Thomas SAR 460 SA G DIGIT, Use And Maintenance Manual

Page: 40 / 42

40
SAR 460 SA G
FAULT PROBABLE CAUSE REMEDY
Irregular work of the blade due to the lack
of teeth can cause deflection in the cut;
check blade and if necessary replace it.
Check level of liquid in the tank. Increase
the flow of lubricating refrigerant, check-
ing that the hole and the liquid outlet pipe
are not blocked.
Check the emulsion percentage.
The support and guide flange of the band
are so worn out that they cannot ensure
the alignment of the blade, causing faulty
cutting; blade rolling and drawing tracks
can have become tapered. Replace them.
Clean with compressed air.
Check that on the blade tightening pres-
sure gauge reads 22 BAR, the ideal tight-
ening value.
Decrease advance, exerting less cutting
pressure. Adjust the braking device if
mounted on the machine.
Use a superior quality blade.
Replace it.
Blade used probably has too large teeth;
use one with more teeth (see Chapter
“Material classification and blade se-
lection” in the
Selecting blade and Blade
Types sections).
Approach head as near as possible to
material to be cut so that only the blade
section employed in the cut is free, this
will prevent deflections that would exces-
sively stress the blade.
Check that on the blade tightening pres-
sure gauge reads 22 BAR, the ideal tight-
ening value.
Check level of liquid in the tank. Increase
the flow of lubricating refrigerant, check-
ing that the hole and the liquid outlet pipe
are not blocked.
Check the emulsion percentage.
Dirt and/or chips between blade and gui-
de bearings. Replace them.
Replace them.
Broken teeth
Insufficient lubricating refrigerant or
wrong emulsion
Worn out flywheels
Flywheel housing full of chips
Blade too slack
Too fast advance
Poor quality blade
Worn out blade or with chipped and/
or broken teeth
Wrong tooth pitch
Blade guide head too far from mate-
rial to be cut
Blade too slack
Insufficient lubricating refrigerant or
wrong emulsion
Chipped bearings
Worn out or damaged pads
FAULTY CUT
STREAKED CUTTING SURFACE
NOISE ON GUIDE BLOCKS