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****???? - 7/11/2012 9:44 PM   
brrzee


 

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From: Selkirk, MB, CANADA
Status: offline 		Trying to setup my retract system on my Seagull Models Pilatus PC-9 1.20...While playing with my landing gear quit retracting (nose wheel works). My transmitter battery was getting very low...could that be the issue or is something else going on. I can get my nose gear to retract but for some reason the ones on the wings won't.

Please if somebody has had the same issue or knows a fix let me know. Checked the receiver battery, more than enough juice.

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RE: ****???? - 7/11/2012 10:07 PM   
BarracudaHockey



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Status: offline 		No your transmitter battery would not cause that. If the signal is getting out it is getting out, if its not its not.

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RE: ****???? - 7/11/2012 10:20 PM   
alltumbs


 

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Not familiar with the Seagull model PC-9 retracts. Are they mechanical, electric, or pneumatic ??   


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RE: ****???? - 7/11/2012 11:35 PM   
brrzee


 

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From: Selkirk, MB, CANADA
Status: offline 		Appears servo is locked....I have gone through (x2) JR RT-88 servos before the plane has even hit the air. Those nose gear locked after about 5 retracts and now the wing gear...JR RETRACT SERVOS SUCK!!!!

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RE: ****???? - 7/11/2012 11:43 PM   
Herbs_007



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From: MelbourneVic, AUSTRALIA
Status: offline 		I beleive JR retract servo's can only take 4.8 volts, any more will cause it to crap itself. Better off getting a good metal gear ball bearing servo and use that so can adjust the end points.

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RE: ****???? - 7/12/2012 5:14 AM   
brrzee


 

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From: Selkirk, MB, CANADA
Status: offline 		Yep, tried everything and servo is locked. I can't believe I spent almost $100 on two servo's that lasted less than 15 cyles. At least this happened during the building phase and not on a landing when flying.

This is not a happy JR customer right now.

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RE: ****???? - 7/12/2012 5:09 PM   
raptureboy


 

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Status: offline 		Yep, if your using a 6v receiver battery then they are toast. My friend just went through 2 before he read the box 4.8 only! Sorry for the loss. Dumb they don't make it clearer with big red words


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RE: ****???? - 7/12/2012 7:53 PM   
brrzee


 

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From: Selkirk, MB, CANADA
Status: offline 		Checked on the net and they are rated between 4.8 - 6 vlts. I will be attending my LHS to see what is going on since they sold me the servo's and battery indicating all would be good.

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RE: ****???? - 7/13/2012 2:43 AM   
Herbs_007



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From: MelbourneVic, AUSTRALIA
Status: offline 		Well its does state 4.8v to 6v for RT-88 retract servo, other versions NES 513, 713 & 791 says to use 4.8V. I have only ever used Hitec retract servos in the past, the 4.8v always turned me off JR versions. But why is the RT-88 dying all the time, are you over driving it in either direction? Can you adjust the end points on the RT-88, on the Hitec servo you cant, but Spektrum version you can.

http://www.horizonhobby.com/products/rt88-retract-servo-JSP20080#t2

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