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GET /hyperkitty/api/list/[email protected]/email/TPMZ7JITJ5Y5OAI5FSVRSKPJSLXZCC74/
{ "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/TPMZ7JITJ5Y5OAI5FSVRSKPJSLXZCC74/", "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/", "message_id": "[email protected]", "message_id_hash": "TPMZ7JITJ5Y5OAI5FSVRSKPJSLXZCC74", "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/3SYMGT2OOTQPTZGRLCIS3HHNSXMHUD66/", "sender": { "address": "paul (a) ukdx.org.uk", "mailman_id": null, "emails": null }, "sender_name": "Paul", "subject": "Re: [amsat-bb] Yaesu g5400B longevity in stroage", "date": "2018-07-04T07:53:54Z", "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/3SYMGT2OOTQPTZGRLCIS3HHNSXMHUD66/", "children": [ "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/N6JDEBVGRLHXIUYAEPOX66AWIZC45PIJ/" ], "votes": { "likes": 0, "dislikes": 0, "status": "neutral" }, "content": "Eric, having just brought a 5400 elevation rotator back into service I \nwould say you should do the following.\n\nOpen it up, add anti seize compound to all the nuts and screws.\nReplace both sets of ball bearings with stainless steel ones. I was \nadvised they are 5/16\" not 8MM and have had no issues with imperial \nsized ones, I chose to leave the bearing retainers in place.\nRegrease everything and wipe all the cog surfaces with grease, the one \non my position pot was badly corroded.\nJunk the eight cross head bolts that hold the casing together and \nreplace with stainless socket head bolts.\nUse a liquid gasket when you stick the two halves back together and \nconsider enlarging the drain hole in the case.\nThis may seem a lot of work for something that is effectively new but it \nwill save a lot more grief in the long run.\n\nThe azimuth rotators seem to fare a little better but again I would \nreplace any external bolts with stainless, ditto the bearings and \nregrease/anti seize everything else.\n\nIt's a convenient time to say thanks to everyone who offered advice and \ntips when I renovated mine. As I took some photos through the process I \ndecided to put them together in a small web page, hope it's OK to post \nit. http://www.ukdx.org.uk/tv/rotator.htm\n\n73\nPaul\n\n\nOn 03/07/2018 23:31, Eric Garner wrote:\n> I acquired a G5400 az/el rotator that looks to be in pristine condition,\n> apart from some rubber rot. I don't think it's ever been mounted outside in\n> the weather. Since this has been in storage for probably at least 20 years,\n> what should be done with it to put it into service? does it need to be\n> pulled apart and re-greased? can I just replace the rotted rubber parts and\n> call it good?\n> \n> \n> pictures here:\n> \n> http://www.pushingbubbles.com/radio-stuff/new-rotator/\n> \n> \n> thanks\n> \n> -Eric KI7LTT\n", "attachments": [] }