Lincoln Electric INVERTEC IM10051 - Manual (Page 29)

D-1 MAINTENANCE D-1
INVERTEC® V311-T AC/DC TIG
SAFETY PRECAUTIONS
ELECTRIC SHOCK can kill.
• Have an electrician install and ser-
vice this equipment.
• Turn the input power off at the
fuse box, disconnect or unplug
supply lines and allow machine to
sit for five minutes minimum to
allow the power capacitors to dis-
charge before working inside this
equipment.
• Do not touch electrically hot parts.
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INPUT FILTER CAPACITOR
DISCHARGE PROCEDURE
The machine has internal capacitors which are
charged to a high voltage during power-on condi-
tions. This voltage is dangerous and must be dis-
charged before the machine can be serviced.
Discharging is done automatically by the machine
each time the power is switched off. However, you
must allow the machine to sit for at least 5 min-
utes to allow time for the process to take place.
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ROUTINE MAINTENANCE
Prevent metal powder from accumulating near the
aeration fins and over them.
Carry out the following periodic controls on the power
source:
• Clean the power source inside by means of low-
pressure compressed air.
• Check the electric connections and all the connec-
tion cables.
• Always use gloves in compliance with the safety
standards.
WARNING
WARNING