Operation And Maintenance - Impax IM-MMA140 Instruction Manual

OPERATION & MAINTENANCE
The thicker the material being welded, the
greater the current required, therefore, the hotter
the machine will become and the quicker it will
cut out. When the windings reach performance
temperature the cut out switch will operate
illuminating the indicator lamp on the front panel
(Fig.13). After a few minutes the cut out switch
will reset and the welder will be ready for use.
Fig 13
Maintenance
Warning! Ensure the welder is disconnected
from the electrical mains power supply before
attempting any service or maintenance.
The welder must be kept clean and dry at all
times. Use a dry cloth to clean the welder.
Keep the electrodes clean and dry and ensure
all cables are in good condition.
Keep the louvre passages clean to avoid a build
up of dirt and oxides inside the machine, which
can reduce machine output.
Always try to avoid getting particles of metal
inside the machine since they could cause short
circuits.
Periodically clean the inside of the welder with
compressed air, ensuring you wear a mask
during the operation.
Important - Always disconnect from the
electrical supply before servicing or cleaning.
Caution: Water must never come into contact
with the welder.
Regularly check that all the fixing screws are
tight. They may vibrate loose over time.
If the supply cord requires replacing, the task
must be carried out by the manufacturer, the
manufacturer's agent, or an authorised service
centre to avoid a safety hazard.
Welding Mask Maintenance
Always maintain the welding mask in good
condition. If the clear glass protection lens
becomes badly pitted, sufficient to interfere with
vision, or cracked, have it replaced immediately.
NEVER use any dark filter lens other than that
provided by Impax, or one with the same
certified 'Optical class' (degree of protection).
The shield should always be cleaned with a
clean soft cloth after use, ensuring the lenses
are clean. Remove any dust that may have
accumulated and store it in a safe place where it
cannot be damaged.
NEVER use a shield that is not in perfect
condition.
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