Cannot get blades to track correct
06-03-2007 | 01:47 PM
#1
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From: north myrtle beach, SC
Cannot get blades to track correct
I have tried everything to get my blades in track I relaced everything except link contorls swash plate they look good too me. I relplaced the main body. I have tried everything in this forum. I tried mesuring links to make sure there even. What else can I do except buying wholde new head. if I do that i have replaced everything except motors, and all for one flight in my condo lolol. It must be damaged link rods. Any help will be greatly appricate,and I have tried davisons setup and one more I forgot. I just cannot figure this out, ole do the screws that hold the linkange arms help in tracking or are the just to holde lnkage on the head, and the screw on top of the swash plate i tried adjusting that too ?????
Denny10
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Denny10
[email protected]
06-03-2007 | 01:59 PM
#2
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RE: Cannot get blades to track correct
You can't track blades by measuring the linkage rods.
You need to make sure the blades are balanced.
If you ran out of things to adjust then look at the blades.
You may have one that has more pitch then the other.
I noticed on some wooden blades, they are out of track with no load on them but in track when they have enough lift to hoover.
The best thing top do is take it outdoors and have someone look at the blades when your hovering the heli.
I use a strobe light and it's the best way to track blades.
Sorry I wasn't able to offer more help but a blade out of track if almost always an easy fix.
Next post let us know how far out they are.
Vegas/
You need to make sure the blades are balanced.
If you ran out of things to adjust then look at the blades.
You may have one that has more pitch then the other.
I noticed on some wooden blades, they are out of track with no load on them but in track when they have enough lift to hoover.
The best thing top do is take it outdoors and have someone look at the blades when your hovering the heli.
I use a strobe light and it's the best way to track blades.
Sorry I wasn't able to offer more help but a blade out of track if almost always an easy fix.
Next post let us know how far out they are.
Vegas/
06-03-2007 | 02:08 PM
#3
RE: Cannot get blades to track correct
Balanced blades is a good start to any head setup......good point whirley. Which Blade are you trying to set up?? The blade CP or the CP Pro? the screw on top of your rotor head holds it in place, it has nothing to do with tracking. Another place to look for tracking is your flybar and paddles. That usually will cause more of a vibration if out of balance, but it may be small enough to look like a tracking issue. Take the blades off, remove the tail motor wire from the 4 in 1 and spool up slowly to about 1/3 to 1/2 throttle. If you see any vibrations while looking down on it, then it could be your flybar.
Main shaft is straight and good to go??
Feathering shaft is straight? If you experienced a crash, the main shaft and spindle might be your culprit too. Keep looking........it will be the last thing ya try that fixes it! I am still trying to find that last thing on my CNC head setup, but I know it will come!
__________________________________________________ ___________________________________________
Of all the things I ever lost............................................. I miss my mind the most!
Main shaft is straight and good to go??
Feathering shaft is straight? If you experienced a crash, the main shaft and spindle might be your culprit too. Keep looking........it will be the last thing ya try that fixes it! I am still trying to find that last thing on my CNC head setup, but I know it will come!
__________________________________________________ ___________________________________________
Of all the things I ever lost............................................. I miss my mind the most!
06-03-2007 | 04:52 PM
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From: Sometown, Northern Utah
RE: Cannot get blades to track correct
yeah, it sounds to me like basically you're not adjusting the right part. You've gota figure out which blade is off pitch first. To do that unplug the motors from the 3 in 1 and arm the heli. btw these instuctions are for the pro since that's what it sounds like you have. 2 options leave it at 0 throttle in normal mode. The pitch should be -1, whichever blade is not that, that's the one you want to adjust. or you can do it at mid stick and trim and idle up and the pitch should be 0.
After you figure that out, the links you are going to want to adjust are the ones that are attached to the mixer arm that screws on. They are short links that have a metal screw type thing inside of them. You can either shorten them or lengthen them. If you shorten it will give you more negative pitch on the blade you are working on, and if you lengthen them it will give you more positive pitch. Just remember to test the tracking around hovering throttle, or 50 to 75% because that is where the tracking matters.
Hopefully that advice, plus the advice that has been given by arrow and whirely will help you out =)
After you figure that out, the links you are going to want to adjust are the ones that are attached to the mixer arm that screws on. They are short links that have a metal screw type thing inside of them. You can either shorten them or lengthen them. If you shorten it will give you more negative pitch on the blade you are working on, and if you lengthen them it will give you more positive pitch. Just remember to test the tracking around hovering throttle, or 50 to 75% because that is where the tracking matters.
Hopefully that advice, plus the advice that has been given by arrow and whirely will help you out =)
06-03-2007 | 05:18 PM
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From: Oroville,
CA
RE: Cannot get blades to track correct
As far as I know there are only a few things that can possibly affect your tracking:
1 -- the blades. Make sure that your blades are properly balanced, This is critical.
2 -- the pitch control links. This is where the tracking can be adjusted. check this link for more details: [link]http://www.bladecprepair.com/man_mr_setup_and_adjustment#tracking[/link]
3 -- the only other thing I could think of would be the feathering/spindle Shaft. Make sure that is true.
4 -- you could also double check to make sure that you did not let one of the mixing arms get flipped over. See this pic: [link]http://www.bladecprepair.com/manual_pop/bh_connected.html[/link] Make sure your mixing arms (on both sides) are orientated the way the pic shows.
For this heli there shouldnt be anything else that should affect your tracking.
1 -- the blades. Make sure that your blades are properly balanced, This is critical.
2 -- the pitch control links. This is where the tracking can be adjusted. check this link for more details: [link]http://www.bladecprepair.com/man_mr_setup_and_adjustment#tracking[/link]
3 -- the only other thing I could think of would be the feathering/spindle Shaft. Make sure that is true.
4 -- you could also double check to make sure that you did not let one of the mixing arms get flipped over. See this pic: [link]http://www.bladecprepair.com/manual_pop/bh_connected.html[/link] Make sure your mixing arms (on both sides) are orientated the way the pic shows.
For this heli there shouldnt be anything else that should affect your tracking.
06-03-2007 | 06:32 PM
#6
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My Feedback: (1)
RE: Cannot get blades to track correct
Just want to add one thing to this.
When you find the problem blade and start making the adjustments,just make one turn and remember to mare what one you're adjusting.
What Heli do you have??????????
Vegas/
undefined
When you find the problem blade and start making the adjustments,just make one turn and remember to mare what one you're adjusting.
What Heli do you have??????????
Vegas/
ORIGINAL: mrasmm
yeah, it sounds to me like basically you're not adjusting the right part. You've gota figure out which blade is off pitch first. To do that unplug the motors from the 3 in 1 and arm the heli. btw these instuctions are for the pro since that's what it sounds like you have. 2 options leave it at 0 throttle in normal mode. The pitch should be -1, whichever blade is not that, that's the one you want to adjust. or you can do it at mid stick and trim and idle up and the pitch should be 0.
After you figure that out, the links you are going to want to adjust are the ones that are attached to the mixer arm that screws on. They are short links that have a metal screw type thing inside of them. You can either shorten them or lengthen them. If you shorten it will give you more negative pitch on the blade you are working on, and if you lengthen them it will give you more positive pitch. Just remember to test the tracking around hovering throttle, or 50 to 75% because that is where the tracking matters.
Hopefully that advice, plus the advice that has been given by arrow and whirely will help you out =)
yeah, it sounds to me like basically you're not adjusting the right part. You've gota figure out which blade is off pitch first. To do that unplug the motors from the 3 in 1 and arm the heli. btw these instuctions are for the pro since that's what it sounds like you have. 2 options leave it at 0 throttle in normal mode. The pitch should be -1, whichever blade is not that, that's the one you want to adjust. or you can do it at mid stick and trim and idle up and the pitch should be 0.
After you figure that out, the links you are going to want to adjust are the ones that are attached to the mixer arm that screws on. They are short links that have a metal screw type thing inside of them. You can either shorten them or lengthen them. If you shorten it will give you more negative pitch on the blade you are working on, and if you lengthen them it will give you more positive pitch. Just remember to test the tracking around hovering throttle, or 50 to 75% because that is where the tracking matters.
Hopefully that advice, plus the advice that has been given by arrow and whirely will help you out =)
06-03-2007 | 07:22 PM
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From: Saguenay, QC, CANADA
RE: Cannot get blades to track correct
And one more tip : Put a dot of paint on one of the blade grips, and mark the blade that's in that grip on the underside with a magic marker, or a piece of tape, or whatever. This way, if you have to remove the blades for servicing, you can put the blades back in their original grip, and you won't have to mess up with the blade tracking all over again. (hopefully)
I put a dot of yellow paint on the grip, so now I call that blade the yellow blade, and draw a "Y" on the underside.
I put a dot of yellow paint on the grip, so now I call that blade the yellow blade, and draw a "Y" on the underside.
06-04-2007 | 03:29 PM
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From: north myrtle beach, SC
RE: Cannot get blades to track correct
I figured it out as I looked at control linkage the at the arms that hold pitch linkage and connecting rods the arm has been sracthed so I think the plastic arm that holds blade is bent so off too hobby shop tomorrow and now almost 190 $ in parts and only 2 flights lolololololo.
06-04-2007 | 03:43 PM
#9
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RE: Cannot get blades to track correct
Denny10
If the blades slip into the grips very easy with room to spare you may consider something like light duty shims made from a match book cover and place the *UNDER* each blade at the grips to avoid cranking down on the screws and squeezing the grips together.
I missed the post or you never answered the question.
How far out of track are the blades?
Vegas/
If the blades slip into the grips very easy with room to spare you may consider something like light duty shims made from a match book cover and place the *UNDER* each blade at the grips to avoid cranking down on the screws and squeezing the grips together.
I missed the post or you never answered the question.
How far out of track are the blades?
Vegas/
06-04-2007 | 03:48 PM
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From: north myrtle beach, SC
RE: Cannot get blades to track correct
Quarter of a inch or so I have shortin linkage let it out and nothing changes so thats why I think there is a bend in arms main shaft is new and it is true I have the cp pro
06-04-2007 | 03:54 PM
#11
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My Feedback: (1)
RE: Cannot get blades to track correct
That is a lot and you should have seen some changes even if the arm was bent.
Also both can't be bent the exact same measurement.
Are you sure you don't have a loose servo arm that may have come loose?
Try to see of you can remove the servo arm then see if you can feel the servo shaft move as you activate the controls.
Vegas/
Also both can't be bent the exact same measurement.
Are you sure you don't have a loose servo arm that may have come loose?
Try to see of you can remove the servo arm then see if you can feel the servo shaft move as you activate the controls.
Vegas/
06-04-2007 | 04:02 PM
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From: north myrtle beach, SC
RE: Cannot get blades to track correct
Ok I took the blade arms off when you look at the metal shaft it is bent big time so that is the problem lololol
06-04-2007 | 04:24 PM
#13
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RE: Cannot get blades to track correct
Well if you spun the head with no blades on it you would have spotted that really fast.
Replace that shaft and get the adjustments close then check for tracking again.
Also remember to get the LOW blade up even with the high blade.
Also make sure the paddels are 100% level as they control the pitch.
Since that rod bent make sure the main shaft doesn't have a slight bend in it.
Keep us posted.
Vegas/
Replace that shaft and get the adjustments close then check for tracking again.
Also remember to get the LOW blade up even with the high blade.
Also make sure the paddels are 100% level as they control the pitch.
Since that rod bent make sure the main shaft doesn't have a slight bend in it.
Keep us posted.
Vegas/
06-04-2007 | 04:35 PM
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From: north myrtle beach, SC
RE: Cannot get blades to track correct
Well thats whats wierd I spun it up with just paddels and it was dead on no wobble but the spindle is bent at least I know what it is now. I just wished hobby shop was not so far away. One more question where would be the best site to get aluminum upgrades??,and thanks to everyone you guys are great this hobby is damm addictive and expensive lolololololoo.
I will post when I fix everything
Denny10
I will post when I fix everything
Denny10
06-04-2007 | 04:48 PM
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RE: Cannot get blades to track correct
http://www.helidirect.com/index.php?cPath=38_137
They carry the most common parts and ship fast and cheap.
They have a crash kit but you might look into all that got damaged then order those parts to have as a back up.
If you order on line tonight the;ll have it in the mail in the morning
Vegas/
They carry the most common parts and ship fast and cheap.
They have a crash kit but you might look into all that got damaged then order those parts to have as a back up.
If you order on line tonight the;ll have it in the mail in the morning
Vegas/
