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-   -   Had my first flame-out today (https://www.rc-monster.com/forum/showthread.php?t=30790)

pinkpanda3310 12.23.2011 06:17 AM

Had my first flame-out today
 
Fried my mmm and even started the grass on fire:gasp: Thankfully it wasn't too bad as in it went out soon. It produced enough heat to desolder the battery input wires:surprised: So anyway, is there a quick and easy way to test if the motor is still good without opening it up? I have a multimeter if that helps.

coolhandcountry 12.23.2011 10:32 AM

I would see if turns freely first.
Then can check the ohms from there.

pinkpanda3310 12.23.2011 11:35 PM

The rotor spins freely and the resistance is equal on all combination of phases, so I would think the motor is still good. I thought I had a 1518 installed but turned out to be a 1520. Thanks Countryboy.

BrianG 12.24.2011 11:26 AM

What are you guys using to measure resistance of the coils? Given that the typical DC resistance of motor wires is in the milli-ohm range, a regular meter won't show the difference between a coil and a dead short. The only useful measurement a meter would give is to see if the coils are still connected, which it shouldn't be because it would take a heck of a lot of current to literally blow a coil.

pinkpanda3310 12.25.2011 09:25 AM

I must be doing something wrong then Brian:oops: I haven't really looked up on how to correctly use a multimeter, was trying to go by feel:whistle:

This is the reading I've been getting on any 2 motor wires
http://www.rc-monster.com/forum/pict...&pictureid=949


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