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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/KWHE4PVEZ5MFNYC33T67CHT7V4XMZRHK/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "CAO-vtPOEu00MRTo0s9ED79-6UMRTKA2kmgX1WyRoM1-23rueJg@mail.gmail.com",
    "message_id_hash": "KWHE4PVEZ5MFNYC33T67CHT7V4XMZRHK",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/HPR7PWZQDNFDGKUPYEJH4NUWBFG6X5F2/?format=api",
    "sender": {
        "address": "kb5wia (a) amsat.org",
        "mailman_id": "a631ac9574fc43afb1d08bf5e7164c19",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/a631ac9574fc43afb1d08bf5e7164c19/emails/?format=api"
    },
    "sender_name": "David Palmer KB5WIA",
    "subject": "[amsat-bb] Re: G5500 az rotor repair",
    "date": "2012-03-04T19:33:39Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/7D2HNC4JIQBUZGO25OE7QPBDDILNHUCY/?format=api",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Hi Ken,\n\nA couple of things to check.  The resistance of the motor should be same\nfor both directions, ie between red and black should be around 3.5 ohms as\nwell as green and black.  Total series resistance of motor should be around\n7 ohms.  When mine stalled, the motor overheated and one winding was only 1\nohm, definitely a short.\n\nOther thing to check is that you put the brake back together in right\norientations.  Theres a circular spring inside a nylon cylinder that holds\nthe metal driver from motor and the white nylon gear with tab.  If the\nprongs on the spring are at 10 and 2 oclock, the white tab from gear should\ngo at 12 oclock and the motor driver wings at 9 and 3 oclock.  Thats how it\nis in mine, if orientation like that motor drives gear freely, and gear\ncannot drive motor.\n\nI sent my motor down to LA a week and a half ago for rewinding - so far\nseems USPS has yet to deliver it, ugh.  Running with elevation control only\nright now, with antennas fixed at 270 degrees.  Flipping backwards gives me\na few degrees at 90 azimuth as well, but beamwidth of the yagis isnt great\nso not best solution!  Yaesu parts says maybe 4-6 weeks for motors to come\nfrom Japan.\n\n73!  Dave KB5WIA\n On Mar 4, 2012 9:00 AM, \"Ken Swaggart\" <[email protected]> wrote:\n\n> After a 3 month wait I finally received the replacement for a damaged gear\n> in my G5500 azimuth rotor. Replaced the damaged gear, and the gear assembly\n> smoothly turns both directions. However, when using the motor the rotor\n> rotates to left at normal speed but right at about half speed. It also\n> occasionally momentarily stalls when turning right.\n>\n> If the motor is damaged wouldn't it affect both directions?  There is a\n> slight aroma of a electrical wiring left over from the failure three months\n> ago.  Suspect I need a motor replacement, but would like to confirm this\n> with the group.  Seems strange only one direction would be affected since\n> I'd think the same windings are used in both directions.  A few years ago\n> when the motor failed it didn't move in any direction.\n>\n> Incidentally, the gear that failed was the plastic gear that the motor\n> drives (Yaesu part number PE-8601-010-A). The coax caught on a exposed bolt.\n>\n> Tnx,\n> Ken, W7KKE\n>\n>\n>\n>\n> ______________________________**_________________\n> Sent via [email protected]. Opinions expressed are those of the author.\n> Not an AMSAT-NA member? Join now to support the amateur satellite program!\n> Subscription settings: http://amsat.org/mailman/**listinfo/amsat-bb<http://amsat.org/mailman/listinfo/amsat-bb>\n>\n",
    "attachments": []
}