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  1. #21
    Super Member dfkrug's Avatar
    Join Date
    Feb 2004
    Posts
    5,728
    Location
    NorCal
    Tractor
    05 Kioti CK30HST w/ Prairie Dog backhoe

    Default Re: 7 pin connector

    Quote Originally Posted by Morning Wood View Post
    The 7 pin round with round connectors is a better plug than the 7 pin round rv style plug. Keeping everything cleaned off and good electrical connections is really all it takes though.
    I like those connectors with the round pins. I guess my 7-pin connector is "RV-style" with round center pin
    and other pins flat. A round steel brush would certainly be easier for cleaning.

    I have tried sealing my trailer-side plug, but it seems to trap the moisture inside. Maybe I will add some lube,
    as suggested.

  2. #22
    Veteran Member
    Join Date
    Nov 2005
    Posts
    2,367
    Location
    Liberty, Kentucky
    Tractor
    None at this time.

    Default Re: 7 pin connector

    Quote Originally Posted by joeu235 View Post
    I was pulling a 14,000# load. I was going down the steepest decline within 100 miles and my truck said "Trailer Disconnected". My first thought was "Why the F right now" Luckily my truck has an exhaust brake so I was able to maintain 25 miles an hour until I got to the bottom. I pulled over at a gas station and wiggled the connector around and it started working again. I searched on internet and found a connector that the wires are molded onto it instead of screwed onto the end. I think I'll replace the connector with one of these.

    I've started soldering every connection as well.

    18 wheeler trailers have to have a more reliable system than the POS on lighter duty trailers.
    Big trucks use connectors with all the pins round. They too eventually do have issues with wear. In the past, I have had to wrap a small bungee around the weather flap on the trailer and the plug to stop the lights from blinking on every bump. More so for operators that swap trailers, the constant plugging/unplugging keeps the contacts from building up crud.

    The recepticle end under a pickup or the like is in a pretty harsh environment. Moisture seems to collect but not drain too well. As mentioned, some kind of spray or dialectric can help. I have had less issues with a gooseneck plug up by the ball then with BP trailer plugs on the back end.

  3. #23
    Super Star Member two_bit_score's Avatar
    Join Date
    Dec 2008
    Posts
    10,380
    Location
    Texas - from the brush and pear to the piney woods
    Tractor
    John Deere 110 TLB

    Default Re: 7 pin connector

    Quote Originally Posted by JPRambo View Post
    Google "teminal connector cleaner" its a wire brush for inside the connections.
    Sure not cheap either.


    TBS

  4. #24
    Super Member crazyal's Avatar
    Join Date
    Dec 2003
    Posts
    7,046
    Location
    Northern Vermont
    Tractor
    Kubota, Case, Deere

    Default Re: 7 pin connector

    I wish someone would make one with stainless steel, not brass contacts. The salt up here kills the brass.
    Kubota L4240,Case 580K backhoe, Case 450 Dozer, Deere X500

  5. #25
    Veteran Member
    Join Date
    Jul 2003
    Posts
    1,871
    Location
    SW Indiana
    Tractor
    Ford 1920 4x4 (traded in on Kubota). Case 480F TLB w/4 in 1 bucket, 4x4. Gehl CTL60 tracked loader, Kubota L4330 GST

    Default Re: 7 pin connector

    Teachu2's .17 caliber bore brush solution was $2.49 at Rural King today.

  6. #26
    Super Star Member two_bit_score's Avatar
    Join Date
    Dec 2008
    Posts
    10,380
    Location
    Texas - from the brush and pear to the piney woods
    Tractor
    John Deere 110 TLB

    Default Re: 7 pin connector

    Quote Originally Posted by jmc View Post
    Teachu2's .17 caliber bore brush solution was $2.49 at Rural King today.
    Well I have one. But a dedicated pin plug cleaner brush would be handy.

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