Functional Tests; Grid Switch On/Off Devices; Displays And Operating Controls; Gas Solenoid Valve - Fronius TransTig 170 Service Manual

Functional tests

Grid switch on/off Evidence of functioning is to be provided by means of measurement or visual inspection.
devices
Displays and Op- -
erating Controls -
Gas solenoid -
valve
-

Test weld

Carry out a test weld after the safety inspection.
40
Check the display for functionality
Functionality of the operating controls must be checked in accordance with the oper-
ating instructions.
Check that the gas solenoid valve is operating correctly by pressing the torch trigger
several times
To check the gas solenoid valve for leaks, including gas lines, the gas line to the gas
solenoid valve must be pressurized.
Shut off the gas feed to the gas cylinder and check pressure gauges for a possible
pressure drop over a period of 2 minutes. No noticeable pressure drop must be ob-
served on the pressure gauge