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Chattering FMG.6 motor and Heden gears


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#1 Andy Stankovich

Andy Stankovich

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Posted 25 September 2012 - 09:29 AM

Can any one help me with a chattering FMG.6 motor? Its worked well for me over the last 5 years, but has started to chatter. I see in other posts these motors are now redundant. If I was to try to service it what would I be looking for that is causing the chattering?
Im in Australia and sending it away for service just isnt a option.
Also, where do I look for gears for my Heden m26t and vt motors?
Regards
Andy Stankovich
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#2 Anthony Graham

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Posted 25 September 2012 - 03:22 PM

Hi

After checking the cables and connectors and cleaning the connectors!

The main reason for this happening is the motor pot has deteriorated or got dirty with age.

Meaning that the motor controller is trying to chase a moving target, or one that doesn't follow the rules of a pot going in a smooth arc for it's values. For example 1-2-3-4-5 and so on instead it goes 1-2-3-2-5 so the controller tries to bounce around between 3 and 5 looking for where 4 should be (at least the pot equivalent anyway).

Try replacing the pot in the motor assuming 1 you can open your motor and 2 you can still get the pot in question (the original one for the sld-100 is discontinued).

If you can't get one and you are confident AND you understand you may actually kill the pot, try cleaning it with DeoxIT or Servisol super 10 fader and switch cleaner. I say may kill it as sometimes as the pot is that bad the tracks actually flake off when cleaned.

Another option is try contacting Spintec in Israel. As the designer and maker of the original FMG.6 started Spintec however I am not 100% sure if he still owns the company or even works there anymore. Even so they may be able to help with part numbers are may even carry some stock from when they made some motors for somebody who shall remain nameless! They may even still repair them if they are feeling nice!

Anyway the contacts are (sorry no email)

Phone +972 2 579 7999
Mobile +972 54 4907 107
Fax +972 2 579 1463

Address Motion Dynamix Ltd.
POB 150 Beit Nekofa
Israel 90830

Good Luck
Anthony

Edited by Anthony Graham, 25 September 2012 - 03:25 PM.

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#3 Andy Stankovich

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Posted 25 September 2012 - 03:48 PM

Hey, thanks for that advice. Im going to look at taking apart the motor today. I suppose the gears on the FMG are the thing i liked most. will see if i can modify them to work with my other motors.
regards Andy
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#4 Anthony Graham

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Posted 25 September 2012 - 04:16 PM

Oh forgot re the heden gears try Derrick Whitehouse I beleieve he had some heden bits floating around.

dw@whitehouseav.com

Just be carefull with the FMG.6 as you could kill it. DON'T grease anything unless you know what it is and does. As I know somebody who accidentally greased the clutch and made a motor with only minor problems driving stiff lenses into a useless item! As no amount of cleaning could fix it!

Like I said be carefull as fixing an FMG isn't easy.

Ant
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#5 Andy Stankovich

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Posted 26 September 2012 - 11:44 AM

Well, I screwed that repair up! Got damm thing apart but a grub screw holding the motor in place has walked off!
Surprisingly simple inside, now I have to just fing that grub screw.
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#6 Louis Puli SOC

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Posted 26 September 2012 - 05:36 PM

Hi Andy
If you need a motor to fill in the gap until you can repair your FMG please let me know ok .
Louis .Posted Image
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#7 Andy Stankovich

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Posted 27 September 2012 - 01:10 PM

Thanks Louis, But I think it may be fixed! I found the grub screw, cleaned and re assembled it to find it runs perfect.
Contact cleaner did the trick.

Thanks to everyones advice, Stanky.
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