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SAB Goblin 630/700/770 SAB Heli Division 630/700/770 - Goblin Helicopters Factory Support


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Old 04-23-2012, 07:52 PM   #1
JTAnimal
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Question Rebuild Help

Hay guys i'm rebuilding my Goblin after a crash and I need some help with the head. I went ahead and replaced the main shaft and the spindle (H0079) But when i turn the blade holders i feel some notches (not smooth) I dont remember if it felt that way new or if i still have a unforeseen problem. thanks for your help
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Old 04-23-2012, 08:20 PM   #2
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Default Bearings

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Check your bearing including the thrust bearing . You will probably find a notchy one.
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Old 04-23-2012, 09:13 PM   #3
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Should be smooth. Likely a bad radial bearing or a damaged thrust.

This post is basically useless since Bladestrike said it all.
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Old 04-23-2012, 09:22 PM   #4
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Well I'm glad you think it's useless.
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Old 04-23-2012, 09:26 PM   #5
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Quote:
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Well I'm glad you think it's useless.
I think he meant his OWN post is useless, not the entire thread. Your thread is very helpful.
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Old 04-23-2012, 11:43 PM   #6
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Quote:
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Well I'm glad you think it's useless.
Lol, yes I meant my comment was redundant. The _thread_ is useful but my _post_ was pointless. (-:
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Old 04-24-2012, 12:26 PM   #7
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Sorry, i did not understand your post. To me this is a first so all of this is important. I have never had a serious crash and this is my first 700. But i will start by saying the crash damage on this Goblin is disapointing. Breakaway tail , ya it broke alright! I would have been better off buying a new kit with all the damaged parts on this heli.

I was hovering at 10' checkig some adjustments that we had just made when all the sudden the nose pitched up (i did not move the sticks) so i pushed the nose back down to level and i knew something was wrong i went to land and as i got close to the ground it did the pitch up motion again, but this time it was too close to the ground. our fly field is at the edge of a sod farm and all grass, cut very short. the ground is not very hard but not too soft. the heli did not crash on concrete. but you couldn't tell that by the damage to the heli.

Problem - right now i think the wire to the RX came loose or the FBL controler was bad, i have sent in the controler and am waiting for a reply.

The question i asked at the start of the thread, you guys were correct. the bearing (the one that gets the loctite) was bad on both sides, the thrust bearings were ok. I had some spare bearings that size from ny TRex 550 kit and that fixed the problem but one of the blade holders is bent so just to be safe i ordered the whole head.

So in my opinion if you crash this heli get ready to bend over and keep your vaseline handy, not much will survive. Im just giving info to people that may want it. maybe all 700 size helis are the same way, i dont know, this is the only 700 i have. I had a similar crash on my 550 and the damage was miner.

With that all said, I like this heli. it sounds great, it looks cool, i want it flying again soon. But i will go over everything carefully to make sure its working right. But i dont think its as crash friendly as SAB would have you think.

One last question - when my heli first pitched up, do you think i should have just cut the throttle and auto it down?

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Old 04-26-2012, 02:22 AM   #8
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I'm running a 2s 2200 mah 25C Gens Ace LiPo pack on my Goblin with Torq HV servos all round and it works great.

I do use a safe switch with it but no reg and it keeps it a very simple and reliable setup.

//Dennis.
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Old 04-26-2012, 07:50 AM   #9
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Quote:
Originally Posted by Thunder Fighter View Post
I'm running a 2s 2200 mah 25C Gens Ace LiPo pack on my Goblin with Torq HV servos all round and it works great.

I do use a safe switch with it but no reg and it keeps it a very simple and reliable setup.

//Dennis.
What safe are you using? Do you have a link to it? Thx
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Old 04-26-2012, 09:21 AM   #10
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What safe are you using? Do you have a link to it? Thx
The perfect regulator safe switch 2. Sorry on my phone so you will have to do a search for it.

Sent from my HTC Desire using Tapatalk 2
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Old 04-26-2012, 09:38 AM   #11
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Quote:
Originally Posted by Thunder Fighter View Post
The perfect regulator safe switch 2. Sorry on my phone so you will have to do a search for it.

Sent from my HTC Desire using Tapatalk 2
Thank you

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Old 04-26-2012, 11:56 AM   #12
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oh man thats "perfect" lol.. too bad its backordered.. I need 2 of those 1 for Fusion 1 for Gobber,
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SAB Goblin 630/700/770 SAB Heli Division 630/700/770 - Goblin Helicopters Factory Support

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