MAINTENANCE
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SAFETY PRECAUTIONS
WARNING
ELECTRIC SHOCK can kill.
• Only Qualified personnel should perform this maintenance.
•Turn the input power OFF at the disconnect switch or fuse box before working on this equipment.
•Do not touch electrically hot 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 punc- tures 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 a low pressure air stream. Clean the following parts. Refer to Figure
D.1.
• Transformer and output rectifier assembly.
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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. See
Figure D.1.
•Electrode and work cable connections.
•PC board connections..
•Intake and outlet louvers on the machine case.
•Any obvious accumulations of dirt within the machine.
•Fan Assembly.
NOTE: The fan motor has sealed bearings which require no maintenance.
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