YF-22 A2
8
can be operated.
5.
If the machine will not be used long time, it should be put in its own packing box
and store in dry environment.
Check Fault
CUT 40
Faults
Resolvable Methods
1.
Switch indicator is on, fan is not working
and control knob is out of work.
1.
Over voltage protection is working. Close machine then
Open it again after several minutes.
2.
Switch indicator is lit and fan is working.
However, press control knob of torch, there
is no HF arc-striking sound and
electromagnetic valve is not working.
1.
Check if torch is open circuit.
2.
Check if control knob of torch is damaged.
3.
Part of assistant power of top board is damaged and there
is no DC 24V output.
3. Switch indicator is lit and fan is working.
However, press control knob of torch, there
is no HF arc striking sound and inter red
diode is lit.
1.
Check if MOS K1170 of top board is damaged (driver
mould is damaged).
2.
Rising transformer of bottom board is damaged.
3.
Control mould is damaged.
4.
Switch indicator is lit and fan and
electromagnetic valve are working.
However, there is no sound of HF
arc-striking and inter red diode is not lit.
There is some trouble in part of arc-striking, such as:
1.
It is too far between discharge tip or there is adhesion in
discharge tip.
2.
Primary coil of arc-striking transformer is damaged or
poor contact.
3.
Check if four times voltage rectifier diode is stricken.
4.
Check if HF electric capacity 102/10KV is leaking.
Relay is damaged.
5.
Other of machine is normal, but arc is not
be stricken when it is be operating.
1.
Input voltage is too low.
2.
Pressure of air compressor is too high or too low .
