HS-65MG Rebuild Instructions - Page 2 - HeliFreak
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450 Class Electric Helicopters 450 Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.


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Old 02-14-2008, 11:58 AM   #21 (permalink)
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Default Stripped gears.

I have experienced stripped gears when the rotor blades has cut some serious grass. This has happened twice now. There were not a scratch on the blades so it was minor strikes. Dont ever put in High-Tech HS55 servos in your heli they are cheap crap!

Regards "Per".
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Old 02-14-2008, 03:30 PM   #22 (permalink)
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Quote:
Originally Posted by stenkilde View Post
I have experienced stripped gears when the rotor blades has cut some serious grass. This has happened twice now. There were not a scratch on the blades so it was minor strikes. Dont ever put in High-Tech HS55 servos in your heli they are cheap crap!

Regards "Per".
I held out on metal gears for a long time. BIG MISTAKE!

Rick
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Old 02-23-2008, 07:57 PM   #23 (permalink)
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im getting tired of changing out my HS65HB karbonite gears, specifically on the aileron servo and am wondering if i can just purchase HS65MG Metal gears and use them for my HB? is it a direct install without any modifications?

if it does fit would there be speed differences between one MG servo and 2 HB servos?

Thanks
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Old 02-23-2008, 09:36 PM   #24 (permalink)
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Default works

It's a straight trade to go to metal. No changes required. No differences in speed noted on next flight, at least for me.
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Old 02-23-2008, 09:41 PM   #25 (permalink)
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It's a straight trade to go to metal. No changes required. No differences in speed noted on next flight, at least for me.
Thanks... there is about a $10 difference between the two sets and i think it will be worth it.
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Old 03-06-2008, 08:41 PM   #26 (permalink)
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Thanks... there is about a $10 difference between the two sets and i think it will be worth it.
Absolutely!
Rick
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Old 04-15-2008, 05:46 PM   #27 (permalink)
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Hi all,

im running HS56 KG and im fed up of replacing the gear sets. So im thinking of going down the HS65 MG route. If i do this and when i next crash if the servo's dont give is there then normally another part that goes?

Thanks
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Old 04-17-2008, 04:22 PM   #28 (permalink)
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Sorry its slightly off topic guys but to you mount your HS65s inside the frame like Finless' videos or outside like in the manual?

Its going to be a lot easier to pull out a servo to change it if they're mounted outside but I'm worried about the geometry.

(I'm upgrading from a CDE XL)
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Old 04-17-2008, 04:56 PM   #29 (permalink)
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Hi all,

im running HS56 KG and im fed up of replacing the gear sets. So im thinking of going down the HS65 MG route. If i do this and when i next crash if the servo's dont give is there then normally another part that goes?

Thanks
Never had a problem.
Rick
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Old 04-17-2008, 04:57 PM   #30 (permalink)
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Originally Posted by giskard View Post
Sorry its slightly off topic guys but to you mount your HS65s inside the frame like Finless' videos or outside like in the manual?

Its going to be a lot easier to pull out a servo to change it if they're mounted outside but I'm worried about the geometry.

(I'm upgrading from a CDE XL)
If it is like the SE, I put mine on the inside for geometry. After changing to metal gears, I never had to rebuild them again anyhow.

Rick
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Old 04-18-2008, 10:01 AM   #31 (permalink)
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Thanks :o)

Now I just have to find a file small enough to open the screwholes a little!
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Old 04-26-2008, 08:59 PM   #32 (permalink)
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I crashed last weekend and I thought my pitch and aileron servos were a little stripped because they were making a little noise at zero pitch like some of the gears are a little rounded over the top. I don't see anything wrong with any of the gears but, I can't get a close look at some of them because I can't get the output shaft gear off. I pull it straight up and it won't budge. How hard do you have to pull to get it off?
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Old 04-26-2008, 09:03 PM   #33 (permalink)
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Originally Posted by zagiman View Post
I crashed last weekend and I thought my pitch and aileron servos were a little stripped because they were making a little noise at zero pitch like some of the gears are a little rounded over the top. I don't see anything wrong with any of the gears but, I can't get a close look at some of them because I can't get the output shaft gear off. I pull it straight up and it won't budge. How hard do you have to pull to get it off?
Sometimes really hard. Keep pulling, it will come off.
Rick
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Old 05-06-2008, 08:27 AM   #34 (permalink)
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A little help please. I rebuilt an HS 65 with carbonite gears ( I'm waiting for 3 sets of MG's I ordered, but wanted to fly while waiting). When I put the tiny gear in second, after assembly I could see the brass motor pinion spinning freely without contact with the other gears. Then I switched the order and put the little gear in first, and everything seemed to work fine. I put the thing together and when I tried to hover it (after setting up my swashplaete), I was all over the place. A little while later the servo is stripped worse than ever. When my MG's come I want to make sure I rebuild the servo correctly. What did I do wrong the first time that the gears weren't meshing?
Thanks,
Angel
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Old 05-06-2008, 10:41 AM   #35 (permalink)
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Originally Posted by ambravo View Post
A little help please. I rebuilt an HS 65 with carbonite gears ( I'm waiting for 3 sets of MG's I ordered, but wanted to fly while waiting). When I put the tiny gear in second, after assembly I could see the brass motor pinion spinning freely without contact with the other gears. Then I switched the order and put the little gear in first, and everything seemed to work fine. I put the thing together and when I tried to hover it (after setting up my swashplaete), I was all over the place. A little while later the servo is stripped worse than ever. When my MG's come I want to make sure I rebuild the servo correctly. What did I do wrong the first time that the gears weren't meshing?
Thanks,
Angel
I'm not sure what you did wrong, but the metal gears must go in in this order:


Good luck!

Rick
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Old 05-06-2008, 10:45 AM   #36 (permalink)
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Maybe you put the little gear in upside down.
Rick
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Old 07-31-2008, 03:57 AM   #37 (permalink)
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Originally Posted by damyxz View Post
Another tip when rebuilding servos, Be sure not to put grease on the potentiometer tracks or it will mess up the servo centering ability. I also make it a point to clean the potentiometer tracks with deoxyit spray cleaner and then sprayit with deoxyit gold. This makes the contact of the potentiometer better and it is lubed too, making it last longer and center really good. I get the deoxyit spray from radioshack and I have been using this spray for my studio mixers for flawless sound recording.
Can anyone please post a picture on this.. Which one is a potentiometer tracks.. Please. thanks.
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Old 09-08-2008, 07:36 AM   #38 (permalink)
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So the other day, I stripped the Pitch and Aileron servos and replaced with MGs (finally). My elevator is still Karbonite...is there a reason to switch them out now too in order to keep everything consistent, or does it not matter?

Thanks.
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Old 11-22-2008, 09:53 AM   #39 (permalink)
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I have a problem after rebuilding the servo only moves in one direction could this be caused by the pot being dirty on one side?
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Old 11-22-2008, 04:10 PM   #40 (permalink)
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did you make sure the potentiometer is engaged properly?
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