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S107G repair question
Tags: Syma X9
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EddieFromRI
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Guests
December 29, 2011 - 1:51 am

My son received a S107G helicopter for Christmas. After a few flights the top propellers are flopping and the helicopter is uncontrollable. I have spare parts and I’ve searched the Internet but I don’t see what the problem is. Hopefully once I can idendify the problem, I will be able to fix it with the spare parts. I took 5 photos. The URLs are below. If anyone can help me I would greatly appreciate it [and so would my son 🙂 ].

Eddie

 

http://imagehost.vendio.com/a/7603760/view/Gyro1.JPG

 

http://imagehost.vendio.com/a/7603760/view/Gyro2.JPG

 

http://imagehost.vendio.com/a/7603760/view/gyro3.JPG

 

http://imagehost.vendio.com/a/7603760/view/Gyro4.JPG

 

http://imagehost.vendio.com/a/7603760/view/Gyro5.JPG

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Supernova
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Guests
December 29, 2011 - 3:04 am

Looks to me after close inspection at your pics that the pins that hold the top blades the the main shaft have broken this will need a new shaft as well because that could be bent.

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EddieFromRI
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Guests
December 29, 2011 - 3:57 am

Thank you.

Is there a schematic or any diagram(s) available Online that would make doing repairs/replacing parts any easier for a novice like me?

Thanks again,

EddieFromRI

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Old_Iron_Spine
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Guests
December 29, 2011 - 4:23 am

Hey, I had the same problem. Here is what I ordered.

http://www.amazon.com/gp/produ.....B004N37Y8Q

I also bought a really small, very long screw driver for those hard to reach places.

I wouldn't recommend flying it until you get the part though.

Hope that helped,
Old_Iron_Spine

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EddieFromRI
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Guests
December 29, 2011 - 5:31 am

I do have that part. It came as part of a kit.

I assume replacing it is easier than I fear.

Any tips...

Do I just loosen the tops screws and take it apart and then replace this part and put it back together the same way?

Eddie

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Old_Iron_Spine
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Guests
December 29, 2011 - 5:56 am

Yes, check the shaft first to make sure the shaft isn't bent (it shouldn't be) then loosen the screws in the center of the tip to take it off. Also, there will be brackets that connect the flybar and rotor, detach those from either the flybar of rotor bracket. And you will probably want to take the rotors off too just to make sure the rotor won't break when you put it back into its place on the new tip.

I hope I helped and good luck!
Old_Iron_Spine

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EddieFromRI
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Guests
December 29, 2011 - 6:02 am

Thank you!!

I really appreciate the help.

 

I’m trying to replace the Main Shaft.

I don’t know exactly which screws to loosen, or how much to force anything. I see gears that I don’t want to disrupt.

Here is where I am at:

http://imagehost.vendio.com/a/.....Apart1.JPG

What is my next step?

 

Also is getting the parts in the top of the next photo onto the new Main Shaft simply a matter of loosening the screws and moving them?

http://imagehost.vendio.com/a/.....Apart2.JPG

 

I’m guessing by how much my son loves this helicopter that I may become quite good at fixing them soon. I HOPE

 

Once Again:

Thank you,

I really appreciate the help.

 

EddieFromRI

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EddieFromRI
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Guests
December 29, 2011 - 7:26 am

I have been searching and watching videos all day. This forum is the best help by far. I found a way to replace the main shaft here.

http://www.rcgroups.com/forums.....?t=1251867

Is that actually how involved it is.

If so I may be over my head.

EddieFromRI

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Syma Freak
Admin
December 29, 2011 - 9:35 am
Member Since: November 26, 2010
Forum Posts: 1432
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Have a look at the last video link here

http://syma107.com/syma-s107-repairs/

"Fly like a butterfly sting like a Syma" http://syma107.com

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EddieFromRI
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Guests
December 29, 2011 - 10:27 am

Thank you.

I did watch that video earlier today. I even captured an image at each step and printed them out. I just can't seem to remove the old shaft.

I will try again with more force.

 

If that does work, I assume I need to attach the pieces from the old shaft onto the new one (see below)

http://imagehost.vendio.com/a/.....Apart2.JPG

 

I'm feeling quite dumb and quite appreciative.

Eddie

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Syma Freak
Admin
December 29, 2011 - 10:43 am
Member Since: November 26, 2010
Forum Posts: 1432
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I'm feeling quite dumb and quite appreciative.

Eddie

You are not dumb buddy,repairing helis is a learning curve,the shaft can be stiff to pull out,try with pliers,gentle but with more force-keep us all posted

"Fly like a butterfly sting like a Syma" http://syma107.com

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EddieFromRI
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Guests
December 29, 2011 - 10:47 am

I took a needle nose pliers and pulled from the top of the shaft. Nothing happened. I do not think I was too timid. I turned the gears but I’m not quite certain how to remove the old shaft.

 

Here is where I’m at.

http://imagehost.vendio.com/a/.....oApart.JPG

I feel if I pull harder I may bend something or damage the circuit board.

Does anything else need to be loosened?

 

Thanks,

Eddie

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EddieFromRI
Guest
Guests
December 29, 2011 - 11:12 am

Thanks for your patience.

Look at this revised jpeg:

http://imagehost.vendio.com/a/.....oApart.JPG

I’m pulling at point A with a pliers in an attempt to remove the shaft at point B. Is that correct? I feel like I’m about to damage the helicopter. I’m pulling quite hard.

Looking for reassurance before continuing.

 

What a long day.

Thanks again and again.

Eddie

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EddieFromRI
Guest
Guests
December 29, 2011 - 12:11 pm

Update:

I’m still working on removing the old rod.

 

Upon close examination I noticed that the Main Shaft is NOT connected to the circuit board however it is so tight in the bottom gear(s) that I can not remove it.

Please read the post above this one as well.

Eddie

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Old_Iron_Spine
Guest
Guests
December 29, 2011 - 5:23 pm

I believe you did what you where supposed to do. Now just take the black tip from the new shaft and it should work! Good job, and I'm glad for helping you out!

God bless,
Old_Iron_Spine

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Old_Iron_Spine
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Guests
December 30, 2011 - 4:12 am

Sorry, replace the old tip with the new one. And then you should be good.

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EddieFromRI
Guest
Guests
December 30, 2011 - 4:17 am

Is my goal to swap the black tip from the Old shaft with the broken tip?

OR

Changing the entire shaft and tip with the new one?

 

AS stated in my last 2 posts… I can not get the old shaft past the gears.

And

I tried removing just the tip from the new one and that seems impossible as well.

 

Day 2…I hope I’m almost there…

 

Please reply

 

Thank you again,

Eddie

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Old_Iron_Spine
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Guests
December 30, 2011 - 4:21 am

Yeah, pretty much. You can do what your pleased to do though. If you replace the whole shaft, you'll have to remove the gears.

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EddieFromRI
Guest
Guests
December 30, 2011 - 4:28 am

How hard is it to remove the top tip.

Is it glued?

Does it need to be re-glued onto the new one or do they snap on and off.

 

And if just the top nees to be swapped... did I need to take it apart as much as I did?

 

Eddie

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Old_Iron_Spine
Guest
Guests
December 30, 2011 - 4:30 am

How far did you get? Can you take pics of it all taken apart?

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