RE: CNC HEAD INSTALLATION
Hello- I have the same head. I ran into the same problem. The mixing lever's on the washout had to be drilled to execpt the pin's too. This is the third or forth head I've assembled, so I just used my best judgement. I noticed the binding too. I used thread lock on every part I could. I tightened everything to the limit. After a slow run up, I spooled it up to maybe a 1/4 throtle and moved the swash plate around it limit's. Then it seemed to loosen up alot. I've put maybe ten flight's on it and it's right were I want it, as far as binding and free movement. Just assemble it well and break it in well. It will be fine. This is my first metal head, so don't take my advice to the bank. This is my experience so far. I'm looking for the metal flybar control rods. Does anyone know were I can find a set? The package said " complete metal parts from the swash plate up." Well, I think the control rods classify as such, don't they?
Posted on: 1/29/2009 7:18 PM by Author "av8trbbv" in the forum "Exceed RC Support - Helicopter"
http://www.rcuniverse.com/forum/fb.asp?m=8416874

RE: JR DS890G Gyro Servo
Thanks for the reply. I was just talking to my wife about seeing if they will upgrade me to the 8900g as well. Even if I have to pay the difference on the two I don't care. I feel the same about the servo's I put in my bird. We all payed a pretty penny for the gyro/servo, and we get poor quailty. Frustrating to say the least. I have the raptor 30v2. The 8900g does seem to be the dominat combo. I went with the advice of the hobby shop heli guy, that said the 890g set up was the best option. When they work, they work well, but when I'm inverted ten feet of the deck and the **** tail let's go, I just want to turn around wait for the sound of destruction. I put the spectrum ds821 back in. It works fine. It has twice the torque,but half the speed. Oh well, it keeps me flying at least. Until today when I was practicing auto's, and bang. Six hours later and she back up. Now I get to set it up all over. I love this hobby. I always wonder when I'll say I've crashed enough and quit, but that will never happen.
Posted on: 8/14/2008 9:23 PM by Author "av8trbbv" in the forum "RC Radios, Transmitters, Receivers, Servos, gyros"
http://www.rcuniverse.com/forum/fb.asp?m=7847009

JR DS890G Gyro Servo
I was just wondering if any one else is having problems with the DS890g Servo? I bought the JR G770 3D Gyro & DS 890G Servo combo. The first servo fried out after about 20 to 30 flights. So I put a extra DS821 servo I had in it's place. That servo worked fine, but it is alot slower than the 890. I just had to turn down the gain to stop the tail wag, and it performed well until the replacement ds890g came back from JR. Now I put the new ds890g back in and this one fried out in about 6 flights. So, can anyone give some input to possible cause's, or is anyone else suffering the same loss. The first time it resulted in a crash, and a fix. This time I had a better time bringing it in undamaged. When the tail lets go at 5 feet of the deck it gets pretty exciting. Thank god for throttle hold! The bottom of the servo was very hot. The servo would travel only to the left, but very slowly. Same deal on the first servo as well. I got the new servo, but no explaination.
Posted on: 8/13/2008 7:25 PM by Author "av8trbbv" in the forum "RC Radios, Transmitters, Receivers, Servos, gyros"
http://www.rcuniverse.com/forum/fb.asp?m=7842769