Maintenance And Troubleshooting - ASKAYNAK Plasma 105 ULTRA Manuel D'utilisation

Maintenance and Troubleshooting - 1

Periodical maintenance works should be performed periodically to enable plasma cutting
machine operate with high efficiency and safely. It is necessary that the users understand
maintenance methods, familiarized with the plasma cutting machine, perform on their own the
simple control and safety applications, pay attention to prolong the machine's service life by
minimizing fault rates. Detailed information on periodical maintenance are determined in the
following table.
Warning : Absolutely make sure that the connection between plasma cutting machine and
mains supply has been disconnected when performing maintenance work. Maintenance
work should be performed by authorized and expert people.
DAILY MAINTENANCE
Make sure that the cutting current adjustment knob of the front panel of the machine and the
On/Off switch on the rear panel are in place and good working order. If current adjustment
knob is not installed properly or if the on/off switch is loose and not working freely, contact to
an authorized service shop.
After turning on, check the machine for vibrations, whistling sounds and smoke etc. In case
of any problem, try to find the source; if the problem is stemming from the environment,
eliminate it and if the problem is stemming from the machine, do not intervene and contact to
an authorized service after disconnecting from the mains.
Check the proper operation of the thermal protection of the machine. To check this: Load
the machine at 100 A at %40 duty cycle. If the thermal protection does not activate within
approximately 7-9 minutes at this current value, something must be wrong with the thermal
protection. Contact the service in such a case. Otherwise, overheating may lead to a risk of
fire.
Check the short circuit protection. To check this: Touch the electrode to the work piece and
measure the current passing through the welding cable with clampmeter. The current should
drop to 40 A in a short time. If not contact your service.
Make sure that the cutting current is according to the setting value. In case of difference, re-
adjust as this may affect the normal cutting operation.
Make sure that the cooling fan is not faulty and rotates normally. If the fan does not cut in when
the machine gets really hot, check if the fan impeller is stuck. If the fan is defective, contact
your service.
Check is the cutting connections are loose and overheating. Incase of overheating or
looseness, tighten them or contact to your service.
Check the current cable for damages. If damaged, wrap the damaged section with an
appropriate insulator or replace the cable.
MONTHLY MAINTENANCE
Clean the dust accumulated in the plasma cutting machine in time using a dry air compressor.
If the machine is used in an environment which contains too much dust and fume,this
procedure should be performed twice a month. Be careful about the pressure value of the air
against damaging the smaller components.
Check the screws on the machine, loose ones must be tightened. If any screw is missing put
a new one. Replace the rusty screws.
QUARTER YEARLY MAINTENANCE
Check whether the actual cutting current is the same with the displaying value. You can
measure the current with clampmeter.
YEARLY MAINTENANCE
Contact to authorized service for yearly maintenance. Grounding continuity and insulations
test must be applied during yearly maintenance. Check if this tests has been done from the
yearly maintenance report.
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