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HelicopterThunder TigerOther › Raptor 60 Build woes
12-17-2003 11:30 AM  13 years agoPost 1
Peter65

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Roxby Downs, South Australia.

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Just putting together my new 60.

Just a couple of questions as the instructions are vague to say the least.

1. The slip ring has been drilled and so has the mainshaft. The shaft holes have been tapped for the screws from the slip ring to screw into. (not set screws) So the slip ring height is not adjustable.
As far as I can tell I have everything together correctly but if I put the slip ring on it pulls the shaft up to high and rotating the shaft is very tight.

2. Also what is the length of the flybar from control arm to paddles?

The latest kit comes with the torque tube being predrilled and bolt/nuts supplied

Thanks Everyone

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12-17-2003 11:50 AM  13 years agoPost 2
psawya

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Woodinville, WA

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The main shaft friction, or play, or binding is adjusted by moving the LOWER mast bearing block up or down. Loosen the two bolts in each side of the lower mast bearing block and you should be able to get everything to fit without binding and without slop. The mast collar you talked about as a slip ring, does get attached with two short bolts.

Not sure of the control arm to paddle length. I would just seat them completely, measure where they are and then if needed adjust one out to match the other. I use MA 3D paddles on mine.

Hope this helps.

Pete

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12-18-2003 12:43 AM  13 years agoPost 3
Peter65

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Roxby Downs, South Australia.

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psawya,

As yet I have not tightend any screws or bolts. The lower bearing block is still loose. The tightness is due to the locking ring being up too high/tight under the upper bearing block.

This is a new V2 straight from the factory and was supplied with 2 M3x6 socket screws to secure the slip ring. (Not set screws) as I would have expected. (to enable adjustment over time) The locking ring holes are not threaded. The shaft is? Possibly new design by TT?

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12-18-2003 01:15 AM  13 years agoPost 4
psawya

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Woodinville, WA

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Nope, that is the same design as on the R60V2. You could possibly have one or both of the bearing blocks installed upside down. Also, the mast could be installed upside down. The end holes in the mast are not the same distance from the ring clamp holes.

Pete

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12-18-2003 01:19 AM  13 years agoPost 5
Dazzler

rrElite Veteran

Ohio

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I agree with Psawya

Sounds like your mainshaft is upside down, also make sure that the grey gear is not upside down, the countersunk area of the main grey gear should face upwards.

Daz...

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12-18-2003 03:18 AM  13 years agoPost 6
pistole

rrVeteran

Heli Land ....

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.

Upside Down Mainshaft
___________________


I would need to differ on this because I have had recent experience replacing the MShaft on my almost new Rap60V2.

If PETER had installed his Mshaft upside down , the collar ('slip ring') cannot be bolted onto the MShaft at all. ( I know because I did just that , ie , installed the MShaft upside down and lo and behold , the collar does not line up with the bolt holes on the MShaft , more cursing and swearing........... ).

There is no issue about a 'tight fit' for an upside down Mshaft. The two bolt holes on the MShaft that are meant to accept the two screws of the collar do not match up AT ALL if the MShaft is upside down.

When I was putting the thing together , I was also amazed that when the collar when in , there was almost no up-down play in the MShaft. This was as opposed to my experience with that Rap30V2 of mine where the MShaft collar can actually be adjusted , up and down , to eliminate most of the up-down play of the MShaft.

Therefore , I would be more inclined to agree with the top bearing block being upside down and/or the bearing there not being installed properly.


Flybar Paddles
_____________


As for the length of the flybar paddles , screw in the paddles until the threaded part of the flybar dissappears from view in 'window' of the little aluminium locking collar embedded in the paddle itself. Then measure for exact length , adjust , then locktite the 4 little set screws in BUT not too tight , if not you'll never be able to get them off again.


Pinned Torque Tube
_________________

I am surprised to note that your new torque tube is drilled , ready for pinning. The Rap60V2 that I picked up about 2 months ago (just off the boat from Taiwan) did not come with the drilled TTube. I guess that TTR are really trying their best to resolve ALL outstanding issues with their rappys.

.

Rap70. TT70.Rap50. TT50.RD8000.

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12-18-2003 04:44 AM  13 years agoPost 7
psawya

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Woodinville, WA

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I think most folks bolt the collar to the main shaft prior to installing the bolt into the red tail drive gear. This allows the mast to slide down and gives excellent access to the two bolts securing the collar. Then you slide the mast assy up, with collar installed and insert the bolt into the red tail drive gear. This could probably be done and would result in a very tight fit of the mast assy. Again, I would remove the mast, ensure that the bearing blocks are installed in the correct orientation. As a test fit, install the mast into the helicopter through the collar, tighten the two bolts securing the collar, do all of this with the main gear, auto hub and tail gear removed, With the mast fully pressed upwards so that the collar is seated against the top bearing your mast should be flush with the bottom of the bottom bearing. If it is not, something is installed in the wrong orientation.

Your top bearing block should have the bearing side that is flush (almost) with the bearing pointing down.

Your bottom bearing block should have the bearing side that is flush (almost) with the bearing pointing up.

One last note. Take a look at the collar and see if the holes in the collar for the two screws are not centered. If they are off center for some reason, then the collar could also be installed in correctly. Side note> the ones I have seen are all centered, so unless this is a design change or flawed part, this should not be the problem.

Hope this help you,
Pete

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12-18-2003 07:17 AM  13 years agoPost 8
G.Man

rrProfessor

Bristol

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you probably have the main gear (grey) upside down

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12-18-2003 07:18 AM  13 years agoPost 9
Peter65

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Roxby Downs, South Australia.

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I will check the grey gear, it maybe upside down.
I have swapped both upper and lower bearings to make sure which way was up.

The shaft is definately not upside down.

Off to play with it some more.

Thanks

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12-18-2003 09:20 AM  13 years agoPost 10
Bob7657

rrApprentice

Mission, TX

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R60 Binding!

I had the same problem on the R90 I just put together, It was binding so bad I could not turn the main gear. I checked everything 100 times and there was just no way that it would not bind. I finally ended up grinding the collar down 2 or 3 mm but still not happy with how bad it is binding.

I'm thinking of using a xcell split collar so that I can ajust it, I do not like not being able to adjust the collar for a smooth turning main shaft. I have built a 30v2, 50V2, 60V2 and did not have this problem. The only thing I can think of is that the holes in the frames must be off by a little bit because it was perfect on the 60 machine. I also checked the main shaft from the 60 and the holes did line up the same.

I checked the upper and lower bearing, when I moved the lower bearing upwards to releive the binding then I was not able to get the screws to go into the upper bearing block so that is why I came up with the idea to grind some of the ring down so I could get the upper bearing block to line up with the frame holes, this is not a suggested method because we should not have to do this but it was the only thing I could think of.

So just letting you know that the new R90 Std kit is having the same issue so you are not alone, I have been doing this for 8 years on models and 28 years on the real thing so I do have some mechanical knowledge. Maybe we need to write some letters to the Ace on what is going on here!!!!!!!

Bob

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12-18-2003 09:29 AM  13 years agoPost 11
Peter65

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Roxby Downs, South Australia.

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Bob7657,

Exact problem Bob. What has changed from your 60V2 to mine?
I am thinking that either the head of the locking ring screws are too long or not recesed deep enough?

I also don't want to resort to grinding which I was considering. Next option is the find same screws with lower heads or counter sunk philips head (not sure if that is what they are called in the US).

Can anyone post some photos so I can see that I have everything in the right way?

Thanks

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12-18-2003 09:42 AM  13 years agoPost 12
pistole

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Heli Land ....

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Hi.

If your two bearing blocks and bearings are installed correctly and you still have a binding problem , I would think that there is some manufacturing tolerance problem.

Have you tried another Main Shaft ? That would be a cheap way to eliminate something obvious.

Failing that , I would not recommend lengthening the holes in the frame. That would be an irreversible mod and is difficult to do properly resulting , perhaps , in a skewered mount(s) for the bearing blocks .......

An easier and less risky option would be to simply grind down the locking collar a couple of fractions of a milimeter. Easy to do and locking collars are CHEAP.

Hope this helps.

Though its no consolation , my Rap60V2 went together flawlessly .....................

Rap70. TT70.Rap50. TT50.RD8000.

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12-18-2003 09:53 AM  13 years agoPost 13
Peter65

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Roxby Downs, South Australia.

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Extreme frustration. I have stripped and reasembled a number of times looking for what I have done wrong.

Laughing at yourself will lengthen your life. Laughing at me will shorten it...

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12-19-2003 05:21 AM  13 years agoPost 14
Unbalanced

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Melbourne, Australia

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Peter - I've PM'd you if you want to call me to go through it with the heli's in front of both of us.

Jeff

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12-19-2003 06:37 AM  13 years agoPost 15
Peter65

rrKey Veteran

Roxby Downs, South Australia.

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To all V2 60 & 90 owners

Here is a very easy and cheap fix to the problem of the locking collar binding too tight up under the upper bearing.
I will post pics when I can get some.

I found a replacement for the M3x6 socket screws, which is the cause of the problem.

The new screws are high tensile M3x8 with counter sunk socketed heads.
These screws are still a little too high when installed. So to fix this all I did was to counter sink the collar holes until the head of the screw is flush with the collar surface.

I believe this interim fix is much beter than grinding down the collar.

These screws were obtained from a specialst fasteners store and are of high quality high tensile steel.

Best part was this cost me nothing more than a bit of fuel to get to the shop. The guys didnt charge me for the 2 screws.

Cheers all and I hope this fixes the issue. I will also email TT with my fix.

Peter

Laughing at yourself will lengthen your life. Laughing at me will shorten it...

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12-19-2003 09:14 AM  13 years agoPost 16
G.Man

rrProfessor

Bristol

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What were the screws binding on?

Sounds like your bearing carrier was upside down?

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12-19-2003 10:47 AM  13 years agoPost 17
Al Magaloff

rrMaster

12,199 Posts- Enough Time Wasted. See Ya!

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Agree with Mark here. The deep side of the top bearing carrier faces UP. You have to have it facing down for the screws to interfere. When the bearing blocks are oriented correctly, those screws are a mile away! The only time I've ever heard that this was not the case, was when using the poorly machined aluminum Maverik bearing blocks. I have assembled Raptor 60/90's stock, TT metal bearing blocks, carbons frames, stock frames, hard mainshafts, etc.

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12-19-2003 11:11 AM  13 years agoPost 18
G.Man

rrProfessor

Bristol

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PS

if it is upside down you do not want to fly like that, your heli will self destruct when it gets airborne...

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12-19-2003 11:16 AM  13 years agoPost 19
Al Magaloff

rrMaster

12,199 Posts- Enough Time Wasted. See Ya!

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I bought my first Rap60 from a local guy who assembled the heli with the bottom bearing block upside down. On it's first flight, the mainshaft pulled right out of the lower bearing block! Needless to say, I got it at the "right" price!

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12-19-2003 11:29 AM  13 years agoPost 20
G.Man

rrProfessor

Bristol

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Al

imagine if they both went...

not pretty

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