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View Full Version : how do i get rid of the click on my throttle dx7


nwtampaguy34
04-03-2007, 10:36 PM
Just wondering if there is a link or does someone know how to get the click out of my throtte sitck on my dx7??? i know i have to open the back up but i dont want to just start unscrewing stuff that i dont need to, any help would be awsome

Paul Hinz
04-04-2007, 10:08 AM
When you open up the back of the transmitter the throttle will have a metal strap with a V bend in it. Remove the two screws that hold the strap on. In the accessories bag there should be a strap that does not have the V bend in it instal that one where you took off the other strap and adjust the tension to your liking.

Paul

valsalva
04-10-2007, 08:55 PM
Is your Tx the helicopter version?? The reason I ask is because when I bought my dx7 at an LHS I did'nt notice that he gave the airplane version by accident. There's few differences, but one of them is that the throttle stick is "ratcheted" far more than the heli version. That was the first thing that clued me in that something was wrong. I remembered the display tx had a very smooth feel to the stick. Not to mention the little airplane logo on the lower right side, that was a dead giveaway! I've since returned it and all is well now.

Hughes500Bob
04-10-2007, 11:32 PM
My Heli version DX-7 has a smooth movement of throttle throughtout the total range that holds its position. The accesory bag has the flat metal bar with a very pronounced V-notch at mid section. I am assuming I have the correct set-up .... Yes?

stevehonn
04-11-2007, 04:56 AM
My Heli version DX-7 has a smooth movement of throttle throughtout the total range that holds its position. The accesory bag has the flat metal bar with a very pronounced V-notch at mid section. I am assuming I have the correct set-up .... Yes?

Yes.

dtang
04-11-2007, 09:55 PM
I just received my dx7 heli and although it is much less pronounced than a stick set up for planes, I do feel a very slight "click" in my throttle. Very noticable when compared to the 9CHS it replaced.

My guess is that loosening the throttle tension screw very slightly will result in a much smoother stick.

Here is a direct link to the DX7 Manual (http://www.spektrumrc.com/ProdInfo/Files/SPM2710_DX7_Manual.pdf)

I believe what you would like to do is sort of covered starting on page 11. They do not go into explicit detail but I am sure you can figure it out.

t-rexn8
04-12-2007, 01:46 AM
Yeah me too. My heli version is still "bumpy". My 9303 is the smoothest Ive felt.

Hughes500Bob
04-12-2007, 06:16 PM
I just finished opening up my Heli version Mode 2 DX-7. 6 screws and the case is open. Open carefully as the battery wire connects between the 2 case sides. Open it bottom to bottom like a clam shell.

There are 2 screws holding the throttle tension plate. The top screw is a black coarse screw clamping the tension bar to the plastic post. The bottom silver screw is a machine screw going into a brass threaded post. This silver screw is the tensioning screw. My tension screw was very loose and I had the slight ratcheting that you also are feeling. The plastic that rubs against the tensioner has small ridges in it, but the bar is smooth ..... but mine had some burrs on the edges. :( I removed the tesioning bar and used a jewelers file to file the edges smooth. I put a dab of dielectric grease on the plastic ridges, replaced the coarse screw at the top in the circular plate hole and tightened it carefully. I put some 242 thread lock (blue) on the machine screw and tightned it into the oval hole until it just touched the tensioning plate ever so slightly. :glasses2: PERFECT ! Throttle / collective is silky smooth and still holds position. I think it was the burrs on the tensioning plate edges rubbing against the ridges that I felt.

Give it a try! :hug:

t-rexn8
04-12-2007, 07:32 PM
Nice work. Im going to open tonight :D

dtang
04-13-2007, 10:08 PM
I'm going to see if it just wears itself in... I'm not lazy... :oops:

mojopt
07-26-2007, 03:15 PM
I don't know if this is the way to do it, but I simply slipped a short (1"+/-) of silicon fuel line over the tension spring. The action is very smooth, still has some resistance to dampen the action, and is easily removed.