Scorpion hk 4035 turns without resistance in both directions

[Danie Dup]

Hi Guys
I recently purchased an old Logo 600 with a Scorpion Hkll 4035 - 560kv motor. It Flies flawlessly, but since oiling the bearings, the motor now turns almost without any resistance by hand in both directions.

I have never owned a Scorpion motor before, so I am not sure if I need to be concerned about this. As stated before, the motor works perfectly with no signs of any defects. It gets hot, but only mesured +- 60 degrees celsius 1 min after flight in 28 degrees ambient temperature.

Any info regarding this issue will be greatly appreciated.

Regards from Sunny South Africa
Danie

[_Dekker]

Originally Posted by Danie Dup

Hi Guys
I recently purchased an old Logo 600 with a Scorpion Hkll 4035 - 560kv motor. It Flies flawlessly, but since oiling the bearings, the motor now turns almost without any resistance by hand in both directions.

I have never owned a Scorpion motor before, so I am not sure if I need to be concerned about this. As stated before, the motor works perfectly with no signs of any defects. It gets hot, but only mesured +- 60 degrees celsius 1 min after flight in 28 degrees ambient temperature.

Any info regarding this issue will be greatly appreciated.

Regards from Sunny South Africa
Danie

Hi Danie,
The smooth turning is a property that belongs to the combination of 12 stator teeth and 10 magnets in the rotor: these tend to turn quite smooth.
I assume you are used to 8 pole motors which have much more resistance when turning by hand.
Also, when you combine the motor wires there will be more resistance. This is normal too.

Bert

[Danie Dup]

Thank you Bert for a nice explanation while keeping it simple for me.

I will now fly my heli with confidence.

Greetings