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Compass 7HV, 7HVU and Chronos Compass Compass 7HV, 7HVU and Chronos Model Helicopter Discussion |
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04-20-2016, 06:36 PM | #1 (permalink) |
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Join Date: May 2011
Location: New Jersey
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Swash slop?
I have about 100 flights on my Chronos and overall has been trouble free.
Recently started flying it again and today noticed some slop in my swash. I'm not a hard smack pilot so I was wondering if anyone else expeience this? Also what is best way to address? It's about 1-2mm between the w halves.
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Rick, Team pilot , EGODRIFT, KST, Helidirect, Lynx/Oxy |
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04-20-2016, 06:37 PM | #2 (permalink) |
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Join Date: Jan 2009
Location: Michigan, slightly Northeast of Hell
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The ball portion of the swash is very easy to take apart. The lower bearing part, I haven't had to take apart, yet. When you say slop, do you mean the ball moves up and down or does the entire rotating portion of the swash move up and down? If the latter, check the seating of the bearing to rotating portion interface. If you could take a video of the issue so we can better assist.
Scott
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Spartan Vortex Inside,Team Scorpion KBDD Team Pilot ):> |
04-20-2016, 11:06 PM | #3 (permalink) |
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Join Date: Jan 2012
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I've heard the chronos swashes have a bit of slop in the bearing. Never seen one, just what I heard. The older compass swashes on the other hand (6hvu, 7hvu) are the tightest swashes I've ever seen. Some guys complained about them being stiff, but definitely no slop.
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04-21-2016, 03:25 AM | #4 (permalink) |
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Join Date: Jan 2009
Location: Michigan, slightly Northeast of Hell
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My swash has no slop whatsoever. In fact, the ball was tight. I took off the brass top piece, cleaned it, then put it back together. It was perfect.
Scott
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Spartan Vortex Inside,Team Scorpion KBDD Team Pilot ):> |
04-21-2016, 08:29 AM | #5 (permalink) | |
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Thread Starter
Join Date: May 2011
Location: New Jersey
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Quote:
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Rick, Team pilot , EGODRIFT, KST, Helidirect, Lynx/Oxy |
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04-21-2016, 11:48 AM | #6 (permalink) |
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Join Date: Jan 2009
Location: Michigan, slightly Northeast of Hell
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Okay, I'll take a look at my swash plate today after work and see if it is something that is easily repaired. Please bear in mind that I have never separated the lower, static portion of the swash from the rotating portion.
One thing I would ask you to do in the meantime is to position the swash so you can see the underside, then perform your test. Let us know exactly what is moving from the underside of the swash perspective -- bearing, etc. While you're looking at it, make sure all three screws are there. Thanks, Scott
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Spartan Vortex Inside,Team Scorpion KBDD Team Pilot ):> |
04-21-2016, 03:31 PM | #7 (permalink) |
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Join Date: Jan 2009
Location: Michigan, slightly Northeast of Hell
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I've looked at the swash. I appears the center rotating section is a press fit into the bearing--an extremely tight press fit. If that is slipping through the bearing you have only once choice short of replacing the swash plate assembly. That choice is to try green bearing retainer on the inside and re-press the center section back into place. If that is not the problem, then you need to get a new swash plate as Compass does not list parts required separately (from the parts list I have).
Scott
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Spartan Vortex Inside,Team Scorpion KBDD Team Pilot ):> |
04-21-2016, 06:52 PM | #8 (permalink) |
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Join Date: May 2011
Location: New Jersey
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Looking from the bottom, it looks as though the inner portion of bearing is moving from the center swash section. The section opposite side from screws. Also looks as if the bearing itself is leaking grease.
Possibly the bearing itself is going? But you say not a replaceable part ? Not too happy if my swash has worn like this. Never been in crash, checked logs, less then 60 flights, and I do not fly that hard. New swash almost $80!!!
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Rick, Team pilot , EGODRIFT, KST, Helidirect, Lynx/Oxy |
04-21-2016, 07:39 PM | #9 (permalink) |
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Join Date: Jan 2009
Location: Michigan, slightly Northeast of Hell
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If you are up to taking it apart, it sounds to me like the bearing is gone. It really depends on what you're up for. I'm certain you can source a bearing at places like RCBearings, Boca Bearings, VXBearings. What you'll have to do is pull the bearing without further damage and take very precise measurements, then go to those sites above and see what matches.
Scott
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