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Hammond@zk3.dec.com Archives
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These are the archives from Mark Longo's original Hammond List, 1994-97
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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: Start motor fails to engage
At 11:38 PM 8/31/96 -0800, you wrote: >Hi all, > >I'm trying to help a little old lady get her M-3 working again. It's fine >except that the start motor fails to engage the tone generator gear. It >turns and moves toward the gear, but just barely fails to engage. If I >push it into the gear, it starts the organ just fine. > >My question: can the present motor be fixed, or is a new one required? >I've never encountered this problem before. > >Also, she persuaded me to cart away what I discovered to be a Hammond Type >F power amp with full tube complement of 2A3s and 56s. I checked it out >and powered it up with the rectfier out (I don't trust high voltage caps >quite that old, and I have no speaker coil load for it). I measured 520VAC >across one half of the power transformer, but only 340VAC across the other >side. (I can't measure the rated 1050VAC with my digital meter). I >suppose this means that the power transformer's high voltage winding is >screwed up somehow. The filament supplies were fine. > >The 2A3s measured around 78%, while the 56s and 5Z3 rectifier measured like new. > >Any ideas on what to do with this thing other than make it into a piece of >living room art? > >Regards, >David Anderson > > > >You just have to spray the sliding gear on the start motor shaft with some type of degreaser (I use just a TINY bit of contact cleaner) to free the gear so it slips left and right freely, then put a few drops of oil on the shaft and and the gear teeth and you should be in business. DDH
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