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Post by Dr. Evil on Feb 7, 2012 10:14:21 GMT -4
Did anyone see the recall that Align has on there version of these FBL heads. The bolts that attached the linkage bracket to the blade grips are getting harmonics and breaking. The issued new bolts that are a higher tensile. Hope our heads dont run into the same problem. Anyone know what tensile our bolts are. I might order the upgraded ones from align to be safe No but after hearing all the issues with Align's tail blade grip bolts being weak. This may not be necessary but I am personally going to replace all mine including what you just mentioned along with maybe the socket screws that bolts through the head/main shaft as well with a 12.9 grade socket screw by companies like Fastenal. Anywhere that a bolt is being put to stress I am considering of upgrading. It will be just a piece of mind for me and again this may not be necessary to do. BTW, I believe a 12.9 grade screw/bolt is the highest strength you can buy. www.fastenal.com/web/search/product/socket-cap-screws/_/Navigation?searchterm=12.9+grade+socket+screws&sortby=&sortdir=&searchmode=&refine=~|categoryl3:"600040 Socket Cap Screws"|~
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Post by garrettt04s on Feb 7, 2012 10:25:22 GMT -4
good idea
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Post by garrettt04s on Feb 7, 2012 10:26:01 GMT -4
are you missing some kind of brass bushing or anything? Im just looking for the problem so we can figure it out. All brass bushings are in place. I upgraded the plastic levers from my Align 550 to the KDE levers a few months ago so I am going to install the old Align plastic levers tonight to see what happens. Let me know what you find out
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Post by onthedeck on Feb 7, 2012 11:33:38 GMT -4
This comment for sure shows that you had them way too tight.That little bolt going into that tiny bearing isn't made to be torqued to the point the threads stretch.If you torque it down that much,the bolt is junk and you chance it stripping or stripping in flight.
This is the same tail assy used on the 600E/N and 700E/N.Out of hundred's of kit's sold without a single issue with the tail,your the first and the above part of the post shows why.You can't torque them slider arm bolt's down like that. The only one's that need to be torqued down that tight are the tail grip bolts that go into the hub and spindle/feathering shaft bolt's going through the main grip's..
Im not being mean or anything so hope you don't take my post the wrong way.Been doing this over 4 year's now and seen the same thing happen many time's
If this was the case,others would have the exact same issue..Just saying man..
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Post by jgpncll on Feb 7, 2012 11:41:50 GMT -4
This comment for sure shows that you had them way too tight.That little bolt going into that tiny bearing isn't made to be torqued to the point the threads stretch.If you torque it down that much,the bolt is junk and you chance it stripping or stripping in flight. This is the same tail assy used on the 600E/N and 700E/N.Out of hundred's of kit's sold without a single issue with the tail,your the first and the above part of the post shows why.You can't torque them slider arm bolt's down like that. The only one's that need to be torqued down that tight are the tail grip bolts that go into the hub and spindle/feathering shaft bolt's going through the main grip's.. Im not being mean or anything so hope you don't take my post the wrong way.Been doing this over 4 year's now and seen the same thing happen many time's If this was the case,others would have the exact same issue..Just saying man.. That comment does not show for sure that it was too tight. If the bolt is just run up to the bearing surface without much tension and not tight at all it binds severely. I'm not saying it needs to be torqued to a few foot lbs. or even much more than a few inch lbs. but a bolt needs to be and is designed to be torqued. If it is not torqued it can't do what it is designed to do. If a bolt is not torqued what is going to hold it in place? ? I'll patiently wait for your answer to this question. Lock-tite is not going to hold it in place.
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Post by jgpncll on Feb 7, 2012 11:51:45 GMT -4
Nuts and bolts,
The two partners are kept together by a combination of their threads' friction, a slight stretch of the bolt, and compression of the parts.
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Post by onthedeck on Feb 7, 2012 11:53:18 GMT -4
I snug them bolt's going into the slider arm's with 2 finger's with the hex tool.Never had one back out or snap and im pretty hard on my heli's.When there sung,loctite won't let them back out.That's the whole point of useing loctite ,it's like having a nut on the other side of the bolt..
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Post by jgpncll on Feb 7, 2012 12:01:15 GMT -4
Lock-tite is designed to prevent the bolt/nut from loosening in high vibration environments.
Never was and never has lock-tite been designed or intended to be used to solely hold a fastener in place. Expecting lock-tite to hold a fastener in place is just asking for trouble and I will never expect nor allow lock-tite to solely hold a fastener in place.
Here's a question for you?
Would you put the lug nuts on the studs of a vehicle that you or your wife was driving by just putting some lock-tite on the threads and then snugging the nuts?
I don't think so. You would properly torque the nuts so the bolt and nut stretch and hold.
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Post by garrettt04s on Feb 7, 2012 12:07:33 GMT -4
Lock-tite is designed to prevent the bolt/nut from loosening in high vibration environments. Never was and never has lock-tite been designed or intended to be used to solely hold a fastener in place. Expecting lock-tite to hold a fastener in place is just asking for trouble and I will never expect nor allow lock-tite to solely hold a fastener in place. Here's a question for you? Would you put the lug nuts on the studs of a vehicle that you or your wife was driving by just putting some lock-tite on the threads and then snugging the nuts? I don't think so. You would properly torque the nuts so the bolt and nut stretch and hold. Haha I def wouldnt trust that
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Post by garrettt04s on Feb 7, 2012 12:08:40 GMT -4
I snug them bolt's going into the slider arm's with 2 finger's with the hex tool.Never had one back out or snap and im pretty hard on my heli's.When there sung,loctite won't let them back out.That's the whole point of useing loctite ,it's like having a nut on the other side of the bolt.. Thats some good flying
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Post by ghostflyer1 on Feb 7, 2012 12:30:29 GMT -4
My new Fusuno Canopy came in today and it looks blinging I ordered canopies from Fusuno for my 600 and 700 and they were incredible to say the least.... Almost did not want to fly with them because of that
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Post by garrettt04s on Feb 7, 2012 13:13:50 GMT -4
My new Fusuno Canopy came in today and it looks blinging I ordered canopies from Fusuno for my 600 and 700 and they were incredible to say the least.... Almost did not want to fly with them because of that Trust me I love my 2 fusuno canopies. Worth every penny. Packaged unbelievably good
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Post by garrettt04s on Feb 7, 2012 13:16:07 GMT -4
This comment for sure shows that you had them way too tight.That little bolt going into that tiny bearing isn't made to be torqued to the point the threads stretch.If you torque it down that much,the bolt is junk and you chance it stripping or stripping in flight. This is the same tail assy used on the 600E/N and 700E/N.Out of hundred's of kit's sold without a single issue with the tail,your the first and the above part of the post shows why.You can't torque them slider arm bolt's down like that. The only one's that need to be torqued down that tight are the tail grip bolts that go into the hub and spindle/feathering shaft bolt's going through the main grip's.. Im not being mean or anything so hope you don't take my post the wrong way.Been doing this over 4 year's now and seen the same thing happen many time's If this was the case,others would have the exact same issue..Just saying man.. That comment does not show for sure that it was too tight. If the bolt is just run up to the bearing surface without much tension and not tight at all it binds severely. I'm not saying it needs to be torqued to a few foot lbs. or even much more than a few inch lbs. but a bolt needs to be and is designed to be torqued. If it is not torqued it can't do what it is designed to do. If a bolt is not torqued what is going to hold it in place? ? I'll patiently wait for your answer to this question. Lock-tite is not going to hold it in place. I was just messing with my tail and i took my bolt out loctited it with blue and reinstalled it. Its in there tight and zero binding. Im not relying on loctite and let me tell you its in there tight. IDK whats wrong with your yours by mine is silky smooth when the bolts loose as well as really tight.
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Post by garrettt04s on Feb 7, 2012 13:18:21 GMT -4
My new Fusuno Canopy came in today and it looks blinging I ordered canopies from Fusuno for my 600 and 700 and they were incredible to say the least.... Almost did not want to fly with them because of that Pics
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Post by onthedeck on Feb 7, 2012 13:41:09 GMT -4
Lock-tite is designed to prevent the bolt/nut from loosening in high vibration environments. Never was and never has lock-tite been designed or intended to be used to solely hold a fastener in place. Expecting lock-tite to hold a fastener in place is just asking for trouble and I will never expect nor allow lock-tite to solely hold a fastener in place. Here's a question for you? Would you put the lug nuts on the studs of a vehicle that you or your wife was driving by just putting some lock-tite on the threads and then snugging the nuts? I don't think so. You would properly torque the nuts so the bolt and nut stretch and hold. Read what's posted please. loctite is used to keep the bolt from coming loose and backing out.When it drys,it's hard and fill's the open areas in the threads.When that happen's and the bolt is SNUG,the bolt won't come loose and back out.That's why you get the crack sound when you break bolt's loose with loctite on them If you use too much loctite,you chance stripping the bolt head because it stuck and won't come loose at all.That's when you use heat.Anyone that's used loctite and anyone that's been in the hobby long enough knows this stuff. A car lug has nothing to do with this hobby and the mis-hap you had,very bad example.You don't crank bolt's down on these heli's like you would on a rotor stud.That would be like saying you should crank the intake bolt's down like you would rotor studs.If you do that,you'll warp/crack the intake. Some part's don't need to be as tight as other's and it clearly shows you don't know this..
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