CEBORA S.p.A.
16
3.3.5
- In TIG mode, no gas flows from the torch.
SOLENOID VALVE (43) TEST.
Correct?
Terminals of solenoid valve (43) = approximately 30 Vac, in TIG mode with start button
pressed (the time the solenoid remains open also depends on the post-gas set).
YES
NO
♦
Check the wiring between solenoid valve (43) and terminals 1 and 2 of J9 on
control board (40).
♦
With power source off, make sure the resistance between the terminals of solenoid
valve (43) = approximately 26 ohm. If 0 ohm (short-circuit), replace solenoid
valve (43) and control board (40).
♦
See CONTROL BOARD (40) POWER SUPPLY TEST, par. 3.3.1 e START
SIGNAL TEST, par. 3.3.4.
♦
Replace control board (40).
♦
With power source off, make sure the resistance between the terminals of solenoid valve (43)
= approximately 26 ohm. If >Mohm (winding broken), replace solenoid valve (43).
♦
Check the presence of the gas at the intake fitting on the rear panel, and make sure the
pressure and throughput in the input line meet specifications.
♦
Make sure there are no obstructions in the gas lines of the power source.
♦
Replace solenoid valve (43).
3.302.221
15/01/07
Summary of Contents for TIG 250 AC-DC
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