Ronch Ronch Weld 200MP, User Manual, Page: 22 / 25

Quarter-
yearly
examinatio
n
Whether the actual current accords with the displaying value. If they did not accord,
they should be regulated. The actual current value can be measured by the adjusted
plier-type ampere meter.
Yearly
examinatio
n Measure the insulating impedance among the main circuit, PCB and case, if it below
1MΩ, insulation is thought to be damaged and need to change , and need to change
or strengthen insulation.
• 5.2. Troubleshooting
Before arc welding machines are dispatched from the factory, they have already been
debugged accurately. So forbid anyone who is not authorized by our company to do any
change to the equipment!
Maintenance course must be operated carefully. If any wire becomes flexible or is
misplaced, it maybe potential danger to user!
Only professional maintenance personal who is authorized by our company could
overhaul the machine!
Guarantee to shut off the arc welding machine’s power before turn on the outline of the
equipment!
If there is any problem and has no the authorized professional maintenance personal of
our company, please contact our local agent or the branch company!
If there are some simple troubles of MIG SERIES welding machine, you can consult the
following
chart:
NO. Troubles Reasons Solution
1
Close the breaker, but the
power light isn’t on
Breaker damaged Change it
Fuse damaged Change it
Power damaged Change it
2
After welding machine is
over-heat, the fan doesn’t
work
Fan damaged Change it
The cable is loosen Screw the cable tightly
3
Press the
gun switch,
no output
shielded
gas
No output
gas when
test gas
No gas in the gas cylinder Change it
Gas pipe leaks gas Change it
Electromagnetic valve
damaged
Change it
Output gas
when test
gas
Control switch damaged Repair the switch
Control circuit damaged Check the board
4 Motor damaged Check and change it