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Center Stick . Ace Hobby . JR-Spektrum

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e-Hirobo SRB Quark - Lepton - XRB Coaxial > Belt riding at the bottom
 
 
balbs
Key Veteran
Location: Los Angeles, CA

If I spin the rotor head clockwise, the belt starts to go down and rub the bottom of the main drive pulley. However, if I spin it counter-clockwise, the belt starts to go back up and stays at the center of the main drive pulley. It doesn't even reach the top thus not rubbing on anything.

What adjustments can I make to keep the belt in the middle of the drive pulley?

Thanks,

Balbs
02-22-2008 06:37 AM
 
 
ConAir
Heliman
Location: Worm Wood Scrubs

Your belt guide pulleys are not perpendicular to the belt, there is some play available for adjustment by moving the CNC block that they sit on between the carbon main frames.
02-22-2008 12:50 PM
 
 
Fernando
Senior Heliman
Location: Madrid

I have been there: your gear hub is upside down.
02-22-2008 03:51 PM
 
 
ConAir
Heliman
Location: Worm Wood Scrubs

Quote 
I have been there: your gear hub is upside down.
How would that explain the directional bias:
Quote 
If I spin the rotor head clockwise, the belt starts to go down and rub the bottom of the main drive pulley. However, if I spin it counter-clockwise, the belt starts to go back up and stays at the center of the main drive pulley. It doesn't even reach the top thus not rubbing on anything.
02-22-2008 04:03 PM
 
 
balbs
Key Veteran
Location: Los Angeles, CA

Hey thanks. Yeah, it's the pulleys. I loosened them and sort of made them lean back towards the tail. Now spinning the head clockwise or counter-clockwise keeps the belt at the same level. It's a tad higher than center, but at least it's not rubbing.

Balbs
02-23-2008 09:18 AM
 
 
ConAir
Heliman
Location: Worm Wood Scrubs

I'm glad to be of help, now enjoy the best 500 class machine on the market
02-23-2008 10:19 AM
 
 
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E-flite . Futaba-RC . Next D

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e-Hirobo SRB Quark - Lepton - XRB Coaxial > Belt riding at the bottom
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