(Form 3) Option of the welding wire with welding current
Diameter
of electrode (
㎜
)
Welding
current(A)
Diameter of
electrode(
㎜
)
Welding current(A)
2.0 30-60
4.0
120-180
2.5 50-100
5.0
180-250
3.2 80-120
6.0
250-400
Ⅶ
.
Routine Maintenance and Repair
Regular maintenance and inspection are done to ensure the machine to
work safely and efficiently. Check whether the power of the welding machine is
off before checking the external connectors. Check the internal wiring five
minutes after the power of the welding machine is turned off, so that the
capacitors of the machine are fully discharged to avoid electric shock accidents
and ensure the safety of the staff.
(Form 4) Reference Guide for Maintenance
Line maintenance items
A regular maintenance is done every one or two
months
1.The function of the power switch
2.Whether the cooling fan is rotating normally
3.Whether the abnormal vibration, noise or
smell exists
4.Whether the cable connector is overheated
5.Whether welded cable is abnormally hot
6.Whether a wire connector is loose
1.Remove dirt:
Compressed air is used to remove dirt, in particular
the dirt on inductor, transformers, power transistors
and printed circuit boards.
2.Maintenance of the circuit connectors
Check whether the input terminal, the output
connector, the external connections are loose or
rusty. Tighten the loose places and remove the rust
to ensure good contact
3. Check whether the grounding line is well
.
Troubleshooting
Troubleshooting workers can check first and then make maintenance according to
orm 5. if the faults can not be cleared please contact with the distributor or the
producer.
Note:
1. Before checking the inner circuit of machine, make sure shut off the
three-phase power of welding machine to guard against electric shock
because the inner circuit can produce high voltage.
2. Before the machine leaves the factory, the control circuit has been connected
precisely. When connecting, do not overexert, do not change the position of
adjustable device on the circuit board at random to avoid accident.
