Lincoln Electric INVERTEC V145-S Service Manual page 11

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
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
ground continuity.
airstream. Keeping the
strength and electrical
THERMAL PROTECTION
Thermal detection device protect the machine from
excessive operating
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.
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temperatures. Excessive
once the