Maintenance - Prima PP 35 Manuel D'instructions

MAINTENANCE

Never access inside the machine (panel removal) or touch the torch (disassemblage) without
Any inspection performed under voltage inside the machine or inside the torch may cause
severe electric shocks caused by direct contact with parts under voltage.
TORCH
Periodically, according to its use or to cutting faults verify wear of the parts connected to plasma arc:
Nozzle Holder:
Unscrew manually from head of the torch. Clean throughly abd replace if damaged (burns, distortions or
cracks). Verify integrity of superior metal sector (actuator torch safety).
Nozzle:
Check wear of plasma arc hole and of inner and outer surfaces. If the hole is widened compared to its original
width or if it is damaged, replace nozzle. If surfaces are particularly oxidated clean them with extra fine abrasi-
ve paper.
Air Distribution Ring
Verify the are no burns or cracks or that airflow holes are not obstructed. If damaged, replace immediately.
Electrode
Replace electrode when crater settling on emitting surface is about 2mm.
WARNING!
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Before making any operation to the torch let it cool at least all along the "postgas" period.
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Except for particular cases it is advisable to replace electrode and nozzle AT THE SAME TIME.
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Respect assembly order of torch parts (reserved compared to disassemblage).
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Be carefull that distributing is assembled properly.
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Reassemble nozzle holder screwing tightly and manually.
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Never assemble nozzle hloder without having assembled electrode distributing ring and nozzle
beforehand.
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Timely and appropriate control procedures on torch parts are essential for safety and functionality of the cutting
system.
TORCH BODY, HANDLE AND CABLE
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These parts usually need no particular maintenance with the exception of a periodic inspection and
an accurate cleaning to be made WITHOUT THE USE OF SOLVENTS.
In case of damages to the insulation such as breaks, cracks and burns or even a loosening of
electric coonductors, the torch CANNOT BE USED FURTHER SINCE SAFETY CONDITIONS HAVE
NOT BEEN RESPECTED.
IN THIS CASE, REPAIRING (EXTRAORDINARY MAINTENANCE) CANNOT BE MADE ON SITE
BUT NEEDS TO BE DELEGATED TO A SERVICE CENTER TO MAKE SPECIAL REST TRIALS
AFTER REPAIRING HAS BEEN EXECUTED.
In order to keep the torch and the cable efficient it is necessary to follow these precautions:
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DO NOT touch torch and cable with warm or hot parts.
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DO NOT strain the cable.
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DO NOT move the cable on sharp edges or abrasive surfaces.
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gather the cable in regular coils if it is too long.
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DO NOT step on the cable.
COMPRESSED AIR FILTER
The filter condense may be drained manually.
Inspect the filter periodically; if the glass contains water, manual purge can be madepushing upward the
drain connector.
If the filter cartridge is dirty it has to be replaced in order to avoid excessive leaks.
Do not use solvents to clean the filter; use soapy water only.
CAUTION!
having disconnected power plug.
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