Lincoln Electric IM767 specifications Overload Protection, Output Overload, Thermal Protection

B-7 OPERATION B-7

OVERLOAD PROTECTION

Output Overload

The WELDMARK 135 PLUS is equipped with a circuit breaker which protects the machine from potential damage from excessive output current. The circuit breaker button will extend out when tripped. The cir- cuit breaker must be manually reset.

Thermal Protection

The WELDMARK 135 PLUS duty cycle is exceeded a thermostat will shut off the output until the machine cools to a normal operating temperature. This is an automatic function and is self resetting.

Wire Feed Overload Protection

If the WELDMARK 135 PLUS has an automatic elec- tronic protection circuit to protect the wire feed motor. If excessive motor overload occurs (due to excessive feeding force, jammed drive rolls, or shorted motor leads) the circuit will shut down the wire feed motor and the welding power output.

The wire feed shut-down circuit will reset automatically when the gun trigger is released. However shut-down will reoccur if the overload situation is not corrected.

WELDMARK 135 PLUS