Hammond M-103 quirks

[Guest]

HI all...nice to be here. I just picked up an M-103 in great condition. All original paperwork etc. It sounds beautiful but of course there is that grindy sound that doesn't go away. The service sheet shows that it was oiled in 1962, 69, and 1980...i'm thinking it had to be oiled in between there at some point or it would have siezed up long ago but who knows. So I have some oil on the way...my question is this:Should I fill the cups and wait a day or 2? OR, because it has been starved for so long is there anyplace I should directly apply oil e.g. visible bearings in the motors etc. The only other quirk is the "G" pedal is the same as low "C" that starts the pedal board...you start at C and it goes up in tone like it should but then back to C when you press the G pedal...wierd. Any ideas? THANKS

[Hammond101]

Re: Hammond M-103 quirks



Welcome to the board! If you are getting a dry bearing sound from your tonewheel generator do not run the organ until you oil it and the oil has time to work its way down the threads to the bushings and the noise goes away. If you seize one bushing (bronze oilite) running it dry you are kinda, well, hosed!</P>


When your oil arrives, remove the generator cover and fill the right two cups directly on the TWG. Do this about three times letting the oil drain into the pan underneath between each filling. The pan on the run motor should only be filled to moisten the sponge, do not fill it up. You can fill a pinpoint oiler with your Hammond oil and lube each bushing on the TWG individually to speed up the process. It will not hurt a bit to lube each visable bushing (motors, TWG etc.) . Lubing the start motor shaft and bushing as well as the clutch the motor engages on the generator shaft is a must.</P>


You can spin the flywheel between the run motor daily by hand to help work the oil into the TWG. Spin the top of the flywheel towards the front of the console. Keeping the organ warm and indoors during this process will speed things up.</P>


You may have a broken wire at the TWG that has migrated to another contact causing your G to play a C. Are the notes above the G correct? I'm not sure what is going on there.</P>


H101</P>

[Guest]

Re: Hammond M-103 quirks



Wow, thank you so much for that info...I should print that out and put it with the manual! You are aptly named. I'll report on my results.</P>
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[Hammond101]

Re: Hammond M-103 quirks



The name, H101came from the fact I knew little to nothing about Hammond Organs when I joined the board 4-5 years ago. I had owned anM3 for a while and got it running properly.I figured this was my organ class, this place has helped me quite a bit. I'm working on a T500 right now and finding out how much I don't know about the solid state amped spinets. </P>


Best of luck with the M100. I have owned an M111 and an M101. They are my favorite Hammond spinets.</P>


H101</P>

[Guest]

Re: Hammond M-103 quirks



Hammond101...I oiled the organ the way you described. Let it sit for 3 days turning the flywheel from time to time. Started it up and it purred like a kitten for about 20 seconds...just as I put my hands in the air in triumph the squealing started up again. Every effort since then results in squealing as soon as the main shaft is up to speed. So I oiled it again and i'm going to let it sit for a solid week. In your instructions you mentiond oiling each bearing on the TWG individually...how the heck do you do that when they mostly lie beneath the capacitor bank?? Am I missing something? The only other weirdness is that all the G's on both manuals warble and kind of whistle in a very strange way...could the bearing/bushing that's squealing be effectin all the G's? OK, enough questions. THANKS</P>
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[Brendon Wright]

Re: Hammond M-103 quirks



G'day VCD!
</p>


I'm not sure how the individual oiling is done on an M.... the usual story is a syringe or something with a long spout...</p>

However, the G note warbling is a sign of a wheel not turning happily... find that baby and douse her with oil!</p>

In my T 500 I can lie under the TG and get a face full of oil as I squirt up at the thing with oil, but I think yours is on a shelf, isn't it?</p>

Cheers,</p>

-Brendoon
</p>

[Guest]

Re: Hammond M-103 quirks

YEP, I think that's it. Another oiling and I let it sit for 3 days untouched...turned it on, perfection!! played it for about half an hour, all the g's function as they should, even the pedal g...at the half hour mark the screechy,grindy sound came back and the g's went screwy so it's definitely a wheel problem. One more dose of oil and I'll let it sit for a whole week...and if I can locate the exact wheel in question i'll dowse that sucker too. When it's functioning 100% it sure is a beautiful thing. THANKS!

[Brendon Wright]

Re: Hammond M-103 quirks



You must be feeling mighty impatient right about now!!</p>

Especially after having a taste of it running perfectly....</p>

[Hammond101]

Re: Hammond M-103 quirks



If you download the service manual for the M100 you can locate the Tonewheel that is causing you the problems by tone number. What I have done in the past is get a pinpoint oiler from a good hardware store and fill it with Hammond oil. The longer the needle on it the better. If you unhook the springs the Generator is hanging by you can prop up the TWG and access the bushings from underneath. I have 2x4 blocks cut just for this purpose, holding up the TWG. Tilt it high in the rear for best access. Doall those bushingswhile you are in there.</P>


H101</P>