System Powered, No Gas Flows From The Torch - Cebora SOUND MIG 3840/T Pulse Service Manual

CEBORA S.p.A.

3.5.6 - System powered, no gas flows from the torch.

SOLENOID VALVE (227) TEST.
Solenoid valve (227) terminals = 24 Vdc with start button pressed, in MIG or TIG mode, or
with button (AQ) on control panel pressed (test gas).
♦ Check for the presence of gas at the intake fitting (BE) and make sure that the
pressure and flow rate in the intake line meet the specifications of the SOUND
MIG 3840/T Pulse.
♦ Make sure the gas lines in the wire feeder are not clogged.
♦ Replace the solenoid valve (227).
♦ Check the wiring between terminals 1 and 2 of connector J13 on motor control board (232)
and solenoid valve (227).
♦ Make sure that solenoid valve terminals (227) = 56 ohm. If 0 ohm (short-circuit), replace
solenoid valve (227) and motor control board (232). If >Mohm (winding broken), replace the
solenoid valve (227).
♦ Replace the motor control board (232).
3.302.191
Correct?
NO
YES
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15/02/05