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e-Align T-REX 250-450-500-600 > T-REX 600 does temperature affect the 401/9253 setup?
 
 
Ragz
Senior Heliman
Location: India

My Posts This: Topic  Forum		I have recently built a trex600 electric and flying it around with the stock motor and ESC/BEC combination. The battery used is the stock align rx pack and a zippy 5000ma 6s pack. The gyro is a 401/9253 combo. On the 7th flight, the tail servo goes crazy. I have no idea what has happened. The moment the heli lifts off, the nose goes to the left and stops, and then goes to the left again and stops...

I checked the inline regulator with the 9253 servo and its showing 5.3v. What could be the problem. The ambient temperature is HOT. It was about 40C when I was flying it...and had a 2 flights before this started. Could it be the temperature thats affecting this? I will retry tomorrow when its a bit cooler.

One more thing to add here: The 7th flight (problem flight) was with a futaba 14mz/6014 combo. The earlier ones were with a regular futaba 9cap. Now I cannot imagine that the radio could affect tailservo.. because I have 3 nitro trex 600s all on the 14mz and they are all fine.

Any advice? Thanks in advance.

Anurag
06-19-2009 03:11 PM
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steve 01
Senior Heliman
Location: Grand Rapids MI

My Posts This: Topic  Forum		Sounds like the tail servo is failing, try replacing it with some other digital and give it a go
06-19-2009 03:25 PM
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Ben-T-Spindle
rrProfessor
Location: Central Illinois

My Posts This: Topic  Forum		The 9253 is a very old out of production servo and was not that that good on large helicopters. It’s probably worn out. Just replace it with a new S9254.



... BTS
06-19-2009 05:29 PM
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Ragz
Senior Heliman
Location: India

My Posts This: Topic  Forum		Ok will put a new 9254 then.. thanks guys

Anurag
06-20-2009 01:29 PM
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Ragz
Senior Heliman
Location: India

My Posts This: Topic  Forum		I have swapped the old 9253 with a new 9254. First I tested with the standard 40mhz 9cap radio and it was ok. But when I try it with a 6014 rx with the 14mz, the tail plays up again. I am stumped. I have 2 more 600nitro setups with the futaba 608fs reciever and they are rock solid. Could it be a faulty 6014 rx? Its brand new. Could it be the ESC interferring with the 6014?

thanks in advance.

Anurag
06-29-2009 06:43 AM
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naked painter
Veteran
Location: Mid glamorgan uk

My Posts This: Topic  Forum		Check the rudder/colletcive pot on your tx. I had this wear out and the tail would kick when the stick moved.
06-29-2009 07:56 AM
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Ragz
Senior Heliman
Location: India

My Posts This: Topic  Forum		Hi, Its a 3 month old radio.. I would seriously doubt if its worn out already. It has been sparingly used.

thanks

Anurag
06-29-2009 08:22 AM
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naked painter
Veteran
Location: Mid glamorgan uk

My Posts This: Topic  Forum		Good point, mine was years old...
06-29-2009 10:10 AM
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helinelly
Veteran
Location: st.helens england

My Posts This: Topic  Forum		nothing wrong with the s9253

you can still buy these servos from hongkong......
i use the s9253 on my rex 600 and it is rock in 3d........

just my 2cent....kind regards helinelly

if it broken.....glue the bast#$d...keep flying..i tell the wife my crashes cost £20! works for me
06-30-2009 05:14 PM
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garyl
Senior Heliman
Location: taxachussetts

My Posts This: Topic  Forum		The 401 is effected by temperature but it only causes a drift. When I turn on the gyro (in the heli) in the cool house then take it outside in the heat to fly the tail will drift a little. When I cycle the power to the gryo in the outside temperature the drift goes away.
06-30-2009 06:11 PM
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Sherman89
Senior Heliman
Location: Morriston Fl

My Posts This: Topic  Forum		It is possible that there is as problem with the 6014 Rx, take a good 608 that you have a replace the 6014, that way you have eliminated a possible conflict. Please report back with results.
07-02-2009 11:57 AM
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Ragz
Senior Heliman
Location: India

My Posts This: Topic  Forum		Good idea about swapping the reciever... will report back ASAP.

Anurag
07-02-2009 12:12 PM
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Ragz
Senior Heliman
Location: India

My Posts This: Topic  Forum		Hi, I got time this weekend to work on the heli and swapped the 6014 with another brand new 6014. SAME PROBLEM. I have a twitchy tail. I think its probably the gyro... But thats also a new one.. Could it be the power supply? I am using the align lipo with the align bec. Are they known to have any problem?

thanks

Anurag
08-03-2009 07:36 AM
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Ben-T-Spindle
rrProfessor
Location: Central Illinois

My Posts This: Topic  Forum		Try a shorter servo arm and turn down the gain a little more.

... BTS
08-03-2009 11:57 AM
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Sherman89
Senior Heliman
Location: Morriston Fl

My Posts This: Topic  Forum		Ragz, have you replaced the 6014 with a good 608Rx?
08-03-2009 03:51 PM
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Ragz
Senior Heliman
Location: India

My Posts This: Topic  Forum		Sherman89, I replaced the 6014 with a another 6014. I will now put a 608 as well... just for academic reasons... If that works, then whats the conclusion?

Anurag
08-04-2009 06:57 AM
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Sherman89
Senior Heliman
Location: Morriston Fl

My Posts This: Topic  Forum		Ragz, if the 608Rx works then you have an issue with the 6014Rx. If your 9C works in the heli and the 608 does not work then you have a Tx to Rx issue when you go to the 14z and if that is the case I would look for a setup mistake in programming with the E.
08-04-2009 12:00 PM
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e-Align T-REX 250-450-500-600 > T-REX 600 does temperature affect the 401/9253 setup?
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