up dated batts from 4.8 to 6.0 now have a problem
03-26-2010 | 11:15 PM
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From: Paragould, AR
up dated batts from 4.8 to 6.0 now have a problem
ok i have updated my batterys in my planes from 4.8 to 6.0 volts... Now i have a problem..... I am useing a futaba 7c radio and futaba 617 recievers... and s 3004 servos.... on one of my planes.... i have a problem with the rudder servo going back and forth after you release the stick does anyone know what can cause this
03-26-2010 | 11:20 PM
#2
RE: up dated batts from 4.8 to 6.0 now have a problem
A fully charged 6.0v receiver pack will normally peak out in the high 6.x to low 7.x voltage range. This is often the maximum amount of voltage that the receiver and servos can take and you may see servo jitters when you first power up a freshly charged receiver battery. If you let the plane sit with the radio system on for a minute or two, the voltage level will drop to the normal operating range and you will then be good to go.
Standing too close to your receiver with your transmitter antenna fully extended can sometimes oversaturate your receiver on 72Mhz systems and cause temporary jittering. This normally clears up if you take a couple of steps back from your plane with your transmitter in hand.
Test a little further and you'll like find one of these problems is the source of your trouble. Since you're flying with a 7C FASST transmitter and 617 receiver, it's most likely the former.
Remember that Futaba, Airtronics, and Hitec 2.4Ghz FHSS receivers all fly perfectly fine with 4.8v receiver packs. Only Spektrum/JR receivers require 6v receiver batteries to help prevent "brown out" or "lock out" conditions.
Standing too close to your receiver with your transmitter antenna fully extended can sometimes oversaturate your receiver on 72Mhz systems and cause temporary jittering. This normally clears up if you take a couple of steps back from your plane with your transmitter in hand.
Test a little further and you'll like find one of these problems is the source of your trouble. Since you're flying with a 7C FASST transmitter and 617 receiver, it's most likely the former.
Remember that Futaba, Airtronics, and Hitec 2.4Ghz FHSS receivers all fly perfectly fine with 4.8v receiver packs. Only Spektrum/JR receivers require 6v receiver batteries to help prevent "brown out" or "lock out" conditions.
03-26-2010 | 11:54 PM
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From: Paragould, AR
RE: up dated batts from 4.8 to 6.0 now have a problem
yeah i went to 6.0 because of just in case i was to drop a cell in a battery down the road that i wouldnt lose a plane that the bat would drop to 4.8 and i would be fine and these bats where a good price and better mah but why would just a rudder servo do that and not the rest of them
03-27-2010 | 12:26 AM
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From: Winnipeg,
MB, CANADA
RE: up dated batts from 4.8 to 6.0 now have a problem
I don't think the 6 volt battery is your problem. Take another servo and test it in the receiver (rudder slot) and see if it does the same thing. You can test it out of the plane.
03-27-2010 | 12:57 AM
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From: kuna,
ID
RE: up dated batts from 4.8 to 6.0 now have a problem
do you have any extensions on the rudder servo, three things will make a servo overshoot 1. too many extensions on that servo 2. a dirty or wornout pot 3. a analog servo that is older cannot keep up with the speed of the signal, newer analog servos and corelss servos seldom have this issue, this is noted on the hitec and airtronics support pages
03-27-2010 | 01:10 AM
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From: Paragould, AR
RE: up dated batts from 4.8 to 6.0 now have a problem
ok well i put a new servo in and it solved the problem that servo probly did not have 40 flights on it wonder what happen it is a futaba s 3004
03-27-2010 | 02:11 AM
#8
RE: up dated batts from 4.8 to 6.0 now have a problem
ORIGINAL: bbrown2828
now i cant get the dang plane to balance since i moved up to the 6 volt batt
now i cant get the dang plane to balance since i moved up to the 6 volt batt
03-27-2010 | 07:22 AM
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From: Moore,
OK
RE: up dated batts from 4.8 to 6.0 now have a problem
I had two servos go out in the same way as you describe. Both were in the rudder, and both were 3004's. Weird. I have since replaced the rudder with a 3010. I figured I was putting too much stress on the rudder servo (it's on an Edge 540t). I had it "go out" in flight one time, talk about scary!
03-27-2010 | 09:07 AM
#11
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RE: up dated batts from 4.8 to 6.0 now have a problem
ORIGINAL: bigedmustafa
Remember that Futaba, Airtronics, and Hitec 2.4Ghz FHSS receivers all fly perfectly fine with 4.8v receiver packs. Only Spektrum/JR receivers require 6v receiver batteries to help prevent ''brown out'' or ''lock out'' conditions.
Remember that Futaba, Airtronics, and Hitec 2.4Ghz FHSS receivers all fly perfectly fine with 4.8v receiver packs. Only Spektrum/JR receivers require 6v receiver batteries to help prevent ''brown out'' or ''lock out'' conditions.
Ed while this may be technically true I must admit I do have a problem with the ''perfectly fine'' part. While those brands may be at less risk of brown out than JR/Spek I beleve they are still at a greater risk than what we have gotten away with in the past with our 72 systems.
Reading the Hitec manuals for example it is strongly suggested in sutble hints throughout the info sheets to use 6 volts. They never come out and say use only 6.0 volt but the meaning quite clear.
I use only 6 volts with all my 2.4 ships: 7 XPS Rx's on JR and 8 Hitec FHSS on Hitec and for the majority it does not make sense to do otherwise as well as reaping the advantages of faster servos at the same time.
I always suggest to anyone who asks that it is poor practice to use 4.8 packs especially low capacity type shipped with full radio systems, with any 2.4 Rx. It is my beleif that only 6 volt packs of about double the capacity of what was normally used in the past for 72 system
In other words if you used default packs of 4.8 volts NiCd 600 Mah then use no less than 6 volt Nimh 1200 mah or greater.
John
03-27-2010 | 12:00 PM
#12
RE: up dated batts from 4.8 to 6.0 now have a problem
I quit buying Futaba servos after nearly half of my over 30 3004's developed this exact problem. I was told it is caused by a dirty potentiometer, or 'dirty pots'. Hitec servos all the way for me from now on.
03-27-2010 | 12:39 PM
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From: Moore,
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RE: up dated batts from 4.8 to 6.0 now have a problem
ORIGINAL: Deadeye
I quit buying Futaba servos after nearly half of my over 30 3004's developed this exact problem. I was told it is caused by a dirty potentiometer, or 'dirty pots'. Hitec servos all the way for me from now on.
I quit buying Futaba servos after nearly half of my over 30 3004's developed this exact problem. I was told it is caused by a dirty potentiometer, or 'dirty pots'. Hitec servos all the way for me from now on.
03-27-2010 | 12:41 PM
#14
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RE: up dated batts from 4.8 to 6.0 now have a problem
ORIGINAL: JohnBuckner
Ed while this may be technically true I must admit I do have a problem with the ''perfectly fine'' part. While those brands may be at less risk of brown out than JR/Spek I beleve they are still at a greater risk than what we have gotten away with in the past with our 72 systems.
Reading the Hitec manuals for example it is strongly suggested in sutble hints throughout the info sheets to use 6 volts. They never come out and say use only 6.0 volt but the meaning quite clear.
I use only 6 volts with all my 2.4 ships: 7 XPS Rx's on JR and 8 Hitec FHSS on Hitec and for the majority it does not make sense to do otherwise as well as reaping the advantages of faster servos at the same time.
I always suggest to anyone who asks that it is poor practice to use 4.8 packs especially low capacity type shipped with full radio systems, with any 2.4 Rx. It is my beleif that only 6 volt packs of about double the capacity of what was normally used in the past for 72 system
In other words if you used default packs of 4.8 volts NiCd 600 Mah then use no less than 6 volt Nimh 1200 mah or greater.
John
ORIGINAL: bigedmustafa
Remember that Futaba, Airtronics, and Hitec 2.4Ghz FHSS receivers all fly perfectly fine with 4.8v receiver packs. Only Spektrum/JR receivers require 6v receiver batteries to help prevent ''brown out'' or ''lock out'' conditions.
Remember that Futaba, Airtronics, and Hitec 2.4Ghz FHSS receivers all fly perfectly fine with 4.8v receiver packs. Only Spektrum/JR receivers require 6v receiver batteries to help prevent ''brown out'' or ''lock out'' conditions.
Ed while this may be technically true I must admit I do have a problem with the ''perfectly fine'' part. While those brands may be at less risk of brown out than JR/Spek I beleve they are still at a greater risk than what we have gotten away with in the past with our 72 systems.
Reading the Hitec manuals for example it is strongly suggested in sutble hints throughout the info sheets to use 6 volts. They never come out and say use only 6.0 volt but the meaning quite clear.
I use only 6 volts with all my 2.4 ships: 7 XPS Rx's on JR and 8 Hitec FHSS on Hitec and for the majority it does not make sense to do otherwise as well as reaping the advantages of faster servos at the same time.
I always suggest to anyone who asks that it is poor practice to use 4.8 packs especially low capacity type shipped with full radio systems, with any 2.4 Rx. It is my beleif that only 6 volt packs of about double the capacity of what was normally used in the past for 72 system
In other words if you used default packs of 4.8 volts NiCd 600 Mah then use no less than 6 volt Nimh 1200 mah or greater.
John
03-27-2010 | 04:22 PM
#15
RE: up dated batts from 4.8 to 6.0 now have a problem
JohnBuckner and Gray Beard certainly have a point. Just because a 4.8v 600Mah receiver pack meets the minimum requirements for you plane doesn't mean it's always the smart choice.
03-27-2010 | 05:28 PM
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From: Poolesville, MD
RE: up dated batts from 4.8 to 6.0 now have a problem
ORIGINAL: Deadeye
I quit buying Futaba servos after nearly half of my over 30 3004's developed this exact problem. I was told it is caused by a dirty potentiometer, or 'dirty pots'. Hitec servos all the way for me from now on.
I quit buying Futaba servos after nearly half of my over 30 3004's developed this exact problem. I was told it is caused by a dirty potentiometer, or 'dirty pots'. Hitec servos all the way for me from now on.
I'm using 6v battery on a pull-pull setup, and the Hitec servo will swing back and forth as it seeks center especially if the engine is not running.
It seems the vibrations of the engine nudges the servo just enough to get it to register center, so with the plane running this tends to stop more quickly.
Ironically cheaper servos ( e.g. HD 1501MG ) have no such problem....
I've had more problems with Hitec servos than any other manufacturer, not to say they are bad...
03-27-2010 | 09:20 PM
#19
RE: up dated batts from 4.8 to 6.0 now have a problem
hi be sure that the wiring in the plan is placed correctly-keep the antenna away from all servo wires-and the battery wire and switch away from both of the other two-very important basic to have a good TX to RX signal REGARDS ENJOY TONY
