gp750 help

[raptor]

Hi
Can any one help, i have a trex 450 s with a align gp 750 gyro and a ds520 tail servo.
I have test flown it and it was holding fine , then it started to wag the tail, tried diffrent sen settings in my hand set witch is a dsx9, the gyro is socure and the belt is tight.

Any help would be great thanks
Matthew

[lex7919]

Could be a number of things but first can you list out the settings you have dialed in and also what settings are actually on the gyro servo type and model type been the ones that would be most help full.

Sudden wag could be something like the tail is locking under load, bearings could be causing this etc but the above info would give more to go on.

[raptor]

Hi i have the gyro sens in d/r set at pos 0 45% and pos 1 at 65% witch is what reconmended in the leaflet and the settings on the gyro is standard band at 1520 its set to digital servo revers rotation and i have the delay set acording to the leaflet sorry not a lot of detail but its all about a flashing light.

[lex7919]

right ok ill try my best,

Delay which colour are you setting it on? should be Red for 450 size.
You can set further delay in this step but you should just leave it at 0 ie center stick after setting the colour to Red press set and exit program mode that will be good for the 450.

If thats all how it should be then attention turns to mechanical set up, i would go over the tail carefully check its very smooth by hand check bearings and grease the thrust races,
Are you running tthe idler pulley on the tail? remove it if you are.