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MAINTENANCE
D-2 D-2
DC-600
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ROUTINE AND PERIODIC
MAINTENANCE
1. Disconnect input AC power supply lines to the
machine before performing periodic maintenance,
tightening, cleaning, or replacing parts.
Perform the following daily:
1. Check that no combustible materials are in the
welding or cutting area or around the machine.
2. Remove any debris, dust, dirt, or materials that
could block the air flow to the machine for cooling.
3. Inspect the electrode cables for any slits or
punctures in the cable jacket, or any condition that
would affect the proper operation of the machine.
Perform Periodically:
Clean the inside of the machine with low pressure air
stream. Clean the following parts.
• Main transformer and choke.
• Electrode and work cable connections.
• SCR rectifier bridge and heat sink fins.
• Control board.
• Firing board.
• Fan Assembly.
NOTE: The fan motor has sealed bearings which
require no maintenance.
SAFETY PRECAUTIONS
ELECTRIC SHOCK CAN KILL.
Only qualified personnel should
perform this maintenance.
Turn the input power OFF at the dis-
connect switch or fuse box before
working on this equipment.
Do not touch electrically hot parts.