MAINTENANCE
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
To avoid receiving a high frequency shock, keep the TIG torch
and cables in good condition.
ROUTINE AND PERIODIC MAINTENANCE
In order to guarantee the arc welding machine works efficiently
and safely, it must be maintained regularly. Refer to the mainte-
nance items in the following table.
OVERLOAD PROTECTION
THERMOSTATIC PROTECTION
This welder has thermostatic protection from excessive duty cycles,
overloads, loss of cooling, and excessive ambient temperatures.
When the welder is subjected to an overload, or inadequate cooling,
the thermostats will open. This condition will be indicated by the
illumination or flashing while welding of the yellow Thermal Shutdown
Light on the front panel. The fan will continue to run to cool the
power source. Postflow occurs when TIG welding is shut down, but no
welding is possible until the machine is allowed to cool and the yellow
Thermal Shutdown Light goes out.
NO ARC PROTECTION
The machine outputs will be shutdown, if the trigger is closed without
welding for 3 seconds.
SQUARE WAVE
®
TIG 200
D-1
MAINTENANCE
WARNING
WARNING
MAINTENANCE ITEMS
DAILY EXAMINATION
• 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.
MONTHLY EXAMINATION
Use a gentle dry compressed air to clean the inside of arc welding machine. Especially for
removing dust from heat sinks, and PCB components.
Содержание Square Wave TIG 200
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Страница 76: ...P 896 C jpg Case Front Assembly 6 Square Wave TIG 200 12475 Printed 10 01 2015 at 09 18 46 Produced by Enigma ...
Страница 81: ...P 896 E jpg Wraparound Assembly Square Wave TIG 200 12475 11 Printed 10 01 2015 at 09 18 46 Produced by Enigma ...