Routine Maintenance; Thermal Protection - Lincoln Electric INVERTEC V160 Service Manual

ROUTINE MAINTENANCE

1. Keep the welding area around the machine clean
and free of combustible materials. No debris
should be allowed to collect which could obstruct
air flow to the machine
2. Every 6 months the machine should be cleaned
with a low pressure and dry airstream. Keeping
the machine clean will result in cooler operation
and higher reliability.
3. Examine the sheet metal case for dents or
breakage. Repair the case as required. Keep the
case in good condition to insure that high voltage
parts are protected and correct spacing are
maintained. All external sheet metal screw must be
in place to ensure case strength and electrical
ground continuity.
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THERMAL PROTECTION

Thermal detection device protect the machine from
excessive operating temperatures.
temperatures may be caused by a lack of cooling air or
operating the machine beyond the duty cycle and
output rating. If excessive operating temperatures
should occur, the yellow LED will light and the
detection device will prevent output voltage or current.
These detection device are self-resetting
machine cools sufficiently. If the thermostat shutdown
was caused by excessive output or duty cycle and the
fan is operating normally, the power switch may be
left on and the reset should occur within a 15 minute
period. If the fan is not turning or the air intake louvers
were obstructed , then the power must be switched off
and the fan problem or air obstruction must be
corrected.
Excessive
once the
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