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Logo 480 › Logo 480 XXtreme questions
10-25-2014 05:27 PM  3 years agoPost 21
navihawk

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Titusville, FL

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Ok here are the pictures of how its mounted on my heli

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10-25-2014 05:36 PM  3 years agoPost 22
rexxigpilot

rrProfessor

Florida

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very well could be slipping, but inverted punchout loads the oneway the same direction. that's flawed reasoning.
Perhaps, but let's not forget that under normal, upright operation gravity and bearing slop has the "cogs" of the one-way in one position. While inverted this may change. Orientation can slightly affect a one-way bearing's wear points and engagement. In any event, I would replace the bearing.

(Edit) Also, the main shaft gets slightly worn and deformed (brinelling) from contact with the one-way, since there is longitudinal play in the shaft, the diameter of the shaft being engaged by the one-way may be slightly different (larger) when inverted. I wouldn't rule out the one-way or main shaft.

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10-25-2014 05:51 PM  3 years agoPost 23
navihawk

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Titusville, FL

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ok i will contact mikado and see what they say on monday about sending me a good one way bearing, the heli has 7 flights now. It shouldnt be bad, but i know we get parts bad from stock too so could of happened. Just sucks but oh well.

Just put a flight on it to verify it again, Here are the results

During low pitch demands like 3/4 or less the heli comes down and the blades are still free. In regular and idle up modes, it doesnt affect it.

During high pitch climb out, upright and after hard pitch bumps like tick tocks it comes down with the bearing seized up some and i have to unlock it by holding the main gear and turning the head.

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10-25-2014 05:56 PM  3 years agoPost 24
rexxigpilot

rrProfessor

Florida

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Good call navihawk. No reason to put your model at risk over a one-way.

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10-25-2014 06:03 PM  3 years agoPost 25
Ronald Thomas

rrMaster

Gainesville, Fl, USA

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Can you post a pic of the main gear with the one way installed?

Team MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!

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10-25-2014 06:25 PM  3 years agoPost 26
navihawk

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Titusville, FL

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here are the pics. I have it installed per the manual also with the 2 shims correctly isntalled the thicker .05 in between the tail pulley and main gear and the .02 after main gear before spring clip. I install it with the part that has the 4 countersunk screws attaching the hub to the gear facing upwards closest to the tail belt pulley, like its in the first and second pictures

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10-25-2014 06:29 PM  3 years agoPost 27
navihawk

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Titusville, FL

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still have the other problem about the elevator servo not getting enough travel before it hits the bottom of the anti rotation bracket, have people had to dremel it some to get more cyclic?

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10-25-2014 06:45 PM  3 years agoPost 28
cudaboy_71

rrElite Veteran

sacramento, ca, u.s.

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still have the other problem about the elevator servo not getting enough travel before it hits the bottom of the anti rotation bracket, have people had to dremel it some to get more cyclic?
if you have more travel at the top, raise the swash by lengthening the links to the servo and shortening the links to the head. you'll have the same total throw, the swash will just be further up on the shaft.

keep track of your turns and you shouldn't even have to re-do setup....though i'd check with a pitch gauge to make sure.

if it ain't broke, break it.

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10-25-2014 06:49 PM  3 years agoPost 29
navihawk

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Titusville, FL

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i set it up as even and symetrical as possible, but will try that to see if it helps, currently i have my radio set to endpoints on forward(down) elev to 75 and up to 54, if i can get up(back) elev to 75ish it will be quick enough.

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10-25-2014 07:01 PM  3 years agoPost 30
cudaboy_71

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sacramento, ca, u.s.

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if you're talking about where you set your subtrims to achieve zero and ATVs to achieve +/- 100 in the radio, that doesn't have anything to do with your servos. that's just calibrating your TX outputs to the vbar. it is surprising they're so far off though. but, I fly JR. other brands may be different.

for comparison, i have 6 vbars and they're pretty universally about 30 points of subtrim on each of the surfaces to get zero, and +15-20 click on ATV to set +/-100. But, that should be universally the same across all models, considering i use the same radio, and the vbar should get the same inbound signal.

if it ain't broke, break it.

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10-25-2014 07:12 PM  3 years agoPost 31
navihawk

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Titusville, FL

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not the endpoint, i understand how thosse work, its the dual rates

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10-25-2014 07:30 PM  3 years agoPost 32
navihawk

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Titusville, FL

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as i was reinstalling the main gear, i heard a small metal sound and saw something shiny, one of the rollers in the bearing popped off, i popped it back in but dont think i should fly.

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10-25-2014 09:43 PM  3 years agoPost 33
Lu523

rrNovice

Covington, Ga USA

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Are you sure the anti rotation braket is ruined the proper way?

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10-25-2014 10:14 PM  3 years agoPost 34
navihawk

rrNovice

Titusville, FL

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are you asking if its installed the right way? i had to install it backwards because with the ball links all the way out the servo ball link end contacts the forward lip of the bracket, so i swapped it backwards and have clearance now.

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10-25-2014 10:19 PM  3 years agoPost 35
Lu523

rrNovice

Covington, Ga USA

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Sorry for the bad spelling.
Yes I was asking if it was installed the right way. I have mine in the center holes with no problem. I am trying to think why you would not get enough travel.

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10-26-2014 12:10 AM  3 years agoPost 36
navihawk

rrNovice

Titusville, FL

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i get enough travel, but in order to get the 8* in the cyclic setup i have to move the slider to 130%, so i had to move out the ball links to give me the 8* within the 80-100% mark on the slider

Also i get 12* pitch + and -, but the heli climbs like a bat outa hell inverted, but upright it climbs decent but nothing like inverted running the same pitch. Its driving me nuts

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10-26-2014 12:58 AM  3 years agoPost 37
navihawk

rrNovice

Titusville, FL

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ok so looking over the heli for like the 50th time now, i found that i had it set up on the blade holders for trailing edge, and the manual shows leading edge with the ball link pointing forward during rotation infront of the blade holder, instead it had it behind the blade holder, i wonder if that will fix my pitch problem, Will fly it tomorrow and see whats up.

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10-26-2014 01:04 AM  3 years agoPost 38
Lu523

rrNovice

Covington, Ga USA

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Some times it is easy to miss the little things. I did the same thing on the tail blades. Took a bit to figure out why it was spinning on the ground.

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10-26-2014 03:44 PM  3 years agoPost 39
navihawk

rrNovice

Titusville, FL

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ok so i flew it again this morning, flies just like before, i was able to adjust the cyclic throws a bit and it rolls and pitches way better now, but the climbing is still the same.

Inverted climb at full pith -12 is ballistic, love it
Upright climb at full pitch +12 is weak , and after landing the bearing is same as always a little seized. What is going on......? Im most definetly leaning towards a bad one way bearing

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10-26-2014 05:23 PM  3 years agoPost 40
BobOD

rrElite Veteran

New York- USA

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In inverted it's pushing down on the collar...metal to metal. Positive pitch pulls up on a pin seated on plastic. You always get a little more movement up than down on the main shaft so set your pinion height accordingly.
It does seem a good idea to change the main shaft and one way at this point although it may not have been the original problem.

Team POP Secret

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