Maintenance - ESAB powercut 700 PT-39 Instruction Manual

US
Speed
Typically, manual plasma cutting speeds are limited by the sever speed. This
indicates the maximum speed you will be able to move the torch along the cut while
still penetrating the work piece. However, for applications that require a cleaner cut,
it may be important to cut closer to the quality speed.
If the cut is made too quickly, significant quantities of molten metal can form dross on
the underside of the cut. While most slag formed from carbon steel will easily chip
off, it can be a nuisance. Quality speeds are selected to keep dross formation to a
minimum.
On page 72 data show the maximum cutting speeds possible for the PowerCut 700
at 15 - 50A. Quality cut speed recommendations are also listed for steel.
Note that when the torch is used at its limits, the quality of the cut suffers.
7

MAINTENANCE

Regular maintenance is important to get the optimal performance and lifetime.
Only those persons who have appropriate electrical knowledge (authorized
personnel) may remove the safety plates.
ENSURE THAT THE MAINS VOLTAGE SUPPLY TO THE MACHINE HAS BEEN
DISCONNECTED EXTERNALLY. SWITCH OFF THE SWITCH AT THE WALL
SOCKET BEFORE INSPECTING OR WORKING IN THE POWER SOURCE.
WATER OR OIL CAN COLLECT IN THE COMPRESSED AIR LINES. ALWAYS DIRECT
THE FIRST STREAM OF AIR AWAY FROM THE EQUIPMENT, TO PREVENT
DAMAGE.
Supplier warranty is void if customer attempts any work on product during the
warranty period.
If the equipment does not work correctly, stop work immediately and determine the
cause of the problem. Maintenance work may only be carried out by persons with
the applicable knowledge. Electrical work may only be carried out by authorized
electricians. Never allow persons other than those with the applicable knowledge to
check, clean or repair the equipment. Only use ESAB Genuine spare parts.
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© ESAB AB 2012