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07-23-2011, 03:42 PM | #1 |
RCC Addict Join Date: Dec 2009 Location: Rock Bouncin' with the Patented Technique
Posts: 1,374
| Brand new LRP Brushless motor locked up?
I've put a half of a pack in this Brand New LRP 10.5t Brushless motor and its locked up? Is there anyway to fix it? I called LRP and they werent in business hours. Im just looking to figure out how to fix this motor. Its screaching, and it just moves about a quarter of turn and makes a horrible sound and thats all it will move? Im pretty frustrated with this thing.
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07-23-2011, 06:57 PM | #2 |
Pebble Pounder Join Date: May 2009 Location: Northern Virginia, USA
Posts: 128
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Double check the sensor cable is connected properly.
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07-24-2011, 12:25 AM | #3 | |
Rock Crawler Join Date: Apr 2010 Location: Kelowna, B.C., Canada
Posts: 529
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07-24-2011, 06:52 AM | #4 | |
I wanna be Dave Join Date: Nov 2010 Location: 07456 N. NJ USofA
Posts: 8,314
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Just so you know, it is bad for BL motors to run with no load and full power, they tend to come apart internally. | |
07-24-2011, 11:50 AM | #5 |
RCC Addict Join Date: Dec 2009 Location: Rock Bouncin' with the Patented Technique
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Im new to brushless motors this was my very first. What exactly is the rotor? I took The top off and it was like a little computer in there or something and I couldn't figure out how to get it off? Before it took a dump it was "jumpy" and wouldn't run wide open and you could hold it for a little while and it would kick in full speed and then stop again and continue to be slow and jumpy? |
07-24-2011, 12:09 PM | #6 |
I wanna be Dave Join Date: Nov 2010 Location: 07456 N. NJ USofA
Posts: 8,314
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Did you calibrate the ESC to the RX? The "rotor" is the spinning part inside the motor that has the shaft the pinion gear is attached to. |
07-24-2011, 12:53 PM | #7 |
RCC Addict Join Date: Dec 2009 Location: Rock Bouncin' with the Patented Technique
Posts: 1,374
| The ESC was already calibrated. Its a new side winder SV2. I just plugged it up to the castle link, and programmed it to brushless, hooked the motor up and it ran great! For about 10 minutes. Then It went down the drain and acted like I said before.
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07-24-2011, 01:00 PM | #8 |
Defy Gravity Join Date: Nov 2009 Location: wells, mn
Posts: 2,326
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have you checked the bearings? may be shot. also, the sv2 is sensorless, going to cog.
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07-24-2011, 03:05 PM | #9 | |
I wanna be Dave Join Date: Nov 2010 Location: 07456 N. NJ USofA
Posts: 8,314
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Did you pull the rotor to see if it looks OK?? Did you pull the motor to see if the axle is locked or something in the pinion/spur mesh?? Just trying to help, not chastize. | |
07-25-2011, 08:52 PM | #10 | |
RCC Addict Join Date: Dec 2009 Location: Rock Bouncin' with the Patented Technique
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I havent pulled the rotor yet, because Im new to all this Electric motor stuff. How exactly do I pull it out? Will it just pull straight out once I take the top off? I pulled the motor, everything in my drivetrain is in good working condition. Axles, Transmission, everything. I just can't seem to figure this out. | |
07-27-2011, 04:02 AM | #11 |
Proverbial threadkiller Join Date: Feb 2011 Location: Central Wisconsin
Posts: 1,453
| "Seems to be"? Did you set your radio's throttle trim to center/zero? Did you set your radio's throttle EPAs to 100%? (if you have them) Did you go through and do the full throttle, reverse, neutral thing? (or whichever order your manual calls for) |
07-28-2011, 10:13 AM | #12 |
Quarry Creeper Join Date: May 2004 Location: SW of Chicago
Posts: 212
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You said it worked for 10 minutes and then died. You also mentioned you are new to the electric stuff. It may be too simple but are you sure the battery is charged? A low battery pack will many times allow steering to work but not the motor. The ESC may have the low voltage cutoff kicking in. What type of battery are you using and what is the ESC LVC set to? |
07-28-2011, 04:25 PM | #13 | |
RCC Addict Join Date: Dec 2009 Location: Rock Bouncin' with the Patented Technique
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07-28-2011, 05:44 PM | #14 |
I wanna be Dave Join Date: Feb 2004 Location: Columbia Gorge
Posts: 5,512
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I just looked at LRP's website, found the manuals to the 3 brushless motors(10.5) that they show, looked at the manuals and they either show an exploded view and/or give you step by step process to dis-assembly of motors. Have you looked at the manual yet? Here's the 3 I found.... http://www.lrp.cc/en/service/manuals/?srch=10.5 |
07-28-2011, 06:08 PM | #15 | |
RCC Addict Join Date: Dec 2009 Location: Rock Bouncin' with the Patented Technique
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I looked at the manual it came with and it has nothing in it about disassembly of the motor? | |
07-28-2011, 10:35 PM | #16 |
I wanna be Dave Join Date: Feb 2004 Location: Columbia Gorge
Posts: 5,512
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Might be out of luck. LRP makes that one sound like it's designed not to be opened up.
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07-29-2011, 01:32 AM | #17 |
RCC Addict Join Date: Jan 2005 Location: Germany north
Posts: 1,669
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you need to desolder the plate i think there is apiece of something between rotor and stator or the mag is cracked |
07-29-2011, 09:38 AM | #18 | |
RCC Addict Join Date: Dec 2009 Location: Rock Bouncin' with the Patented Technique
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Thanks dude I'll try that, or atleast post pictures up of what I've gotten done and what I can't figure out how to do. | |
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