ih8nixon
Active Member
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- Arrma RC's
- Kraton EXB
I have a 45kg 9imod brushless servo in my 1/8th Kraton EXB V1. After one too many hard flat landings the servo completely froze. Opening the servo up and playing with the gears I managed to get the servo to move again, but the next time running it the servo started whirling like I had stripped the gears. Opening the servo up again I could see the gears were still in good shape. Pulling the bottom part of the case I could see that the stator of the motor was soldered to the board and it was able to separate from the bell housing and bind.
To fix this I took a peice of foam tape about 1.5 mm thick stuck it to the lower part of the case where the part of the board where the motor FETs are to push up on the motor so it can't seperate. I've run two packs and so far it's working great. A piece of adhesive thermal pad would probably be a better solution as the foam insulates the FETs.
I'm considering it a tempory fix so I can bash until I get a new servo, and I'm posting this as I couldn't find any solutions online. Not sure if this problem is specific to 9imod brushless servos or if it happens to other brands brushless servos as well.
To fix this I took a peice of foam tape about 1.5 mm thick stuck it to the lower part of the case where the part of the board where the motor FETs are to push up on the motor so it can't seperate. I've run two packs and so far it's working great. A piece of adhesive thermal pad would probably be a better solution as the foam insulates the FETs.
I'm considering it a tempory fix so I can bash until I get a new servo, and I'm posting this as I couldn't find any solutions online. Not sure if this problem is specific to 9imod brushless servos or if it happens to other brands brushless servos as well.