heli keeps spinning

[mano]

my lama lifts off about 2 inches from the floor then sways and starts spinning as i throttle up. it happens when i increase throttle beyond the half mark. during the spin time i cannot get any higher. i have tried adgusting the gain and proportion on the 4in1 mix controller but no luck.it seems to decrease the spinning but the problem comes back once i throttle up again. it seems that my main rotor is running slower than the other.. what could be the problem?

[johndyl]

my lama lifts off about 2 inches from the floor then sways and starts spinning as i throttle up. it happens when i increase throttle beyond the half mark. during the spin time i cannot get any higher. i have tried adgusting the gain and proportion on the 4in1 mix controller but no luck.it seems to decrease the spinning but the problem comes back once i throttle up again. it seems that my main rotor is running slower than the other.. what could be the problem?

sounds like a dying motor

[mano]

sounds like a dying motor

thanks for your response

theres a buzzing sound when the spinning occurs
any way i can confirm that the dyding motor is the cause? or if the motor is dying?

[jansonfinn]

thanks for your response

theres a buzzing sound when the spinning occurs
any way i can confirm that the dyding motor is the cause? or if the motor is dying?

yup, u r rite, 1 motor is turning slower than the other. This will cause the heli to spin. This should be cause by a dying motor

U can use a multi meter or watever device u can find to measure both motor resistance n see if they r the same value.

[GilaMonster]

check main shaft?

maybe can also check main shaft....the plastic part (holding the blade) joining the metal shaft.
It happened to me once that it is loose and heli will start spinning at high trottle.

[Bee_Flower]

maybe can also check main shaft....the plastic part (holding the blade) joining the metal shaft.
It happened to me once that it is loose and heli will start spinning at high trottle.

I once had this problem also.... as for my case it was a problem with the shaft came loose... so after tighten it is flying fine again....

[GilaMonster]

ya, just by checking for any loose part sometime can solve many problem
most of the time we went one big round to realize that

[mano]

thanks the response,
found out the main shaft was indeed loose, tightened it up and tried again.. no problem but a small crash brought the problem back so i tightend it again and had no issues so far. thanks again.. now gotta find new blades.

[Bee_Flower]

thanks the response,
found out the main shaft was indeed loose, tightened it up and tried again.. no problem but a small crash brought the problem back so i tightend it again and had no issues so far. thanks again.. now gotta find new blades.

Good for u Bro.......