42
Dimensions of the solid section too large with
respect to the maximum admissible cutting
dimensions
Blade diameter incorrect and/or too large
Abide by the instructions.
Decrease the blade diameter, adapting it to the
dimensions of the part to be cut. The cutting part
of the blade must not be too large for the shape of
the part to be cut.
Ridges on the
cutting surface
Blade diameter incorrect and/or too large
Ineffective gripping of the part in the vice
Too fast advance
Blade teeth are worn
Insufficient lubricating refrigerant
Toothing does not unload shavings well
Decrease the blade diameter, adapting it to the
dimensions of the part to be cut. The cutting part
of the blade must not be too large for the shape of
the part to be cut.
Check the gripping of the part.
Decrease advance, exerting less cutting pressure.
Sharpen the blade.
Check the level of the liquid in the tank. Increase
the flow of lubricating refrigerant, checking that
the hole and the liquid outlet pipe are not blocked.
Choose a blade with a larger tooth pitch that al-
lows better unloading of shavings and that holds
more lubricating refrigerant.
Cuts off the
straight
Too fast advance
Ineffective gripping of the part in the vice
Blade head off the straight
Blade sides differently sharpened
Blade thinner than the commercial standard
Dirt in the gripping device
Decrease advance, exerting less cutting pressure.
Check the gripping of the part which may be mov-
ing sideways.
Adjust the head.
Choose blade quality carefully in every detail as
regards type and construction characteristics.
Carefully clean the laying and contact surfaces.
Blade sticks in
the cut
Too fast advance
Low cutting speed
Wrong tooth pitch
Sticky accumulation of material on the blade
Insufficient lubricating refrigerant
Decrease advance, exerting less cutting pressure.
Increase speed.
Choose a suitable blade (see chapter 9; “Material
classification and choice of blade”).
Check the blend of lubricating coolant and choose
a better quality blade.
Check the level of the liquid in the tank. Increase
the flow of lubricating refrigerant, checking that
the hole and the liquid outlet pipe are not blocked.
10.2 - Electrical components diagnosis
Fault Probable
cause
Remedy
The green
pilot light
“HL” does
not light up
Fused lamp
Power supply
Fuses “FU 1”
Short circuits
Emergency button “SB 1” on
Cycle reset or line button “SB 2”
Thermal probe built into the stator winding
has tripped due to motor overheating
Change it.
Check phases, cables, socket and plug.
Voltage must arrive upstream from the fuses.
Check for efficiency.
Identify and eliminate.
Ensure that it is off and that its contacts are unbro-
ken.
Check mechanical efficiency.
Check current continuity on the two wires in the
prone after letting the motor cool for about 10-15
minutes. If after this time there is no current conti-
nuity in the two wires, the motor must be changed
or rewound.
