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So I fired up my Miller Syncrowave 180 SD today for the first time in at least several months, and was disappointed to find that for the first time in the decade-plus that I've owned it, it doesn't work. Specifically, there's no argon flow -- although I can strike an arc, and it seems fine otherwise.The cylinder pressure is about 1600 psi. I closed the cylinder valve, disconnected the feed line from the rear of the welder, and then re-opened the cylinder's valve, and gas is delivered through that hose. The regulator gauge reads the expected value. I disconnected the torch hose from the front panel, and confirmed there's no gas exiting that port when the pedal is depressed. ( And for kicks, I also blew compressed air through the torch, and confirmed there's no obstruction in the torch hose. ) So the problem is within the Syncrowave. I have not yet opened up the machine, because it's a pain to do so where I have it installed in my shop. That's next, but first I have a question. When I depress the pedal, I do hear a normal hissing sound from the vicinity of the gas-valve inside the welder. So that would seem to mean that the gas-valve is functional. Assuming that that is the case, what else can be the problem? What else can I test, once I have access to the internals? I searched for possibilities, but all of the cases I found involved gas-valves not operating for various reasons, and I don't see how that can be the situation here.Serial #: LC458879 ( early 2003 model )Thanks in advance for any help.__David Hillman
Reply:
Originally Posted by David Hillman
So I fired up my Miller Syncrowave 180 SD today for the first time in at least several months, and was disappointed to find that for the first time in the decade-plus that I've owned it, it doesn't work. Specifically, there's no argon flow -- although I can strike an arc, and it seems fine otherwise.The cylinder pressure is about 1600 psi. I closed the cylinder valve, disconnected the feed line from the rear of the welder, and then re-opened the cylinder's valve, and gas is delivered through that hose. The regulator gauge reads the expected value. I disconnected the torch hose from the front panel, and confirmed there's no gas exiting that port when the pedal is depressed. ( And for kicks, I also blew compressed air through the torch, and confirmed there's no obstruction in the torch hose. ) So the problem is within the Syncrowave. I have not yet opened up the machine, because it's a pain to do so where I have it installed in my shop. That's next, but first I have a question. When I depress the pedal, I do hear a normal hissing sound from the vicinity of the gas-valve inside the welder. So that would seem to mean that the gas-valve is functional. Assuming that that is the case, what else can be the problem? What else can I test, once I have access to the internals? I searched for possibilities, but all of the cases I found involved gas-valves not operating for various reasons, and I don't see how that can be the situation here.Serial #: LC458879 ( early 2003 model )Thanks in advance for any help.
Reply:
Originally Posted by Oldiron2
As you must know, the gas comes into the machine via a hose, goes to the solenoid, and from there via another hose to the connection for the torch. If you hear hissing inside the machine near the solenoid and if it's only when the torch is activated, you probably have a leaking hose/broken connection just beyond the solenoid.
Reply:You should hear a click followed by hissing. Sounds like a broken hose near the solenoid, maybe a mouse got in there. You will definitely need to get in and look. I have almost the same year Machine, and have had no real problems with it.good luckAirco 250 ac/dc Heliwelder Square waveMiller Synchrowave 180 sdMiller Econo Twin HFLincoln 210 MPDayton 225 ac/dcVictor torchesSnap-On YA-212Lotos Cut60DPrimeweld 225 ac/dcPrimeweld mig180Miller AEAD-200 |
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发表于 2022-5-19 11:02:48