RunRyder - What holds the main gear in place on Hummingbird?

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e-Century Hummingbird - Swift > What holds the main gear in place on Hummingbird?

rob_jones
Key Veteran
Location: Oglethorpe, GA

I know that the rotor head is held on with a pin, but I can't figure out the main gear. I want to pull the mainshaft to a) check that I haven't bent it, b) balance the head.

I don't see a pin in it and I can't tell if it screws on or what. Anybody know?

-----
Team MRC Hirobo
I reject your reality and substitute my own.

05-29-2003 Over year old.

Hoverup
Elite Veteran
Location: Gulf Coast

In the normal position, the retaining pin in the main (spur) gear is not easily visible. Remove the head assy., push the mainshaft down and get the needle nose pliers on the lower retaining pin and pull. Voila, finished! If you lose that little bugger, a replacement is easily fabricated from a section cut out of a "T" pin or safety pin of the correct diameter. Put a bit of a bend in it near the middle of the pin and it will be as snug as the original.

Cheers - Boyd

AMA 80393
Major USAF
Retired

Cheers - Boyd
AMA80393
Major USAF
Retired

05-29-2003 Over year old.

rob_jones
Key Veteran
Location: Oglethorpe, GA

Thanks, Boyd! I'm on my way out the door right now and will work on the 'Bird tonight.

I'll report back what I find!

-----
Team MRC Hirobo
I reject your reality and substitute my own.

05-29-2003 Over year old.

rob_jones
Key Veteran
Location: Oglethorpe, GA

There is no pin....

Okay, I looked real close. There is no pin through the main gear. I guess it's pressed on.

I got it apart, though. I pulled out the two rods that the battery holder hangs from. I don't use the Birdseed battery and they were in the way anyway. I slid the two rods out the front of the frame and was able to drop the mainshaft (with gear attached) from the bottom.

The plans show a pin, but it's not there. The design must've been changed sometime after that drawing was released.

-----
Team MRC Hirobo
I reject your reality and substitute my own.

05-30-2003 Over year old.

Hoverup
Elite Veteran
Location: Gulf Coast

Ah Ha another gold star for Taiwanese configuration mgt. Call Century and tell them you want a refund for the missing pin!

05-30-2003 Over year old.

rob_jones
Key Veteran
Location: Oglethorpe, GA

LOL, Boyd! Yeah! I should demand my missing pin (or the cash equivelant).

By the way, I should clarify my last post. I DID NOT remove the two carbon rods that run under the main frame. I removed the hangers for the Birdseed battery. I put the rods back after putting the mainshaft back.

-----
Team MRC Hirobo
I reject your reality and substitute my own.

05-30-2003 Over year old.

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e-Century Hummingbird - Swift > What holds the main gear in place on Hummingbird?

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