I am having a difficulty with the correct meshing of the motor pinion with the main gear on my Align TRex 250 helicopter. The pinion is grinding up the teeth on the main gear--already damaged two main gears by now, the second with less than 30 minutes of spooling up and barely flying.
I can understand the first time because the pinion had slipped on the motor shaft and as a result, the main gear got damaged because the pinion wasn't properly engaging the full depth of the main gear.
However, the second time around, there was a good engagement of the full depth of the gear teeth, but after a while the gear teeth were obviously grounded away (white powder from the main gear coming off) as the helicopter spools up.
All the parts were original Align 250 parts.
Does anyone else have a similar problem? If so, did you managed to solve it? Would appreciate your sharing of how you solved this.
I can understand the first time because the pinion had slipped on the motor shaft and as a result, the main gear got damaged because the pinion wasn't properly engaging the full depth of the main gear.
However, the second time around, there was a good engagement of the full depth of the gear teeth, but after a while the gear teeth were obviously grounded away (white powder from the main gear coming off) as the helicopter spools up.
All the parts were original Align 250 parts.
Does anyone else have a similar problem? If so, did you managed to solve it? Would appreciate your sharing of how you solved this.
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