Cleaning and inspection schedule for preventive maintenance

The cleaning and inspection schedule for plasma cutting systems shows the intervals of preventive maintenance tasks.

Usually, operators can do the cleaning and inspection tasks for the one-day and one-week intervals. Qualified personnel must do the cleaning and inspection tasks for the one-month, six-month, and one-year intervals.

Table 1. Example checklist of inspection, preventive maintenance, and cleaning tasks
Maintenance task Day Week Month 6 Months
Do a test of the inlet pressures X
Examine the gas regulators X
Examine the shield water regulator (if applicable) X
Examine the air filter X
Examine the connections between system components X
Examine the coolant level and condition X
Examine the water tube and torch X
Examine the consumable parts X
Examine the torch receptacle X
Examine the torch lead X
Do a gas leak test X
Do the weekly coolant check (coolant flow measurements) X
Clean the internal surfaces of the system components X
Examine the contactors X
Examine the relays X
Examine the gas line connections for leaks X
Examine the ground connections X
Examine the table-to-workpiece connection X
Do coolant system maintenance X