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Thread: Fuse Holder Problem

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  1. #1
    Join Date
    Oct 2000
    Location
    Chicago
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    5,953

    Fuse Holder Problem

    ShoeBox Owners,

    One of our test units and two other units in the field have been blowing fuses without any other issues. We have tracked the problem back to the spade connector on the fuse holder. The spade is wavy to promote contact but when it heats up, it wants to go back to flat and looses its connection with the connector on the wire.

    When your running at above 3000 psi, turn off the compressor, unplug, then remove the cover and check to see if the connectors on the fuse holder are hot. If so let me know here. For good measure, if you have a soldering iron you can solder these connections and have no further issues.

    Thanks,

    Tom

  2. #2
    My little Infrared thermometer showed 169d f at 3200psi last night when I shot it down.

  3. #3
    Join Date
    Oct 2000
    Location
    Chicago
    Posts
    5,953
    That sounds pretty hot. Was it hotter than the other connections? If so then you should solder the fuse connections.

    thanks for the info

    Tom

  4. #4
    Join Date
    Feb 2005
    Location
    #1 Buck Adams fan
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    7,839
    The whole left side of my fuse holder melted and the wire to the switch burned up. I replaced everything and it seems like it is ok now. The contact on the holder has many little spots on it, possibly from arcing. I will see if I can get a temp reading on it now.

    "I'm not happy unless you're not happy"

  5. #5
    Join Date
    Jun 2010
    Location
    In the Box shop
    Posts
    41
    Quote Originally Posted by BigEvil
    The whole left side of my fuse holder melted and the wire to the switch burned up. I replaced everything and it seems like it is ok now. The contact on the holder has many little spots on it, possibly from arcing. I will see if I can get a temp reading on it now.
    What input pressure were you running when it failed?

  6. #6
    Join Date
    Feb 2005
    Location
    #1 Buck Adams fan
    Posts
    7,839
    Quote Originally Posted by ShoeBox Tech
    What input pressure were you running when it failed?
    Set it @ 90, and it was creeping up to 125... which it was at when it blew 2 fuses, but it was right on 90 when the fuse holder goopified

  7. #7
    Quote Originally Posted by AGD
    That sounds pretty hot. Was it hotter than the other connections? If so then you should solder the fuse connections.

    thanks for the info

    Tom
    10-4
    The left side seems hotter than the right. Itís just a cheap point and shoot thermometer so I couldnít tell.

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