HK500GT Tail Help

peterkjr2009 · 06-19-2012, 12:10 AM

So I've had my 500 for nearly 1.5 years now, replaced the main, feathering and tail shafts with align ones, and has been flying great all this time...Then I decided to mess with it, and now I have a little wag I can't get rid off.
Basically I noticed the tail grips were getting a bit sloppy, I rembered reading a thread about gently filing down the hub to stop the grips rocking etc.
Did that, put the tail back together, all seemed great, took it for a flight, wag wag, wag, I adjusted gain up and down, tried using delay, nothing worked.
Fired the heli up on the bench, tried moving tail push rod, by hand, it was nearly impossible to move, even at a fairly low speed, which confused me as tail felt so smooth, I've replaced the hub and grips with align ones, now the wag is down to about an inch either way, but I just can't get rid of it. Also when I flicked to. idle up the other day, something made a screeching sound. I've since had the whole tail system apart to check bearings etc. Anyone got any ideas, I'm stumped, I should of just left it alone. Lol

xpftp · 06-19-2012, 03:38 AM

belt to lose .. might need new belt.. old one strached out ..

peterkjr2009...I flicked to. idle up the other day, something made a screeching sound..

peterkjr2009 · 06-19-2012, 10:17 AM

I took the whole tail apart last night, and the belt and all bearins seemed fine, flew again today, still wagging, I. guess I need to strip it down, and check for vibes as i go.

xpftp · 06-19-2012, 02:08 PM

ok if belt is ok . what gyro do you use and other basic info if you can please .

peterkjr2009 · 06-19-2012, 02:11 PM

gyro is an align gp750 and tail servo is align ds520, running 6v.

xpftp · 06-19-2012, 02:17 PM

http://rc.runryder.com/helicopter/ga...750_Manual.pdf

try reseting the hz to it i think its called .. 1520 to 760 or other way around so on .. maybe it forgot after bein no power so long

ddj74 · 06-19-2012, 04:53 PM

While the heli is not powered up try moving the tail by hand...if stiff then that's why its wagging. As the slider moves on the tail shaft and binds it causes over correction when it gets past the area it's getting stuck at and vise versa. Could also be a bad setting in the gyro and not finding the correct center.

06-19-2012, 12:10 AM	#1
peterkjr2009 Registered Users Join Date: Oct 2010 Location: uk	HK500GT Tail Help So I've had my 500 for nearly 1.5 years now, replaced the main, feathering and tail shafts with align ones, and has been flying great all this time...Then I decided to mess with it, and now I have a little wag I can't get rid off. Basically I noticed the tail grips were getting a bit sloppy, I rembered reading a thread about gently filing down the hub to stop the grips rocking etc. Did that, put the tail back together, all seemed great, took it for a flight, wag wag, wag, I adjusted gain up and down, tried using delay, nothing worked. Fired the heli up on the bench, tried moving tail push rod, by hand, it was nearly impossible to move, even at a fairly low speed, which confused me as tail felt so smooth, I've replaced the hub and grips with align ones, now the wag is down to about an inch either way, but I just can't get rid of it. Also when I flicked to. idle up the other day, something made a screeching sound. I've since had the whole tail system apart to check bearings etc. Anyone got any ideas, I'm stumped, I should of just left it alone. Lol

06-19-2012, 03:38 AM	#2
xpftp Registered Users Join Date: Mar 2011 Location: United States	belt to lose .. might need new belt.. old one strached out .. peterkjr2009...I flicked to. idle up the other day, something made a screeching sound.. __________________ B400 gotta love the old girl / 250 / 500 .. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. Turn Up The Juice. See What Shakes Lose

06-19-2012, 02:08 PM	#4
xpftp Registered Users Join Date: Mar 2011 Location: United States	ok if belt is ok . what gyro do you use and other basic info if you can please . __________________ B400 gotta love the old girl / 250 / 500 .. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. Turn Up The Juice. See What Shakes Lose

06-19-2012, 02:17 PM	#6
xpftp Registered Users Join Date: Mar 2011 Location: United States	http://rc.runryder.com/helicopter/ga...750_Manual.pdf try reseting the hz to it i think its called .. 1520 to 760 or other way around so on .. maybe it forgot after bein no power so long __________________ B400 gotta love the old girl / 250 / 500 .. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. Turn Up The Juice. See What Shakes Lose

06-19-2012, 04:53 PM	#7
ddj74 Registered Users Join Date: Dec 2011 Location: Winter Haven, Florida 33880	While the heli is not powered up try moving the tail by hand...if stiff then that's why its wagging. As the slider moves on the tail shaft and binds it causes over correction when it gets past the area it's getting stuck at and vise versa. Could also be a bad setting in the gyro and not finding the correct center. __________________ ☆☆☆T-REX 700 DFC v3, AR7200BX, ICE2 160HV,DC-UP MARK II ☆☆☆MKS HBL950 & MKS HBL980, GRYPHON EXTREME REGULATOR ☆☆☆POWERED BY THUNDER POWER LIPO'S

06-19-2012, 10:17 AM	#3
peterkjr2009 Registered Users Thread Starter Join Date: Oct 2010 Location: uk	I took the whole tail apart last night, and the belt and all bearins seemed fine, flew again today, still wagging, I. guess I need to strip it down, and check for vibes as i go.

06-19-2012, 02:11 PM	#5
peterkjr2009 Registered Users Thread Starter Join Date: Oct 2010 Location: uk	gyro is an align gp750 and tail servo is align ds520, running 6v.

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