RCU Forums - View Single Post - How do you remove the main shaft in a BCP?
Old 07-11-2006 | 10:22 AM
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Bringinitallback
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From: Lawrenceburg, IN
Default RE: How do you remove the main shaft in a BCP?

Here is my procedure... and I do this alot

Take the head off all the way:
Push out the pin with a pair of scissors part of the way.
Grab it with pliers and twist to get it the rest of the way.
Undo the control arms (The ovalish shaped things).
Unhook the tail motor from the 4in1.
Turn on transmitter.
Hook battery up to 4in1.
Give it some thrust, not tons, but enough.
Squeeze some sand paper over the hole to sand away the burrs while the motor is running.
Unhook battery.
Unhook swashplate (Bend the piece of plastic that holds the swashplate from spinning... the one with the slot in it... bend it back)
Take off the swashplate.
Loosen the setscrew in the collar. Take the collar off
Put your thumb and index finger inbetween the gear and main frame and wedge the gear out.
Pull it the rest of the way.


Straighten it by doing this very simple procedure:
Get a piece of heavy metal sheet or something similiar and a hammer.
Set the metal on a brick or something similiar.
Hang the gear off of the metal sheet with the shaft on it.
Roll the gear around while randomly hitting the shaft with the flat side of the hammer for about 20 or 30 seconds.
Inspect for obvious bends... it should be ok.

Install it.

It might exhibit a slight wobble or it may be perfect, but it is the best, quickest method.

You can work with it and a marker and pliers, but that takes an awful long time and you will still might end up with a wobble.


Taking the head off should take about 30 seconds to a minute.
Sanding the shaft should take you about 30 seconds.
Taking the swashplate off should take about 15 seconds.
Beating the hell outta the shaft should take about 30 seconds.
Installation is a usually a snap. There aren't any burrs to deal with.

If you do all of that once or twice, it becomes very easy.

I really wish Eflite would come out with a stonger shaft. Its all I ever mess up anymore. Of couse I am flying with plasti-blades aka the best thing since sliced bread. Oh yeah, I burn tail motors