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Arri S Governor Motor


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#1 Richard Ward

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Posted 12 April 2007 - 10:38 AM

I have a very unreliable governor motor that I would like to replace. I'm afraid that if I try to buy another on eBay, I may wind up with one that is as bad as the one I already own. Does anyone have a suggestion?

Thanks,

Richard
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#2 Tim Carroll

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Posted 12 April 2007 - 01:05 PM

I have a very unreliable governor motor that I would like to replace. I'm afraid that if I try to buy another on eBay, I may wind up with one that is as bad as the one I already own. Does anyone have a suggestion?

Thanks,

Richard


Richard,

Can you tell me a bit more about your governor motor? When you say "unreliable" can you be more specific, what does it do exactly? Have you been running it with an 8 volt battery? They were only designed to run on 8 volts, but unfortunately many folks will hook up a 12 volt battery to them, which fries them.

If you could give me a bit more information, I may be able to help,
-Tim
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#3 Richard Ward

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Posted 12 April 2007 - 02:37 PM

The batteries are Arri Model 7V04. They were recelled before my school got the camera package, so I can't swear that they are putting out the right voltage.

The variable-speed motor runs fine, but the governor motor runs a bit under 24 and takes an audible dive every so often. Du All looked at it awhile back and said they could do nothing.

I'll get our technician to check the voltage coming out of the battery.

Thanks,

Richard
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#4 Tim Carroll

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Posted 12 April 2007 - 02:51 PM

The batteries are Arri Model 7V04. They were recelled before my school got the camera package, so I can't swear that they are putting out the right voltage.

The variable-speed motor runs fine, but the governor motor runs a bit under 24 and takes an audible dive every so often. Du All looked at it awhile back and said they could do nothing.

I'll get our technician to check the voltage coming out of the battery.

Thanks,

Richard


The variable speed motor can handle the 12 volts much better than the governor controlled motor. Though they were both designed to run on 8 volts.

Without looking at the motor, it is really hard to tell you if it could be fixed or not. I've serviced those motors in the past, though not very often.

-Tim
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#5 kevin jackman

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Posted 13 April 2007 - 12:30 AM

The variable speed motor can handle the 12 volts much better than the governor controlled motor. Though they were both designed to run on 8 volts.

Without looking at the motor, it is really hard to tell you if it could be fixed or not. I've serviced those motors in the past, though not very often.

-Tim



apparently places that work on lecetric motors can generally fix them likeif its the winding they can rewind them. a motor is a motor. it doesnt need to be done by a cinema camera specialist for all motor problems. id suggest finding a tobin sync motor instead
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