
to 5 mm in length. To do this, remove the protective
caps B1 (Fig. 19) and replace them with other original
VIRUTEX brushes, making sure they slide smoothly
inside the guides.
It is advisable to leave the machine idling for a few
minutes after changing the brushes. Take advantage
of changing the brushes to check on the condition
of the commutator. If it shows signs of scorching
or roughness, it is advisable to take it to a VIRUTEX
technical service for repair.
11.4 MOTOR BRAKE
The machine is fitted with a centrifugal mechanical
brake which brings the sawblade to a complete
standstill within less than ten seconds from the
moment it is switched off.
For safety's sake and because it is an extremely
complicated operation, we recommend that as soon
as you notice that the blade stopping time exceeds
this margin, as a result of wear and tear on the brake
pads, you get them replaced by the Official VIRUTEX
Technical Assistance Service. We advise running a
check on the braking time every 200 working hours.
11.5 LUBRICATION AND CLEANING
The machine is delivered fully lubricated from the
factory, requiring no special maintenance throughout
its working life. It is sufficient just to keep it clean
and lubricate the mechanical joints periodically. It