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Care and maintenance
8
Care and maintenance
Regular and careful maintenance of the device is a precondition for a long service life, good working conditions
and maximum productivity of the plasma cutting system. Ensure that maintenance work is carried out regularly.
Warning! Danger in case of insufficient qualification of persons:
Insufficiently qualified persons cannot assess the risks to the user caused by improper repair
work on the cutting equipment and expose themselves and others to the risk of serious injury.
Have all maintenance work carried out only by persons qualified to do so.
Before carrying out any maintenance work, switch off the plasma cutting system and wait at
least 5 minutes until the unit has cooled down.
After care, maintenance and repair work, check that all covers and guards are properly refitted
to the plasma cutter. Damaged guards and unit parts must be repaired or replaced by the
customer service department.
8.1
Maintenance of the plasma torch
Excessive consumption of spare parts is caused by damp compressed air, by an incorrect start in full material or
by too high a cutting speed.
The electrode is replaced when a crater of 1 mm - 1.5 mm forms in the centre.
The nozzle is replaced if the central hole is damaged, widened or oval.
The diffuser is replaced when one of the ends carbonises.
The nozzle holder must be replaced if the insulation is worn.
8.2
Maintenance of the plasma cutter
The maintenance intervals are a recommendation by REHM GmbH u. Co. KG Schweitechnik for normal standard
requirements (e.g. single-shift operation, use in clean and dry environment). The exact intervals are determined
by your safety officer.
Task Interval
Cleaning the inside of the device
depending on operating conditions
Function test of the safety devices by operating personnel
Daily
Visual inspection of the plant, especially the torch hoses
Daily
Have connection cables checked by qualified personnel
Half-yearly
Have the complete plasma cutting device checked by qualified personnel.
Yearly
8.3
Cleaning the inside of the device
If the plasma cutting device is used in a dusty environment, the interior of the device must be cleaned at regular
intervals by blowing or vacuuming. The frequency of this cleaning depends on the respective operating conditions.
Only use clean, dry air or a vacuum cleaner to blow out the unit.
NOTE:
Always disconnect the device from the power supply before carrying out maintenance work or
replacing components of the plasma cutter.
If maintenance and repair work is carried out on this unit by persons who are not authorised to carry
out this work, then the warranty claim against the supplier expires.
