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7. DAILY MAINTENANCE & EXAMINATION
Regular maintenance and examination can guarantee the machine in good work condition. When
the machine is not in use for a long time, it should be regularly and periodically (once two months)
examined in the state of electrification in order to ensure the machine dry and avoid the components
disabled or the parameters changed. The outer connections can be checked only after the power
supply is disconnected. Before inner circuitry and connections are checked, disconnect the power
supply and wait for 5 minutes for fully discharging from capacitor in machine in order to ensure
safety.
list 6: reference for examination
Item of circuitry examination
Regular examination for 1 or 2 months
1. Function of power switch
2. If the running of cooling fun is in normal
condition
3. If exists unwonted libration, noise or
smell
4. If the tie-in of welding cable is singularly
hot
5. If welding cable is singularly hot
6. If the cable is hurt
7. If all tie-ins of strikes are loose
1. Eliminate dirtiness
eliminate dirtiness by compressed air,
especially the dirtiness from reactor,
transformer, power transistor and PCB.
2. Examine the connections of electrocircuit:
Check the connections of input and output
sides, outer connecting lines, and screw
down the loose parts and eliminate rust to
guarantee the connections in good
condition.
3. Check if the grounding line is in good
condition.
4. Check the discharging clearance and make
it clean.
Summary of Contents for TIG200P
Page 17: ...16 9 CIRCUIT DIAGRAM...
