Maintenance; Routine And Periodic Maintenance; Overload Protection; Thermostatic Protection - Lincoln Electric Square Wave TIG 200 Operator's Manual

SQUARE WAVE® TIG 200

MAINTENANCE

WARNING
ELECTRIC SHOCK CAN KILL.
For safety while maintaining the machine,
please shut off the supply power and wait for
5 minutes, until capacitor voltage drops to
safe voltage.
All service work should be conducted by an authorised
Lincoln Electric field service agent
WARNING
To avoid receiving a high frequency shock, keep the TIG torch
and cables in good condition.

ROUTINE AND PERIODIC MAINTENANCE

DAILY EXAMINATION
MONTHLY EXAMINATION

OVERLOAD PROTECTION

THERMOSTATIC PROTECTION

NO ARC PROTECTION
MAINTENANCE ITEMS
• Check for correct operation of the control knob, switches and buttons on the front of
the power source .
• If the switch is not operational, replace immediately.
• Check the function of the LED display. If it doesn't work, maintain or replace the
display PCB.
• Check to see if fan is operating normally. If the fan is not rotating and obstruction is
not present then replace the fan.
• Check the output terminals for overheating, if so change output terminals. Ensure
welding lead plugs are connected tightly.
• Check welding leads and power cord for damage. If damaged replace parts.
Use a gentle dry compressed air to clean the inside of arc welding machine. Especially for
removing dust from heat sinks, and PCB components.
D-1
MAINTENANCE