Syncrowave 350 maintenance/voltage problem
Close
Login to Your Account
Likes Likes:  0
Results 1 to 6 of 6
  1. #1
    Join Date
    May 2019
    Country
    CANADA
    State/Province
    Manitoba
    Posts
    42
    Post Thanks / Like
    Likes (Given)
    9
    Likes (Received)
    14

    Default Syncrowave 350 maintenance/voltage problem

    I've got a older sync 350 I picked up last summer that's been great. I put the welder into service immediately after acquiring it and really like it.

    When I start the machine at idle with the amperage knob turned over 20% the voltage sits at 64.5. Shouldn't this be at 0 when I'm not welding?

    Is there any maintenance that I should be doing to this machine? I was thinking about popping all the covers off and at least blowing the dust out. Would spraying anything with electrical contact cleaner with a lubricant or cleaning up any connections be beneficial? Are there any components inside that should be replaced due to age?

  2. #2
    Join Date
    Feb 2013
    Location
    Northern califorina, usa
    Posts
    215
    Post Thanks / Like
    Likes (Given)
    4
    Likes (Received)
    65

    Default

    If the remote contactor switch is set to panel then you will see open circuit voltage (OCV)on your meter.
    if the remote contactor switch is set on remote then you should only see voltage on your meter if the foot pedal or what ever remote control you are using is activated, ether way you will only see amperage on your meter when welding(under load)
    Other then a good blow out, with low pressure dry air is about all you need to do with a good working power source.
    Be sure to unplug the power source before blowing out and watch not to get carried away around the P.C. boards and capacitors.

  3. #3
    Join Date
    Mar 2009
    Country
    UNITED STATES
    State/Province
    California
    Posts
    5,231
    Post Thanks / Like
    Likes (Given)
    97
    Likes (Received)
    978

    Default

    One maintenance item is the points adjustment underneath a cover in the back.
    A coolant flush is something that has to be done every 6 - 12 months. Otherwise the plumbing inside will rust out. It's built in, no need to add your own rust.
    This happened in my cooler.

    dsc_0558.jpg

    I fixed it like this.

    dsc_0556.jpg

    Blowing out dust is good. Removing the panel(s) requires removing the sheet metal screws. You would think that they would use inserts instead to keep the holes from
    getting over-sized by repeated ins and outs. Reminds me when I asked service for 5 black sheet metal screws. They sent me 500.

  4. #4
    Join Date
    Feb 2013
    Location
    Northern califorina, usa
    Posts
    215
    Post Thanks / Like
    Likes (Given)
    4
    Likes (Received)
    65

    Default

    Quote Originally Posted by rons View Post
    One maintenance item is the points adjustment underneath a cover in the back.
    A coolant flush is something that has to be done every 6 - 12 months. Otherwise the plumbing inside will rust out. It's built in, no need to add your own rust.
    This happened in my cooler.

    dsc_0558.jpg

    I fixed it like this.

    dsc_0556.jpg

    Blowing out dust is good. Removing the panel(s) requires removing the sheet metal screws. You would think that they would use inserts instead to keep the holes from
    getting over-sized by repeated ins and outs. Reminds me when I asked service for 5 black sheet metal screws. They sent me 500.
    In contained GTAW coolant systems, Be sure and use coolant that is formulated for GTAW cooling systems, some people complain about the price but its well worth it. You should never see rust problems.

  5. #5
    Join Date
    Mar 2009
    Country
    UNITED STATES
    State/Province
    California
    Posts
    5,231
    Post Thanks / Like
    Likes (Given)
    97
    Likes (Received)
    978

    Default

    Quote Originally Posted by West-7 View Post
    When I start the machine at idle with the amperage knob turned over 20% the voltage sits at 64.5. Shouldn't this be at 0 when I'm not welding?
    My voltage display is "---" no matter what the amperage knob is set to.

  6. #6
    Join Date
    Feb 2013
    Location
    Northern califorina, usa
    Posts
    215
    Post Thanks / Like
    Likes (Given)
    4
    Likes (Received)
    65

    Default

    Quote Originally Posted by rons View Post
    My voltage display is "---" no matter what the amperage knob is set to.
    Assuming your talking about a syncrowave power source then you have a what is called a constant current power source.
    You should see open circuit voltage (OCV) on your meter, close to what the nomenclature tag on your power source states the OCV should be, remember that's open circuit ,NOT welding. Voltage should not change much with current(amperage)change when idle, not welding .
    Your voltage meter will not display anything if the power source is switched to remote contactor and what ever remote control you are using is not switched on, example foot pedal or torch mounted contactor/ current control not activated.


Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •