centauro SP 400, Руководство по эксплуатации и обслуживанию, Страница: 25 / 50

A-25
A.6.3 The noise in loadless operation is caused by the vibration of the blade. It is possible to resort to some simple
maintenance procedures to significantly reduce this phenomenon. For example, a band saw with a bad
adjustment of the wheel scrapers causes a slow worsening from the maximum level of cutting noise to the
minimum level of loadless noise.
A Careful adjustment of the wheel scrapers and of the sawdust deflectors.
B Maintenance of the dust extraction systems in observance of the planning parameters.
C Maintenance of the blade lubrication systems in the feeders and rip saws.
D Precise alignment of the blade.
E Care for the blades under tension.
A.7 DUST EXTRACTION
Routine checks and maintenance of the extraction system.Routine checks and maintenance of the seals
of the pulley guards.
A.8 TRAINING THE OPERATORS
All the band saw operators must receive adequate training relative to:
A machine operating principles, correct use and adjustment of the tilting table and of the guide, use of jigs, locks
and templates;
B choice of the most suitable blade for the work, setting the teeth, tensioning and aligning the blade;
C safe movement of the piece during cutting, position of hands with respect to the blade and safe stacking of
pieces before and after cutting;
D correct adjustment of the top guide and of the guard.
A.9 TOOLS
A.9.1 CHOICE
With table band saws, the width of the blade must be chosen according to the cutting radius, the pitch of the
tooth according to the thickness of the material and the shape of the teeth according to the type of material
sawn.
A.9.2 HANDLING
It is necessary to pay great attention not to damage the blade. When not used, blades not under tension must
be wound in a spiral (see figure A-9) and kept in this conformation in a dry and safe place. Before use they
must be checked for the presence of damaged or cracked teeth.
To prevent the formation of cracks, tensioned blades must be kept as shown in fig. A-10.
To change a band saw blade of a certain length, at least two operators are needed.
The operators must wear special gloves (or other suitable clothing) while handling the blades.
Fig. A-9 Winding blades
Fig. A-10 Handling